Jean, ast doesn't remove the vesafb's framebuffer before attaching to the device. I have a patch at [1]. If you have a way of testing it, I'd appreciate. Best regards Thomas [1] https://bugzilla.suse.com/show_bug.cgi?id=1112963 Am 12.11.18 um 17:41 schrieb Jean Delvare: > On Mon, 2018-11-12 at 15:45 +0100, Takashi Iwai wrote: >> On Mon, 12 Nov 2018 15:36:07 +0100, >> Jean Delvare wrote: >>> Takashi asked me to compare the contents of >>> /sys/kernel/debug/x86/pat_memtype_list before and after the commit >>> above. Before the commit, we have: >>> >>> uncached-minus @ 0xfafe0000-0xfb000000 >>> uncached-minus @ 0xfb000000-0xfb005000 >>> write-combining @ 0xfb005000-0xfb584000 >>> >>> After the commit, we have: >>> >>> uncached-minus @ 0xfafe0000-0xfb000000 >>> uncached-minus @ 0xfb000000-0xfb005000 >>> uncached-minus @ 0xfb000000-0xfb800000 >>> uncached-minus @ 0xfb005000-0xfb584000 >> >> Just to be sure: >> could you double-check whether you're checking the right order >> (i.e. not checking against the revert)? The change above looks >> illogical from what I can see from the commit... > > Yes, I double checked and can only confirm what I wrote above. However > while checking I noticed another strange thing: the contents of > pat_memtype_list depend on whether I'm reading the file from an xterm > or from the text console (Ctrl+Alt+F2). So I summarize again: > > Commit "drm/drivers: add support for using the arch wc mapping API" > APPLIED, reading pat_memtype_list from the text console: > > uncached-minus @ 0xfafe0000-0xfb000000 > uncached-minus @ 0xfb000000-0xfb005000 > uncached-minus @ 0xfb000000-0xfb800000 > uncached-minus @ 0xfb005000-0xfb584000 > > Commit "drm/drivers: add support for using the arch wc mapping API" > APPLIED, reading pat_memtype_list from an xterm: > > uncached-minus @ 0xfafe0000-0xfb000000 > uncached-minus @ 0xfb000000-0xfb005000 > uncached-minus @ 0xfb000000-0xfb800000 > > Commit "drm/drivers: add support for using the arch wc mapping API" > REVERTED, reading pat_memtype_list from the text console: > > uncached-minus @ 0xfafe0000-0xfb000000 > uncached-minus @ 0xfb000000-0xfb005000 > write-combining @ 0xfb005000-0xfb584000 > > Commit "drm/drivers: add support for using the arch wc mapping API" > REVERTED, reading pat_memtype_list from an xterm: > > uncached-minus @ 0xfafe0000-0xfb000000 > uncached-minus @ 0xfb000000-0xfb005000 > > If you don't find it logical, remember that if things were the way they > are supposed to be, customers and myself would not be reporting this > bug ;-) > -- Thomas Zimmermann Graphics Driver Developer SUSE Linux GmbH, Maxfeldstr. 5, D-90409 Nürnberg Tel: +49-911-74053-0; Fax: +49-911-7417755; https://www.suse.com/ SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
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