Bug#774036: Re: Bug#774036: linux-image-3.16.0-4-amd64: Untainted Kernel shows similar issue
Hello Rainer,
On Tue, Dec 30, 2014 at 12:15:31AM +0100, Rainer Dorsch wrote:
> Hi Emil,
>
> Am Montag 29 Dezember 2014, 14:02:55 schrieb Emil Goode:
> > Hello Rainer,
> >
> > The below procedure would give more information:
> >
> > Add the following line to the top of the file
> > /usr/lib/pm-utils/pm-functions.
> >
> > export PM_DEBUG=true
> >
> > Then suspend with:
> >
> > echo 1 > /sys/power/pm_trace
> > echo mem > /sys/power/state
>
> Hmm....I do not have a pm_trace
Ok, that is because PM_TRACE_RTC needs to be enabled in the kernel config.
Please be aware that when using pm_trace it will mess with your machine's
real-time clock.
> There is a similar bug report already for an older kernel, but that seems to
> be fixed (?)
>
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=638264
The iwlagn module is for intel wireless and I believe you are using broadcom.
> > Post dmesg and the contents of /var/log/pm-suspend.log.
> >
> > Have you tried disabling the mac80211 module?
>
> Can you tell how I unload a module for suspend or if
>
> http://superuser.com/questions/620201/how-to-force-ubuntu-debian-mint-to-unload-modules-at-suspend-to-disk
> also applies to systemd?
I think you can temporarily blacklist modules as described here:
https://wiki.debian.org/KernelModuleBlacklisting
I would also try the latest upstream kernel, this might have been fixed.
Best regards,
Emil Goode
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