Hi,
I'm having trouble with my mythtv server locking up hard after approx
every 8 hours on average - apparently no such problems when I tried
installing W2K on the same hardware. Anyway, having enabled various
kernel debugging options, I've seen this pop out of the kernel messages:
Mar 5 14:07:40 etchtest kernel: BUG: at kernel/lockdep.c:1860
trace_hardirqs_on()
Mar 5 14:07:40 etchtest kernel:
Mar 5 14:07:40 etchtest kernel: Call Trace:
Mar 5 14:07:40 etchtest kernel: <IRQ> [<ffffffff8029cf51>]
trace_hardirqs_on+0xc4/0x150
Mar 5 14:07:40 etchtest kernel: [<ffffffff802629f8>]
_spin_unlock_irq+0x2b/0x31
Mar 5 14:07:40 etchtest kernel: [<ffffffff8830724e>]
:b2c2_flexcop_pci:flexcop_pci_isr+0x130/0x13c
Mar 5 14:07:40 etchtest kernel: [<ffffffff802101b6>]
handle_IRQ_event+0x20/0x55
Mar 5 14:07:40 etchtest kernel: [<ffffffff802b3fd3>]
handle_fasteoi_irq+0x95/0xd5
Mar 5 14:07:40 etchtest kernel: [<ffffffff8026871e>] do_IRQ+0x114/0x170
Mar 5 14:07:40 etchtest kernel: [<ffffffff8025b666>] ret_from_intr+0x0/0xf
Mar 5 14:07:40 etchtest kernel: <EOI>
I've had a very quick look at the code, but can't really tell whether
the bug in question is with the flexcop_pci driver, or the lockdep code...
The box is running 2.6.20 (+ Debian patches), on an Intel Core2 Duo
mobile. SMP is enabled. I can compile a stock kernel if that'd be more
useful.
Tim.
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