[ofa-general] ipath irq bug

[Bernd Schubert]

Hi,

with rather many kernel debug options enabled I get this trace/message:


[ 2651.218740] BUG: at kernel/lockdep.c:1860 trace_hardirqs_on()
[ 2651.224696]
[ 2651.224697] Call Trace:
[ 2651.228784]  <IRQ>  [<ffffffff8022a3e1>] release_console_sem+0x47/0x1f6
[ 2651.235709]  [<ffffffff80242a41>] trace_hardirqs_on+0xfd/0x154
[ 2651.241648]  [<ffffffff80478444>] _spin_unlock_irq+0x28/0x2d
[ 2651.247482]  [<ffffffff880a0769>] :ib_ipath:ipath_rc_rcv+0xf5b/0xf8e
[ 2651.254058]  [<ffffffff8809d1ff>] :ib_ipath:ipath_lookup_qpn+0x4f/0x5a
[ 2651.260791]  [<ffffffff880a5f40>] :ib_ipath:ipath_qp_rcv+0x45/0x4e
[ 2651.267203]  [<ffffffff880a60b3>] :ib_ipath:ipath_ib_rcv+0x16a/0x1a8
[ 2651.273784]  [<ffffffff88090a3e>] :ib_ipath:ipath_kreceive+0x42f/0x6b9
[ 2651.280545]  [<ffffffff80243bdd>] __lock_acquire+0xc08/0xc60
[ 2651.286397]  [<ffffffff880a6b02>] :ib_ipath:ipath_ib_piobufavail+0x72/0x79
[ 2651.291177] LustreError: 3433:0:(events.c:129:client_bulk_callback()) event 
type 0, status -5, desc ffff8100ca2ea000
[ 2651.294334] LustreError: 3433:0:(events.c:129:client_bulk_callback()) event 
type 0, status -5, desc ffff810070340000
[ 2651.315171]  [<ffffffff80478394>] _spin_unlock_irqrestore+0x38/0x47
[ 2651.321572]  [<ffffffff8809932c>] :ib_ipath:ipath_intr+0x26a/0x17b6
[ 2651.328082]  [<ffffffff80243bdd>] __lock_acquire+0xc08/0xc60
[ 2651.333892]  [<ffffffff80222167>] try_to_wake_up+0x413/0x425
[ 2651.339663]  [<ffffffff802532b2>] handle_edge_irq+0x139/0x142
[ 2651.345594]  [<ffffffff80477c79>] trace_hardirqs_on_thunk+0x35/0x37
[ 2651.351975]  [<ffffffff80242a53>] trace_hardirqs_on+0x10f/0x154
[ 2651.358010]  [<ffffffff80243bdd>] __lock_acquire+0xc08/0xc60
[ 2651.363789]  [<ffffffff80253266>] handle_edge_irq+0xed/0x142
[ 2651.369899]  [<ffffffff80251e47>] handle_IRQ_event+0x20/0x55
[ 2651.376086]  [<ffffffff80253271>] handle_edge_irq+0xf8/0x142
[ 2651.382325]  [<ffffffff8020bd78>] do_IRQ+0x94/0xf9
[ 2651.387591]  [<ffffffff80207c83>] default_idle+0x0/0x51
[ 2651.393109]  [<ffffffff80209ba6>] ret_from_intr+0x0/0xf
[ 2651.398582]  <EOI>  [<ffffffff80207cb8>] default_idle+0x35/0x51
[ 2651.405120]  [<ffffffff80207cba>] default_idle+0x37/0x51
[ 2651.410972]  [<ffffffff80207cb8>] default_idle+0x35/0x51
[ 2651.416824]  [<ffffffff80207e4e>] cpu_idle+0x5b/0x7a
[ 2651.422270]  [<ffffffff8063566c>] start_secondary+0x470/0x47f
[ 2651.428267]

Kernel is 2.6.20.4.

Any ideas?


Thanks,
Bernd

-- 
Bernd Schubert
Q-Leap Networks GmbH