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Message-ID: <472DDD78.7040002@msgid.tls.msk.ru> Date: Sun, 04 Nov 2007 17:55:52 +0300 From: Michael Tokarev <mjt@....msk.ru> To: Justin Piszcz <jpiszcz@...idpixels.com> CC: linux-kernel@...r.kernel.org, linux-raid@...r.kernel.org, xfs@....sgi.com Subject: Re: 2.6.23.1: mdadm/raid5 hung/d-state Justin Piszcz wrote: > On Sun, 4 Nov 2007, Michael Tokarev wrote: [] >> The next time you come across something like that, do a SysRq-T dump and >> post that. It shows a stack trace of all processes - and in particular, >> where exactly each task is stuck. > Yes I got it before I rebooted, ran that and then dmesg > file. > > Here it is: > > [1172609.665902] ffffffff80747dc0 ffffffff80747dc0 ffffffff80747dc0 ffffffff80744d80 > [1172609.668768] ffffffff80747dc0 ffff81015c3aa918 ffff810091c899b4 ffff810091c899a8 That's only partial list. All the kernel threads - which are most important in this context - aren't shown. You ran out of dmesg buffer, and the most interesting entries was at the beginning. If your /var/log partition is working, the stuff should be in /var/log/kern.log or equivalent. If it's not working, there is a way to capture the info still, by stopping syslogd, cat'ing /proc/kmsg to some tmpfs file and scp'ing it elsewhere. /mjt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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