Comment 13 for bug 1967814

------- Comment From <email address hidden> 2022-04-08 05:13 EDT-------
(In reply to comment #81)
> (In reply to comment #80)
> > Let me know if you had time to push the PPA through your testing.
>
> Pulled the PPA
>
> root@ilzlnx3:~# apt info qemu
> Package: qemu
> Version: 1:4.2-3ubuntu6.22~focalppa1
>
> I triggered a path failure from the host and saw the faulty paths on the
> guest but no data miscompares (first time I've ever seen it not having
> miscompares at the first try).
> Recovered and tried again, this time I did got the miscompares, I captured
> the DBGINFO and sosreport, let me know if something else is needed.
>
> ********** EXPECTED (Target: /fc/mapper/scsi_32G_d1_ilsd9840l/test, LBA:
> 1243520, Offset: 5) **********
> 00000000 00 00 00 00 00 12 F9 80 00 00 00 00 00 00 00 01
> ................
> 00000010 00 00 00 00 62 4F 60 1C 00 00 00 00 00 00 06 EB
> ....bO`.........
> 00000020 69 6C 7A 6C 6E 78 33 67 31 00 00 00 00 00 00 00
> ilzlnx3g1.......
> 00000030 2F 66 63 2F 6D 61 70 70 65 72 2F 73 63 73 69 5F
> /fc/mapper/scsi_
> 00000040 33 32 47 5F 64 31 5F 69 6C 73 64 39 38 34 30 6C
> 32G_d1_ilsd9840l
>
> ********** ACTUAL (Target: /fc/mapper/scsi_32G_d1_ilsd9840l/test, LBA:
> 1243520, Offset: 5) **********
> 00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> ................
> 00000010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> ................
> 00000020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> ................
> 00000030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> ................

That is very bad news! :(

I was not able to trigger the problem with the patched qemu. I will try harder, but if I can't trigger the problem it becomes very difficult for me to work on it.