Hello, On 03/10/2018 16:02, Alan Stern wrote:
Well, what happens if you add only US_FL_BROKEN_FUA without US_FL_IGNORE_UAS? Does it work?
Tried all four combinations with gentoo 4.18.12. Just US_FL_IGNORE_UAS fails with the error message in the original bug report. The other three combinations (both flags removed, both flags set, just US_FL_BROKEN_FUA set) work, at least for a quick test with ext4. My guess: Without US_FL_IGNORE_UAS (i.e. when using UAS), the FUA command triggering the error is not used at all, so US_FL_BROKEN_FUA doesn't make a difference.
For that matter, does your kernel config include the uas driver?
Yes, it does. I think we have to wait for [email protected] . He could tell why he added US_FL_IGNORE_UAS, if it's really needed, and why it was not included in mainline. However, as US_FL_BROKEN_FUA is set for JMS567, it is perhaps a good idea to set it for JMS566, too, independent of US_FL_IGNORE_UAS (which is not set for JMS567). -- Prof. Dr. Klaus Kusche Private address: Rosenberg 41, 07546 Gera, Germany +49 365 20413058 [email protected] https://www.computerix.info Office address: DHGE Gera, Weg der Freundschaft 4, 07546 Gera, Germany +49 365 4341 306 [email protected] https://www.dhge.de
