Re: [regression] CD-ROM polling blocks suspend on some machines(Re: [PATCH 1/2] cdrom: always check_disk_change() on open)

[Tejun Heo]

Hello,

On Wed, Oct 26, 2011 at 08:26:50PM +0200, Matthijs Kooijman - Brevidius wrote:
> Hi folks,
> 
> it seems this same problem also occurs with udisks-daemon, though the
> behaviour is slightly different (it seems to hang even before
> undocking, I _think_).
> 
> Anyway, here's the dmesg output when trying to suspend:

Can you please turn on CONFIG_FRAME_POINTER, trigger the problem, wait
for some minutes and then do sysrq-t and report the dmesg output?
This could be from DEAD state handling race currently being addressed
in upstream.

Thanks.

-- 
tejun
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