At Thu, 23 May 2013 19:41:58 +0200,
David Henningsson wrote:
On 05/23/2013 12:29 PM, Wang, Xingchao wrote:
-Original Message-
From: Takashi Iwai [mailto:ti...@suse.de]
Sent: Thursday, May 23, 2013 6:27 PM
To: Wang, Xingchao
Cc: Wang Xingchao; alsa-de...@alsa-project.org;
At Thu, 23 May 2013 09:51:07 +0800,
Wang Xingchao wrote:
There's deadlock when request_module(i915) in azx_probe.
It looks like:
device_lock(audio pci device) - azx_probe - module_request
(or symbol_request) - modprobe (userspace) - i915 init -
drm_pci_init - pci_register_driver -
Hi Takashi,
-Original Message-
From: Takashi Iwai [mailto:ti...@suse.de]
Sent: Thursday, May 23, 2013 2:49 PM
To: Wang Xingchao
Cc: alsa-de...@alsa-project.org; intel-gfx@lists.freedesktop.org;
david.hennings...@canonical.com; Girdwood, Liam R; Li, Jocelyn; Wang,
Xingchao; Lin,
At Thu, 23 May 2013 10:19:27 +,
Wang, Xingchao wrote:
Hi Takashi,
-Original Message-
From: Takashi Iwai [mailto:ti...@suse.de]
Sent: Thursday, May 23, 2013 2:49 PM
To: Wang Xingchao
Cc: alsa-de...@alsa-project.org; intel-gfx@lists.freedesktop.org;
-Original Message-
From: Takashi Iwai [mailto:ti...@suse.de]
Sent: Thursday, May 23, 2013 6:27 PM
To: Wang, Xingchao
Cc: Wang Xingchao; alsa-de...@alsa-project.org;
intel-gfx@lists.freedesktop.org; david.hennings...@canonical.com; Girdwood,
Liam R; Li, Jocelyn; Lin, Mengdong
There's deadlock when request_module(i915) in azx_probe.
It looks like:
device_lock(audio pci device) - azx_probe - module_request
(or symbol_request) - modprobe (userspace) - i915 init -
drm_pci_init - pci_register_driver - bus_add_driver - driver_attach -
which in turn tries all locks on pci
