|Summary:||BUG at perf_ctx_adjust_freq (kernel/perf_event.c:1582)|
|Product:||Other||Reporter:||Maciej Rutecki (maciej.rutecki)|
|Severity:||normal||CC:||alan, chris, difrost.kernel, florian, maciej.rutecki, rjw|
|Bug Depends on:|
screenshot from iLO
Another crash screenshot
Description Maciej Rutecki 2010-12-12 14:49:49 UTC
Subject : BUG at perf_ctx_adjust_freq (kernel/perf_event.c:1582) Submitter : Chris Wilson <email@example.com> Date : 2010-12-10 12:00 Message-ID : firstname.lastname@example.org References : http://marc.info/?l=linux-kernel&m=129198247531612&w=2 This entry is being used for tracking a regression from 2.6.36. Please don't close it until the problem is fixed in the mainline.
Comment 1 Florian Mickler 2011-02-20 12:46:39 UTC
I'm closing this as unreproducible for now. If it happens again, please shout.
Comment 2 Jacek Luczak 2011-03-23 14:21:12 UTC
Got same issue with plain 2.6.37. Can't really reproduce it as hunted this down for the first time but I suspect that same have happened a day before on two different hosts. Both are under huge load so this might be a key. Got a screenshot from iLO a bit mixed with top output.
Comment 3 Jacek Luczak 2011-03-23 14:24:52 UTC
Created attachment 51742 [details] screenshot from iLO Got the screenshot from iLO.
Comment 4 Jacek Luczak 2011-03-24 07:30:50 UTC
Another two hosts running vanilla 2.6.37 died in the night due to same issue. Please reopen.
Comment 5 Jacek Luczak 2011-03-24 09:03:34 UTC
And another one. top was running and the last thing it ,,recorded'' was: top - 09:52:52 up 17:39, 14 users, load average: 3.25, 2.45, 2.70 Tasks: 472 total, 9 running, 458 sleeping, 1 stopped, 4 zombie Cpu(s): 58.8%us, 6.1%sy, 5.1%ni, 29.2%id, 0.6%wa, 0.0%hi, 0.1%si, 0.0%st Mem: 49553716k total, 49115852k used, 437864k free, 279460k buffers Swap: 4095996k total, 0k used, 4095996k free, 39703932k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 23840 userr 20 0 706m 107m 9128 S 200.7 0.2 0:08.15 java 23544 userr 20 0 276m 16m 5328 S 140.7 0.0 0:05.63 wmp
Comment 6 Jacek Luczak 2011-03-24 12:36:27 UTC
Created attachment 51882 [details] Another crash screenshot Clean screenshot from last crash.
Comment 7 Florian Mickler 2011-04-17 16:18:35 UTC
Is this still an issue in 2.6.38?
Comment 8 Jacek Luczak 2011-04-19 09:09:28 UTC
Did not tested that on 2.6.38. Might be hard as this is triggered by production CI system. For sure I can confirm the problem is in huge number of processes running which cause a load above 100.