Bug#594125: [linux-image-2.6.35-trunk-amd64] BSD ring buffer implementation makes suspend to ram unreliable
severity 594125 important
stop
On Mon, Aug 23, 2010 at 10:28:31PM +0200, Florian Kriener wrote:
> Package: linux-image-2.6.35-trunk-amd64
> Version: 1~experimental.2
> Severity: grave
> Tags: patch
important is enough.
> --- Please enter the report below this line. ---
> There is a bug in the linux kernel 2.6.35, that makes suspend to ram
> unusable (it seems to be fixed in 2.6.36-rc2) [1]. The symptoms are:
> - Suspend to ram from X hangs the computer, the only option is to press
> the power button for ~5 sec and thus forcefully turning off the
> computer (SysRq does not work for me). After a while (when not
> turning off the computer of cause) the fan goes to full power.
> - However, suspend to ram from console works.
> - The hang does happen every time on my laptop. However, on some
> computers that seems to happen only sporadically.
experienced similar stuff here on a X201 Thinkpad.
> The link [1] contains two possible solutions for this problem.
> 1. Turn off BSD completely by replacing the corresponding define
> in i915_drv.h with
> #define HAS_BSD(dev) (0)
> 2. 2.6.36-rc2 seems to fix the problem (according to a comment on [1]).
>
> [1] https://bugs.freedesktop.org/show_bug.cgi?id=29406
ok marking as forwarded.
once a specific patch emerges out of that report, we can add it,
otherwise it should go through stable.
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