Re: loading drm crashes system
Scott Bennett via freebsd-x11 <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.x11 |
|---|---|
| Message-ID | <[email protected]> |
Robert Huff <[email protected]> wrote: > > > Niclas Zeising asks: > > > > When did it stop working? > > > > > > September ... I _think_. > > > > Yeah, that sounds about right. > > > > There are known issues with Radeon cards, they were quite well > > supported a year ago, then something got broken. I've promised to > > bisect this and find the cause, but there were several syscall-related > > changes in -CURRENT though the course of the last year, so bisecting > > just the kernel is not enough (machine won't get to login prompt if > > the userland does not match), which cripples the process. > > > > I still intend to take this quest, just not sure when. :( > > Expanding on "September ... I think": > Try September 26 as a reference date. Sometime close to then I > a) updated world+kernel to the latest version of current, so also b) > updated to the latest drm-current-kmod and gpu-firmware. > Question: is there a way for the less sophisticated user <waves> > to tell whether the cause is in the drm knod or the firmware kmod? > It may well be in both. See PR #247441, in which the firmware hangs the GPU, the drm kmod then notices that the GPU has stopped responding, waits 10+ s, then branches into the BIOS reset routine. Both the hang and the drm kmod response are bugs. Scott Bennett, Comm. ASMELG, CFIAG ********************************************************************** * Internet: bennett at sdf.org *xor* bennett at freeshell.org * *--------------------------------------------------------------------* * "A well regulated and disciplined militia, is at all times a good * * objection to the introduction of that bane of all free governments * * -- a standing army." * * -- Gov. John Hancock, New York Journal, 28 January 1790 * ********************************************************************** _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-x11 To unsubscribe, send any mail to "[email protected]"