assertion failure with new megaraid beta driver leads to scheduling failure

assertion failure with new megaraid beta driver leads to scheduling failure

[Paul Wagland]

[-- Attachment #1: Type: text/plain, Size: 1191 bytes --]

Hi all,

Well, seems I have a penchance for causing trouble ;-)

I was playing around with the new beta driver, and was trying to remove
some logical drives using the dellmgr utility.

Well, something between the driver and the BIOS got unhappy, and all of
a sudden I got about 20 of the following lines:

assertion failed:(spin_is_locked(adapter->host_lock)), file: drivers/scsi/megaraid.c, line: 3061:megaraid_abort_handler

followed by (copied by hand... maybe I should set up a serial console :-):

bad: scheduling while atomic!
Call Trace:
 [<c011cd5f>] schedule+0x58f/0x5a0
 [<c01209a7>] __call_console_drivers+0x57/0x60
 [<c0108126>] __down+0x86/0x100
 [<c011cdc0>] default_wake_function+0x0/0x20
 [<f8832790>] megaraid_reset_handler+0x0/0xc0 [megaraid]
 [<c010833c>] __down_failed+0x8/0xc
 [<f8833fee>] .text.lock.megaraid_clib+0x5/0x17 [megaraid]
 [<f88327be>] megaraid_reset_handler+0x2e/0xc0 [megaraid]

this was called from:
scsi_try_bus_device_reset
scsi_eh_bus_device_reset
scsi_eh_ready_devs
scsi_unjam_host
default_wake_function
scsi_error_handler
scsi_error_handler
kernel_thread_helper



Thoughts and/or suggestions?

Cheers,
Paul

[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 189 bytes --]