[Qemu-devel] qemu-0.9.0 fedora 7, cdrom and ide emulation error

[许东晓]

Hi, all,
    When I use qemu-0.9.0 to boot fedora 7 and add cdrom option, there
will be some error info in the login interface and in the dmesg, such
like this:

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)

And in qemu-0.9.1 and latest kvm, I see this issue has been fixed. Can
someone tell me the exact changeset/patch to fix this issue? Thanks
very much.

P.S:
    I also see Matthew Kent and dmc have discussed it before in the
past mail-archive:

From:  Matthew Kent
Subject:  [Qemu-devel] fedora 7, cdrom and GPCMD_GET_EVENT_STATUS_NOTIFICATION
Date:  Fri, 27 Jul 2007 15:19:05 -0700



Best Regards,
Xu Dongxiao