On 04/11/2018 05:37 AM, Christian König wrote: >> With your patches my EPYC box is unusable with 4.15++ kernels. >> The whole Desktop is acting weird. This one is using >> an Cape Verde PRO [Radeon HD 7750/8740 / R7 250E] GPU. >> >> Box is 2 * EPYC 7281 with 128 GB ECC RAM >> >> Also a 14C Xeon box with a HD7700 is broken same way. > > The hardware is irrelevant for this. We need to know what software stack > you use on top of it. Well, the hardware appears to be part of the issue too. I don't think it's a coincidence that Gabriel has the problem on 2xEPYC, I have it on 2xXeon and the previous reported had it on a Core 2 Quad that internally has two dies. I've not yet tested your disable CONFIG_SWIOTLB fix yet -- might try it over the weekend and report what happens. Cheers, Jean-Marc _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel