Mark Lord wrote: > Hi guys, > > I'm debugging a system here based on ICH7/ata_piix. > When we hot-pull a drive, it locks up solid. > That's fine, but I'd like to find/fix the lockup. > > So as part of poking around, I rebuilt the kernel with frame pointers, > and inserted a WARN_ON(1) into ata_busy_sleep() to see who was calling it > just before things locked up. > Here's the result: http://rtr.ca/libata.png > > Can anyone here make sense of that traceback?? > Are we *really* recursing inside the EH code? It looks like SCSI EH -> piix_sata_error_handler -> ata_eh_recover -> ata_std_softreset -> ata_std_prereset -> ata_busy_sleep with lots of bogus entries inbetween. -- tejun - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
