linux-kernel - Re: [Bisected Regression in 2.6.35] A full tmpfs filesystem causeshibernation to hang

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Message-Id: <20100831155302.87E2.A69D9226@jp.fujitsu.com>
Date:	Tue, 31 Aug 2010 15:54:09 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	kosaki.motohiro@...fujitsu.com,
	"M. Vefa Bicakci" <bicave@...eronline.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [Bisected Regression in 2.6.35] A full tmpfs filesystem causeshibernation to hang

> > === 8< ===
> > PM: Marking nosave pages: ...0009f000 - ...000100000
> > PM: basic memory bitmaps created
> > PM: Syncing filesystems ... done
> > Freezing user space processes ... (elapsed 0.01 seconds) done.
> > Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
> > PM: Preallocating image memory...
> > shrink_all_memory start
> > PM: shrink memory: pass=1, req:310171 reclaimed:15492 free:360936
> > PM: shrink memory: pass=2, req:294679 reclaimed:28864 free:373981
> > PM: shrink memory: pass=3, req:265815 reclaimed:60311 free:405374
> > PM: shrink memory: pass=4, req:205504 reclaimed:97870 free:443024
> > PM: shrink memory: pass=5, req:107634 reclaimed:146948 free:492141
> > shrink_all_memory: req:107634 reclaimed:146948 free:492141
> > PM: preallocate_image_highmem 556658 278329
> > PM: preallocate_image_memory 103139 103139
> > PM: preallocate_highmem_fraction 183908 556658 760831 -> 183908
> > === >8 ===
> > 
> > According to your patch, the next output should have been
> > "preallocate_image_memory ...", but it never gets printed, so the
> > hang point should be that function.
> 
> Great!
> I've attached more verbose debug message patch and trial bug fixing patch.
> Could you please to try this?

Oops, please apply attached patch instead 0002-add-gfp_noretry.patch.

Thanks.

Download attachment "0001-do_try_to_free_pages-oom_killer_disabled.patch" of type "application/octet-stream" (955 bytes)