Red Hat Bugzilla – Bug 530899
lockup during hibernate if running find
Last modified: 2010-12-03 22:41:32 EST
Created attachment 366051 [details]
tarball containing full logs from a system where this was seen.
Description of problem:
System recovery from hibernate when find is running fails
Version-Release number of selected component (if applicable):
tested once. will test again.
Steps to Reproduce:
1. fresh install of Fedora 12 on my core2duo
2. boot up
4. restart (everything okay)
5. start "find /"
7. try to restart
System boots up to a blank screen. No virtual consoles seem to be active magic-sysrq-s causes disk activity but afterwards magic-sysrq-b does not cause reboot.
system should hibernate; find should be suspended; when system recovers, find should continue.
System is generally stable for multiple days and across full runs of memtest86
Also have Bug #529590 open against fedora 11, but this seems to be different since there is no sign of any problem after the first hibernate and no sign of failing processes in the log.
kernel version appears to be
Unfortuanately sosreport isn't working for me right now (like bug 523274) so I just attach the log files in a tarball. System failure seems to be at
Oct 25 00:51:21
Created attachment 366767 [details]
entire /var/log from system where bug is seen after more hibernate tests.
I've just reproduced this bug with 22.214.171.124-96.fc12.x86_64 however, with the comment that a normal recover from didn't work properly either. Although the system came up the video signal looked weak / washed out..
I think that I should stress that this system is completely stable apart from when I hibernate (runs memtest86 through entire cycle / multi-day uptime / heavy user loads /compilation etc.)
Some interesting times from logs
Oct 30 08:25:37 - boot up
Oct 30 08:25:43 - ivortest kernel: [drm:drm_mode_rmfb] *ERROR* tried to remove a fb that we didn't own
Oct 30 08:28:34 - attempt to hibernate with find running
Oct 30 08:28:34 - restore with find / running
Oct 30 08:35:55 - forced reboot after lock up
Oct 30 08:38:26 - hibernate with no special load
Oct 30 08:38:27 - seems to be time of restore to working but with a "washed out" video screen
Oct 30 08:39:33 - reboot to beta system from which I'm now reporting this bug
This bug appears to have been reported against 'rawhide' during the Fedora 12 development cycle.
Changing version to '12'.
More information and reason for this action is here:
Created attachment 370210 [details]
backtrace of a frozen find command after hibernate.
Currently running: 126.96.36.199-96.fc12.x86_64
though /etc/fedora-release says:
Fedora release 13 (Rawhide)
This problem has improved. I managed to hibernate and un-hibernate running find and it continued from where it left off. Then I tried again. The second time the find process stopped but everything else seems to have continued fine. I managed to get a backtrace from the find process after the hibernate. Please see the attachment. Afterwards the find seemed to respond to a ctrl-C.
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