Comment 17 for bug 666828

Fair enough, I think I found some related files on the HP site, been reading through those.

What I don't understand is this: why is it suddenly a firmware issue now on Ubuntu 12.04, when it wasn't an issue on VMWare ESX? The hardware has not changed. If there's a firmware bug, fine, but why was it handled before and not now?

I managed to get an oops out of the current running kernel (3.2.0-40-generic):

[69240.280022] INFO: task rs:main Q:Reg:405 blocked for more than 120 seconds.
[69240.280037] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[69240.280050] rs:main Q:Reg D 0000000000000001 0 405 1 0x00000000
[69240.280057] ffff880036fbb9d8 0000000000000082 0000000000000001 0000001000000000
[69240.280065] ffff880036fbbfd8 ffff880036fbbfd8 ffff880036fbbfd8 00000000000137c0
[69240.280073] ffff8800785a1700 ffff88007a904500 ffff880036fbb9b8 ffff88007fc54080
[69240.280081] Call Trace:
[69240.280093] [<ffffffff81118630>] ? __lock_page+0x70/0x70
[69240.280102] [<ffffffff8165c58f>] schedule+0x3f/0x60
[69240.280107] [<ffffffff8165c63f>] io_schedule+0x8f/0xd0
[69240.280113] [<ffffffff8111863e>] sleep_on_page+0xe/0x20
[69240.280118] [<ffffffff8165ce5f>] __wait_on_bit+0x5f/0x90
[69240.280122] [<ffffffff811187a8>] wait_on_page_bit+0x78/0x80
[69240.280129] [<ffffffff8108bf00>] ? autoremove_wake_function+0x40/0x40
[69240.280134] [<ffffffff811194b2>] grab_cache_page_write_begin+0x92/0xe0
[69240.280140] [<ffffffff81078098>] ? lock_timer_base.isra.29+0x38/0x70
[69240.280176] [<ffffffffa00b81e0>] ? xfs_get_blocks_direct+0x20/0x20 [xfs]
[69240.280183] [<ffffffff811ad4a8>] block_write_begin+0x38/0xa0
[69240.280201] [<ffffffffa00b82a3>] xfs_vm_write_begin+0x43/0x70 [xfs]
[69240.280207] [<ffffffff81118a7a>] generic_perform_write+0xca/0x210
[69240.280213] [<ffffffff81118c1d>] generic_file_buffered_write+0x5d/0x90
[69240.280232] [<ffffffffa00be19c>] xfs_file_buffered_aio_write+0xfc/0x1c0 [xfs]
[69240.280238] [<ffffffff8165d736>] ? down_write+0x16/0x40
[69240.280257] [<ffffffffa00be3dc>] xfs_file_aio_write+0x17c/0x2a0 [xfs]
[69240.280263] [<ffffffff8109ead2>] ? unqueue_me+0x52/0x80
[69240.280267] [<ffffffff8109fc48>] ? futex_wait+0x108/0x210
[69240.280273] [<ffffffff8117900a>] do_sync_write+0xda/0x120
[69240.280279] [<ffffffff812d9c28>] ? apparmor_file_permission+0x18/0x20
[69240.280285] [<ffffffff8129f3bc>] ? security_file_permission+0x2c/0xb0
[69240.280289] [<ffffffff811795b1>] ? rw_verify_area+0x61/0xf0
[69240.280294] [<ffffffff81179913>] vfs_write+0xb3/0x180
[69240.280298] [<ffffffff81179c3a>] sys_write+0x4a/0x90
[69240.280303] [<ffffffff81666a82>] system_call_fastpath+0x16/0x1b