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git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix double free in in the error path when opening perf.data from
multiple files in a directory instead of from a single file
- Sync the msr-index.h copy with the kernel sources
- Fix error when printing 'weight' field in 'perf script'
- Skip failing sigtrap test for arm+aarch64 in 'perf test'
- Fix failure to use a cpu list for uncore events in hybrid systems,
e.g. Intel Alder Lake
* tag 'perf-tools-fixes-for-v5.17-2022-02-24' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf script: Fix error when printing 'weight' field
tools arch x86: Sync the msr-index.h copy with the kernel sources
perf data: Fix double free in perf_session__delete()
perf evlist: Fix failed to use cpu list for uncore events
perf test: Skip failing sigtrap test for arm+aarch64
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In SPE traces the 'weight' field can't be printed in 'perf script'
because the 'dummy:u' event doesn't have the WEIGHT attribute set.
Use evsel__do_check_stype(..) to check this field, as it's done with
other fields such as "phys_addr".
Before:
$ perf record -e arm_spe_0// -- sleep 1
$ perf script -F event,ip,weight
Samples for 'dummy:u' event do not have WEIGHT attribute set. Cannot print 'weight' field.
After:
$ perf script -F event,ip,weight
l1d-access: 12 ffffaf629d4cb320
tlb-access: 12 ffffaf629d4cb320
memory: 12 ffffaf629d4cb320
Fixes: b0fde9c6e291e528 ("perf arm-spe: Add SPE total latency as PERF_SAMPLE_WEIGHT")
Signed-off-by: German Gomez <german.gomez@arm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220221171707.62960-1-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes in:
3915035282573c5e ("KVM: x86: SVM: move avic definitions from AMD's spec to svm.h")
Addressing these tools/perf build warnings:
diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h'
That makes the beautification scripts to pick some new entries:
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before
$ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after
$ diff -u before after
--- before 2022-02-22 17:35:36.996271430 -0300
+++ after 2022-02-22 17:35:46.258503347 -0300
@@ -287,6 +287,7 @@
[0xc0010114 - x86_AMD_V_KVM_MSRs_offset] = "VM_CR",
[0xc0010115 - x86_AMD_V_KVM_MSRs_offset] = "VM_IGNNE",
[0xc0010117 - x86_AMD_V_KVM_MSRs_offset] = "VM_HSAVE_PA",
+ [0xc001011b - x86_AMD_V_KVM_MSRs_offset] = "AMD64_SVM_AVIC_DOORBELL",
[0xc001011e - x86_AMD_V_KVM_MSRs_offset] = "AMD64_VM_PAGE_FLUSH",
[0xc001011f - x86_AMD_V_KVM_MSRs_offset] = "AMD64_VIRT_SPEC_CTRL",
[0xc0010130 - x86_AMD_V_KVM_MSRs_offset] = "AMD64_SEV_ES_GHCB",
$
And this gets rebuilt:
CC /tmp/build/perf/trace/beauty/tracepoints/x86_msr.o
LD /tmp/build/perf/trace/beauty/tracepoints/perf-in.o
LD /tmp/build/perf/trace/beauty/perf-in.o
CC /tmp/build/perf/util/amd-sample-raw.o
LD /tmp/build/perf/util/perf-in.o
LD /tmp/build/perf/perf-in.o
LINK /tmp/build/perf/perf
Now one can trace systemwide asking to see backtraces to where those
MSRs are being read/written with:
# perf trace -e msr:*_msr/max-stack=32/ --filter="msr>=AMD64_SVM_AVIC_DOORBELL && msr<=AMD64_SEV_ES_GHCB"
^C#
If we use -v (verbose mode) we can see what it does behind the scenes:
# perf trace -v -e msr:*_msr/max-stack=32/ --filter="msr>=AMD64_SVM_AVIC_DOORBELL && msr<=AMD64_SEV_ES_GHCB"
Using CPUID AuthenticAMD-25-21-0
0xc001011b
0xc0010130
New filter for msr:read_msr: (msr>=0xc001011b && msr<=0xc0010130) && (common_pid != 1019953 && common_pid != 3629)
0xc001011b
0xc0010130
New filter for msr:write_msr: (msr>=0xc001011b && msr<=0xc0010130) && (common_pid != 1019953 && common_pid != 3629)
mmap size 528384B
^C#
Example with a frequent msr:
# perf trace -v -e msr:*_msr/max-stack=32/ --filter="msr==IA32_SPEC_CTRL" --max-events 2
Using CPUID AuthenticAMD-25-21-0
0x48
New filter for msr:read_msr: (msr==0x48) && (common_pid != 2612129 && common_pid != 3841)
0x48
New filter for msr:write_msr: (msr==0x48) && (common_pid != 2612129 && common_pid != 3841)
mmap size 528384B
Looking at the vmlinux_path (8 entries long)
symsrc__init: build id mismatch for vmlinux.
Using /proc/kcore for kernel data
Using /proc/kallsyms for symbols
0.000 Timer/2525383 msr:write_msr(msr: IA32_SPEC_CTRL, val: 6)
do_trace_write_msr ([kernel.kallsyms])
do_trace_write_msr ([kernel.kallsyms])
__switch_to_xtra ([kernel.kallsyms])
__switch_to ([kernel.kallsyms])
__schedule ([kernel.kallsyms])
schedule ([kernel.kallsyms])
futex_wait_queue_me ([kernel.kallsyms])
futex_wait ([kernel.kallsyms])
do_futex ([kernel.kallsyms])
__x64_sys_futex ([kernel.kallsyms])
do_syscall_64 ([kernel.kallsyms])
entry_SYSCALL_64_after_hwframe ([kernel.kallsyms])
__futex_abstimed_wait_common64 (/usr/lib64/libpthread-2.33.so)
0.030 :0/0 msr:write_msr(msr: IA32_SPEC_CTRL, val: 2)
do_trace_write_msr ([kernel.kallsyms])
do_trace_write_msr ([kernel.kallsyms])
__switch_to_xtra ([kernel.kallsyms])
__switch_to ([kernel.kallsyms])
__schedule ([kernel.kallsyms])
schedule_idle ([kernel.kallsyms])
do_idle ([kernel.kallsyms])
cpu_startup_entry ([kernel.kallsyms])
secondary_startup_64_no_verify ([kernel.kallsyms])
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Maxim Levitsky <mlevitsk@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Link: http://lore.kernel.org/lkml/YhVKxaft+z8rpOfy@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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When perf_data__create_dir() fails, it calls close_dir(), but
perf_session__delete() also calls close_dir() and since dir.version and
dir.nr were initialized by perf_data__create_dir(), a double free occurs.
This patch moves the initialization of dir.version and dir.nr after
successful initialization of dir.files, that prevents double freeing.
This behavior is already implemented in perf_data__open_dir().
Fixes: 145520631130bd64 ("perf data: Add perf_data__(create_dir|close_dir) functions")
Signed-off-by: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Budankov <abudankov@huawei.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220218152341.5197-2-alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The 'perf record' and 'perf stat' commands have supported the option
'-C/--cpus' to count or collect only on the list of CPUs provided.
Commit 1d3351e631fc34d7 ("perf tools: Enable on a list of CPUs for
hybrid") add it to be supported for hybrid. For hybrid support, it
checks the cpu list are available on hybrid PMU. But when we test only
uncore events(or events not in cpu_core and cpu_atom), there is a bug:
Before:
# perf stat -C0 -e uncore_clock/clockticks/ sleep 1
failed to use cpu list 0
In this case, for uncore event, its pmu_name is not cpu_core or
cpu_atom, so in evlist__fix_hybrid_cpus, perf_pmu__find_hybrid_pmu
should return NULL,both events_nr and unmatched_count should be 0 ,then
the cpu list check function evlist__fix_hybrid_cpus return -1 and the
error "failed to use cpu list 0" will happen. Bypass "events_nr=0" case
then the issue is fixed.
After:
# perf stat -C0 -e uncore_clock/clockticks/ sleep 1
Performance counter stats for 'CPU(s) 0':
195,476,873 uncore_clock/clockticks/
1.004518677 seconds time elapsed
When testing with at least one core event and uncore events, it has no
issue.
# perf stat -C0 -e cpu_core/cpu-cycles/,uncore_clock/clockticks/ sleep 1
Performance counter stats for 'CPU(s) 0':
5,993,774 cpu_core/cpu-cycles/
301,025,912 uncore_clock/clockticks/
1.003964934 seconds time elapsed
Fixes: 1d3351e631fc34d7 ("perf tools: Enable on a list of CPUs for hybrid")
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: alexander.shishkin@intel.com
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20220218093127.1844241-1-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Skip the Sigtrap test for arm + arm64, same as was done for s390 in
commit a840974e96fd ("perf test: Test 73 Sig_trap fails on s390"). For
this, reuse BP_SIGNAL_IS_SUPPORTED - meaning that the arch can use BP to
generate signals - instead of BP_ACCOUNT_IS_SUPPORTED, which is
appropriate.
As described by Will at [0], in the test we get stuck in a loop of
handling the HW breakpoint exception and never making progress. GDB
handles this by stepping over the faulting instruction, but with perf
the kernel is expected to handle the step (which it doesn't for arm).
Dmitry made an attempt to get this work, also mentioned in the same
thread as [0], which was appreciated. But the best thing to do is skip
the test for now.
[0] https://lore.kernel.org/linux-perf-users/20220118124343.GC98966@leoy-ThinkPad-X240s/T/#m13b06c39d2a5100d340f009435df6f4d8ee57b5a
Fixes: 5504f67944484495 ("perf test sigtrap: Add basic stress test for sigtrap handling")
Signed-off-by: John Garry <john.garry@huawei.com>
Tested-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Marco Elver <elver@google.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Marco Elver <elver@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux@armlinux.org.uk
Link: https://lore.kernel.org/r/1645176813-202756-1-git-send-email-john.garry@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Pull kvm fixes from Paolo Bonzini:
"x86 host:
- Expose KVM_CAP_ENABLE_CAP since it is supported
- Disable KVM_HC_CLOCK_PAIRING in TSC catchup mode
- Ensure async page fault token is nonzero
- Fix lockdep false negative
- Fix FPU migration regression from the AMX changes
x86 guest:
- Don't use PV TLB/IPI/yield on uniprocessor guests
PPC:
- reserve capability id (topic branch for ppc/kvm)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: nSVM: disallow userspace setting of MSR_AMD64_TSC_RATIO to non default value when tsc scaling disabled
KVM: x86/mmu: make apf token non-zero to fix bug
KVM: PPC: reserve capability 210 for KVM_CAP_PPC_AIL_MODE_3
x86/kvm: Don't use pv tlb/ipi/sched_yield if on 1 vCPU
x86/kvm: Fix compilation warning in non-x86_64 builds
x86/kvm/fpu: Remove kvm_vcpu_arch.guest_supported_xcr0
x86/kvm/fpu: Limit guest user_xfeatures to supported bits of XCR0
kvm: x86: Disable KVM_HC_CLOCK_PAIRING if tsc is in always catchup mode
KVM: Fix lockdep false negative during host resume
KVM: x86: Add KVM_CAP_ENABLE_CAP to x86
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Add KVM_CAP_PPC_AIL_MODE_3 to advertise the capability to set the AIL
resource mode to 3 with the H_SET_MODE hypercall. This capability
differs between processor types and KVM types (PR, HV, Nested HV), and
affects guest-visible behaviour.
QEMU will implement a cap-ail-mode-3 to control this behaviour[1], and
use the KVM CAP if available to determine KVM support[2].
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bpf and netfilter.
Current release - regressions:
- bpf: fix crash due to out of bounds access into reg2btf_ids
- mvpp2: always set port pcs ops, avoid null-deref
- eth: marvell: fix driver load from initrd
- eth: intel: revert "Fix reset bw limit when DCB enabled with 1 TC"
Current release - new code bugs:
- mptcp: fix race in overlapping signal events
Previous releases - regressions:
- xen-netback: revert hotplug-status changes causing devices to not
be configured
- dsa:
- avoid call to __dev_set_promiscuity() while rtnl_mutex isn't
held
- fix panic when removing unoffloaded port from bridge
- dsa: microchip: fix bridging with more than two member ports
Previous releases - always broken:
- bpf:
- fix crash due to incorrect copy_map_value when both spin lock
and timer are present in a single value
- fix a bpf_timer initialization issue with clang
- do not try bpf_msg_push_data with len 0
- add schedule points in batch ops
- nf_tables:
- unregister flowtable hooks on netns exit
- correct flow offload action array size
- fix a couple of memory leaks
- vsock: don't check owner in vhost_vsock_stop() while releasing
- gso: do not skip outer ip header in case of ipip and net_failover
- smc: use a mutex for locking "struct smc_pnettable"
- openvswitch: fix setting ipv6 fields causing hw csum failure
- mptcp: fix race in incoming ADD_ADDR option processing
- sysfs: add check for netdevice being present to speed_show
- sched: act_ct: fix flow table lookup after ct clear or switching
zones
- eth: intel: fixes for SR-IOV forwarding offloads
- eth: broadcom: fixes for selftests and error recovery
- eth: mellanox: flow steering and SR-IOV forwarding fixes
Misc:
- make __pskb_pull_tail() & pskb_carve_frag_list() drop_monitor
friends not report freed skbs as drops
- force inlining of checksum functions in net/checksum.h"
* tag 'net-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (85 commits)
net: mv643xx_eth: process retval from of_get_mac_address
ping: remove pr_err from ping_lookup
Revert "i40e: Fix reset bw limit when DCB enabled with 1 TC"
openvswitch: Fix setting ipv6 fields causing hw csum failure
ipv6: prevent a possible race condition with lifetimes
net/smc: Use a mutex for locking "struct smc_pnettable"
bnx2x: fix driver load from initrd
Revert "xen-netback: Check for hotplug-status existence before watching"
Revert "xen-netback: remove 'hotplug-status' once it has served its purpose"
net/mlx5e: Fix VF min/max rate parameters interchange mistake
net/mlx5e: Add missing increment of count
net/mlx5e: MPLSoUDP decap, fix check for unsupported matches
net/mlx5e: Fix MPLSoUDP encap to use MPLS action information
net/mlx5e: Add feature check for set fec counters
net/mlx5e: TC, Skip redundant ct clear actions
net/mlx5e: TC, Reject rules with forward and drop actions
net/mlx5e: TC, Reject rules with drop and modify hdr action
net/mlx5e: kTLS, Use CHECKSUM_UNNECESSARY for device-offloaded packets
net/mlx5e: Fix wrong return value on ioctl EEPROM query failure
net/mlx5: Fix possible deadlock on rule deletion
...
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Since commit 2843ff6f36db ("mptcp: remote addresses fullmesh"), an
MPTCP client can attempt creating multiple MPJ subflow simultaneusly.
In such scenario the server, when syncookies are enabled, could end-up
accepting incoming MPJ syn even above the configured subflow limit, as
the such limit can be enforced in a reliable way only after the subflow
creation. In case of syncookie, only after the 3rd ack reception.
As a consequence the related self-tests case sporadically fails, as it
verify that the server always accept the expected number of MPJ syn.
Address the issues relaxing the MPJ syn number constrain. Note that the
check on the accepted number of MPJ 3rd ack still remains intact.
Fixes: 2843ff6f36db ("mptcp: remote addresses fullmesh")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The in kernel MPTCP PM implementation can process a single
incoming add address option at any given time. In the
mentioned test the server can surpass such limit. Let the
setup cope with that allowing a faster add_addr retransmission.
Fixes: a88c9e496937 ("mptcp: do not block subflows creation on errors")
Fixes: f7efc7771eac ("mptcp: drop argument port from mptcp_pm_announce_addr")
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/254
Reported-and-tested-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The mentioned test has to wait for a subflow creation failure.
The current code looks for TCP sockets in TW state and sometimes
misses the relevant event. Switch to a more stable check, looking
for the associated mib counter.
Fixes: 46e967d187ed ("selftests: mptcp: add tests for subflow creation failure")
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/257
Reported-and-tested-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Instead of waiting for an arbitrary amount of time for the MPTCP
MP_CAPABLE handshake to complete, explicitly wait for the relevant
socket to enter into the established status.
Additionally let the data transfer application use the slowest
transfer mode available (-r), to cope with very slow host, or
high jitter caused by hosting VMs.
Fixes: df62f2ec3df6 ("selftests/mptcp: add diag interface tests")
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/258
Reported-and-tested-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Alexei Starovoitov says:
====================
pull-request: bpf 2022-02-17
We've added 8 non-merge commits during the last 7 day(s) which contain
a total of 8 files changed, 119 insertions(+), 15 deletions(-).
The main changes are:
1) Add schedule points in map batch ops, from Eric.
2) Fix bpf_msg_push_data with len 0, from Felix.
3) Fix crash due to incorrect copy_map_value, from Kumar.
4) Fix crash due to out of bounds access into reg2btf_ids, from Kumar.
5) Fix a bpf_timer initialization issue with clang, from Yonghong.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf: Add schedule points in batch ops
bpf: Fix crash due to out of bounds access into reg2btf_ids.
selftests: bpf: Check bpf_msg_push_data return value
bpf: Fix a bpf_timer initialization issue
bpf: Emit bpf_timer in vmlinux BTF
selftests/bpf: Add test for bpf_timer overwriting crash
bpf: Fix crash due to incorrect copy_map_value
bpf: Do not try bpf_msg_push_data with len 0
====================
Link: https://lore.kernel.org/r/20220217190000.37925-1-alexei.starovoitov@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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bpf_msg_push_data may return a non-zero value to indicate an error. The
return value should be checked to prevent undetected errors.
To indicate an error, the BPF programs now perform a different action
than their intended one to make the userspace test program notice the
error, i.e., the programs supposed to pass/redirect drop, the program
supposed to drop passes.
Fixes: 84fbfe026acaa ("bpf: test_sockmap add options to use msg_push_data")
Signed-off-by: Felix Maurer <fmaurer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/89f767bb44005d6b4dd1f42038c438f76b3ebfad.1644601294.git.fmaurer@redhat.com
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Add a test that validates that timer value is not overwritten when doing
a copy_map_value call in the kernel. Without the prior fix, this test
triggers a crash.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220209070324.1093182-3-memxor@gmail.com
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git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fixes from Vlastimil Babka:
- Build fix (workaround) for clang.
- Fix a /proc/kcore based slabinfo script broken by struct slab changes
in 5.17-rc1.
* tag 'slab-for-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
tools/cgroup/slabinfo: update to work with struct slab
slab: remove __alloc_size attribute from __kmalloc_track_caller
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After the introduction of the dedicated struct slab to describe slab
pages by commit d122019bf061 ("mm: Split slab into its own type") and
the following removal of the corresponding struct page's fields by
commit 07f910f9b729 ("mm: Remove slab from struct page") the
memcg_slabinfo tool broke. An attempt to run it produces a trace like
this:
Traceback (most recent call last):
File "/usr/bin/drgn", line 33, in <module>
sys.exit(load_entry_point('drgn==0.0.16', 'console_scripts', 'drgn')())
File "/usr/lib64/python3.9/site-packages/drgn/internal/cli.py", line 133, in main
runpy.run_path(args.script[0], init_globals=init_globals, run_name="__main__")
File "/usr/lib64/python3.9/runpy.py", line 268, in run_path
return _run_module_code(code, init_globals, run_name,
File "/usr/lib64/python3.9/runpy.py", line 97, in _run_module_code
_run_code(code, mod_globals, init_globals,
File "/usr/lib64/python3.9/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "memcg_slabinfo.py", line 226, in <module>
main()
File "memcg_slabinfo.py", line 199, in main
cache = page.slab_cache
AttributeError: 'struct page' has no member 'slab_cache'
The problem can be fixed by explicitly casting struct page * to struct
slab * for slab pages. The tools works as expected with this fix, e.g.:
cred_jar 776 776 192 21 1 : tunables 0 0 0 : slabdata 547 547 0
kmalloc-cg-32 6 6 32 128 1 : tunables 0 0 0 : slabdata 9 9 0
files_cache 3 3 832 39 8 : tunables 0 0 0 : slabdata 8 8 0
kmalloc-cg-512 1 1 512 32 4 : tunables 0 0 0 : slabdata 10 10 0
task_struct 10 10 6720 4 8 : tunables 0 0 0 : slabdata 63 63 0
mm_struct 3 3 1664 19 8 : tunables 0 0 0 : slabdata 9 9 0
kmalloc-cg-16 1 1 16 256 1 : tunables 0 0 0 : slabdata 8 8 0
pde_opener 1 1 40 102 1 : tunables 0 0 0 : slabdata 8 8 0
anon_vma_chain 375 375 64 64 1 : tunables 0 0 0 : slabdata 81 81 0
radix_tree_node 3 3 584 28 4 : tunables 0 0 0 : slabdata 419 419 0
dentry 98 98 312 26 2 : tunables 0 0 0 : slabdata 1420 1420 0
btrfs_inode 3 3 2368 13 8 : tunables 0 0 0 : slabdata 730 730 0
signal_cache 3 3 1600 20 8 : tunables 0 0 0 : slabdata 17 17 0
sighand_cache 3 3 2240 14 8 : tunables 0 0 0 : slabdata 20 20 0
filp 90 90 512 32 4 : tunables 0 0 0 : slabdata 95 95 0
anon_vma 214 214 200 20 1 : tunables 0 0 0 : slabdata 162 162 0
kmalloc-cg-1k 1 1 1024 32 8 : tunables 0 0 0 : slabdata 22 22 0
pid 10 10 256 32 2 : tunables 0 0 0 : slabdata 14 14 0
kmalloc-cg-64 2 2 64 64 1 : tunables 0 0 0 : slabdata 8 8 0
kmalloc-cg-96 3 3 96 42 1 : tunables 0 0 0 : slabdata 8 8 0
sock_inode_cache 5 5 1408 23 8 : tunables 0 0 0 : slabdata 29 29 0
UNIX 7 7 1920 17 8 : tunables 0 0 0 : slabdata 21 21 0
inode_cache 36 36 1152 28 8 : tunables 0 0 0 : slabdata 680 680 0
proc_inode_cache 26 26 1224 26 8 : tunables 0 0 0 : slabdata 64 64 0
kmalloc-cg-2k 2 2 2048 16 8 : tunables 0 0 0 : slabdata 9 9 0
v2: change naming and count_partial()/count_free()/for_each_slab()
signatures to work with slabs, suggested by Matthew Wilcox
Fixes: 07f910f9b729 ("mm: Remove slab from struct page")
Reported-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Roman Gushchin <guro@fb.com>
Tested-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Link: https://lore.kernel.org/linux-patches/Yg2cKKnIboNu7j+p@carbon.DHCP.thefacebook.com/
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git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull mount_setattr test/doc fixes from Christian Brauner:
"This contains a fix for one of the selftests for the mount_setattr
syscall to create idmapped mounts, an entry for idmapped mounts for
maintainers, and missing kernel documentation for the helper we split
out some time ago to get and yield write access to a mount when
changing mount properties"
* tag 'fs.mount_setattr.v5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
fs: add kernel doc for mnt_{hold,unhold}_writers()
MAINTAINERS: add entry for idmapped mounts
tests: fix idmapped mount_setattr test
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The test treated zero as a successful run when it really should treat
non-zero as a successful run. A mount's idmapping can't change once it
has been attached to the filesystem.
Link: https://lore.kernel.org/r/20220203131411.3093040-2-brauner@kernel.org
Fixes: 01eadc8dd96d ("tests: add mount_setattr() selftests")
Cc: Seth Forshee <seth.forshee@digitalocean.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: linux-fsdevel@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
"Fixes to ftrace, exec, and seccomp tests build, run-time and install
bugs. These bugs are in the way of running the tests"
* tag 'linux-kselftest-fixes-5.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/ftrace: Do not trace do_softirq because of PREEMPT_RT
selftests/seccomp: Fix seccomp failure by adding missing headers
selftests/exec: Add non-regular to TEST_GEN_PROGS
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The PREEMPT_RT patchset does not use do_softirq() function thus trying
to filter for do_softirq fails for such kernel:
echo do_softirq
ftracetest: 81: echo: echo: I/O error
Choose some other visible function for the test. The function does not
have to be actually executed during the test, because it is only testing
filter API interface.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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seccomp_bpf failed on tests 47 global.user_notification_filter_empty
and 48 global.user_notification_filter_empty_threaded when it's
tested on updated kernel but with old kernel headers. Because old
kernel headers don't have definition of macro __NR_clone3 which is
required for these two tests. Since under selftests/, we can install
headers once for all tests (the default INSTALL_HDR_PATH is
usr/include), fix it by adding usr/include to the list of directories
to be searched. Use "-isystem" to indicate it's a system directory as
the real kernel headers directories are.
Signed-off-by: Sherry Yang <sherry.yang@oracle.com>
Tested-by: Sherry Yang <sherry.yang@oracle.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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non-regular file needs to be compiled and then copied to the output
directory. Remove it from TEST_PROGS and add it to TEST_GEN_PROGS. This
removes error thrown by rsync when non-regular object isn't found:
rsync: [sender] link_stat "/linux/tools/testing/selftests/exec/non-regular" failed: No such file or directory (2)
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1333) [sender=3.2.3]
Fixes: 0f71241a8e32 ("selftests/exec: add file type errno tests")
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from wireless and netfilter.
Current release - regressions:
- dsa: lantiq_gswip: fix use after free in gswip_remove()
- smc: avoid overwriting the copies of clcsock callback functions
Current release - new code bugs:
- iwlwifi:
- fix use-after-free when no FW is present
- mei: fix the pskb_may_pull check in ipv4
- mei: retry mapping the shared area
- mvm: don't feed the hardware RFKILL into iwlmei
Previous releases - regressions:
- ipv6: mcast: use rcu-safe version of ipv6_get_lladdr()
- tipc: fix wrong publisher node address in link publications
- iwlwifi: mvm: don't send SAR GEO command for 3160 devices, avoid FW
assertion
- bgmac: make idm and nicpm resource optional again
- atl1c: fix tx timeout after link flap
Previous releases - always broken:
- vsock: remove vsock from connected table when connect is
interrupted by a signal
- ping: change destination interface checks to match raw sockets
- crypto: af_alg - get rid of alg_memory_allocated to avoid confusing
semantics (and null-deref) after SO_RESERVE_MEM was added
- ipv6: make exclusive flowlabel checks per-netns
- bonding: force carrier update when releasing slave
- sched: limit TC_ACT_REPEAT loops
- bridge: multicast: notify switchdev driver whenever MC processing
gets disabled because of max entries reached
- wifi: brcmfmac: fix crash in brcm_alt_fw_path when WLAN not found
- iwlwifi: fix locking when "HW not ready"
- phy: mediatek: remove PHY mode check on MT7531
- dsa: mv88e6xxx: flush switchdev FDB workqueue before removing VLAN
- dsa: lan9303:
- fix polarity of reset during probe
- fix accelerated VLAN handling"
* tag 'net-5.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (65 commits)
bonding: force carrier update when releasing slave
nfp: flower: netdev offload check for ip6gretap
ipv6: fix data-race in fib6_info_hw_flags_set / fib6_purge_rt
ipv4: fix data races in fib_alias_hw_flags_set
net: dsa: lan9303: add VLAN IDs to master device
net: dsa: lan9303: handle hwaccel VLAN tags
vsock: remove vsock from connected table when connect is interrupted by a signal
Revert "net: ethernet: bgmac: Use devm_platform_ioremap_resource_byname"
ping: fix the dif and sdif check in ping_lookup
net: usb: cdc_mbim: avoid altsetting toggling for Telit FN990
net: sched: limit TC_ACT_REPEAT loops
tipc: fix wrong notification node addresses
net: dsa: lantiq_gswip: fix use after free in gswip_remove()
ipv6: per-netns exclusive flowlabel checks
net: bridge: multicast: notify switchdev driver whenever MC processing gets disabled
CDC-NCM: avoid overflow in sanity checking
mctp: fix use after free
net: mscc: ocelot: fix use-after-free in ocelot_vlan_del()
bonding: fix data-races around agg_select_timer
dpaa2-eth: Initialize mutex used in one step timestamping path
...
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Add selftest for nft_synproxy, from Florian Westphal.
2) xt_socket destroy path incorrectly disables IPv4 defrag for
IPv6 traffic (typo), from Eric Dumazet.
3) Fix exit value selftest nft_concat_range.sh, from Hangbin Liu.
4) nft_synproxy disables the IPv4 hooks if the IPv6 hooks fail
to be registered.
5) disable rp_filter on router in selftest nft_fib.sh, also
from Hangbin Liu.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Some distros may enable rp_filter by default. After ns1 change addr to
10.0.2.99 and set default router to 10.0.2.1, while the connected router
address is still 10.0.1.1. The router will not reply the arp request
from ns1. Fix it by setting the router's veth0 rp_filter to 0.
Before the fix:
# ./nft_fib.sh
PASS: fib expression did not cause unwanted packet drops
Netns nsrouter-HQkDORO2 fib counter doesn't match expected packet count of 1 for 1.1.1.1
table inet filter {
chain prerouting {
type filter hook prerouting priority filter; policy accept;
ip daddr 1.1.1.1 fib saddr . iif oif missing counter packets 0 bytes 0 drop
ip6 daddr 1c3::c01d fib saddr . iif oif missing counter packets 0 bytes 0 drop
}
}
After the fix:
# ./nft_fib.sh
PASS: fib expression did not cause unwanted packet drops
PASS: fib expression did drop packets for 1.1.1.1
PASS: fib expression did drop packets for 1c3::c01d
Fixes: 82944421243e ("selftests: netfilter: add fib test case")
Signed-off-by: Yi Chen <yiche@redhat.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Otherwise, this test does not find the sysctl entry in place:
sysctl: cannot stat /proc/sys/net/netfilter/nf_conntrack_tcp_loose: No such file or directory
iperf3: error - unable to send control message: Bad file descriptor
FAIL: iperf3 returned an error
Fixes: 7152303cbec4 ("selftests: netfilter: add synproxy test")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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When the nft_concat_range test failed, it exit 1 in the code
specifically.
But when part of, or all of the test passed, it will failed the
[ ${passed} -eq 0 ] check and thus exit with 1, which is the same
exit value with failure result. Fix it by exit 0 when passed is not 0.
Fixes: 611973c1e06f ("selftests: netfilter: Introduce tests for sets with range concatenation")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Simple test for synproxy feature, iperf3 should be intercepted
by synproxy netns, but connection should still succeed.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix corrupt inject files when only last branch option is enabled with
ARM CoreSight ETM
- Fix use-after-free for realloc(..., 0) in libsubcmd, found by gcc 12
- Defer freeing string after possible strlen() on it in the BPF loader,
found by gcc 12
- Avoid early exit in 'perf trace' due SIGCHLD from non-workload
processes
- Fix arm64 perf_event_attr 'perf test's wrt --call-graph
initialization
- Fix libperf 32-bit build for 'perf test' wrt uint64_t printf
- Fix perf_cpu_map__for_each_cpu macro in libperf, providing access to
the CPU iterator
- Sync linux/perf_event.h UAPI with the kernel sources
- Update Jiri Olsa's email address in MAINTAINERS
* tag 'perf-tools-fixes-for-v5.17-2022-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf bpf: Defer freeing string after possible strlen() on it
perf test: Fix arm64 perf_event_attr tests wrt --call-graph initialization
libsubcmd: Fix use-after-free for realloc(..., 0)
libperf: Fix perf_cpu_map__for_each_cpu macro
perf cs-etm: Fix corrupt inject files when only last branch option is enabled
perf cs-etm: No-op refactor of synth opt usage
libperf: Fix 32-bit build for tests uint64_t printf
tools headers UAPI: Sync linux/perf_event.h with the kernel sources
perf trace: Avoid early exit due SIGCHLD from non-workload processes
MAINTAINERS: Update Jiri's email address
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This was detected by the gcc in Fedora Rawhide's gcc:
50 11.01 fedora:rawhide : FAIL gcc version 12.0.1 20220205 (Red Hat 12.0.1-0) (GCC)
inlined from 'bpf__config_obj' at util/bpf-loader.c:1242:9:
util/bpf-loader.c:1225:34: error: pointer 'map_opt' may be used after 'free' [-Werror=use-after-free]
1225 | *key_scan_pos += strlen(map_opt);
| ^~~~~~~~~~~~~~~
util/bpf-loader.c:1223:9: note: call to 'free' here
1223 | free(map_name);
| ^~~~~~~~~~~~~~
cc1: all warnings being treated as errors
So do the calculations on the pointer before freeing it.
Fixes: 04f9bf2bac72480c ("perf bpf-loader: Add missing '*' for key_scan_pos")
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang ShaoBo <bobo.shaobowang@huawei.com>
Link: https://lore.kernel.org/lkml/Yg1VtQxKrPpS3uNA@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The struct perf_event_attr is initialised differently in Arm64 when
recording in call-graph fp mode, so update the relevant tests, and add
two extra arm64-only tests.
Before:
$ perf test 17 -v
17: Setup struct perf_event_attr
[...]
running './tests/attr/test-record-graph-default'
expected sample_type=295, got 4391
expected sample_regs_user=0, got 1073741824
FAILED './tests/attr/test-record-graph-default' - match failure
test child finished with -1
---- end ----
After:
[...]
running './tests/attr/test-record-graph-default-aarch64'
test limitation 'aarch64'
running './tests/attr/test-record-graph-fp-aarch64'
test limitation 'aarch64'
running './tests/attr/test-record-graph-default'
test limitation '!aarch64'
excluded architecture list ['aarch64']
skipped [aarch64] './tests/attr/test-record-graph-default'
running './tests/attr/test-record-graph-fp'
test limitation '!aarch64'
excluded architecture list ['aarch64']
skipped [aarch64] './tests/attr/test-record-graph-fp'
[...]
Fixes: 7248e308a5758761 ("perf tools: Record ARM64 LR register automatically")
Signed-off-by: German Gomez <german.gomez@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Truong <alexandre.truong@arm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Link: http://lore.kernel.org/lkml/20220125104435.2737-1-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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GCC 12 correctly reports a potential use-after-free condition in the
xrealloc helper. Fix the warning by avoiding an implicit "free(ptr)"
when size == 0:
In file included from help.c:12:
In function 'xrealloc',
inlined from 'add_cmdname' at help.c:24:2: subcmd-util.h:56:23: error: pointer may be used after 'realloc' [-Werror=use-after-free]
56 | ret = realloc(ptr, size);
| ^~~~~~~~~~~~~~~~~~
subcmd-util.h:52:21: note: call to 'realloc' here
52 | void *ret = realloc(ptr, size);
| ^~~~~~~~~~~~~~~~~~
subcmd-util.h:58:31: error: pointer may be used after 'realloc' [-Werror=use-after-free]
58 | ret = realloc(ptr, 1);
| ^~~~~~~~~~~~~~~
subcmd-util.h:52:21: note: call to 'realloc' here
52 | void *ret = realloc(ptr, size);
| ^~~~~~~~~~~~~~~~~~
Fixes: 2f4ce5ec1d447beb ("perf tools: Finalize subcmd independence")
Reported-by: Valdis Klētnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Kees Kook <keescook@chromium.org>
Tested-by: Valdis Klētnieks <valdis.kletnieks@vt.edu>
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: linux-hardening@vger.kernel.org
Cc: Valdis Klētnieks <valdis.kletnieks@vt.edu>
Link: http://lore.kernel.org/lkml/20220213182443.4037039-1-keescook@chromium.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Tzvetomir Stoyanov reported an issue with using macro
perf_cpu_map__for_each_cpu using private perf_cpu object.
The issue is caused by recent change that wrapped cpu in struct perf_cpu
to distinguish it from cpu indexes. We need to make struct perf_cpu
public.
Add a simple test for using the perf_cpu_map__for_each_cpu macro.
Fixes: 6d18804b963b78dc ("perf cpumap: Give CPUs their own type")
Reported-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20220215153713.31395-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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'perf inject' with Coresight data generates files that cannot be opened
when only the last branch option is specified:
perf inject -i perf.data --itrace=l -o inject.data
perf script -i inject.data
0x33faa8 [0x8]: failed to process type: 9 [Bad address]
This is because cs_etm__synth_instruction_sample() is called even when
the sample type for instructions hasn't been setup. Last branch records
are attached to instruction samples so it doesn't make sense to generate
them when --itrace=i isn't specified anyway.
This change disables all calls of cs_etm__synth_instruction_sample()
unless --itrace=i is specified, resulting in a file with no samples if
only --itrace=l is provided, rather than a bad file.
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220210200620.1227232-2-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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sample_branches and sample_instructions are already saved in the
synth_opts struct. Other usages like synth_opts.last_branch don't save a
value, so make this more consistent by always going through synth_opts
and not saving duplicate values.
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220210200620.1227232-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Commit a7f3713f6bf207e6 ("libperf tests: Add test_stat_multiplexing test")
added printf's of 64-bit ints using %lu which doesn't work on 32-bit
builds:
tests/test-evlist.c:529:29: error: format ‘%lu’ expects argument of type \
‘long unsigned int’, but argument 4 has type ‘uint64_t’ {aka ‘long long unsigned int’} [-Werror=format=]
Use PRIu64 instead which works on both 32-bit and 64-bit systems.
Fixes: a7f3713f6bf207e6 ("libperf tests: Add test_stat_multiplexing test")
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
Link: https://lore.kernel.org/r/20220201213903.699656-1-robh@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick the trivial change in:
ddecd22878601a60 ("perf: uapi: Document perf_event_attr::sig_data truncation on 32 bit architectures")
Just adds a comment.
This silences this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h'
diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h
Cc: Marco Elver <elver@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/lkml/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The function trace__symbols_init() runs "perf-read-vdso32" and that ends up
with a SIGCHLD delivered to 'perf'. And this SIGCHLD make perf exit early.
'perf trace' should exit only if the SIGCHLD is from our workload process.
So let's use sigaction() instead of signal() to match such condition.
Committer notes:
Use memset to zero the 'struct sigaction' variable as the '= { 0 }'
method isn't accepted in many compiler versions, e.g.:
4 34.02 alpine:3.6 : FAIL clang version 4.0.0 (tags/RELEASE_400/final)
builtin-trace.c:4897:35: error: suggest braces around initialization of subobject [-Werror,-Wmissing-braces]
struct sigaction sigchld_act = { 0 };
^
{}
builtin-trace.c:4897:37: error: missing field 'sa_mask' initializer [-Werror,-Wmissing-field-initializers]
struct sigaction sigchld_act = { 0 };
^
2 errors generated.
6 32.60 alpine:3.8 : FAIL gcc version 6.4.0 (Alpine 6.4.0)
builtin-trace.c:4897:35: error: suggest braces around initialization of subobject [-Werror,-Wmissing-braces]
struct sigaction sigchld_act = { 0 };
^
{}
builtin-trace.c:4897:37: error: missing field 'sa_mask' initializer [-Werror,-Wmissing-field-initializers]
struct sigaction sigchld_act = { 0 };
^
2 errors generated.
7 34.82 alpine:3.9 : FAIL gcc version 8.3.0 (Alpine 8.3.0)
builtin-trace.c:4897:35: error: suggest braces around initialization of subobject [-Werror,-Wmissing-braces]
struct sigaction sigchld_act = { 0 };
^
{}
builtin-trace.c:4897:37: error: missing field 'sa_mask' initializer [-Werror,-Wmissing-field-initializers]
struct sigaction sigchld_act = { 0 };
^
2 errors generated.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220208140725.3947-1-changbin.du@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Pull kvm fixes from Paolo Bonzini:
"ARM:
- Read HW interrupt pending state from the HW
x86:
- Don't truncate the performance event mask on AMD
- Fix Xen runstate updates to be atomic when preempting vCPU
- Fix for AMD AVIC interrupt injection race
- Several other AMD fixes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86/pmu: Use AMD64_RAW_EVENT_MASK for PERF_TYPE_RAW
KVM: x86/pmu: Don't truncate the PerfEvtSeln MSR when creating a perf event
KVM: SVM: fix race between interrupt delivery and AVIC inhibition
KVM: SVM: set IRR in svm_deliver_interrupt
KVM: SVM: extract avic_ring_doorbell
selftests: kvm: Remove absent target file
KVM: arm64: vgic: Read HW interrupt pending state from the HW
KVM: x86/xen: Fix runstate updates to be atomic when preempting vCPU
KVM: x86: SVM: move avic definitions from AMD's spec to svm.h
KVM: x86: lapic: don't touch irr_pending in kvm_apic_update_apicv when inhibiting it
KVM: x86: nSVM: deal with L1 hypervisor that intercepts interrupts but lets L2 control them
KVM: x86: nSVM: expose clean bit support to the guest
KVM: x86: nSVM/nVMX: set nested_run_pending on VM entry which is a result of RSM
KVM: x86: nSVM: mark vmcb01 as dirty when restoring SMM saved state
KVM: x86: nSVM: fix potential NULL derefernce on nested migration
KVM: x86: SVM: don't passthrough SMAP/SMEP/PKE bits in !NPT && !gCR0.PG case
Revert "svm: Add warning message for AVIC IPI invalid target"
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There is no vmx_pi_mmio_test file. Remove it to get rid of error while
creation of selftest archive:
rsync: [sender] link_stat "/kselftest/kvm/x86_64/vmx_pi_mmio_test" failed: No such file or directory (2)
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1333) [sender=3.2.3]
Fixes: 6a58150859fd ("selftest: KVM: Add intra host migration tests")
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Message-Id: <20220210172352.1317554-1-usama.anjum@collabora.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fixes to the RTLA tooling
- A fix to a tp_printk overriding tp_printk_stop_on_boot on the
command line
* tag 'trace-v5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Fix tp_printk option related with tp_printk_stop_on_boot
MAINTAINERS: Add RTLA entry
rtla: Fix segmentation fault when failing to enable -t
rtla/trace: Error message fixup
rtla/utils: Fix session duration parsing
rtla: Follow kernel version
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rtla osnoise and timerlat are causing a segmentation fault when running
with the --trace option on a kernel that does not support multiple
instances. For example:
[root@f34 rtla]# rtla osnoise top -t
failed to enable the tracer osnoise
Could not enable osnoiser tracer for tracing
Failed to enable the trace instance
Segmentation fault (core dumped)
This error happens because the exit code of the tools is trying
to destroy the trace instance that failed to be created.
Make osnoise_destroy_tool() aware of possible NULL osnoise_tool *,
and do not attempt to destroy it. This also simplifies the exit code.
Link: https://lkml.kernel.org/r/5660a2b6bf66c2655842360f2d7f6b48db5dba23.1644327249.git.bristot@kernel.org
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Fixes: 1eceb2fc2ca5 ("rtla/osnoise: Add osnoise top mode")
Fixes: 829a6c0b5698 ("rtla/osnoise: Add the hist mode")
Fixes: a828cd18bc4a ("rtla: Add timerlat tool and timelart top mode")
Fixes: 1eeb6328e8b3 ("rtla/timerlat: Add timerlat hist mode")
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Use capital and change "tracer %s" to "%s tracer".
No functional change.
Link: https://lkml.kernel.org/r/361697d27431afefa64c67c323564205385c418d.1643990447.git.bristot@kernel.org
Fixes: b1696371d865 ("rtla: Helper functions for rtla")
Cc: Daniel Bristot de Oliveira <bristot@kernel.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-trace-devel@vger.kernel.org
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Use gmtime to format the duration time. This avoids problems when the
system uses local time different of Pisa's Local Time.
Link: https://lkml.kernel.org/r/a2f0a37bc006c2561bb8ecd871cd70532b4a9f2d.1643990447.git.bristot@kernel.org
Fixes: b1696371d865 ("rtla: Helper functions for rtla")
Cc: Daniel Bristot de Oliveira <bristot@kernel.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-trace-devel@vger.kernel.org
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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To avoid having commits with new version, it is just easier to follow
kernel version.
Link: https://lkml.kernel.org/r/9c2df0d1de65cea96c7d731fe64781a2bb90c5b3.1643990447.git.bristot@kernel.org
Cc: Daniel Bristot de Oliveira <bristot@kernel.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-trace-devel@vger.kernel.org
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter and can.
Current release - new code bugs:
- sparx5: fix get_stat64 out-of-bound access and crash
- smc: fix netdev ref tracker misuse
Previous releases - regressions:
- eth: ixgbevf: require large buffers for build_skb on 82599VF, avoid
overflows
- eth: ocelot: fix all IP traffic getting trapped to CPU with PTP
over IP
- bonding: fix rare link activation misses in 802.3ad mode
Previous releases - always broken:
- tcp: fix tcp sock mem accounting in zero-copy corner cases
- remove the cached dst when uncloning an skb dst and its metadata,
since we only have one ref it'd lead to an UaF
- netfilter:
- conntrack: don't refresh sctp entries in closed state
- conntrack: re-init state for retransmitted syn-ack, avoid
connection establishment getting stuck with strange stacks
- ctnetlink: disable helper autoassign, avoid it getting lost
- nft_payload: don't allow transport header access for fragments
- dsa: fix use of devres for mdio throughout drivers
- eth: amd-xgbe: disable interrupts during pci removal
- eth: dpaa2-eth: unregister netdev before disconnecting the PHY
- eth: ice: fix IPIP and SIT TSO offload"
* tag 'net-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (53 commits)
net: dsa: mv88e6xxx: fix use-after-free in mv88e6xxx_mdios_unregister
net: mscc: ocelot: fix mutex lock error during ethtool stats read
ice: Avoid RTNL lock when re-creating auxiliary device
ice: Fix KASAN error in LAG NETDEV_UNREGISTER handler
ice: fix IPIP and SIT TSO offload
ice: fix an error code in ice_cfg_phy_fec()
net: mpls: Fix GCC 12 warning
dpaa2-eth: unregister the netdev before disconnecting from the PHY
skbuff: cleanup double word in comment
net: macb: Align the dma and coherent dma masks
mptcp: netlink: process IPv6 addrs in creating listening sockets
selftests: mptcp: add missing join check
net: usb: qmi_wwan: Add support for Dell DW5829e
vlan: move dev_put into vlan_dev_uninit
vlan: introduce vlan_dev_free_egress_priority
ax25: fix UAF bugs of net_device caused by rebinding operation
net: dsa: fix panic when DSA master device unbinds on shutdown
net: amd-xgbe: disable interrupts during pci removal
tipc: rate limit warning for received illegal binding update
net: mdio: aspeed: Add missing MODULE_DEVICE_TABLE
...
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This function also writes the name of the test with its ID, making clear
a new test has been executed.
Without that, the ADD_ADDR results from this test was appended at the
end of the previous test causing confusions. Especially when the second
test was failing, we had:
17 signal invalid addresses syn[ ok ] - synack[ ok ] - ack[ ok ]
add[ ok ] - echo [ ok ]
add[fail] got 2 ADD_ADDR[s] expected 3
In fact, this 17th test was OK but not the 18th one.
Now we have:
17 signal invalid addresses syn[ ok ] - synack[ ok ] - ack[ ok ]
add[ ok ] - echo [ ok ]
18 signal addresses race test syn[fail] got 2 JOIN[s] syn expected 3
- synack[fail] got 2 JOIN[s] synack expected
- ack[fail] got 2 JOIN[s] ack expected 3
add[fail] got 2 ADD_ADDR[s] expected 3
Fixes: 33c563ad28e3 ("selftests: mptcp: add_addr and echo race test")
Reported-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
"Build and run-time fixes to pidfd, clone3, and ir tests"
* tag 'linux-kselftest-fixes-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/ir: fix build with ancient kernel headers
selftests: fixup build warnings in pidfd / clone3 tests
pidfd: fix test failure due to stack overflow on some arches
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