[xfs-masters] [Bug 410] Kernel (2.6.11) deadlock in user mode when writing data through mmap on large files (64-bit systems on xfs)

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http://oss.sgi.com/bugzilla/show_bug.cgi?id=410





------- Additional Comments From nexus@xxxxxxxxxx  2006-04-09 03:37 CST -------
I've experienced this problem also:
Apr  8 20:13:12 archon XFS: possible memory allocation deadlock in kmem_alloc
(mode:0x250)
Apr  8 20:13:14 archon XFS: possible memory allocation deadlock in kmem_alloc
(mode:0x250)
Apr  8 20:13:16 archon XFS: possible memory allocation deadlock in kmem_alloc
(mode:0x250)
Apr  8 20:13:18 archon XFS: possible memory allocation deadlock in kmem_alloc
(mode:0x250)
Apr  8 20:13:20 archon XFS: possible memory allocation deadlock in kmem_alloc
(mode:0x250)

and so on in my syslog... system was stalled until I rebooted.
# uname -a 
Linux archon 2.6.16 #3 SMP Mon Mar 27 19:03:27 CEST 2006 x86_64 AMD Athlon(tm)
64 X2 Dual Core Processor 4400+ AuthenticAMD GNU/Linux

with 2GB of RAM
the system was under heavy stress (tar -cvjf over about 200GB of data, thousands
of directories and files)

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