On Mon, 2009-10-05 at 11:12 +0100, Berni Elbourn wrote: > Sorry but after running for weeks with no problems using this kernel: > > Linux version 2.6.26-2-amd64 (Debian 2.6.26-17lenny1) (dannf@debian.org) (gcc version 4.1.3 20080704 (prerelease) > (Debian 4.1.2-25)) #1 SMP Sun Jul 26 20:35:48 UTC 2009 > > On a Quad-Core AMD Opteron(tm) Processor 2372 HE stepping 02 > > I safe-upgrade'd on Friday to: > > Linux version 2.6.26-2-amd64 (Debian 2.6.26-19) (dannf@debian.org) (gcc version 4.1.3 20080704 (prerelease) (Debian > 4.1.2-25)) #1 SMP Wed Aug 19 22:33:18 UTC 20 > 09 > > On Saturday this happened... > > Oct 3 21:37:21 sv28 kernel: [249332.516721] INFO: task postdrop:26510 blocked for more than 120 seconds. > Oct 3 21:37:55 sv28 kernel: [249366.876742] INFO: task pickup:26511 blocked for more than 120 seconds. > Oct 3 21:39:29 sv28 kernel: [249461.364772] INFO: task postdrop:26510 blocked for more than 120 seconds. > Oct 3 21:39:51 sv28 kernel: [249482.840771] INFO: task kvm:4454 blocked for more than 120 seconds. > Oct 3 21:40:04 sv28 kernel: [249495.724775] INFO: task pickup:26511 blocked for more than 120 seconds. > Oct 3 21:41:38 sv28 kernel: [249590.216775] INFO: task postdrop:26510 blocked for more than 120 seconds. Please note that the 'task <name>:<pid> blocked for more than <time>' messages are *symptoms* and in no way indicate a particular bug. The more people add to this bug report, the less meaningful it becomes. > <snip> > > And by Monday the console was unresponsive, even to magic - sysrq. I am pretty sure the machine was not under any > stress at 9:30 on Saturday. No users, and backups start after 11pm. > > Is it possible the some fixes have dropped out of current releases? No. > I have reverted the kernel back to Linux version 2.6.26-2-amd64 (Debian 2.6.26-17lenny1) [...] You are falling for the fallacy: <http://en.wikipedia.org/wiki/Post_hoc_ergo_propter_hoc>. Please do not discourage people from installing security updates. Ben. -- Ben Hutchings I say we take off; nuke the site from orbit. It's the only way to be sure.
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