rendered paste body[ 306.421101] stopped custom tracer.
[ 306.421104]
[ 306.421105] =============================================
[ 306.428266] [ INFO: possible recursive locking detected ]
[ 306.433903] [ 2.6.23.1-rt5 #12
[ 306.437166] ---------------------------------------------
[ 306.442767] qemu-system-x86/4058 is trying to acquire lock:
[ 306.448552] ((struct rw_semaphore *)(&mm->mmap_sem)){----}, at: [<ffffffff881b72cb>] gfn_to_page+0x66/0x106 [kvm]
[ 306.459504]
[ 306.459504] but task is already holding lock:
[ 306.465545] ((struct rw_semaphore *)(&mm->mmap_sem)){----}, at: [<ffffffff8122c229>] do_page_fault+0x3cb/0x80a
[ 306.476127]
[ 306.476128] other info that might help us debug this:
[ 306.482930] 1 lock held by qemu-system-x86/4058:
[ 306.487734] #0: ((struct rw_semaphore *)(&mm->mmap_sem)){----}, at: [<ffffffff8122c229>] do_page_fault+0x3cb/0x80a
[ 306.498759]
[ 306.498760] stack backtrace:
[ 306.503311]
[ 306.503311] Call Trace:
[ 306.507371] [<ffffffff81054894>] __lock_acquire+0x1c5/0xc7e
[ 306.513240] [<ffffffff8105539e>] lock_acquire+0x51/0x6a
[ 306.518763] [<ffffffff881b72cb>] :kvm:gfn_to_page+0x66/0x106
[ 306.524708] [<ffffffff81059c16>] __rt_down_read+0x1f/0x5e
[ 306.530429] [<ffffffff881b72cb>] :kvm:gfn_to_page+0x66/0x106
[ 306.536413] [<ffffffff881ba4e1>] :kvm:kvm_vm_nopage+0x26/0x48
[ 306.542467] [<ffffffff81081e6b>] __do_fault+0x89/0x499
[ 306.547923] [<ffffffff81080edb>] inc_zone_page_state+0x53/0x5a
[ 306.554023] [<ffffffff8108587e>] handle_mm_fault+0x52b/0x9e3
[ 306.559928] [<ffffffff8122c229>] do_page_fault+0x3cb/0x80a
[ 306.565734] [<ffffffff8122c2da>] do_page_fault+0x47c/0x80a
[ 306.571450] [<ffffffff812290dd>] rt_spin_unlock+0x17/0x47
[ 306.577142] [<ffffffff8122a5ad>] error_exit+0x0/0x96
[ 306.582345] [<ffffffff81074361>] file_read_actor+0x2b/0x182
[ 306.588259] [<ffffffff810751c1>] do_generic_mapping_read+0x1a2/0x3f8
[ 306.594944] [<ffffffff81074336>] file_read_actor+0x0/0x182
[ 306.600694] [<ffffffff81076b84>] generic_file_aio_read+0x12c/0x16f
[ 306.607120] [<ffffffff8109ea64>] do_sync_read+0xcc/0x10f
[ 306.612773] [<ffffffff810f8fff>] inode_has_perm+0x65/0x72
[ 306.618418] [<ffffffff81049e28>] autoremove_wake_function+0x0/0x2e
[ 306.624931] [<ffffffff810f90a9>] file_has_perm+0x9d/0xac
[ 306.630421] [<ffffffff8109f338>] vfs_read+0xd4/0x185
[ 306.635640] [<ffffffff8109f758>] sys_read+0x48/0x74
[ 306.640819] [<ffffffff8100bef7>] tracesys+0xdc/0xe1
[ 306.645920]
[ 306.647484] INFO: lockdep is turned off.
[ 306.651544] ---------------------------
[ 306.655510] | preempt count: 00000000 ]
[ 306.659497] | 0-level deep critical section nesting:
[ 306.664689] ----------------------------------------
[ 306.669856]