On Fri, 2007-03-23 at 02:26 +0100, thomas schorpp wrote: > ok, overriding the first while(ahc_is_paused) that blocked before > (i see no sense for doing this in a pci mmap test function, cause > proper resource setup is required *before* using such I/O functions, > otherwise the adapter had entered SEQ paused status) > i got the kernel to boot at least at pio mode. > > this is surely not the correct resource and looks like a datatype > boundary overflow, the upper 0x0f is missing: > [ 49.278810] Trying to free nonexistent resource > <00000000fffff000-00000000fff > fffff>
That's because ahc->platform_data->mem_busaddr is u32 > [ 54.513224] scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 7.0 > [ 54.513226] <Adaptec 19160B Ultra160 SCSI adapter> > [ 54.513227] aic7892: Ultra160 Wide Channel A, SCSI Id=7, 32/253 > SCBs The driver code suggests that the 7892 can't do the AHC_LARGE_SCBS features ... which means the card itself cannot address more than 32 bits of memory, so it would be unable to decode a BAR that's beyond the 32 bit range. So this looks like some type of error in the PCI config system (or possibly in the BIOS). I think this card needs its BARs to be in the lower 32 bits to function. James - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
