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| author |   Krister Johansen <kjlx@templeofstupid.com> | 2023-10-27 14:46:53 -0700 |
|---|---|---|
| committer |   Luis Chamberlain <mcgrof@kernel.org> | 2023-11-01 12:10:02 -0700 |
| commit | 8b793bcda61f6c3ed4f5b2ded7530ef6749580cb (patch) | |
| tree | 36f65aa933d41897d98632de10c590881d3e6f67 /fs/proc/proc_sysctl.c | |
| parent | proc: sysctl: prevent aliased sysctls from getting passed to init (diff) | |
| download | wireguard-linux-8b793bcda61f6c3ed4f5b2ded7530ef6749580cb.tar.xz wireguard-linux-8b793bcda61f6c3ed4f5b2ded7530ef6749580cb.zip | |
watchdog: move softlockup_panic back to early_param
Setting softlockup_panic from do_sysctl_args() causes it to take effect
later in boot. The lockup detector is enabled before SMP is brought
online, but do_sysctl_args runs afterwards. If a user wants to set
softlockup_panic on boot and have it trigger should a softlockup occur
during onlining of the non-boot processors, they could do this prior to
commit f117955a2255 ("kernel/watchdog.c: convert {soft/hard}lockup boot
parameters to sysctl aliases"). However, after this commit the value
of softlockup_panic is set too late to be of help for this type of
problem. Restore the prior behavior.
Signed-off-by: Krister Johansen <kjlx@templeofstupid.com>
Cc: stable@vger.kernel.org
Fixes: f117955a2255 ("kernel/watchdog.c: convert {soft/hard}lockup boot parameters to sysctl aliases")
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Diffstat (limited to 'fs/proc/proc_sysctl.c')
| -rw-r--r-- | fs/proc/proc_sysctl.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index 1c9635dddb70..de484195f49f 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -1576,7 +1576,6 @@ static const struct sysctl_alias sysctl_aliases[] = { {"hung_task_panic", "kernel.hung_task_panic" }, {"numa_zonelist_order", "vm.numa_zonelist_order" }, {"softlockup_all_cpu_backtrace", "kernel.softlockup_all_cpu_backtrace" }, - {"softlockup_panic", "kernel.softlockup_panic" }, { } }; |