On 2/17/24 01:06, Michael Tokarev wrote:
28.02.2023 20:11, Guenter Roeck wrote:Host drivers do not necessarily set cdb_len in megasas io commands. With commits 6d1511cea0 ("scsi: Reject commands if the CDB length exceeds buf_len") and fe9d8927e2 ("scsi: Add buf_len parameter to scsi_req_new()"), this results in failures to boot Linux from affected SCSI drives because cdb_len is set to 0 by the host driver. Set the cdb length to its actual size to solve the problem.Has this been lost/forgotten?
Not sure. My understanding was that I could not prove that this is how real hardware handles the situation, thus it wasn't applied. I carry it locally in my builds of qemu, so it is not a problem for me. Note that I didn't check if the problem has since been fixed differently. Maybe that is the case and the problem no longer exists in the upstream version of qemu. Guenter
