On Mon, 18 Apr 2011 07:07:11 +1000 NeilBrown <neilb@xxxxxxx> wrote: > On Sun, 17 Apr 2011 20:37:39 +0200 Bart Van Assche <bvanassche@xxxxxxx> wrote: > > > On Sun, Apr 17, 2011 at 7:03 PM, Linus Torvalds > > <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > > > On Sun, Apr 17, 2011 at 5:57 AM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: > > > > This message has been generated automatically as a part of a summary report > > > > of recent regressions. > > > > > > > > The following bug entry is on the current list of known regressions > > > > from 2.6.38. Please verify if it still should be listed and let the tracking team > > > > know (either way). > > > > > > > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=32982 > > > > Subject : Kernel locks up a few minutes after boot > > > > Submitter : Bart Van Assche <bart.vanassche@xxxxxxxxx> > > > > Date : 2011-04-10 19:55 (8 days old) > > > > > > Is this machine running a RAID5 setup or something like that? > > > > > > There is a known interaction with the new block layer plugging code > > > and MD. The "hung task" report in that bugzilla looks very much like > > > that issue. And you do have "root=/dev/md0", so clearly there's some > > > md thing going on. > > > > > > And bisecting might not work all that well for it, because I suspect > > > it ends up being very much a matter of IO patterns how it triggers. > > > > > > Neil supposedly has a patch for it, but I haven't seen it yet. Neil, Jens? > > > > (converted top-posting into bottom-posting) > > > > Hello Linus, > > > > On the system on which bug #32982 has been triggered md0, md1 and md2 > > have been configured as two-disk RAID1 (mirroring). > > If any of those have write-intent bitmaps then I definitely know what the > problem is and I'll be posting patches later today (probably not much later). > Actually it won't be today. The new block device plugging is still unusable for MD - so I won't be able to fix this until that gets sorted out. NeilBrown -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
