linux-kernel - Re: linux-next: Tree for January 15 (Call Trace in fs/dcache.c + autofs4)

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Message-ID: <AANLkTinNVp1r2+w7Uxh4AG=_8bTaOTm_oxfg8zc8O1CY@mail.gmail.com>
Date:	Sat, 15 Jan 2011 09:10:36 +0100
From:	Sedat Dilek <sedat.dilek@...glemail.com>
To:	Al Viro <viro@...iv.linux.org.uk>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>, raven@...maw.net
Subject: Re: linux-next: Tree for January 15 (Call Trace in fs/dcache.c + autofs4)

On Sat, Jan 15, 2011 at 8:57 AM, Al Viro <viro@...iv.linux.org.uk> wrote:
> On Sat, Jan 15, 2011 at 08:46:20AM +0100, Sedat Dilek wrote:
>
>> Will try the patch from [1] as there was no feedback yet.
>>
>> - Sedat -
>>
>> [1] https://lkml.org/lkml/2011/1/12/394
>
> There's also vfsmount refcounting breakage somewhere in automount series,
> unfortunately caught only when redoing said refcounting on top of it [1] ;-/
> I'm bisecting it right now, will post when it's done.
>
> [1] with mnt{get,put}_long() variant the breakage is present, but not
> immediately noticable.  With (local) rewrite to saner rules it became
> visible, but I spent quite a while trying to find the bug in the most
> obvious place - i.e. that rewrite.
>

[ CCing Ian Kent ]

The winner is... Have a nice breakfast :-)

The patch (which is once again hided in a thread posting) from [1]
does not cleanly apply against linux-next (next-20110115).
But if you say there is more to be done I can be patient and won't try
to adapt the patch by Ian Kent.

- Sedat -

[1] https://patchwork.kernel.org/patch/475201/

P.S.:

sd@...x:~/src/linux-2.6/linux-2.6.37/debian/build/source_i386_none$
LC_ALL=C quilt -f push
Applying patch autofs4-fix/autofs4-set-dentry-op-in-lookup-only.patch
patching file fs/autofs4/root.c
Hunk #1 FAILED at 419.
Hunk #2 FAILED at 568.
Hunk #3 succeeded at 521 (offset -68 lines).
Hunk #4 FAILED at 716.
Hunk #5 succeeded at 586 (offset -148 lines).
Hunk #6 FAILED at 853.
Hunk #7 succeeded at 774 (offset -96 lines).
Hunk #8 FAILED at 950.
5 out of 8 hunks FAILED -- saving rejects to file fs/autofs4/root.c.rej
Applied patch autofs4-fix/autofs4-set-dentry-op-in-lookup-only.patch
(forced; needs refresh)
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