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libreport version: 2.0.6 abrt_version: 2.0.4.981 cmdline: memtest=1 hpet=verbose clocksource=hpet ro root=UUID=7609fdc1-3769-4208-a41d-ca1c55d77cd8 rhgb quiet LANG=ja_JP.UTF-8 KEYTABLE=jp106 plymouth_theme=charge selinux=0 comment: reading syslog kernel: undefined reason: [ INFO: possible recursive locking detected ] time: Tue Oct 4 08:22:02 2011 backtrace: :[ INFO: possible recursive locking detected ] :3.1.0-rc8.fc17.i686+ #5 :--------------------------------------------- :systemd-logind/822 is trying to acquire lock: :(&ep->mtx){+.+.+.}, at: [<c052417e>] ep_scan_ready_list+0x32/0x151 :but task is already holding lock: :(&ep->mtx){+.+.+.}, at: [<c0524614>] sys_epoll_ctl+0x103/0x481 :other info that might help us debug this: :Possible unsafe locking scenario: : CPU0 : ---- : lock(&ep->mtx); : lock(&ep->mtx); :*** DEADLOCK *** :May be due to missing lock nesting notation :2 locks held by systemd-logind/822: :#0: (epmutex){+.+.+.}, at: [<c05245cf>] sys_epoll_ctl+0xbe/0x481 :#1: (&ep->mtx){+.+.+.}, at: [<c0524614>] sys_epoll_ctl+0x103/0x481 :stack backtrace: :Pid: 822, comm: systemd-logind Not tainted 3.1.0-rc8.fc17.i686+ #5 :Call Trace: :[<c08366fd>] ? printk+0x2d/0x2f :[<c0469bc6>] __lock_acquire+0x7f6/0xb48 :[<c04044ba>] ? dump_trace+0x92/0xbc :[<c040b8f4>] ? save_stack_trace+0x30/0x4a :[<c052417e>] ? ep_scan_ready_list+0x32/0x151 :[<c046a316>] lock_acquire+0xb2/0xee :[<c052417e>] ? ep_scan_ready_list+0x32/0x151 :[<c083d304>] __mutex_lock_common+0x53/0x388 :[<c052417e>] ? ep_scan_ready_list+0x32/0x151 :[<c0469204>] ? mark_lock+0x26/0x1f2 :[<c043173e>] ? __might_sleep+0x36/0x108 :[<c0469204>] ? mark_lock+0x26/0x1f2 :[<c083d73f>] mutex_lock_nested+0x3e/0x44 :[<c052417e>] ? ep_scan_ready_list+0x32/0x151 :[<c052417e>] ep_scan_ready_list+0x32/0x151 :[<c0523d37>] ? ep_remove+0x9b/0x9b :[<c05242b1>] ep_poll_readyevents_proc+0x14/0x16 :[<c0523f42>] ep_call_nested.constprop.3+0x6d/0x9a :[<c052429d>] ? ep_scan_ready_list+0x151/0x151 :[<c052403e>] ep_eventpoll_poll+0x45/0x55 :[<c0524710>] sys_epoll_ctl+0x1ff/0x481 :[<c0523e67>] ? ep_send_events_proc+0xd5/0xd5 :[<c0843b63>] sysenter_do_call+0x12/0x3c event_log: :2011-10-04-17:24:31* (exited with 1) :2011-10-04-17:25:30> Submitting oops report to http://submit.kerneloops.org/submitoops.php :2011-10-04-17:26:33 Kernel oops has not been sent due to Couldn't connect to server :2011-10-04-17:26:33* (exited with 1) smolt_data: :Traceback (most recent call last): : File "/usr/bin/smoltSendProfile", line 152, in <module> : profile = smolt.get_profile() : File "/usr/share/smolt/client/smolt.py", line 1415, in get_profile : return Hardware() : File "/usr/share/smolt/client/smolt.py", line 1004, in Hardware : _hardware_instance = _Hardware() : File "/usr/share/smolt/client/smolt.py", line 591, in __init__ : self.host = Host() : File "/usr/share/smolt/client/smolt.py", line 283, in __init__ : self.systemMemory = Gate().process('ram_size', memory['ram'], 0) :TypeError: 'NoneType' object is not subscriptable
Package: kernel Architecture: i686 OS Release: Fedora release 16 (Verne) Comment ----- reading syslog
(In reply to comment #0) > libreport version: 2.0.6 > abrt_version: 2.0.4.981 > cmdline: memtest=1 hpet=verbose clocksource=hpet ro > root=UUID=7609fdc1-3769-4208-a41d-ca1c55d77cd8 rhgb quiet LANG=ja_JP.UTF-8 > KEYTABLE=jp106 plymouth_theme=charge selinux=0 > comment: reading syslog > kernel: undefined > reason: [ INFO: possible recursive locking detected ] > time: Tue Oct 4 08:22:02 2011 > > backtrace: > :[ INFO: possible recursive locking detected ] > :3.1.0-rc8.fc17.i686+ #5 It looks like you built this kernel yourself? Fedora has a patch that should fix this already.
(In reply to comment #2) > (In reply to comment #0) > > libreport version: 2.0.6 > > abrt_version: 2.0.4.981 > > cmdline: memtest=1 hpet=verbose clocksource=hpet ro > > root=UUID=7609fdc1-3769-4208-a41d-ca1c55d77cd8 rhgb quiet LANG=ja_JP.UTF-8 > > KEYTABLE=jp106 plymouth_theme=charge selinux=0 > > comment: reading syslog > > kernel: undefined > > reason: [ INFO: possible recursive locking detected ] > > time: Tue Oct 4 08:22:02 2011 > > > > backtrace: > > :[ INFO: possible recursive locking detected ] > > :3.1.0-rc8.fc17.i686+ #5 > > It looks like you built this kernel yourself? Fedora has a patch that should > fix this already. OK I will try it. I close this issue.