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[Bug 27492] BUG: unable to handle kernel NULL pointer dereference, on hi

To: xfs-masters@xxxxxxxxxxx
Subject: [Bug 27492] BUG: unable to handle kernel NULL pointer dereference, on high filesystem io
From: bugzilla-daemon@xxxxxxxxxxxxxxxxxxx
Date: Sun, 6 Feb 2011 19:33:28 GMT
Auto-submitted: auto-generated
In-reply-to: <bug-27492-470@xxxxxxxxxxxxxxxxxxxxxxxxx/>
References: <bug-27492-470@xxxxxxxxxxxxxxxxxxxxxxxxx/>
https://bugzilla.kernel.org/show_bug.cgi?id=27492





--- Comment #11 from Jochen Buchholz <bookwood@xxxxxxxxxxx>  2011-02-06 
19:33:26 ---
vmap allocation for size 1048576 failed: use vmalloc=<size> to increase size.
vmap allocation for size 1048576 failed: use vmalloc=<size> to increase size.
vmap allocation for size 1048576 failed: use vmalloc=<size> to increase size.
The next fail:
xfs_buf_get: failed to map pages
Filesystem "dm-7": XFS internal error xfs_trans_cancel at line 1815 of file
fs/xfs/xfs_trans.c.  Caller 0xf09e4a01

Pid: 21091, comm: tar Not tainted 2.6.37 #1
Call Trace:
 [<f09c8bba>] xfs_error_report+0x2c/0x2e [xfs]
 [<f09e0d07>] xfs_trans_cancel+0x4b/0xc9 [xfs]
 [<f09e4a01>] ? xfs_create+0x48c/0x508 [xfs]
 [<f09e4a01>] xfs_create+0x48c/0x508 [xfs]
 [<f09edbb6>] xfs_vn_mknod+0xc8/0x153 [xfs]
 [<f09edc5a>] xfs_vn_create+0xa/0xc [xfs]
 [<c01c05d4>] vfs_create+0x85/0xcf
 [<c01c0c7b>] do_last+0x28a/0x50b
 [<c01c2469>] do_filp_open+0x1a7/0x47b
 [<c01aee8e>] ? free_pages_and_swap_cache+0x6a/0x7d
 [<c01b6b6e>] do_sys_open+0x44/0xbf
 [<c01b6c2b>] sys_open+0x1e/0x26
 [<c0102858>] sysenter_do_call+0x12/0x28
xfs_force_shutdown(dm-7,0x8) called from line 1816 of file fs/xfs/xfs_trans.c. 
Return address = 0xf09e0d1d
Filesystem "dm-7": Corruption of in-memory data detected.  Shutting down
filesystem: dm-7
Please umount the filesystem, and rectify the problem(s)
Filesystem "dm-7": xfs_log_force: error 5 returned.

gdb does fails like above. I read something about DEBUG_INFO which is not set.
I will recompile the kernel with that ops too.

root@ittest01:/usr/src/linux # zcat /proc/config.gz |grep KALLSYMS
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_EXTRA_PASS=y

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