[Bugme-janitors] [Bug 9182] Critical memory leak (dirty pages)

bugme-daemon at bugzilla.kernel.org bugme-daemon at bugzilla.kernel.org
Sun Dec 16 02:12:30 PST 2007


http://bugzilla.kernel.org/show_bug.cgi?id=9182





------- Comment #40 from olel at ans.pl  2007-12-16 02:12 -------


On Sun, 16 Dec 2007, bugme-daemon at bugzilla.kernel.org wrote:

> http://bugzilla.kernel.org/show_bug.cgi?id=9182
>
>
>
>
>
> ------- Comment #39 from mingo at elte.hu  2007-12-16 01:58 -------
>
>> So:
>>   - 2.6.20-rc1: OK
>>   - 2.6.20-rc1-git8 with fba2591bf4e418b6c3f9f8794c9dd8fe40ae7bd9 reverted: OK
>>   - 2.6.20-rc1-git8: very BAD
>>   - 2.6.20-rc2: very BAD
>>   - 2.6.20-rc4: very BAD
>>   - >= 2.6.20: BAD (but not *very* BAD!)
>
> based on the great info you already acquired, you should be able to
> bisect this rather effectively, via:
>
> 2.6.20-rc1-git8 == 921320210bd2ec4f17053d283355b73048ac0e56
>
> $ git-bisect start
> $ git-bisect bad 921320210bd2ec4f17053d283355b73048ac0e56
> $ git-bisect good v2.6.20-rc1
> Bisecting: 133 revisions left to test after this
>
> so about 7-8 bootups would pinpoint the breakage.

Except that I have very limited time where I can do my tests on this host. 
Please also note that it takes about ~2h after a reboot, to be 100% sure. 
So, 7-8 bootups => 14-16h. :|

> It would likely pinpoint fba2591b, so it would perhaps be best to first
> attempt a revert of fba2591b on a recent kernel.

I wish I could: :(

ole at cougar:/usr/src/linux-2.6.23.9$ cat ..p1 |patch -p1 --dry-run -R
patching file fs/hugetlbfs/inode.c
Hunk #1 succeeded at 203 (offset 27 lines).
patching file include/linux/page-flags.h
Hunk #1 succeeded at 262 (offset 9 lines).
patching file mm/page-writeback.c
Hunk #1 succeeded at 903 (offset 58 lines).
patching file mm/truncate.c
Unreversed patch detected!  Ignore -R? [n] y
Hunk #1 succeeded at 52 with fuzz 2 (offset 1 line).
Hunk #2 FAILED at 85.
Hunk #3 FAILED at 365.
Hunk #4 FAILED at 400.
3 out of 4 hunks FAILED -- saving rejects to file mm/truncate.c.rej

Best regards,

                                Krzysztof Olêdzki


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