Messages in this thread |  | | | Date | Wed, 7 Jun 2006 21:27:19 -0700 | | From | "Miles Lane" <> | | Subject | 2.6.17-rc6-mm1 -- BUG: possible circular locking deadlock detected! |
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===================================================== [ BUG: possible circular locking deadlock detected! ] ----------------------------------------------------- mount/1219 is trying to acquire lock: (&ni->mrec_lock){--..}, at: [<c031e4b8>] mutex_lock+0x21/0x24 but task is already holding lock: (&rl->lock){----}, at: [<f8a98e4d>] ntfs_map_runlist+0x2a/0xb5 [ntfs] which lock already depends on the new lock, which could lead to circular deadlocks!
the existing dependency chain (in reverse order) is:
-> #1 (&rl->lock){----}: [<c012ec64>] lock_acquire+0x58/0x74 [<f8a97619>] ntfs_readpage+0x362/0x8fd [ntfs] [<c01415b0>] read_cache_page+0x8c/0x137 [<f8a9eeb8>] map_mft_record+0xd7/0x1d2 [ntfs] [<f8a9d661>] ntfs_read_locked_inode+0x74/0xea9 [ntfs] [<f8a9eabb>] ntfs_read_inode_mount+0x625/0x846 [ntfs] [<f8aa2ff8>] ntfs_fill_super+0x8ca/0xd14 [ntfs] [<c01647c4>] get_sb_bdev+0xed/0x14e [<f8aa15ef>] ntfs_get_sb+0x10/0x12 [ntfs] [<c0163c11>] vfs_kern_mount+0x76/0x143 [<c0163d17>] do_kern_mount+0x29/0x3d [<c0177f9f>] do_mount+0x78a/0x7e4 [<c0178058>] sys_mount+0x5f/0x91 [<c031fb5d>] sysenter_past_esp+0x56/0x8d -> #0 (&ni->mrec_lock){--..}: [<c012ec64>] lock_acquire+0x58/0x74 [<c031e321>] __mutex_lock_slowpath+0xa7/0x21d [<c031e4b8>] mutex_lock+0x21/0x24 [<f8a9edfa>] map_mft_record+0x19/0x1d2 [ntfs] [<f8a98630>] ntfs_map_runlist_nolock+0x48/0x437 [ntfs] [<f8a98eaa>] ntfs_map_runlist+0x87/0xb5 [ntfs] [<f8a97739>] ntfs_readpage+0x482/0x8fd [ntfs] [<c01415b0>] read_cache_page+0x8c/0x137 [<f8aa20bc>] load_system_files+0x155/0x7c7 [ntfs] [<f8aa30a7>] ntfs_fill_super+0x979/0xd14 [ntfs] [<c01647c4>] get_sb_bdev+0xed/0x14e [<f8aa15ef>] ntfs_get_sb+0x10/0x12 [ntfs] [<c0163c11>] vfs_kern_mount+0x76/0x143 [<c0163d17>] do_kern_mount+0x29/0x3d [<c0177f9f>] do_mount+0x78a/0x7e4 [<c0178058>] sys_mount+0x5f/0x91 [<c031fb5d>] sysenter_past_esp+0x56/0x8d other info that might help us debug this:
2 locks held by mount/1219: #0: (&s->s_umount#18){--..}, at: [<c0164443>] sget+0x223/0x3a1 #1: (&rl->lock){----}, at: [<f8a98e4d>] ntfs_map_runlist+0x2a/0xb5 [ntfs] stack backtrace: [<c0103924>] show_trace_log_lvl+0x54/0xfd [<c01049a9>] show_trace+0xd/0x10 [<c01049c3>] dump_stack+0x17/0x1c [<c012cefb>] print_circular_bug_tail+0x59/0x64 [<c012e766>] __lock_acquire+0x7c2/0x97a [<c012ec64>] lock_acquire+0x58/0x74 [<c031e321>] __mutex_lock_slowpath+0xa7/0x21d [<c031e4b8>] mutex_lock+0x21/0x24 [<f8a9edfa>] map_mft_record+0x19/0x1d2 [ntfs] [<f8a98630>] ntfs_map_runlist_nolock+0x48/0x437 [ntfs] [<f8a98eaa>] ntfs_map_runlist+0x87/0xb5 [ntfs] [<f8a97739>] ntfs_readpage+0x482/0x8fd [ntfs] [<c01415b0>] read_cache_page+0x8c/0x137 [<f8aa20bc>] load_system_files+0x155/0x7c7 [ntfs] [<f8aa30a7>] ntfs_fill_super+0x979/0xd14 [ntfs] [<c01647c4>] get_sb_bdev+0xed/0x14e [<f8aa15ef>] ntfs_get_sb+0x10/0x12 [ntfs] [<c0163c11>] vfs_kern_mount+0x76/0x143 [<c0163d17>] do_kern_mount+0x29/0x3d [<c0177f9f>] do_mount+0x78a/0x7e4 [<c0178058>] sys_mount+0x5f/0x91 [<c031fb5d>] sysenter_past_esp+0x56/0x8d NTFS volume version 3.1. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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