[openib-general] Causes of interrupt problems?

[Roland Fehrenbacher]

>>>>> "Troy" == Troy Benjegerdes <hozer at hozed.org> writes:

    Troy> What would cause the following?

 > ib_mthca: Mellanox InfiniBand HCA driver v0.06-pre (November 8, 2004)
 > ib_mthca: Initializing Mellanox Technology MT23108 InfiniHost (0000:04:00.0)
 > ib_mthca 0000:04:00.0: NOP command failed to generate interrupt, aborting.
 > ib_mthca 0000:04:00.0: BIOS or ACPI interrupt routing problem?

kernel commandline parameter "pci=noacpi" might get around this. If not,
try "noapic".

Roland

    Troy> I've seen this on two Opteron systems, one Tyan board, one
    Troy> Rioworks HDAMA. Is there some bios setting I should look
    Troy> for? Things are working fine on another Rioworks HDAMA
    Troy> board.