Sorry for the delay in responding to this. On Thu, 2012-05-24 at 10:11 -0400, Micah Anderson wrote: > Package: linux-2.6 > Version: 3.2.15-1~bpo60+1 > Severity: normal > > *** Please type your report below this line *** > > We are experiencing periodic lock-ups since upgrading to the latest backport > kernel. What was the previous version used? > Its happened two nights in a row now, and previously happened two days > before. The machine is a relatively heavily I/O loaded backup server. > > Please find below the last two serial console outputs captured after > the machine was hung. [...] There is apparently some kind of deadlock in the high-resolution timer subsystem (hrtimer). There have been subsequent changes to hrtimer in both mainline which were also applied to the 3.2.y series. Although they were motivated by the problems with leap second handling, it's possible that they would also address this bug. Have you tried later kernel versions and has this continued to happen? Ben. -- Ben Hutchings Make three consecutive correct guesses and you will be considered an expert.
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