diff options
| author | Wang Qing <wangqing@vivo.com> | 2021-06-29 04:34:24 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-29 19:53:46 +0200 |
| commit | 256f7a6791e8f19bafa1d702f69a6a6ba16250e3 (patch) | |
| tree | 5d9d4619746da00e0210734ed957a6e348f53e1c /Documentation/admin-guide | |
| parent | doc: watchdog: modify the explanation related to watchdog thread (diff) | |
| download | linux-256f7a6791e8f19bafa1d702f69a6a6ba16250e3.tar.xz linux-256f7a6791e8f19bafa1d702f69a6a6ba16250e3.zip | |
doc: watchdog: modify the doc related to "watchdog/%u"
"watchdog/%u" threads has be replaced by cpu_stop_work. The current
description is extremely misleading.
Link: https://lkml.kernel.org/r/1619687073-24686-5-git-send-email-wangqing@vivo.com
Signed-off-by: Wang Qing <wangqing@vivo.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Cc: "Guilherme G. Piccoli" <gpiccoli@canonical.com>
Cc: Joe Perches <joe@perches.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc: Qais Yousef <qais.yousef@arm.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Santosh Sivaraj <santosh@fossix.org>
Cc: Stephen Kitt <steve@sk2.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/sysctl/kernel.rst | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst index 68b21395a743..04c79017814b 100644 --- a/Documentation/admin-guide/sysctl/kernel.rst +++ b/Documentation/admin-guide/sysctl/kernel.rst @@ -1283,11 +1283,11 @@ This parameter can be used to control the soft lockup detector. = ================================= The soft lockup detector monitors CPUs for threads that are hogging the CPUs -without rescheduling voluntarily, and thus prevent the 'watchdog/N' threads -from running. The mechanism depends on the CPUs ability to respond to timer -interrupts which are needed for the 'watchdog/N' threads to be woken up by -the watchdog timer function, otherwise the NMI watchdog — if enabled — can -detect a hard lockup condition. +without rescheduling voluntarily, and thus prevent the 'migration/N' threads +from running, causing the watchdog work fail to execute. The mechanism depends +on the CPUs ability to respond to timer interrupts which are needed for the +watchdog work to be queued by the watchdog timer function, otherwise the NMI +watchdog — if enabled — can detect a hard lockup condition. stack_erasing |