linux-ext4 - Re: fuzz testing a KVM machine (x86) with ext4fs forces much more often the oom killer than btrfs

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Date:	Tue, 25 Nov 2014 22:31:36 +0100
From:	Toralf Förster <toralf.foerster@....de>
To:	Theodore Ts'o <tytso@....edu>
CC:	linux-ext4@...r.kernel.org
Subject: Re: fuzz testing a KVM machine (x86) with ext4fs forces much more
 often the oom killer than btrfs

On 11/25/2014 04:15 AM, Theodore Ts'o wrote:
> No idea; can you grab /proc/slabinfo and /proc/meminfo every minute or
> so until it oom kills trinity?  Maybe that will give us a hint of at
> least where the memory is getting consumed.

Tried to collect it (started trinity at 21:11), but the virtual machine crashed before at 21:55., nothing was logged BTW. 
But I'm pretty sure the free memory was gone, b/c the value LowFree was drastically reduced (7 files attached)


-- 
Toralf
pgp key: 0076 E94E


View attachment "meminfo.141125_211143" of type "text/plain" (1120 bytes)

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View attachment "messages.log" of type "text/x-log" (8933 bytes)

View attachment "slabinfo.141125_211143" of type "text/plain" (9641 bytes)

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