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deadlocked xfs

To: xfs-oss <xfs@xxxxxxxxxxx>
Subject: deadlocked xfs
From: Eric Sandeen <sandeen@xxxxxxxxxxx>
Date: Thu, 10 Jul 2008 21:33:11 -0500
Sender: xfs-bounce@xxxxxxxxxxx
User-agent: Thunderbird (Macintosh/20080421)
while running fs_mark:

fs_mark -d /mnt/test -D 256 -n 100000 -t 4 -s 20480 -F -S 0

which runs 4 threads making 20k files,things got stuffed up in the log,
see sysrq-w output at:


2 threads down this path:

 [<ffffffffa03c89f5>] :xfs:xlog_state_get_iclog_space+0x83/0x187
 [<ffffffffa03c8c1a>] :xfs:xlog_write+0x121/0x486
 [<ffffffffa03c9043>] :xfs:xfs_log_write+0x2a/0x50

this is on a 4 cpu AMD.

I made the fs with:

mkfs.xfs -dsize=1t,agcount=32 -l lazy-count=1 -f /dev/sdb

and mounted with:

mount -o nobarrier,logbsize=256k,logbufs=8,inode64 /dev/sdb /mnt/test

has this been seen before?



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