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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-06-16 01:52:35 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-06-16 01:52:35 +0200 |
| commit | a95f9b6e092ed862278e08266207c7ab231076b4 (patch) | |
| tree | c5daf86ce89b3033c051dfc7b2955981d6add16d /lib | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending (diff) | |
| parent | Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/pa... (diff) | |
| download | linux-a95f9b6e092ed862278e08266207c7ab231076b4.tar.xz linux-a95f9b6e092ed862278e08266207c7ab231076b4.zip | |
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core updates (RCU and locking) from Ingo Molnar:
"Most of the diffstat comes from the RCU slow boot regression fixes,
but there's also a debuggability improvements/fixes."
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
memblock: Document memblock_is_region_{memory,reserved}()
rcu: Precompute RCU_FAST_NO_HZ timer offsets
rcu: Move RCU_FAST_NO_HZ per-CPU variables to rcu_dynticks structure
rcu: Update RCU_FAST_NO_HZ tracing for lazy callbacks
rcu: RCU_FAST_NO_HZ detection of callback adoption
spinlock: Indicate that a lockup is only suspected
kdump: Execute kmsg_dump(KMSG_DUMP_PANIC) after smp_send_stop()
panic: Make panic_on_oops configurable
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 20 | ||||
| -rw-r--r-- | lib/spinlock_debug.c | 2 |
2 files changed, 21 insertions, 1 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index a42d3ae39648..ff5bdee4716d 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -241,6 +241,26 @@ config BOOTPARAM_SOFTLOCKUP_PANIC_VALUE default 0 if !BOOTPARAM_SOFTLOCKUP_PANIC default 1 if BOOTPARAM_SOFTLOCKUP_PANIC +config PANIC_ON_OOPS + bool "Panic on Oops" if EXPERT + default n + help + Say Y here to enable the kernel to panic when it oopses. This + has the same effect as setting oops=panic on the kernel command + line. + + This feature is useful to ensure that the kernel does not do + anything erroneous after an oops which could result in data + corruption or other issues. + + Say N if unsure. + +config PANIC_ON_OOPS_VALUE + int + range 0 1 + default 0 if !PANIC_ON_OOPS + default 1 if PANIC_ON_OOPS + config DETECT_HUNG_TASK bool "Detect Hung Tasks" depends on DEBUG_KERNEL diff --git a/lib/spinlock_debug.c b/lib/spinlock_debug.c index d0ec4f3d1593..e91fbc23fff1 100644 --- a/lib/spinlock_debug.c +++ b/lib/spinlock_debug.c @@ -118,7 +118,7 @@ static void __spin_lock_debug(raw_spinlock_t *lock) /* lockup suspected: */ if (print_once) { print_once = 0; - spin_dump(lock, "lockup"); + spin_dump(lock, "lockup suspected"); #ifdef CONFIG_SMP trigger_all_cpu_backtrace(); #endif |