[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] segfault in VM - FIXED!
> > On 23 Jul 2004, at 17:01, Keir Fraser wrote: > > > > What we need now is some more checking, particularly with SCSI block > > devices, to see whether there are any more bugs to shake out. > > I've given this change a go on my PE1650 (aacraid driver). > Unfortunately this seems to be one of the SCSI drivers that doesn't > correctly handle the error condition. > > Running my usual test ('compare' in dom0, compiles in other domains), I > don't see any differences in the compares, but after a few minutes, I > get the following on the console, and everything is stuck waiting for > disk. > > aacraid: cmd len 00000000 cmd underflow 00010000 > aacraid: Host adapter reset request. SCSI hang ? > > The latter message repeats every few seconds. I rebooted the box with > the Xen console after a few lines. I'm going to try the aacraid driver > from 2.4.27-rc3, which I believe has had some attention recently. Looks like the SCSI-merge code will have to be modified. I'll do IDE-merge code at the same time, so that we just merge less aggressively rather than falling back to PIO transfers. I'll leave the check in pci_map_sg(), but it shouldn't ever trigger after I patch the IDE and SCSI merge routines, so I'll add a warning message if an invalid scatter-gather list is detected. -- Keir ------------------------------------------------------- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=4721&alloc_id=10040&op=click _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
|
![]() |
Lists.xenproject.org is hosted with RackSpace, monitoring our |