----------- [cut here ] --------- [please bite here ] --------- Kernel BUG at cfq_iosched:407 invalid operand: 0000 [1] SMP CPU 0 Pid: 1739, comm: bonnie++ Not tainted 2.6.5-1.326axboetest RIP: 0010:[] {cfq_next_request+72} RSP: 0000:ffffffff804a9048 EFLAGS: 00010016 RAX: 00000100117db478 RBX: 000001007fe28800 RCX: 000001004b8a0ac0 RDX: 00000100117db440 RSI: 0000000000200000 RDI: 000001007f2c7000 RBP: 000001007f2c7000 R08: 0000010037ffae68 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000001000 R12: 000001007f2c7000 R13: 000001007f2c7000 R14: 000001005d5b7f58 R15: 0000000000509010 FS: 0000002a9555f360(0000) GS:ffffffff804a4e80(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000002a97c96000 CR3: 0000000000101000 CR4: 00000000000006e0 Process bonnie++ (pid: 1739, stackpage=1007fd5e1c0) Stack: ffffffffa003a940 0000010007092200 ffffffffa003a940 ffffffff8022b444 0000010007092200 ffffffffa003a940 0000000000029800 ffffffffa0036b82 0000000000000001 000001007b1e3ac0 Call Trace: {elv_next_request+238} {:i2o_block:i2ob_request+233} {:i2o_block:i2o_block_reply+1162} {drain_array+236} {reap_timer_fnc+636} {update_wall_time+12} {:i2o_core:i2o_run_queue+124} {:i2o_core:i2o_pci_interrupt+9} {handle_IRQ_event+44} {do_IRQ+285} {__do_softirq+76} {ret_from_intr+0} Code: 0f 0b 95 3a 32 80 ff ff ff ff 97 01 48 89 c8 eb 0e 48 89 de RIP {cfq_next_request+72} RSP <0>Kernel panic: Aiee, killing interrupt handler! In interrupt handler - not syncing <0>Rebooting in 5 seconds..Badness in panic at kernel/panic.c:87 Call Trace: {panic+416} {do_IRQ+386} {ret_from_intr+0} {do_exit+87} {oops_end+80} {do_trap+0} {do_trap+253} {do_invalid_op+145} {cfq_next_request+72} {recalc_task_prio+343} {error_exit+0} {cfq_next_request+72} {elv_next_request+238} {:i2o_block:i2ob_request+233} {:i2o_block:i2o_block_reply+1162} {drain_array+236} {reap_timer_fnc+636} {update_wall_time+12} {:i2o_core:i2o_run_queue+124} {:i2o_core:i2o_pci_interrupt+9} {handle_IRQ_event+44} {do_IRQ+285} {__do_softirq+76} {ret_from_intr+0}