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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: Wed, 11 Dec 2013 12:03:52 +0000
Auto-submitted: auto-generated
Delivered-to: xfs-masters@xxxxxxxxxxx
In-reply-to: <bug-27492-470@xxxxxxxxxxxxxxxxxxxxxxxxx/>
References: <bug-27492-470@xxxxxxxxxxxxxxxxxxxxxxxxx/>
https://bugzilla.kernel.org/show_bug.cgi?id=27492

Alan <alan@xxxxxxxxxxxxxxxxxxx> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |alan@xxxxxxxxxxxxxxxxxxx
         Resolution|---                         |OBSOLETE

--- Comment #23 from Jochen Buchholz <bookwood@xxxxxxxxxxx> ---
(In reply to comment #22)
> Bug 27002 seems somewhat related to this one. A possible fix is included in
> 2.6.39-rc [1].
> 
> [1] http://www.spinics.net/lists/xfs/msg03913.html

This patch did not work on 32 bit systems: 
Jun  4 23:36:42 skywalker klogd: vmap allocation for size 1048576 failed: use
vmalloc=<size> to increase size.
Jun  4 23:36:42 skywalker last message repeated 2 times
Jun  4 23:36:42 skywalker klogd: XFS (dm-8): xfs_buf_get: failed to map pages
Jun  4 23:36:42 skywalker klogd: 
Jun  4 23:36:42 skywalker klogd: vmap allocation for size 1048576 failed: use
vmalloc=<size> to increase size.
Jun  4 23:36:42 skywalker last message repeated 2 times
Jun  4 23:36:42 skywalker klogd: XFS (dm-8): xfs_buf_get: failed to map pages
Jun  4 23:36:42 skywalker klogd: 
Jun  4 23:36:42 skywalker klogd: vmap allocation for size 1048576 failed: use
vmalloc=<size> to increase size.
Jun  4 23:36:42 skywalker last message repeated 2 times
Jun  4 23:36:42 skywalker klogd: XFS (dm-8): xfs_buf_get: failed to map pages
Jun  4 23:36:42 skywalker klogd: 
Jun  4 23:36:42 skywalker klogd: vmap allocation for size 1048576 failed: use
vmalloc=<size> to increase size.
Jun  4 23:36:42 skywalker klogd: XFS (dm-8): xfs_buf_get: failed to map pages
Jun  4 23:36:42 skywalker klogd: 
Jun  4 23:36:42 skywalker klogd: XFS (dm-8): xfs_buf_get: failed to map pages
Jun  4 23:36:42 skywalker klogd: 
Jun  4 23:36:42 skywalker klogd: XFS (dm-8): xfs_buf_get: failed to map pages
Jun  4 23:36:42 skywalker klogd: 
Jun  4 23:36:42 skywalker klogd: XFS (dm-8): xfs_buf_get: failed to map pages
Jun  4 23:36:42 skywalker klogd: 
Jun  4 23:36:42 skywalker klogd: XFS (dm-8): xfs_buf_get: failed to map pages
Jun  4 23:36:42 skywalker klogd: 
Jun  4 23:36:42 skywalker klogd: XFS (dm-8): xfs_buf_get: failed to map pages
Jun  4 23:36:42 skywalker klogd: 
Jun  4 23:36:42 skywalker klogd: XFS (dm-8): xfs_buf_get: failed to map pages
Jun  4 23:36:42 skywalker klogd: 
Jun  4 23:36:42 skywalker klogd: XFS (dm-8): xfs_buf_get: failed to map pages
Jun  4 23:36:42 skywalker klogd: 
Jun  4 23:36:42 skywalker klogd: XFS (dm-8): xfs_buf_get: failed to map pages
Jun  4 23:36:42 skywalker klogd: 
Jun  4 23:36:42 skywalker klogd: XFS (dm-8): xfs_buf_get: failed to map pages
Jun  4 23:36:42 skywalker klogd: 
Jun  4 23:36:42 skywalker klogd: XFS (dm-8): xfs_buf_get: failed to map pages
Jun  4 23:36:42 skywalker klogd: 
Jun  4 23:36:58 skywalker klogd: alloc_vmap_area: 32 callbacks suppressed
Jun  4 23:36:58 skywalker klogd: vmap allocation for size 1048576 failed: use
vmalloc=<size> to increase size.
Jun  4 23:36:58 skywalker last message repeated 2 times
Jun  4 23:36:58 skywalker klogd: XFS (dm-7): xfs_buf_get: failed to map pages
Jun  4 23:36:58 skywalker klogd: 
Jun  4 23:36:58 skywalker klogd: XFS (dm-7): Internal error xfs_trans_cancel at
line 1911 of file fs/xfs/xfs_trans.c.  Caller 0xf95d5c62
Jun  4 23:36:58 skywalker klogd: 
Jun  4 23:36:58 skywalker klogd: Pid: 2338, comm: mkdir Not tainted 2.6.39 #1
Jun  4 23:36:58 skywalker klogd: Call Trace:
Jun  4 23:36:58 skywalker klogd:  [<f95b9bcb>] xfs_error_report+0x27/0x2c [xfs]
Jun  4 23:36:58 skywalker klogd:  [<f95d5c62>] ? xfs_create+0x426/0x49e [xfs]
Jun  4 23:36:58 skywalker klogd:  [<f95d1f8c>] xfs_trans_cancel+0x4b/0xc9 [xfs]
Jun  4 23:36:58 skywalker klogd:  [<f95d5c62>] ? xfs_create+0x426/0x49e [xfs]
Jun  4 23:36:58 skywalker klogd:  [<f95d5c62>] xfs_create+0x426/0x49e [xfs]
Jun  4 23:36:58 skywalker klogd:  [<f95df1b7>] xfs_vn_mknod+0xc5/0x153 [xfs]
Jun  4 23:36:58 skywalker klogd:  [<f95df252>] xfs_vn_mkdir+0xd/0xf [xfs]
Jun  4 23:36:58 skywalker klogd:  [<c01c85a4>] vfs_mkdir+0x6b/0xba
Jun  4 23:36:58 skywalker klogd:  [<c01ca662>] sys_mkdirat+0x73/0xac
Jun  4 23:36:58 skywalker klogd:  [<c01a970a>] ? remove_vma+0x46/0x4c
Jun  4 23:36:58 skywalker klogd:  [<c01aa4cd>] ? do_munmap+0x217/0x231
Jun  4 23:36:58 skywalker klogd:  [<c01ca6ab>] sys_mkdir+0x10/0x12
Jun  4 23:36:58 skywalker klogd:  [<c0411bcc>] sysenter_do_call+0x12/0x22
Jun  4 23:36:58 skywalker klogd: XFS (dm-7): xfs_do_force_shutdown(0x8) called
from line 1912 of file fs/xfs/xfs_trans.c.  Return address = 0xf95d1fa2
Jun  4 23:36:58 skywalker klogd: XFS (dm-7): Corruption of in-memory data
detected.  Shutting down filesystem
Jun  4 23:36:58 skywalker klogd: XFS (dm-7): Please umount the filesystem and
rectify the problem(s)

--- Comment #24 from Alan <alan@xxxxxxxxxxxxxxxxxxx> ---


Closing as obsolete, if this is still seen on modern kernels please update

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