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3.5.0-rc5: inconsistent lock state

To: xfs@xxxxxxxxxxx
Subject: 3.5.0-rc5: inconsistent lock state
From: Christian Kujau <lists@xxxxxxxxxxxxxxx>
Date: Wed, 4 Jul 2012 12:13:32 -0700 (PDT)
User-agent: Alpine 2.01 (DEB 1266 2009-07-14)
Hi,

this powerpc machine is running 3.5.0-rc5 for 2 days now and this happened 
today:

=================================
[ INFO: inconsistent lock state ]
3.5.0-rc5-00003-gca24a14-dirty #1 Not tainted
---------------------------------
inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-W} usage.
kswapd0/237 [HC0[0]:SC0[0]:HE1:SE1] takes:
 (xfs_iolock_reclaimable){+.+.?.}, at: [<c01d0a24>] xfs_ilock+0x84/0xc0
{RECLAIM_FS-ON-W} state was registered at:
  [<c00766e8>] lockdep_trace_alloc+0xac/0xe4
  [<c00d33e0>] kmem_cache_alloc+0x3c/0x134
  [<c01e25dc>] kmem_zone_alloc+0xa4/0x114
  [<c01e2668>] kmem_zone_zalloc+0x1c/0x58
  [<c0221ca4>] _xfs_trans_alloc+0x40/0x84
  [<c0222a0c>] xfs_trans_alloc+0xa0/0xbc
  [<c01e7148>] xfs_attr_inactive+0x5c/0x1a4
  [<c01e19d8>] xfs_inactive_attrs+0x58/0x10c
  [<c01e1c74>] xfs_inactive+0x1e8/0x440
  [<c01da5e4>] xfs_fs_evict_inode+0x98/0xac
  [<c00f5a90>] evict+0xc8/0x1b0
  [<c00f20d0>] d_delete+0x1cc/0x1f8
  [<c00e8100>] vfs_rmdir+0x138/0x13c
  [<c00e8220>] do_rmdir+0x11c/0x12c
  [<c00117e8>] ret_from_syscall+0x0/0x38
irq event stamp: 183359685
hardirqs last  enabled at (183359685): [<c0539f20>] 
_raw_spin_unlock_irqrestore+0x40/0x9c
hardirqs last disabled at (183359684): [<c053952c>] 
_raw_spin_lock_irqsave+0x30/0x84
softirqs last  enabled at (183358622): [<c000f3e8>] call_do_softirq+0x14/0x24
softirqs last disabled at (183358603): [<c000f3e8>] call_do_softirq+0x14/0x24


My mount options:

# grep xfs /proc/mounts 
/dev/mapper/wdc1 /mnt/media xfs rw,nosuid,nodev,noexec,relatime,attr2,noquota 0 0
/dev/mapper/sam0 /mnt/vault0 xfs ro,nosuid,nodev,noexec,relatime,attr2,noquota 
0 0
/dev/mapper/sam1 /mnt/vault1 xfs ro,nosuid,nodev,noexec,relatime,attr2,noquota 
0 0

The whole dmesg & .config is here: 

  http://nerdbynature.de/bits/3.5.0-rc5/soft_lockup/xfs/

Note: the -dirty flag in the kernel version comes from a single patch 
applied so that the system would boot: https://lkml.org/lkml/2012/7/2/32

Thanks,
Christian.
-- 
BOFH excuse #339:

manager in the cable duct

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