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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-01-05 18:16:18 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-01-05 18:16:18 +0100 |
| commit | a65981109f294ba7e64b33ad3b4575a4636fce66 (patch) | |
| tree | 1061a49f11544e18775630938a8bc53920fa0421 /Documentation/sysctl/kernel.txt | |
| parent | ia64: fix compile without swiotlb (diff) | |
| parent | mm/page_io.c: fix polled swap page in (diff) | |
| download | linux-a65981109f294ba7e64b33ad3b4575a4636fce66.tar.xz linux-a65981109f294ba7e64b33ad3b4575a4636fce66.zip | |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:
- procfs updates
- various misc bits
- lib/ updates
- epoll updates
- autofs
- fatfs
- a few more MM bits
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (58 commits)
mm/page_io.c: fix polled swap page in
checkpatch: add Co-developed-by to signature tags
docs: fix Co-Developed-by docs
drivers/base/platform.c: kmemleak ignore a known leak
fs: don't open code lru_to_page()
fs/: remove caller signal_pending branch predictions
mm/: remove caller signal_pending branch predictions
arch/arc/mm/fault.c: remove caller signal_pending_branch predictions
kernel/sched/: remove caller signal_pending branch predictions
kernel/locking/mutex.c: remove caller signal_pending branch predictions
mm: select HAVE_MOVE_PMD on x86 for faster mremap
mm: speed up mremap by 20x on large regions
mm: treewide: remove unused address argument from pte_alloc functions
initramfs: cleanup incomplete rootfs
scripts/gdb: fix lx-version string output
kernel/kcov.c: mark write_comp_data() as notrace
kernel/sysctl: add panic_print into sysctl
panic: add options to print system info when panic happens
bfs: extra sanity checking and static inode bitmap
exec: separate MM_ANONPAGES and RLIMIT_STACK accounting
...
Diffstat (limited to 'Documentation/sysctl/kernel.txt')
| -rw-r--r-- | Documentation/sysctl/kernel.txt | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index 1b8775298cf7..c0527d8a468a 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -60,6 +60,7 @@ show up in /proc/sys/kernel: - panic_on_stackoverflow - panic_on_unrecovered_nmi - panic_on_warn +- panic_print - panic_on_rcu_stall - perf_cpu_time_max_percent - perf_event_paranoid @@ -654,6 +655,22 @@ a kernel rebuild when attempting to kdump at the location of a WARN(). ============================================================== +panic_print: + +Bitmask for printing system info when panic happens. User can chose +combination of the following bits: + +bit 0: print all tasks info +bit 1: print system memory info +bit 2: print timer info +bit 3: print locks info if CONFIG_LOCKDEP is on +bit 4: print ftrace buffer + +So for example to print tasks and memory info on panic, user can: + echo 3 > /proc/sys/kernel/panic_print + +============================================================== + panic_on_rcu_stall: When set to 1, calls panic() after RCU stall detection messages. This |