From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 15231] New: BUG: soft lockup - CPU#3 stuck for 61s
Date: Fri, 5 Feb 2010 09:38:19 GMT
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http://bugzilla.kernel.org/show_bug.cgi?id=15231

           Summary: BUG: soft lockup - CPU#3 stuck for 61s
           Product: File System
           Version: 2.5
    Kernel Version: 2.6.32.7
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: ext4
        AssignedTo: fs_ext4@kernel-bugs.osdl.org
        ReportedBy: franco@fugro-fsi.com.au
        Regression: No


We recently deployed 9 NFS servers running Linux kernel 2.6.32.7. Each server
exports 4 13TB EXT4 filesystems. During the first 24 hous of testing using
simple sequential reads and writes, 2 of the 9 systems hung with "BUG: soft
lockup - CPU#3 stuck for 61s".

We downgraded the kernel version to 2.6.32.2 and have not had the same problem
after a further 24 hours of testing.

Message file attached.

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