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| author | Dmitry Torokhov <dtor_core@ameritech.net> | 2005-09-09 20:14:47 -0500 |
|---|---|---|
| committer | Dmitry Torokhov <dtor_core@ameritech.net> | 2005-09-09 20:14:47 -0500 |
| commit | d344c5e0856ad03278d8700b503762dbc8b86e12 (patch) | |
| tree | a6d893a643470a3c2580a58f3228a55fa1fd1d82 /lib/Kconfig.debug | |
| parent | 010988e888a0abbe7118635c1b33d049caae6b29 (diff) | |
| parent | 87fc767b832ef5a681a0ff9d203c3289bc3be2bf (diff) | |
Manual merge with Linus
Diffstat (limited to 'lib/Kconfig.debug')
| -rw-r--r-- | lib/Kconfig.debug | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 299f7f3b5b08..3754c9a8f5c8 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -46,6 +46,25 @@ config LOG_BUF_SHIFT 13 => 8 KB 12 => 4 KB +config DETECT_SOFTLOCKUP + bool "Detect Soft Lockups" + depends on DEBUG_KERNEL + default y + help + Say Y here to enable the kernel to detect "soft lockups", + which are bugs that cause the kernel to loop in kernel + mode for more than 10 seconds, without giving other tasks a + chance to run. + + When a soft-lockup is detected, the kernel will print the + current stack trace (which you should report), but the + system will stay locked up. This feature has negligible + overhead. + + (Note that "hard lockups" are separate type of bugs that + can be detected via the NMI-watchdog, on platforms that + support it.) + config SCHEDSTATS bool "Collect scheduler statistics" depends on DEBUG_KERNEL && PROC_FS |