linux-kernel - Re: Oops in ecryptfs (apparently) with 3.1-rc6

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Date:	Thu, 29 Sep 2011 22:28:42 +0300
From:	Luciano Coelho <coelho@...com>
To:	Tyler Hicks <tyhicks@...onical.com>
Cc:	ecryptfs@...r.kernel.org, kirkland@...onical.com,
	linux-kernel@...r.kernel.org
Subject: Re: Oops in ecryptfs (apparently) with 3.1-rc6

On Thu, 2011-09-29 at 09:30 -0500, Tyler Hicks wrote: 
> On 2011-09-28 21:50:15, Luciano Coelho wrote:
> > On Fri, 2011-09-23 at 15:44 +0300, Luciano Coelho wrote: 
> > > [255264.517399] Call Trace:
> > > [255264.517406]  [<ffffffff81163f35>] ? vfs_read+0xc5/0x190
> > > [255264.517409]  [<ffffffff8125e0b2>] ecryptfs_decrypt_page+0xb2/0x190
> > > [255264.517413]  [<ffffffff8125bb08>] ecryptfs_readpage+0xd8/0x120
> > > [255264.517418]  [<ffffffff8110daf4>] generic_file_aio_read+0x234/0x740
> > > [255264.517424]  [<ffffffff8125863c>] ecryptfs_read_update_atime+0x1c/0x60
> > > [255264.517428]  [<ffffffff811637fa>] do_sync_read+0xda/0x120
> > > [255264.517434]  [<ffffffff81286a3b>] ? security_file_permission+0x8b/0x90
> > > [255264.517438]  [<ffffffff81163f35>] vfs_read+0xc5/0x190
> > > [255264.517441]  [<ffffffff81164101>] sys_read+0x51/0x90
> > > [255264.517446]  [<ffffffff815dc082>] system_call_fastpath+0x16/0x1b
> > > [255264.517448] Code: 98 41 0f af c5 89 85 58 ff ff ff 49 8b 44 24 40 48 89 45 90 e8 c5 4d 37 00 49 8b 44 24 40 49 8b 54 24 20 49 8d 74 24 70 48 89 c7 <ff> 50 10 85 c0 0f 85 40 01 00 00 31 c0 44 89 ea 48 c7 c6 50 cf 
> > > [255264.517481] RIP  [<ffffffff8125dddd>] ecryptfs_decrypt_extent+0x13d/0x360
> > > [255264.517485]  RSP <ffff88031c03db78>
> > > [255264.517487] CR2: 0000000000000010
> > > [255264.517490] ---[ end trace 6beaa9aa4bd67546 ]---
> > 
> > Did anyone else get a similar oops? Or does anyone have any clue what
> > this is about? I haven't seen any fix that could be related to this, so
> > I'm still really wary of using 3.1-rc*. ;)
> 
> I haven't seen that one. Was your kernel build using more than one job?

Yes, I always build my kernel using 20 jobs on my quadcore with 8
threads.


> I'll take a closer look and try to reproduce it here. Thanks for the
> report!

You're welcome.  Let me know if you need any more info.  As I said
originally, I had been using the kernel for about a week before this
happened, so I'm not sure it's easily reproducible.

-- 
Cheers,
Luca.

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