Re: Crash when loading i915kms

hi! please file a bug about this so we can track it. Which specific
iGPUs are you seeing this issue on?


-a

On Fri, 14 Aug 2026 at 12:18, <[email protected]> wrote:
>
> Hello again,i have managed a "hack" to get drm-6.12-kmod working on our old IGPUs,the hack is to simply return version 3 unconditionally for i915_gem_mmap_gtt_version (in src/drivers/gpu/drm/i915/gem/i915_gem_mman.c)
> the reason this is a hack because it will break for any modern intel gpu because you can't get the legacy ioctl working for them which version 3 uses
> an actual fix would be to fix LinuxKPI's page sharing behaviour(currently it seems linuxkpi can't represent two mappings of the same page)
> On Thursday, August 13th, 2026 at 1:32 AM, Anders Gulden Olstad <[email protected]> wrote:
>
> > Hi
> >
> > Yes my GPU/PC is getting quite old
> >
> > Replacing the drm-latest with drm-66 seems to have fixed the issue. I
> > installed it from ports.
> >
> > Br
> > Anders
> >
> >
> >
> > On 8/12/26 20:56, [email protected] wrote:
> > > this is interesting, i was thinking lkpi_vmf_insert_pfn_prot_locked: page
> > > rename failed: page is mapped was something only i was having ONLY on drm-6.12-kmod(drm 6.6 and drm 6.1 work fine) because my igpu is old, i have filed a github issue for this sometimes ago btw if you are interested
> > > https://github.com/freebsd/drm-kmod/issues/481
> > >
> > > i have been trying to debug this for some days now and i am 90% sure what the issue is
> > >
> > > -------- Original Message --------
> > > On Wednesday, 08/12/26 at 12:16 Anders Gulden Olstad <[email protected]> wrote:
> > > On 8/12/26 08:32, Anders Gulden Olstad wrote:
> > >> On 8/9/26 20:18, Mark Millard wrote:
> > >>> On 8/9/26 02:58, Ricardo Branco wrote:
> > >>>> Attached core.txt.5.gz
> > >>>>
> > >>>> Dump header from device: /dev/ada0p3
> > >>>>    Architecture: amd64
> > >>>>    Architecture Version: 2
> > >>>>    Dump Length: 1162715136
> > >>>>    Blocksize: 512
> > >>>>    Compression: none
> > >>>>    Dumptime: 2026-08-08 10:02:28 +0200
> > >>>>    Hostname:
> > >>>>    Magic: FreeBSD Kernel Dump
> > >>>>    Version String: FreeBSD 15.1-STABLE stable/15-n284803-c0f892003486
> > >>>> GENERIC
> > >>>
> > >> Got the same issue. Compiled drm-latest-kmod from ports to get X running
> > >> again.
> > >>
> > >> But Xorg is now crashing/respawning from time to time when I'm using
> > >> Firefox (video streaming etc)
> > >>
> > >> drmn0: [drm] GPU HANG: ecode 7:1:85dffffc, in Renderer [104909]
> > >> drmn0: [drm] Resetting rcs0 for stopped heartbeat on rcs0
> > >> drmn0: [drm] Renderer[104909] context reset due to GPU hang
> > >> drmn0: [drm] GPU HANG: ecode 7:1:85dffff8, in MainThread [100895]
> > >> drmn0: [drm] Resetting rcs0 for stopped heartbeat on rcs0
> > >> drmn0: [drm] Xorg[100895] context reset due to GPU hang
> > >> drmn0: [drm] GPU HANG: ecode 7:1:85dffff8, in MainThread [100895]
> > >> drmn0: [drm] Resetting rcs0 for stopped heartbeat on rcs0
> > >> drmn0: [drm] MainThread[100895] context reset due to GPU hang
> > >> drmn0: [drm] GPU HANG: ecode 7:1:85dffff8, in MainThread [100895]
> > >> drmn0: [drm] Resetting rcs0 for stopped heartbeat on rcs0
> > >> drmn0: [drm] MainThread[100895] context reset due to GPU hang
> > >> pid 3662 (Xorg), jid 0, uid 0: exited on signal 6 (core dumped)
> > >>
> > >> This is something I have never experienced before
> > >>
> > >> $ pkg info drm-latest-kmod
> > >> drm-latest-kmod-6.12.1501501
> > >> Name           : drm-latest-kmod
> > >> Version        : 6.12.1501501
> > >> Installed on   : Tue Aug 11 09:11:53 2026 CEST
> > >> Origin         : graphics/drm-latest-kmod
> > > Now X/Firefox went totally haywire and becomes unresponsive. Firefox
> > > churns away at 100% CPU and it doesn't take any kill -9 signals .
> > >
> > > Aug 12 08:23:51 garfield kernel: pid 3662 (Xorg), jid 0, uid 0: exited
> > > on signal 6 (core dumped)
> > >
> > > Aug 12 08:23:51 garfield devd[2121]: notify_clients: send() failed;
> > > dropping unresponsive client
> > >
> > > Aug 12 08:23:51 garfield syslogd: last message repeated 1 times
> > >
> > > Aug 12 08:23:51 garfield devd[2121]: check_clients:  dropping
> > > disconnected client
> > >
> > > Aug 12 08:23:51 garfield syslogd: last message repeated 1 times
> > >
> > > Aug 12 08:35:42 garfield pulseaudio[12113]: [] oss-util.c: '/dev/dsp0'
> > > doesn't support full duplex
> > >
> > > Aug 12 08:35:42 garfield pulseaudio[12113]: [] oss-util.c: '/dev/dsp2'
> > > doesn't support full duplex
> > >
> > > Aug 12 08:35:42 garfield pulseaudio[12113]: [] cli-command.c:
> > > stat('/usr/local/etc/pulse/default.pa.d'): No such file or directory
> > >
> > > Aug 12 08:36:24 garfield kernel: ked: page rename failed: page is mapped
> > >
> > > Aug 12 08:36:24 garfield kernel: lkpi_vmf_insert_pfn_prot_locked: page
> > > rename failed: page is mapped
> > >
> > >
> > >
> > >
> >
> >
>