linux-kernel - Re: mmotm 2010-07-19-16-37 uploaded

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Date:	Tue, 20 Jul 2010 16:38:42 -0400
From:	Jarod Wilson <jarod@...hat.com>
To:	Valdis.Kletnieks@...edu
Cc:	akpm@...ux-foundation.org,
	Mauro Carvalho Chehab <mchehab@...hat.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
	linux-input@...r.kernel.org
Subject: Re: mmotm 2010-07-19-16-37 uploaded

On Tue, Jul 20, 2010 at 04:41:32PM -0400, Valdis.Kletnieks@...edu wrote:
> On Mon, 19 Jul 2010 16:38:09 PDT, akpm@...ux-foundation.org said:
> > The mm-of-the-moment snapshot 2010-07-19-16-37 has been uploaded to
> > 
> >    http://userweb.kernel.org/~akpm/mmotm/
> 
> (Andrew - did we lose a bunch of -swedish-chef-fix-fix-fix.patch files? This is the second
> thing that I reported back in May, worked in mm-rc3-0701, but dies in -rc5-0719...)
> 
> [   50.949361] BUG: unable to handle kernel NULL pointer dereference at (null)
> [   50.950978] IP: [<(null)>] (null)
> [   50.952045] PGD 11b7b0067 PUD 119d9c067 PMD 0
> [   50.954744] Oops: 0010 [#1] PREEMPT SMP
> [   50.954744] last sysfs file: /sys/devices/pci0000:00/0000:00:1b.0/device
> [   50.954744] CPU 0
> [   50.954744] Modules linked in: microcode(+) [last unloaded: scsi_wait_scan]
> [   50.954744]
> [   50.967468] Pid: 2994, comm: keymap Tainted: G        W   2.6.35-rc5-mmotm0719 #1 0X564R/Latitude E6500
> [   50.967468] RIP: 0010:[<0000000000000000>]  [<(null)>] (null)
> [   50.967468] RSP: 0018:ffff88011e7e5cb0  EFLAGS: 00010046
> [   50.967468] RAX: 0000000000000000 RBX: ffff88011d8b5000 RCX: 0000000000000000
> [   50.967468] RDX: ffff88011e7e5cc8 RSI: ffff88011e7e5cc8 RDI: ffff88011d8b5000
> [   50.967468] RBP: ffff88011e7e5d28 R08: 0890000000000000 R09: 0000000000000001
> [   50.967468] R10: ffff88011d8b5858 R11: ffff88011d8b5840 R12: 0000000000000000
> [   50.967468] R13: 00000000000000a4 R14: ffff88011d8b5840 R15: 0000000000000296
> [   50.967468] FS:  00007fea0676e720(0000) GS:ffff880002600000(0000) knlGS:0000000000000000
> [   50.967468] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [   50.967468] CR2: 0000000000000000 CR3: 000000011f72b000 CR4: 00000000000406f0
> [   50.967468] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [   50.967468] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [   50.967468] Process keymap (pid: 2994, threadinfo ffff88011e7e4000, task ffff88011e620100)
> [   50.967468] Stack:
> [   50.967468]  ffffffff813b4b54 ffff88011e7e5cc8 0000008100000246 00000081000000a4
> [   50.967468] <0> 0000000000000004 0000000000000000 ffff88011e7e5cc4 00007fffe9f95f00
> [   50.967468] <0> ffff88011b4a3300 ffff88011e7e5d28 0000000000000081 fffffffffffffff2
> [   50.967468] Call Trace:
> [   50.967468]  [<ffffffff813b4b54>] ? input_set_keycode+0xbc/0x13c
> [   50.967468]  [<ffffffff813b7ee2>] evdev_do_ioctl+0x24c/0x816
> [   51.016215]  [<ffffffff813b84e6>] ? evdev_ioctl_handler+0x3a/0x81
> [   51.018336]  [<ffffffff813b84e6>] ? evdev_ioctl_handler+0x3a/0x81
> [   51.021130]  [<ffffffff813b8510>] evdev_ioctl_handler+0x64/0x81
> [   51.022519]  [<ffffffff813b854a>] evdev_ioctl+0xb/0xd
> [   51.024439]  [<ffffffff810e91a0>] vfs_ioctl+0x31/0xa2
> [   51.026408]  [<ffffffff810e9b1f>] do_vfs_ioctl+0x496/0x4c9
> [   51.028337]  [<ffffffff810e9ba9>] sys_ioctl+0x57/0x96
> [   51.030245]  [<ffffffff8100272b>] system_call_fastpath+0x16/0x1b
> [   51.032123] Code:  Bad RIP value.
> [   51.034015] RIP  [<(null)>] (null)
> [   51.037307]  RSP <ffff88011e7e5cb0>
> [   51.038270] CR2: 0000000000000000
> [   51.038270] ---[ end trace 84b562a00a6053a0 ]---
> 
> And things go downhill from there...

This looks like the same trace we got in the Red Hat bugzilla a few days
ago, and for which I submitted this:

https://patchwork.kernel.org/patch/112791/

-- 
Jarod Wilson
jarod@...hat.com

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