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SubjectRe: [ANNOUNCE] 3.0.14-rt31
Date
Am Donnerstag 22 Dezember 2011 schrieb Steven Rostedt:
>
> Dear RT Folks,
>
> I'm pleased to announce the 3.0.14-rt31 stable release.


Filed as:
https://bugzilla.redhat.com/show_bug.cgi?id=773266

Happens while shutting down from KDE on VMWare.

[ INFO: possible recursive locking detected ]
3.0.14-1.rt31.1.fc16.ccrma.x86_64.rt #1
---------------------------------------------
krunner/2402 is trying to acquire lock:
(l3_key){+.+...}, at: [<ffffffff81133172>] ____cache_alloc+0xab/0x212
but task is already holding lock:
(l3_key){+.+...}, at: [<ffffffff811325ae>] __cache_free+0x145/0x1e8
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(l3_key);
lock(l3_key);
*** DEADLOCK ***
May be due to missing lock nesting notation
2 locks held by krunner/2402:
#0: (&per_cpu(slab_lock, __cpu).lock){+.+...}, at: [<ffffffff81131468>]
__local_lock_irq+0x26/0x79
#1: (l3_key){+.+...}, at: [<ffffffff811325ae>] __cache_free+0x145/0x1e8
stack backtrace:
Pid: 2402, comm: krunner Not tainted 3.0.14-1.rt31.1.fc16.ccrma.x86_64.rt #1
Call Trace:
[<ffffffff8108e8fe>] __lock_acquire+0x917/0xcf7
[<ffffffff814f20bd>] ? _raw_spin_unlock+0x41/0x4e
[<ffffffff814f0d54>] ? rt_spin_lock_slowlock+0x96/0x288
[<ffffffff8108bd5b>] ? look_up_lock_class+0x5f/0xc3
[<ffffffff81133172>] ? ____cache_alloc+0xab/0x212
[<ffffffff8108f1d4>] lock_acquire+0xf3/0x13e
[<ffffffff81133172>] ? ____cache_alloc+0xab/0x212
[<ffffffff814f157b>] rt_spin_lock+0x4f/0x56
[<ffffffff81133172>] ? ____cache_alloc+0xab/0x212
[<ffffffff8108e4d7>] ? __lock_acquire+0x4f0/0xcf7
[<ffffffff81133172>] ____cache_alloc+0xab/0x212
[<ffffffff81134351>] kmem_cache_alloc+0xbf/0x1b4
[<ffffffff812576db>] __debug_object_init+0x61/0x2e1
[<ffffffff8125796f>] debug_object_init+0x14/0x16
[<ffffffff8107725c>] rcuhead_fixup_activate+0x29/0xbb
[<ffffffff8125740e>] debug_object_fixup+0x1c/0x28
[<ffffffff81257a57>] debug_object_activate+0xcd/0xda
[<ffffffff81132868>] ? drain_freelist+0xfd/0xfd
[<ffffffff810c86d9>] __call_rcu+0x4f/0x197
[<ffffffff810c8836>] call_rcu+0x15/0x17
[<ffffffff811321cb>] slab_destroy+0x3a/0x64
[<ffffffff811322a8>] free_block+0xb3/0xea
[<ffffffff81132603>] __cache_free+0x19a/0x1e8
[<ffffffff81132110>] kmem_cache_free+0x84/0x105
[<ffffffff8111d445>] anon_vma_free+0x48/0x4d
[<ffffffff8111e467>] __put_anon_vma+0x38/0x3d
[<ffffffff8111e492>] put_anon_vma+0x26/0x2b
[<ffffffff8111e5b3>] unlink_anon_vmas+0xb9/0xed
[<ffffffff81113c4e>] free_pgtables+0x6c/0xcb
[<ffffffff8111a4e8>] exit_mmap+0xc7/0x100
[<ffffffff81058516>] mmput+0x60/0xdd
[<ffffffff8105eaab>] exit_mm+0x147/0x154
[<ffffffff8105ed2f>] do_exit+0x277/0x876
[<ffffffff8108f5de>] ? trace_hardirqs_on_caller+0x10b/0x12f
[<ffffffff814f1f9c>] ? _raw_spin_unlock_irqrestore+0x65/0x73
[<ffffffff8105f5ed>] do_group_exit+0x92/0xc0
[<ffffffff8105f632>] sys_exit_group+0x17/0x17
[<ffffffff814f7f42>] system_call_fastpath+0x16/0x1b


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