lkml.org 
[lkml]   [2011]   [Jun]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectINFO: possible recursive locking detected
this is on the current Mainline:
dmesg here: http://fpaste.org/khwR/


[ 860.020044]
[ 860.020044] =============================================
[ 860.020044] [ INFO: possible recursive locking detected ]
[ 860.020044] 3.0.0-rc4-00052-gbccaeaf #2
[ 860.020044] ---------------------------------------------
[ 860.020044] bash/2254 is trying to acquire lock:
[ 860.020044] (&(lock)->rlock){-.-...}, at: [<ffffffff812730a3>]
acpi_os_acquire_lock+0xe/0x10
[ 860.020044]
[ 860.020044] but task is already holding lock:
[ 860.020044] (&(lock)->rlock){-.-...}, at: [<ffffffff812730a3>]
acpi_os_acquire_lock+0xe/0x10
[ 860.020044]
[ 860.020044] other info that might help us debug this:
[ 860.020044] Possible unsafe locking scenario:
[ 860.020044]
[ 860.020044] CPU0
[ 860.020044] ----
[ 860.020044] lock(&(lock)->rlock);
[ 860.020044] lock(&(lock)->rlock);
[ 860.020044]
[ 860.020044] *** DEADLOCK ***
[ 860.020044]
[ 860.020044] May be due to missing lock nesting notation
[ 860.020044]
[ 860.020044] 4 locks held by bash/2254:
[ 860.020044] #0: (&buffer->mutex){+.+.+.}, at: [<ffffffff8117965a>]
sysfs_write_file+0x3c/0x144
[ 860.020044] #1: (s_active#160){.+.+.+}, at: [<ffffffff81179705>]
sysfs_write_file+0xe7/0x144
[ 860.020044] #2: (pm_mutex){+.+.+.}, at: [<ffffffff8108828e>]
enter_state+0x34/0x137
[ 860.020044] #3: (&(lock)->rlock){-.-...}, at: [<ffffffff812730a3>]
acpi_os_acquire_lock+0xe/0x10
[ 860.020044]
[ 860.020044] stack backtrace:
[ 860.020044] Pid: 2254, comm: bash Not tainted 3.0.0-rc4-00052-gbccaeaf #2
[ 860.020044] Call Trace:
[ 860.020044] [<ffffffff8107b80d>] __lock_acquire+0x903/0xce3
[ 860.020044] [<ffffffff8107b3e6>] ? __lock_acquire+0x4dc/0xce3
[ 860.020044] [<ffffffff812730a3>] ? acpi_os_acquire_lock+0xe/0x10
[ 860.020044] [<ffffffff8107c04d>] lock_acquire+0xbf/0x103
[ 860.020044] [<ffffffff812730a3>] ? acpi_os_acquire_lock+0xe/0x10
[ 860.020044] [<ffffffff8128a1d8>] ?
acpi_hw_enable_runtime_gpe_block+0x48/0x48
[ 860.020044] [<ffffffff814a0625>] _raw_spin_lock_irqsave+0x3f/0x52
[ 860.020044] [<ffffffff812730a3>] ? acpi_os_acquire_lock+0xe/0x10
[ 860.020044] [<ffffffff812730a3>] acpi_os_acquire_lock+0xe/0x10
[ 860.020044] [<ffffffff8128384c>] acpi_ev_walk_gpe_list+0x28/0x92
[ 860.020044] [<ffffffff8128a8ac>] acpi_hw_clear_acpi_status+0x3e/0x5a
[ 860.020044] [<ffffffff8101e33e>] ? paravirt_read_msr+0x10/0x14
[ 860.020044] [<ffffffff8128ac7b>] acpi_enter_sleep_state+0x90/0x1d6
[ 860.020044] [<ffffffff813dff84>] ? paravirt_read_msr+0x10/0x14
[ 860.020044] [<ffffffff8101f5ba>] do_suspend_lowlevel+0x9a/0x9c
[ 860.020044] [<ffffffff8101f4a8>] ? acpi_suspend_lowlevel+0x1b0/0x1c8
[ 860.020044] [<ffffffff81274056>] acpi_suspend_enter+0x37/0x96
[ 860.020044] [<ffffffff810881c0>] suspend_devices_and_enter+0x13f/0x1d9
[ 860.020044] [<ffffffff8108833a>] enter_state+0xe0/0x137
[ 860.020044] [<ffffffff8108793c>] state_store+0xaf/0xc5
[ 860.020044] [<ffffffff812265af>] kobj_attr_store+0x17/0x19
[ 860.020044] [<ffffffff81179726>] sysfs_write_file+0x108/0x144
[ 860.020044] [<ffffffff8111d577>] vfs_write+0xac/0xf3
[ 860.020044] [<ffffffff8111e974>] ? fget_light+0x3a/0x9c
[ 860.020044] [<ffffffff8111d766>] sys_write+0x4a/0x6e
[ 860.020044] [<ffffffff814a7682>] system_call_fastpath+0x16/0x1b

positive side is the previous pull I had with the Mainline rebooted upon
wakeup. Now the machine wakes up and runs normally(minus the INFO thing)
In any let me know if you need any info.

Justin P. Mattock


\
 
 \ /
  Last update: 2011-06-23 08:57    [W:0.039 / U:0.108 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site