Messages in this thread | | | Date | Thu, 28 Feb 2008 16:07:55 +0100 (CET) | From | Stefan Richter <> | Subject | hfsplus_unlink...hfsplus_block_free: lockdep warning |
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Hi,
I got this with 2.6.25-rc3 when doing an rm -rf on a HFS+ filesystem:
[ INFO: possible recursive locking detected ] 2.6.25-rc3 #6 --------------------------------------------- rm/7564 is trying to acquire lock: (&sb->s_type->i_mutex_key#8){--..}, at: [<ffffffff880fc4ba>] hfsplus_block_free+0x57/0x209 [hfsplus]
but task is already holding lock: (&sb->s_type->i_mutex_key#8){--..}, at: [<ffffffff80284f1c>] vfs_unlink+0x41/0xb7
other info that might help us debug this: 2 locks held by rm/7564: #0: (&type->i_mutex_dir_key#5/1){--..}, at: [<ffffffff80286cac>] do_unlinkat+0x6c/0x154 #1: (&sb->s_type->i_mutex_key#8){--..}, at: [<ffffffff80284f1c>] vfs_unlink+0x41/0xb7
stack backtrace: Pid: 7564, comm: rm Not tainted 2.6.25-rc3 #6
Call Trace: [<ffffffff802497bb>] __lock_acquire+0x849/0xbd5 [<ffffffff880fc4ba>] :hfsplus:hfsplus_block_free+0x57/0x209 [<ffffffff80249efd>] lock_acquire+0x51/0x6c [<ffffffff880fc4ba>] :hfsplus:hfsplus_block_free+0x57/0x209 [<ffffffff80246b71>] debug_mutex_lock_common+0x16/0x23 [<ffffffff80418eb0>] mutex_lock_nested+0xd9/0x268 [<ffffffff880fc4ba>] :hfsplus:hfsplus_block_free+0x57/0x209 [<ffffffff880f647f>] :hfsplus:hfsplus_free_extents+0x54/0x9b [<ffffffff880f6a92>] :hfsplus:hfsplus_file_truncate+0xa4/0x2ce [<ffffffff880f52de>] :hfsplus:hfsplus_delete_inode+0x57/0x5d [<ffffffff880f77e6>] :hfsplus:hfsplus_unlink+0xd0/0x158 [<ffffffff80284f36>] vfs_unlink+0x5b/0xb7 [<ffffffff80286cf1>] do_unlinkat+0xb1/0x154 [<ffffffff80419e4c>] trace_hardirqs_on_thunk+0x35/0x3a [<ffffffff80248b03>] trace_hardirqs_on+0xf3/0x117 [<ffffffff80419e4c>] trace_hardirqs_on_thunk+0x35/0x3a [<ffffffff880fb4a5>] :hfsplus:hfsplus_uni2asc+0x251/0x29f [<ffffffff8020b0bb>] system_call_after_swapgs+0x7b/0x80
Is this merely a case for annotation? -- Stefan Richter -=====-==--- --=- ===-- http://arcgraph.de/sr/
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