Hi Christoph, Jens,
I found an interesting bug in my KVM guest (tested on s390x). The guest
uses a virtio-scsi disk and the current linux-next kernel. The problem
is that I cannot get the SCSI ID of the attached SCSI disk. Running the
command `lsscsi --scsi_id` in the guest returns:
root@qemus390x:~# lsscsi --scsi_id
[0:0:0:0] disk Linux scsi_debug 0190 /dev/sda -
but the expected result is something like:
root@qemus390x:~# lsscsi --scsi_id
[0:0:0:0] disk Linux scsi_debug 0190 /dev/sda 33333333000002710
Also there is no /dev/disk/by-id/scsi-* path created. I bisected the
problem to...
commit f3256075ba49d80835b601bfbff350a2140b2924 (HEAD, refs/bisect/bad)
Author: Christoph Hellwig <hch@xxxxxx>
Date: Thu Aug 27 17:37:45 2020 +0200
block: remove the BIO_NULL_MAPPED flag
When I reverted this commit the problem was gone. Any ideas what the
problem is? Thanks in advance.
Best regards,
Marc
