Boot failure with PATA disk on ATIIXP SB400 IDE controller
|Reported by:||drackham||Owned by:||marcusoverhagen|
|Has a Patch:||no||Platform:||All|
I am unable to boot off a PATA disk with an ATIIXP SB400 IDE controller. Booting stops at the disk icon. Machine is a Gateway with MS-7173 motherboard and a single P4 processor. Last tested with hrev25799.
My symptoms sound almost identical to #1444 except that I have no SATA disks and generally disable the SATA controller in the BIOS, although I've also tried with it enabled. I've tried both the IDE and ATA bus_managers, returning early from pci_fixup, and waiting over a minute for anything to timeout. I've also tried disabling/disconnecting all non-essential hardware. I tested every combination of these strategies.
Sticking dprintf in relevant places suggests that with the ATA bus_manager any call to snooze in ata_reset_bus deadlocks, never returning from scheduler_reschedule. Likewise, with the IDE bus_manager, the call to acquire_sem_etc in scan_device_int never returns.
I've attached serial debug output for both bus_managers with TRACE_SCHEDULER enabled. In both cases, after entering KDL with F12, "threads" shows that all but the idle thread are either snoozing or waiting for a sem.
Please let me know if additional information would be helpful.