From: Oliver Neukum <oneukum@suse.de>
To: linux-usb-devel@lists.sourceforge.net
Cc: Greg KH <gregkh@suse.de>, Jeremy Fitzhardinge <jeremy@goop.org>,
Kevin Lloyd <linux@sierrawireless.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Kevin Lloyd <klloyd@sierrawireless.com>
Subject: Re: [linux-usb-devel] 2.6.21-rc4: NULL pointer dereference oops when unplugging sierra device
Date: Thu, 22 Mar 2007 10:04:46 +0100 [thread overview]
Message-ID: <200703221004.46806.oneukum@suse.de> (raw)
In-Reply-To: <20070321215309.GA18940@suse.de>
Am Mittwoch, 21. März 2007 22:53 schrieb Greg KH:
> > EIP is at sierra_shutdown+0x3a/0x113 [sierra]
> > eax: 00000000 ebx: 00000000 ecx: 00000000 edx: f8e52c9d
> > esi: 00000000 edi: e889fa1c ebp: e84c0e2c esp: e84c0e0c
> > ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068
> > Process pppd (pid: 3847, ti=e84c0000 task=e8553550 task.ti=e84c0000)
> > Stack: 00000002 e84c0e18 c01cfda8 e84c0e20 c0240431 e889fa1c 00000003 e8a79d00
> > e84c0e50 f8e219e4 f8e5212d 00000021 00000000 00000000 00000000 e889fa50
> > f8e21956 e84c0e70 c01d099a e84c0e78 f8e52c58 e84c0e6c f6c5576c f6c55760
> > Call Trace:
> > [<c0104e98>] show_trace_log_lvl+0x1a/0x2f
> > [<c0104f4a>] show_stack_log_lvl+0x9d/0xa5
> > [<c0105114>] show_registers+0x1c2/0x293
> > [<c0105307>] die+0x122/0x224
> > [<c030fe69>] do_page_fault+0x505/0x5e1
> > [<c030e5c4>] error_code+0x7c/0x84
> > [<f8e219e4>] destroy_serial+0x8e/0x124 [usbserial]
> > [<c01d099a>] kref_put+0x63/0x71
> > [<f8e217f0>] usb_serial_put+0x10/0x12 [usbserial]
> > [<f8e2194e>] serial_close+0xb6/0xbe [usbserial]
This looks like the "shutdown called too late bug".
Does the patch included here help:
http://lkml.org/lkml/2007/3/13/217
Regards
Oliver
prev parent reply other threads:[~2007-03-22 9:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-21 21:29 2.6.21-rc4: NULL pointer dereference oops when unplugging sierra device Jeremy Fitzhardinge
2007-03-21 21:53 ` Greg KH
2007-03-21 22:14 ` Jeremy Fitzhardinge
2007-03-22 9:04 ` Oliver Neukum [this message]
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