Messages in this thread | | | Date | Fri, 21 Nov 2008 15:54:54 +0900 | From | Daisuke Nishimura <> | Subject | Re: Random freeze (Re: mmotm 2008-11-19-02-19 uploaded) |
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Hi.
On Fri, 21 Nov 2008 00:23:18 -0500, Valdis.Kletnieks@vt.edu wrote: > On Thu, 20 Nov 2008 15:20:54 PST, Andrew Morton said: > > > The traditional cause of the above trace is that someone mucked up the > > block/driver/irq-routing layer and we lost an IO completion. > > Yes, that would explain all the symptoms and tracebacks - everybody comes > to a screeching halt the next time they try to go to disk, while the actual > disk drive is showing zero activity. > > > It's also of course possible (but less common) that someone mucked up > > the VFS. It would be interesting to revert > > do_mpage_readpage-dont-submit-lots-of-small-bios-on-boundary.patch. > > I'm seeing an MTBF of about 2-3 hours when actually applying an I/O load to the > system. I'll try reverting that patch, and if it survives an entire day or > two it will be pretty strong circumstantial evidence that patch is the culprit... > Just FYI, I had seen similar errors with recent mmotms, but current mmotm(2008-11-20-17-03) seems more stable in my environment.
Thanks, Daisuke Nishimura.
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