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Date: Tue, 16 Jan 2018 09:37:39 +0100
From: Ingo Molnar <mingo@kernel.org>
To: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linux-mm <linux-mm@kvack.org>,
	the arch/x86 maintainers <x86@kernel.org>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>,
	Michal Hocko <mhocko@kernel.org>
Subject: Re: [mm 4.15-rc8] Random oopses under memory pressure.
Message-ID: <20180116083739.irw62va5kpc62cvr@gmail.com>
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* Dave Hansen <dave.hansen@linux.intel.com> wrote:

> Did anyone else notice the
> 
> 	[   31.068198]  ? vmalloc_sync_all+0x150/0x150
> 
> present in a bunch of the stack traces?  That should be pretty uncommon.

I thikn that's pretty unusual:

>  Is it just part of the normal do_page_fault() stack and the stack
> dumper picks up on it?

No, it should only be called by register_die_notifier(), which is not part of the 
regular stack dump, AFAICS.

Thanks,

	Ingo

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