|Summary:||System freeze at resume after suspend to RAM|
|Product:||Power Management||Reporter:||Christian Casteyde (casteyde.christian)|
|Bug Depends on:|
|Bug Blocks:||7216, 13615|
dmesg output after boot for 2.6.31-rc3
lspci for 2.6.31-rc3
lsusb for 2.6.31-rc3
syslog errors at resume
Add the suspend/resume flag to aovid smp call in course of cpufreq_suspend/resume
dmesg for 2.6.31+proposed fix after resume
Description Christian Casteyde 2009-07-15 18:42:28 UTC
Comment 1 Christian Casteyde 2009-07-15 18:43:02 UTC
Created attachment 22361 [details] lspci for 2.6.31-rc3
Comment 2 Christian Casteyde 2009-07-15 18:43:27 UTC
Created attachment 22362 [details] lsusb for 2.6.31-rc3
Comment 3 Christian Casteyde 2009-07-15 18:50:44 UTC
Created attachment 22363 [details] syslog errors at resume seems to be a lock problem that cause the freeze.
Comment 4 ykzhao 2009-07-21 06:45:32 UTC
Hi, Christian From the log in comment #3 it seems that there exists the following warning message in course of hibernation. >WARNING: at drivers/base/sys.c:411 sysdev_suspend+0x1f7/0x2b0() Jul 15 20:13:03 athor kernel: Hardware name: Aspire 1510 Jul 15 20:13:03 athor kernel: Interrupts enabled after cpufreq_suspend+0x0/0x110 >WARNING: at drivers/base/sys.c:475 sysdev_resume+0x9f/0xb0() Jul 15 20:13:03 athor kernel: Hardware name: Aspire 1510 Jul 15 20:13:03 athor kernel: Interrupts enabled while resuming system devices Will you please confirm whether the issue is S3 or hibernation? Thanks.
Comment 5 Christian Casteyde 2009-07-22 19:21:29 UTC
I still do not know exactly the difference between S3 and hibernation. The laptop is suspended with the following script: # Stops network: /etc/rc.d/rc.inet1 eth1_stop # Flush all data to disk (just in case) LD_PRELOAD="" sync # Save the system time hwclock --systohc --utc # Suspend echo -n mem > /sys/power/state # 2.6.25 does not send lid event at resume: rm -rf /var/state/hibernating # Restore the system time hwclock --hctosys --utc # Reset the graphic card vbetool post So it's basically a suspend to ram for me...
Comment 6 ykzhao 2009-07-23 02:06:03 UTC
Hi, Christian Will you please try the debug patch in http://bugzilla.kernel.org/show_bug.cgi?id=13269#C8 and attach the output of dmesg after suspend/resume? Thanks.
Comment 7 ykzhao 2009-07-23 07:15:46 UTC
Created attachment 22463 [details] Add the suspend/resume flag to aovid smp call in course of cpufreq_suspend/resume Will you please try the attached debug patch and see whether the issue still exist? Thanks.
Comment 8 Christian Casteyde 2009-07-23 17:38:00 UTC
Created attachment 22476 [details] dmesg for 2.6.31+proposed fix after resume Here is the dmesg output after suspend/resume. The kernel was patched with both patches (printk debug patches + your proposed patch to avoid smp in suspend/resume - btw my kernel is not smp enabled, but preempt enabled), and it seems to resume correctly now. Without it, it would block on a black screen, so the proposed patch improves if not fixes the problem. Hope this dmesg output will help you to analyze/confirm. Thanks
Comment 9 Christian Casteyde 2009-07-23 17:41:33 UTC
Btw, I've also new critical errors at resume (maybe not the same problem, but as it's the same context, I report here) Message from syslogd@athor at Thu Jul 23 19:39:43 2009 ... athor kernel: Uhhuh. NMI received for unknown reason a0 on CPU 0. Message from syslogd@athor at Thu Jul 23 19:39:43 2009 ... athor kernel: Dazed and confused, but trying to continue Message from syslogd@athor at Thu Jul 23 19:39:43 2009 ... athor kernel: You have some hardware problem, likely on the PCI bus. This is also a new problem, that didn't exist with 2.6.30 kernels. Otherwise, the system works after that.
Comment 10 ykzhao 2009-07-24 01:05:18 UTC
Hi, Christian Thanks for the test. It seems that it can be resumed correctly now. And OS won't complain the following warning message after applying the patch. >WARNING: at drivers/base/sys.c:411 sysdev_suspend+0x1f7/0x2b0() Jul 15 20:13:03 athor kernel: Hardware name: Aspire 1510 Jul 15 20:13:03 athor kernel: Interrupts enabled after cpufreq_suspend+0x0/0x110 >WARNING: at drivers/base/sys.c:475 sysdev_resume+0x9f/0xb0() Jul 15 20:13:03 athor kernel: Hardware name: Aspire 1510 Jul 15 20:13:03 athor kernel: Interrupts enabled while resuming system devices So this bug will be marked as resolved. And I will try to push the patch in comment #7. thanks.
Comment 11 Rafael J. Wysocki 2009-07-28 20:43:33 UTC
On Tuesday 28 July 2009, Christian Casteyde wrote: > Still present in rc4, but a patch is pending for inclusion. > > Le dimanche 26 juillet 2009, vous avez écrit : > > This message has been generated automatically as a part of a report > > of recent regressions. > > > > The following bug entry is on the current list of known regressions > > from 2.6.30. Please verify if it still should be listed and let me know > > (either way). > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13781 > > Subject : System freeze at resume after suspend to RAM > > Submitter : Christian Casteyde <email@example.com> > > Date : 2009-07-15 18:42 (12 days old)
Comment 12 Rafael J. Wysocki 2009-07-28 22:27:21 UTC
Handled-By : Zhao Yakui <firstname.lastname@example.org> Patch : http://bugzilla.kernel.org/attachment.cgi?id=22463
Comment 13 Rafael J. Wysocki 2009-08-05 11:48:55 UTC
Should be fixed by http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4bc5d34135039566b8d6efa2de7515b2be505da8 . Please reopen in case it's not fixed.