Re: [patch] oom: dump stack and VM state when oom killer panics

[KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>]

Hello

> The oom killer header, including information such as the allocation order
> and gfp mask, current's cpuset and memory controller, call trace, and VM
> state information is currently only shown when the oom killer has
> selected a task to kill.
> 
> This information is omitted, however, when the oom killer panics either
> because of panic_on_oom sysctl settings or when no killable task was
> found.  It is still relevant to know crucial pieces of information such
> as the allocation order and VM state when diagnosing such issues,
> especially at boot.
> 
> This patch displays the oom killer header whenever it panics so that bug
> reports can include pertinent information to debug the issue, if
> possible.
> 
> Signed-off-by: David Rientjes <rientjes@google.com>

Good patch :)

I have one request. In panic case, I don't hope to call printk_ratelimit().
the infomation should be displayed always.

Thanks.