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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-19 17:29:29 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-19 17:29:29 -0700 |
| commit | 6595b4a940c4c447b619ab5268378ed03e632694 (patch) | |
| tree | e604f97bf8e947fca3dca4c5101d6ffdc432466d /lib | |
| parent | cbdad8dc18b8ddd6c8b48c4ef26d46f00b5af923 (diff) | |
| parent | 5db1256a5131d3b133946fa02ac9770a784e6eb2 (diff) | |
| download | lwn-6595b4a940c4c447b619ab5268378ed03e632694.tar.gz lwn-6595b4a940c4c447b619ab5268378ed03e632694.zip | |
Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
seqlock: Don't smp_rmb in seqlock reader spin loop
watchdog, hung_task_timeout: Add Kconfig configurable default
lockdep: Remove cmpxchg to update nr_chain_hlocks
lockdep: Print a nicer description for simple irq lock inversions
lockdep: Replace "Bad BFS generated tree" message with something less cryptic
lockdep: Print a nicer description for irq inversion bugs
lockdep: Print a nicer description for simple deadlocks
lockdep: Print a nicer description for normal deadlocks
lockdep: Print a nicer description for irq lock inversions
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 17ac5f87182d..9b1707b5f646 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -238,6 +238,21 @@ config DETECT_HUNG_TASK enabled then all held locks will also be reported. This feature has negligible overhead. +config DEFAULT_HUNG_TASK_TIMEOUT + int "Default timeout for hung task detection (in seconds)" + depends on DETECT_HUNG_TASK + default 120 + help + This option controls the default timeout (in seconds) used + to determine when a task has become non-responsive and should + be considered hung. + + It can be adjusted at runtime via the kernel.hung_task_timeout + sysctl or by writing a value to /proc/sys/kernel/hung_task_timeout. + + A timeout of 0 disables the check. The default is two minutes. + Keeping the default should be fine in most cases. + config BOOTPARAM_HUNG_TASK_PANIC bool "Panic (Reboot) On Hung Tasks" depends on DETECT_HUNG_TASK |