2.6.19-rc1: INFO: possible recursive locking detected

2.6.19-rc1: INFO: possible recursive locking detected

[Tilman Schmidt]

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I still get the following, apparently ReiserFS related lockdep message
shortly after boot on:
ts@gx110:~> uname -a
Linux gx110 2.6.19-rc1-noinitrd #2 PREEMPT Sat Oct 7 01:03:48 CEST 2006 i686 i686 i386 GNU/Linux
with the root filesystem being ReiserFS v3.

Oct  7 21:16:42 gx110 kernel: [  217.130153]
Oct  7 21:16:42 gx110 kernel: [  217.130159] =============================================
Oct  7 21:16:42 gx110 kernel: [  217.130185] [ INFO: possible recursive locking detected ]
Oct  7 21:16:42 gx110 kernel: [  217.130195] 2.6.19-rc1-noinitrd #2
Oct  7 21:16:42 gx110 kernel: [  217.130202] ---------------------------------------------
Oct  7 21:16:42 gx110 kernel: [  217.130211] kdm/3270 is trying to acquire lock:
Oct  7 21:16:42 gx110 kernel: [  217.130221]  (&inode->i_mutex){--..}, at: [<c0340702>] mutex_lock+0x1c/0x1f
Oct  7 21:16:42 gx110 kernel: [  217.130267]
Oct  7 21:16:42 gx110 kernel: [  217.130269] but task is already holding lock:
Oct  7 21:16:42 gx110 kernel: [  217.130277]  (&inode->i_mutex){--..}, at: [<c0340702>] mutex_lock+0x1c/0x1f
Oct  7 21:16:42 gx110 kernel: [  217.130296]
Oct  7 21:16:42 gx110 kernel: [  217.130298] other info that might help us debug this:
Oct  7 21:16:42 gx110 kernel: [  217.130308] 3 locks held by kdm/3270:
Oct  7 21:16:42 gx110 kernel: [  217.130315]  #0:  (&inode->i_mutex){--..}, at: [<c0340702>] mutex_lock+0x1c/0x1f
Oct  7 21:16:42 gx110 kernel: [  217.130335]  #1:  (&REISERFS_I(inode)->xattr_sem){----}, at: [<c01bc851>] reiserfs_acl_chmod+0xe1/0x180
Oct  7 21:16:42 gx110 kernel: [  217.130373]  #2:  (&REISERFS_SB(s)->xattr_dir_sem){----}, at: [<c01bc886>] reiserfs_acl_chmod+0x116/0x180
Oct  7 21:16:42 gx110 kernel: [  217.130395]
Oct  7 21:16:42 gx110 kernel: [  217.130398] stack backtrace:
Oct  7 21:16:43 gx110 kernel: [  217.130691]  [<c0103ccc>] dump_trace+0x64/0x1c9
Oct  7 21:16:43 gx110 kernel: [  217.130745]  [<c0103e43>] show_trace_log_lvl+0x12/0x25
Oct  7 21:16:43 gx110 kernel: [  217.130790]  [<c010411f>] show_trace+0xd/0x10
Oct  7 21:16:43 gx110 kernel: [  217.130834]  [<c0104139>] dump_stack+0x17/0x19
Oct  7 21:16:43 gx110 kernel: [  217.130878]  [<c012e40c>] __lock_acquire+0x74f/0x9ac
Oct  7 21:16:43 gx110 kernel: [  217.131127]  [<c012e8eb>] lock_acquire+0x4a/0x6b
Oct  7 21:16:43 gx110 kernel: [  217.131428]  [<c034057f>] __mutex_lock_slowpath+0xa7/0x20e
Oct  7 21:16:43 gx110 kernel: [  217.131662]  [<c0340702>] mutex_lock+0x1c/0x1f
Oct  7 21:16:43 gx110 kernel: [  217.131890]  [<c01bb8f2>] reiserfs_xattr_set+0xda/0x2b0
Oct  7 21:16:43 gx110 kernel: [  217.132744]  [<c01bc2f1>] reiserfs_set_acl+0x184/0x1fd
Oct  7 21:16:43 gx110 kernel: [  217.133394]  [<c01bc894>] reiserfs_acl_chmod+0x124/0x180
Oct  7 21:16:43 gx110 kernel: [  217.134035]  [<c019e41b>] reiserfs_setattr+0x20b/0x243
Oct  7 21:16:43 gx110 kernel: [  217.134622]  [<c016f23d>] notify_change+0x135/0x2bc
Oct  7 21:16:43 gx110 kernel: [  217.135090]  [<c015bcb1>] sys_fchmodat+0x9f/0xc6
Oct  7 21:16:43 gx110 kernel: [  217.135498]  [<c015bcea>] sys_chmod+0x12/0x14
Oct  7 21:16:43 gx110 kernel: [  217.135888]  [<c0102d1d>] sysenter_past_esp+0x56/0x8d
Oct  7 21:16:43 gx110 kernel: [  217.135934] DWARF2 unwinder stuck at sysenter_past_esp+0x56/0x8d
Oct  7 21:16:43 gx110 kernel: [  217.135950]
Oct  7 21:16:43 gx110 kernel: [  217.135963] Leftover inexact backtrace:
Oct  7 21:16:43 gx110 kernel: [  217.135966]
Oct  7 21:16:43 gx110 kernel: [  217.135988]  =======================

HTH

-- 
Tilman Schmidt                          E-Mail: tilman@imap.cc
Bonn, Germany
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