Hi, On 9/1/21 10:55 AM, Hans de Goede wrote: > Hi Tor, > > On 9/1/21 9:37 AM, torvic9@xxxxxxxxxxx wrote: >> (Sorry for not doing a proper reply) >> >> Hello, >> Noob here. >> I have a Samsung 860 Pro connected to a AMD X570 chipset mainboard and >> it just works flawlessly on 5.13 and 5.14. >> Are you sure that *every* 860/870 is concerned by this problem on >> *every* AMD controller? > > I am pretty sure that every 860 / 870 EVO is affected, > I am not sure if the PRO is also affected. So while reading https://bugzilla.kernel.org/show_bug.cgi?id=201693 again to add a comment asking if anyone was seeing this on a pro to I found existing comments of both queued-trims being an issue on the 860 pro, as well as the 860 pro having issues with some AMD sata controllers. So it seems safe to say that the 860 pro has the same issues as the 860 and 870 evo models. Chances are you don't have discard support enabled causing you to not see the queued-trim issues (which means you also won't see any difference from disabling support for queued-trim commands). So this just leaves your question of: "concerned by this problem on *every* AMD controller?" Where "this problem" is needing to completely disable NCQ and I guess the answer is no, not every AMD controller is affected. Still the plan is to err on the safe side for now, allowing overriding this from the kernel cmdline with: libata.force=ncqamd I will add a comment to: https://bugzilla.kernel.org/show_bug.cgi?id=201693 Asking for PCI-ids of the controllers where people are seeing this and then maybe we can narrow down the "AMD" check in a future follow up patch. Regards, Hans
