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SubjectRe: [PATCH] Re:[2.6.19-rc4] "possible recursive locking detected" in reiserfs_xattr_set
Am 06.11.2006 10:18 schrieb Srinivasa Ds:
> This patch should solve your problem.

'fraid it doesn't. It just changes the message to:

Nov 6 19:47:51 gx110 kernel: [ 135.987220]
Nov 6 19:47:51 gx110 kernel: [ 135.987226] =======================================================
Nov 6 19:47:51 gx110 kernel: [ 135.987250] [ INFO: possible circular locking dependency detected ]
Nov 6 19:47:51 gx110 kernel: [ 135.987261] 2.6.19-rc4-noinitrd #2
Nov 6 19:47:51 gx110 kernel: [ 135.987268] -------------------------------------------------------
Nov 6 19:47:51 gx110 kernel: [ 135.987278] kdm/3244 is trying to acquire lock:
Nov 6 19:47:51 gx110 kernel: [ 135.987288] (&inode->i_mutex){--..}, at: [<c035aced>] mutex_lock+0x1c/0x1f
Nov 6 19:47:51 gx110 kernel: [ 135.987324]
Nov 6 19:47:51 gx110 kernel: [ 135.987326] but task is already holding lock:
Nov 6 19:47:51 gx110 kernel: [ 135.987334] (&REISERFS_SB(s)->xattr_dir_sem){----}, at: [<c01c398e>] reiserfs_acl_chmod+0x116/0x180
Nov 6 19:47:51 gx110 kernel: [ 135.987374]
Nov 6 19:47:51 gx110 kernel: [ 135.987376] which lock already depends on the new lock.
Nov 6 19:47:51 gx110 kernel: [ 135.987380]
Nov 6 19:47:51 gx110 kernel: [ 135.987389]
Nov 6 19:47:51 gx110 kernel: [ 135.987391] the existing dependency chain (in reverse order) is:
Nov 6 19:47:51 gx110 kernel: [ 135.987400]
Nov 6 19:47:51 gx110 kernel: [ 135.987402] -> #2 (&REISERFS_SB(s)->xattr_dir_sem){----}:
Nov 6 19:47:51 gx110 kernel: [ 135.987417] [<c012fcb7>] add_lock_to_list+0x62/0x7e
Nov 6 19:47:51 gx110 kernel: [ 135.987446] [<c0130577>] __lock_acquire+0x8a4/0x99c
Nov 6 19:47:51 gx110 kernel: [ 135.987467] [<c0130930>] lock_acquire+0x5b/0x7b
Nov 6 19:47:51 gx110 kernel: [ 135.987487] [<c012c8c5>] down_read+0x3a/0x4b
Nov 6 19:47:51 gx110 kernel: [ 135.987526] [<c01c381c>] reiserfs_cache_default_acl+0x43/0x9f
Nov 6 19:47:51 gx110 kernel: [ 135.987548] [<c01a2824>] reiserfs_create+0x68/0x1e3
Nov 6 19:47:51 gx110 kernel: [ 135.987573] [<c016a559>] vfs_create+0xd1/0x149
Nov 6 19:47:51 gx110 kernel: [ 135.987669] [<c016a738>] open_namei+0x167/0x57f
Nov 6 19:47:51 gx110 kernel: [ 135.987696] [<c0160ba4>] do_filp_open+0x26/0x3b
Nov 6 19:47:51 gx110 kernel: [ 135.987727] [<c0160cc3>] do_sys_open+0x43/0xc2
Nov 6 19:47:51 gx110 kernel: [ 135.987754] [<c0160d79>] sys_open+0x1a/0x1c
Nov 6 19:47:51 gx110 kernel: [ 135.987780] [<c0102dfd>] sysenter_past_esp+0x56/0x8d
Nov 6 19:47:51 gx110 kernel: [ 135.987812] [<ffffffff>] 0xffffffff
Nov 6 19:47:51 gx110 kernel: [ 135.987863]
Nov 6 19:47:51 gx110 kernel: [ 135.987865] -> #1 (&REISERFS_I(inode)->xattr_sem){----}:
Nov 6 19:47:51 gx110 kernel: [ 135.987893] [<c012fcb7>] add_lock_to_list+0x62/0x7e
Nov 6 19:47:51 gx110 kernel: [ 135.987921] [<c0130577>] __lock_acquire+0x8a4/0x99c
Nov 6 19:47:51 gx110 kernel: [ 135.987948] [<c0130930>] lock_acquire+0x5b/0x7b
Nov 6 19:47:51 gx110 kernel: [ 135.987975] [<c012c8c5>] down_read+0x3a/0x4b
Nov 6 19:47:51 gx110 kernel: [ 135.988003] [<c01c3806>] reiserfs_cache_default_acl+0x2d/0x9f
Nov 6 19:47:51 gx110 kernel: [ 135.988032] [<c01a2824>] reiserfs_create+0x68/0x1e3
Nov 6 19:47:51 gx110 kernel: [ 135.988059] [<c016a559>] vfs_create+0xd1/0x149
Nov 6 19:47:51 gx110 kernel: [ 135.988086] [<c016a738>] open_namei+0x167/0x57f
Nov 6 19:47:51 gx110 kernel: [ 135.988113] [<c0160ba4>] do_filp_open+0x26/0x3b
Nov 6 19:47:51 gx110 kernel: [ 135.988140] [<c0160cc3>] do_sys_open+0x43/0xc2
Nov 6 19:47:51 gx110 kernel: [ 135.988167] [<c0160d79>] sys_open+0x1a/0x1c
Nov 6 19:47:51 gx110 kernel: [ 135.988193] [<c0102dfd>] sysenter_past_esp+0x56/0x8d
Nov 6 19:47:51 gx110 kernel: [ 135.988220] [<ffffffff>] 0xffffffff
Nov 6 19:47:51 gx110 kernel: [ 135.988307]
Nov 6 19:47:51 gx110 kernel: [ 135.988309] -> #0 (&inode->i_mutex){--..}:
Nov 6 19:47:51 gx110 kernel: [ 135.988336] [<c012fc1f>] print_circular_bug_tail+0x30/0x66
Nov 6 19:47:51 gx110 kernel: [ 135.988364] [<c0130476>] __lock_acquire+0x7a3/0x99c
Nov 6 19:47:51 gx110 kernel: [ 135.988392] [<c0130930>] lock_acquire+0x5b/0x7b
Nov 6 19:47:51 gx110 kernel: [ 135.988419] [<c035ab5d>] __mutex_lock_slowpath+0xc6/0x23a
Nov 6 19:47:51 gx110 kernel: [ 135.988448] [<c035aced>] mutex_lock+0x1c/0x1f
Nov 6 19:47:52 gx110 kernel: [ 135.988474] [<c01c29cd>] reiserfs_xattr_set+0xe4/0x2bf
Nov 6 19:47:52 gx110 kernel: [ 135.988503] [<c01c33f7>] reiserfs_set_acl+0x18d/0x204
Nov 6 19:47:52 gx110 kernel: [ 135.988532] [<c01c399c>] reiserfs_acl_chmod+0x124/0x180
Nov 6 19:47:52 gx110 kernel: [ 135.988561] [<c01a3c49>] reiserfs_setattr+0x20b/0x243
Nov 6 19:47:52 gx110 kernel: [ 135.988590] [<c0173963>] notify_change+0x135/0x2c2
Nov 6 19:47:52 gx110 kernel: [ 135.988631] [<c015fbbf>] sys_fchmodat+0xa5/0xcf
Nov 6 19:47:52 gx110 kernel: [ 135.988658] [<c015fc0a>] sys_chmod+0x21/0x23
Nov 6 19:47:52 gx110 kernel: [ 135.988684] [<c0102dfd>] sysenter_past_esp+0x56/0x8d
Nov 6 19:47:52 gx110 kernel: [ 135.988712] [<ffffffff>] 0xffffffff
Nov 6 19:47:52 gx110 kernel: [ 135.988739]
Nov 6 19:47:52 gx110 kernel: [ 135.988741] other info that might help us debug this:
Nov 6 19:47:52 gx110 kernel: [ 135.988745]
Nov 6 19:47:52 gx110 kernel: [ 135.988776] 3 locks held by kdm/3244:
Nov 6 19:47:52 gx110 kernel: [ 135.988790] #0: (&inode->i_mutex/1){--..}, at: [<c015fb8b>] sys_fchmodat+0x71/0xcf
Nov 6 19:47:52 gx110 kernel: [ 135.988819] #1: (&REISERFS_I(inode)->xattr_sem){----}, at: [<c01c3959>] reiserfs_acl_chmod+0xe1/0x180
Nov 6 19:47:52 gx110 kernel: [ 135.988849] #2: (&REISERFS_SB(s)->xattr_dir_sem){----}, at: [<c01c398e>] reiserfs_acl_chmod+0x116/0x180
Nov 6 19:47:52 gx110 kernel: [ 135.988879]
Nov 6 19:47:52 gx110 kernel: [ 135.988881] stack backtrace:
Nov 6 19:47:52 gx110 kernel: [ 135.988908] [<c0103dc4>] dump_trace+0x64/0x1cc
Nov 6 19:47:52 gx110 kernel: [ 135.988936] [<c0103f45>] show_trace_log_lvl+0x19/0x2e
Nov 6 19:47:52 gx110 kernel: [ 135.988960] [<c01042a2>] show_trace+0x12/0x14
Nov 6 19:47:52 gx110 kernel: [ 135.988983] [<c01042bb>] dump_stack+0x17/0x19
Nov 6 19:47:52 gx110 kernel: [ 135.989006] [<c012fc4c>] print_circular_bug_tail+0x5d/0x66
Nov 6 19:47:52 gx110 kernel: [ 135.989029] [<c0130476>] __lock_acquire+0x7a3/0x99c
Nov 6 19:47:52 gx110 kernel: [ 135.989052] [<c0130930>] lock_acquire+0x5b/0x7b
Nov 6 19:47:52 gx110 kernel: [ 135.989074] [<c035ab5d>] __mutex_lock_slowpath+0xc6/0x23a
Nov 6 19:47:52 gx110 kernel: [ 135.989097] [<c035aced>] mutex_lock+0x1c/0x1f
Nov 6 19:47:52 gx110 kernel: [ 135.989119] [<c01c29cd>] reiserfs_xattr_set+0xe4/0x2bf
Nov 6 19:47:52 gx110 kernel: [ 135.989143] [<c01c33f7>] reiserfs_set_acl+0x18d/0x204
Nov 6 19:47:52 gx110 kernel: [ 135.989167] [<c01c399c>] reiserfs_acl_chmod+0x124/0x180
Nov 6 19:47:52 gx110 kernel: [ 135.989190] [<c01a3c49>] reiserfs_setattr+0x20b/0x243
Nov 6 19:47:52 gx110 kernel: [ 135.989214] [<c0173963>] notify_change+0x135/0x2c2
Nov 6 19:47:52 gx110 kernel: [ 135.989237] [<c015fbbf>] sys_fchmodat+0xa5/0xcf
Nov 6 19:47:52 gx110 kernel: [ 135.989259] [<c015fc0a>] sys_chmod+0x21/0x23
Nov 6 19:47:52 gx110 kernel: [ 135.989280] [<c0102dfd>] sysenter_past_esp+0x56/0x8d
Nov 6 19:47:52 gx110 kernel: [ 135.989306] DWARF2 unwinder stuck at sysenter_past_esp+0x56/0x8d
Nov 6 19:47:52 gx110 kernel: [ 135.989322]
Nov 6 19:47:52 gx110 kernel: [ 135.989334] Leftover inexact backtrace:
Nov 6 19:47:52 gx110 kernel: [ 135.989338]
Nov 6 19:47:52 gx110 kernel: [ 135.989359] =======================
Thanks
Tilman

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