Messages in this thread | | | Date | Mon, 8 Feb 2010 21:51:05 +0100 | From | Andreas Mohr <> | Subject | Re: clocksource mutex deadlock, cat current_clocksource (2.6.33-rc6/7) |
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Hi,
On Mon, Feb 08, 2010 at 09:40:24PM +0100, Thomas Gleixner wrote: > On Mon, 8 Feb 2010, Thomas Gleixner wrote: > > On Mon, 8 Feb 2010, Andreas Mohr wrote: > > Which compiler version are you using ? > > > > Can you please provide the disassembly of kernel/time/timekeeping.o ? > > Is that NMI watchdog hit fully reproducible ?
Looks like it: - another bootup also had lockup message - all /var/log/dmesg* have lockup message, oldest is: 2010-02-07 20:00 dmesg.4.gz
Linux version 2.6.33-rc6 (root@note) (gcc version 4.3.4 (Debian 4.3.4-6)) #3 Sun Jan 31 23:47:51 CET 2010 . . . PM: Adding info for No Bus:cooling_device0 Switching to clocksource acpi_pm BUG: NMI Watchdog detected LOCKUP on CPU0, ip c1046694, registers: Modules linked in:
Pid: 266, comm: kwatchdog Not tainted 2.6.33-rc6 #3 Inspiron 8000 /Inspiron 8000 EIP: 0060:[<c1046694>] EFLAGS: 00000082 CPU: 0 EIP is at timekeeping_forward_now+0xf0/0x11d EAX: 342100fe EBX: f3dcdfc8 ECX: 63826cfb EDX: ffffffff ESI: 003ffd7b EDI: 00000000 EBP: dfa31f50 ESP: dfa31f28 DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 Process kwatchdog (pid: 266, ti=dfa31000 task=dfa4e0a0 task.ti=dfa31000) Stack: 005b9e7e 00000000 6184c590 00000fff 002cb338 4b6f0da7 00000000 c13d8524 <0> c13d8524 dfa31f48 dfa31f60 c10466d2 c13d8524 c13d8524 dfa31f6c c104725e
IOW, it's NOT gcc 4.4 and it's pretty darn reproducible.
Andreas Mohr
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