[cc'ing the linux-ide list if they have any suggestions as to possible causes, original post http://marc.info/?l=qemu-devel&m=118557513905049&w=2 ] On Mon, 2007-30-07 at 00:21 -0500, dmc wrote: > Matthew Kent wrote: > > Been digging around for a solution or confirmation of this for a while > > now without much luck. Forgive me if there's a solution to this I'm just > > not seeing. > > > > Getting some ugly libata related errors in my guest like > > > > ata2: DRQ=1 with device error, dev_stat 0x49 > > ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen > > ata2.00: cmd a0/00:00:00:00:20/00:00:00:00:00/a0 tag 0 cdb 0x4a data 8 > > in > > res 41/50:03:00:00:20/00:00:00:00:00/a0 Emask 0x3 (HSM > > violation) > > ata2: soft resetting port > > ata2.00: configured for MWDMA2 > > ata2: EH complete > > > > when running a stock install of Fedora 7 (x86_64) in qemu (the stock > > fedora package of qemu 0.9.0 or kvm-33). Tried upgrading to the latest > > updated kernel 2.6.22.1-33.fc7, then the latest development one with no > > change. > > > > Tracked it down to hald-addon-storage which is polling the cdrom with > > SG_IO and GPCMD_GET_EVENT_STATUS_NOTIFICATION which is trying to "check > > if eject button was pressed". > > > > In my search I found a brief example program in this ticket > > https://bugzilla.novell.com/show_bug.cgi?id=145147 which replicates the > > issue reliably here without involving hal. > > > > The workaround I found was to run > > > > hal-disable-polling --device /dev/scd0 > > > > but given the lack of success I had finding other people reporting this > > exact issue in libata proper, I'm guessing it might be something with > > the cd-rom emulation of which fixing is way over my head :) > > > > Guest dmesg and test case attached. > > > > Anyone else seeing this? > > > Yeah. I mentioned it on fedora-devel@xxxxxxxxxxx I was forwarded to a link > which mentioned the workaround you mentioned, as well as prefixing it with a > 'killall hald-addon-storage'. > > I also ran across this little patch, which I haven't bothered to try yet. > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=431829 > > If you try it, let me know if it works. > > -dmc Came across the same one and tried it, no such luck unfortunately. -- Matthew Kent <mkent@xxxxxxxxxxxx> http://magoazul.com - 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
