Messages in this thread | | | Subject | Re: Random freeze (Re: mmotm 2008-11-19-02-19 uploaded) | From | Valdis.Kletnieks@vt ... | Date | Fri, 21 Nov 2008 00:23:18 -0500 |
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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... [unhandled content-type:application/pgp-signature] | |