Summary: | gentoo-sources-2.6.23-r3 - Processes get stuck in disk state | ||
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Product: | Gentoo Linux | Reporter: | Kai Krakow <hurikhan77+bgo> |
Component: | [OLD] Core system | Assignee: | Gentoo Kernel Bug Wranglers and Kernel Maintainers <kernel> |
Status: | RESOLVED NEEDINFO | ||
Severity: | critical | ||
Priority: | High | ||
Version: | unspecified | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Package list: | Runtime testing required: | --- |
Description
Kai Krakow
2007-12-31 12:47:23 UTC
Trying the latest gentoo-sources-2.6.23-r6 changes the behaviour but the system still becomes unresponsive. Process now aren't shown to be in disk state when I look at ps or top but the system still comes to a full stop during intensive IO operations (not bulk transfers) as described before. Maybe this helps tracking down the problem to some patches involved during changes from r3 -> r6. A similar problem was discussed extensively on the upstream mailing lists for 2.6.23.X. Can you test with gentoo-sources-2.6.24-r2 and if the problem persists, please test with the latest development kernel which is 2.6.25-rc2 as of this comment. (In reply to comment #2) > A similar problem was discussed extensively on the upstream mailing lists for > 2.6.23.X. Do you have a link so I can do some reading? Would be nice... ;-) > Can you test with gentoo-sources-2.6.24-r2 and if the problem persists, please > test with the latest development kernel which is 2.6.25-rc2 as of this comment. I will try the 24 version then and let you know. > Can you test with gentoo-sources-2.6.24-r2 I have tested with 2.6.24-r3. The problem persists but symptoms changed: Instead of "top" showing processes in disk state, these processes now just hang in sleep state. I did not try to kill the processes. First konqueror stopped responding, later kdesktop stopped responding. After switching to tty and back to X, even X stopped responding (no more ctrl+alt+f# switching to console possible). I did Ctrl+SysRq+S,U,B then. > and if the problem persists, please > test with the latest development kernel which is 2.6.25-rc2 as of this comment. I suppose I need to use vanilla sources for that? Any gentoo specific patches I should apply first? No specific gentoo patches to apply, just always grab the latest development kernel for testing which is 2.6.25-rc5 at this point. I still didn't try 2.6.25 yet. But I am running 2.6.24 pretty successful currently after I switched vom CFQ to AS io scheduler. At least I had no lockups since. But I admit I wasn't using my system too intensive since that time. Thanks for the update. Let us know what the results are if you have chance to try a more intensive test. Using AS instead of CFQ seemed to completely fix it on my setup with 2.6.24. I assume this is related to changes in CFQ not playing well with NFS/XFS setups. I will try CFQ again when gentoo-sources updates to 2.6.25 stable... (In reply to comment #8) > I will try CFQ again when gentoo-sources updates to 2.6.25 stable... > Have you had a chance to test with the latest gentoo-sources-2.6.25-rX release? Please reopen with the results if you're interested in pursuing this further. |