From: "Stian Skjelstad" <stian@nixia.no>
To: "'Jean-Francois Moine'" <moinejf@free.fr>
Cc: <linux-media@vger.kernel.org>
Subject: RE: gpsca kernel BUG when disconnecting camera while streaming with mmap (2.6.29-rc8)
Date: Thu, 2 Apr 2009 09:22:41 +0200 [thread overview]
Message-ID: <000301c9b363$d0533ce0$70f9b6a0$@no> (raw)
In-Reply-To: <20090402091112.5411b711@free.fr>
> Stian Skjelstad <stian@nixia.no> wrote:
> [snip]
> > usb 2-2: USB disconnect, address 47
>> gspca: urb status: -108
>> gspca: urb status: -108
>> gspca: disconnect complete
>> BUG: unable to handle kernel NULL pointer dereference at 00000014
>> IP: [<c02bc98e>] usb_set_interface+0x1e/0x1e0
>> *pde = 00000000
>> Oops: 0000 [#1] PREEMPT
> [snip]
>
>You did not tell which version of gspca you use. If it is the one of a
>kernel older than 2.6.30, you should update. Also, may this problem
>be reproduced?
I'm using the built in one. I'm going to upgrade to 2.6.29 very soon. And if
problem still persists, I can build gspca outside the kernel instead.
Yes, the error happens often, and the process attached to it stucks in
kernel mode, being unkillable (not even SIGKILL, followed be a SIGCONT
helps). I believe it stucks with ioctl DQUE call; I'll do a strace later
when I get the time available.
The USB ports available are USB 1.1 only (old laptop).
next prev parent reply other threads:[~2009-04-02 7:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-29 17:25 gpsca kernel BUG when disconnecting camera while streaming with mmap (2.6.29-rc8) Stian Skjelstad
2009-04-02 7:11 ` Jean-Francois Moine
2009-04-02 7:22 ` Stian Skjelstad [this message]
2009-04-02 22:54 ` Adam Baker
2009-04-03 6:33 ` Stian Skjelstad
2009-04-04 10:09 ` Stian Skjelstad
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