Hi Emil, sorry for the long silence, but I did not have physical access to the machine for which I reported the bug and I did not want to install new kernel from remote...
I recompiled a recent kernel with PM_TRACE_RTC enabled, but still get no log data in pm-suspend.log: root@Silberkiste:~# uname -a Linux Silberkiste 4.0.0-rc2+ #1 SMP Thu Mar 5 01:01:25 CET 2015 x86_64 GNU/Linux root@Silberkiste:~# grep PM_TRACE_RTC /boot/config-4.0.0-rc2+ CONFIG_PM_TRACE_RTC=y root@Silberkiste:~# head -4 /usr/lib/pm-utils/pm-functions #!/bin/sh # vim:noexpandtab export PM_DEBUG=true root@Silberkiste:~# cat /var/log/pm-suspend.log root@Silberkiste:~# ls -l /var/log/pm-suspend.log -rw-r--r-- 1 root root 0 Jan 3 15:52 /var/log/pm-suspend.log root@Silberkiste:~# I did 501 echo 1 > /sys/power/pm_trace 502 echo mem > /sys/power/state but this did not create any logs. Do you have any suggestions, what I might do wrong? Thanks, Rainer On Sunday 04 January 2015 18:12:44 Emil Goode wrote: > Hello Rainer, > > On Sat, Jan 03, 2015 at 04:23:44PM +0100, Rainer Dorsch wrote: > > Hi Emil, > > > > I have only remote access to the system for the next few weeks and I feel > > somewhat uncomfortable to experiment with my self-compiled kernels on the > > system or changing networking configurations. > > > > So please apologize that I may need 3-4 weeks to test that. > > > > I assume you suggest to follow > > > > http://kernel-handbook.alioth.debian.org/ch-common-tasks.html > > > > to enable PM_TRACE_RTC and rebuild the kernel, correct? > > Yes and you can clone this tree for testing upstream kernels. > > git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > > Best regards, > > Emil Goode > > > On Tuesday 30 December 2014 12:40:53 Emil Goode wrote: > > > 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-u > > > > nload-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 -- Rainer Dorsch http://bokomoko.de/
