Messages in this thread |  | | | Date | Thu, 5 May 2011 22:45:28 -0400 | | Subject | Re: BUG: sleeping function called from invalid context at mm/slub.c:824 | | From | Miles Lane <> |
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On Thu, May 5, 2011 at 10:34 PM, Miles Lane <miles.lane@gmail.com> wrote: > BUG: sleeping function called from invalid context at mm/slub.c:824 > in_atomic(): 1, irqs_disabled(): 0, pid: 1632, name: cupsd > 2 locks held by cupsd/1632: > #0: (tasklist_lock){.+.+.+}, at: [<ffffffff8105bd3d>] do_prlimit+0x62/0x191 > #1: (&(&p->alloc_lock)->rlock){+.+.+.}, at: [<ffffffff8105bd70>] > do_prlimit+0x95/0x191 > Pid: 1632, comm: cupsd Not tainted 2.6.39-rc6-git2 #2 > Call Trace: > [<ffffffff8103bbc0>] __might_sleep+0x10d/0x112 > [<ffffffff810f9eba>] slab_pre_alloc_hook.clone.33+0x30/0x36 > [<ffffffff810fae17>] kmem_cache_alloc+0x22/0x12f > [<ffffffff81069af5>] prepare_creds+0x35/0xe4 > [<ffffffff811d51c2>] aa_replace_current_profile+0x37/0xad > [<ffffffff811d92b1>] aa_current_profile+0x42/0x4a > [<ffffffff811d92d4>] apparmor_task_setrlimit+0x1b/0x3d > [<ffffffff811d35bd>] security_task_setrlimit+0x11/0x13 > [<ffffffff8105bdb0>] do_prlimit+0xd5/0x191 > [<ffffffff8105c0f5>] sys_setrlimit+0x3e/0x47 > [<ffffffff8142f3d2>] system_call_fastpath+0x16/0x1b
Possibly related -- Got this during suspend in the same boot session:
[ 2476.176906] [ INFO: inconsistent lock state ] [ 2476.176915] 2.6.39-rc6-git2 #2 [ 2476.176921] --------------------------------- [ 2476.176928] inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-W} usage. [ 2476.176939] kswapd0/497 [HC0[0]:SC0[0]:HE1:SE1] takes: [ 2476.176947] (&(&p->alloc_lock)->rlock){+.+.?.}, at: [<ffffffff8106afaf>] refrigerator+0x23/0xd5 [ 2476.176969] {RECLAIM_FS-ON-W} state was registered at: [ 2476.176977] [<ffffffff810756ff>] mark_held_locks+0x50/0x72 [ 2476.176988] [<ffffffff81075df4>] lockdep_trace_alloc+0xa8/0xcc [ 2476.177000] [<ffffffff810f9ea2>] slab_pre_alloc_hook.clone.33+0x18/0x36 [ 2476.177013] [<ffffffff810fae17>] kmem_cache_alloc+0x22/0x12f [ 2476.177024] [<ffffffff81069af5>] prepare_creds+0x35/0xe4 [ 2476.177035] [<ffffffff811d51c2>] aa_replace_current_profile+0x37/0xad [ 2476.177049] [<ffffffff811d92b1>] aa_current_profile+0x42/0x4a [ 2476.177060] [<ffffffff811d92d4>] apparmor_task_setrlimit+0x1b/0x3d [ 2476.177072] [<ffffffff811d35bd>] security_task_setrlimit+0x11/0x13 [ 2476.177086] [<ffffffff8105bdb0>] do_prlimit+0xd5/0x191 [ 2476.177097] [<ffffffff8105c0f5>] sys_setrlimit+0x3e/0x47 [ 2476.177108] [<ffffffff8142f3d2>] system_call_fastpath+0x16/0x1b [ 2476.177122] irq event stamp: 35 [ 2476.177128] hardirqs last enabled at (35): [<ffffffff81429376>] _raw_spin_unlock_irqrestore+0x40/0x75 [ 2476.177145] hardirqs last disabled at (34): [<ffffffff81428e44>] _raw_spin_lock_irqsave+0x1a/0x57 [ 2476.177159] softirqs last enabled at (0): [<ffffffff8104588e>] copy_process+0x396/0x1236 [ 2476.177174] softirqs last disabled at (0): [< (null)>] (null) [ 2476.177186] [ 2476.177187] other info that might help us debug this: [ 2476.177196] no locks held by kswapd0/497. [ 2476.177202] [ 2476.177203] stack backtrace: [ 2476.177211] Pid: 497, comm: kswapd0 Not tainted 2.6.39-rc6-git2 #2 [ 2476.177220] Call Trace: [ 2476.177228] [<ffffffff8107548d>] valid_state+0x17e/0x190 [ 2476.177239] [<ffffffff81074c07>] ? print_irq_inversion_bug+0x12e/0x12e [ 2476.177250] [<ffffffff8107557e>] mark_lock+0xdf/0x210 [ 2476.177260] [<ffffffff81076c5c>] __lock_acquire+0x3db/0xdc7 [ 2476.177272] [<ffffffff8103c5eb>] ? finish_task_switch+0x42/0xa5 [ 2476.177283] [<ffffffff814293d6>] ? _raw_spin_unlock_irq+0x2b/0x5c [ 2476.177294] [<ffffffff8106afaf>] ? refrigerator+0x23/0xd5 [ 2476.177305] [<ffffffff81077bb7>] lock_acquire+0x109/0x133 [ 2476.177315] [<ffffffff8106afaf>] ? refrigerator+0x23/0xd5 [ 2476.177326] [<ffffffff8120fd1e>] ? do_raw_spin_lock+0x75/0x136 [ 2476.177337] [<ffffffff8120d51e>] ? hweight_long+0xa/0xb [ 2476.177348] [<ffffffff81428d71>] _raw_spin_lock+0x36/0x45 [ 2476.177358] [<ffffffff8106afaf>] ? refrigerator+0x23/0xd5 [ 2476.177369] [<ffffffff8106afaf>] refrigerator+0x23/0xd5 [ 2476.177380] [<ffffffff81063da5>] ? finish_wait+0x59/0x62 [ 2476.177391] [<ffffffff810d34b3>] try_to_freeze+0x28/0x2f [ 2476.177402] [<ffffffff810d58f1>] kswapd+0x2a6/0x872 [ 2476.177413] [<ffffffff8103e312>] ? get_parent_ip+0x11/0x41 [ 2476.177423] [<ffffffff8103c5eb>] ? finish_task_switch+0x42/0xa5 [ 2476.177434] [<ffffffff81063c59>] ? wake_up_bit+0x25/0x25 [ 2476.177445] [<ffffffff810d564b>] ? shrink_zone+0x41d/0x41d [ 2476.177455] [<ffffffff810636be>] kthread+0x9d/0xa5 [ 2476.177466] [<ffffffff81075860>] ? trace_hardirqs_on_caller+0x13f/0x172 [ 2476.177478] [<ffffffff81430564>] kernel_thread_helper+0x4/0x10 [ 2476.177488] [<ffffffff8103c5eb>] ? finish_task_switch+0x42/0xa5 [ 2476.177500] [<ffffffff814299d8>] ? retint_restore_args+0x13/0x13 [ 2476.177511] [<ffffffff81063621>] ? __init_kthread_worker+0x56/0x56 [ 2476.177522] [<ffffffff81430560>] ? gs_change+0x13/0x13 [ 2476.189975] (elapsed 0.01 seconds) done. [ 2476.190080] Suspending console(s) (use no_console_suspend to debug) -- 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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