Hi,
On 30/05/06, Andrew Morton <[email protected]> wrote:
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17-rc5/2.6.17-rc5-mm1/
I get this on 2.6.17-rc5-mm1 + hot fixes + Arjan's net/ipv4/igmp.c patch.
May 30 20:25:56 ltg01-fedora kernel:
May 30 20:25:56 ltg01-fedora kernel:
=====================================================
May 30 20:25:56 ltg01-fedora kernel: [ BUG: possible circular locking
deadlock detected! ]
May 30 20:25:56 ltg01-fedora kernel:
-----------------------------------------------------
May 30 20:25:56 ltg01-fedora kernel: umount/2322 is trying to acquire lock:
May 30 20:25:56 ltg01-fedora kernel: (sb_security_lock){--..}, at:
[<c01d6400>] selinux_sb_free_security+0x17/0x4e
May 30 20:25:56 ltg01-fedora kernel:
May 30 20:25:56 ltg01-fedora kernel: but task is already holding lock:
May 30 20:25:56 ltg01-fedora kernel: (sb_lock){--..}, at:
[<c0178a89>] put_super+0x10/0x24
May 30 20:25:56 ltg01-fedora kernel:
May 30 20:25:56 ltg01-fedora kernel: which lock already depends on the new lock,
May 30 20:25:56 ltg01-fedora kernel: which could lead to circular deadlocks!
May 30 20:25:56 ltg01-fedora kernel:
May 30 20:25:56 ltg01-fedora kernel: the existing dependency chain (in
reverse order) is:
May 30 20:25:56 ltg01-fedora kernel:
May 30 20:25:56 ltg01-fedora kernel: -> #1 (sb_lock){--..}:
May 30 20:25:56 ltg01-fedora kernel: [<c0139a56>]
lockdep_acquire+0x69/0x82
May 30 20:25:56 ltg01-fedora kernel: [<c02f2171>] _spin_lock+0x21/0x2f
May 30 20:25:56 ltg01-fedora kernel: [<c01d72de>]
selinux_complete_init+0x45/0xda
May 30 20:25:56 ltg01-fedora kernel: [<c01e0a4e>]
security_load_policy+0xb3/0x22d
May 30 20:25:56 ltg01-fedora kernel: [<c01da975>]
sel_write_load+0xa3/0x2a1
May 30 20:25:56 ltg01-fedora kernel: [<c0172e2a>] vfs_write+0xcd/0x179
May 30 20:25:56 ltg01-fedora kernel: [<c01734d3>] sys_write+0x3b/0x71
May 30 20:25:56 ltg01-fedora kernel: [<c02f2aa5>]
sysenter_past_esp+0x56/0x8d
May 30 20:25:56 ltg01-fedora kernel:
May 30 20:25:56 ltg01-fedora kernel: other info that might help us debug this:
May 30 20:25:56 ltg01-fedora kernel:
May 30 20:25:56 ltg01-fedora kernel: 1 locks held by umount/2322:
May 30 20:25:56 ltg01-fedora kernel: #0: (sb_lock){--..}, at:
[<c0178a89>] put_super+0x10/0x24
May 30 20:25:56 ltg01-fedora kernel:
May 30 20:25:56 ltg01-fedora kernel: stack backtrace:
May 30 20:25:56 ltg01-fedora kernel: [<c0103e52>] show_trace_log_lvl+0x4b/0xf4
May 30 20:25:56 ltg01-fedora kernel: [<c01044b3>] show_trace+0xd/0x10
May 30 20:25:56 ltg01-fedora kernel: [<c010457b>] dump_stack+0x19/0x1b
May 30 20:25:56 ltg01-fedora kernel: [<c0138bd6>]
print_circular_bug_tail+0x59/0x64
May 30 20:25:56 ltg01-fedora kernel: [<c0139429>] __lockdep_acquire+0x848/0xa39
May 30 20:25:56 ltg01-fedora kernel: [<c0139a56>] lockdep_acquire+0x69/0x82
May 30 20:25:56 ltg01-fedora kernel: [<c02f2171>] _spin_lock+0x21/0x2f
May 30 20:25:56 ltg01-fedora kernel: [<c01d6400>]
selinux_sb_free_security+0x17/0x4e
May 30 20:25:56 ltg01-fedora kernel: [<c0178a68>] __put_super+0x24/0x35
May 30 20:25:56 ltg01-fedora kernel: [<c0178a90>] put_super+0x17/0x24
May 30 20:25:56 ltg01-fedora kernel: [<c01793a3>] deactivate_super+0xa3/0xad
May 30 20:25:56 ltg01-fedora kernel: [<c018e010>] mntput_no_expire+0x52/0x85
May 30 20:25:56 ltg01-fedora kernel: [<c017fcb0>]
path_release_on_umount+0x15/0x18
May 30 20:25:56 ltg01-fedora kernel: [<c018f535>] sys_umount+0x292/0x2aa
May 30 20:25:56 ltg01-fedora kernel: [<c018f55a>] sys_oldumount+0xd/0xf
May 30 20:25:56 ltg01-fedora kernel: [<c02f2aa5>] sysenter_past_esp+0x56/0x8d
Here is config
http://www.stardust.webpages.pl/files/mm/2.6.17-rc5-mm1/mm-config2
Regards,
Michal
--
Michal K. K. Piotrowski
LTG - Linux Testers Group
(http://www.stardust.webpages.pl/ltg/wiki/)
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