maintainer-feedback requested: [Bug 254472] graphics/drm-fbsd13-kmod Xorg crash on resume

[bugzilla-noreply at freebsd.org]

Bugzilla Automation <bugzilla at FreeBSD.org> has asked freebsd-x11 (Nobody)
<x11 at FreeBSD.org> for maintainer-feedback:
Bug 254472: graphics/drm-fbsd13-kmod Xorg crash on resume
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254472



--- Description ---
I am having Xorg crash on resume from sleep on my i915 system running 13.0-RC3
(and previous beta's and RC's).

here's the driver version:
drm-fbsd13-kmod-5.4.92.g20210202

and here is the trace from Xorg.0.log when it fails to resume:
[  3576.299] (EE) Backtrace:
[  3576.303] (EE) 0: /usr/local/bin/Xorg (?+0x0) [0x41dc30]
[  3576.307] (EE) unw_get_proc_name failed: no unwind info found [-10]
[  3576.307] (EE) 1: /lib/libthr.so.3 (?+0x0) [0x80092adc0]
[  3576.310] (EE) unw_get_proc_name failed: no unwind info found [-10]
[  3576.310] (EE) 2: /lib/libthr.so.3 (?+0x0) [0x80092a320]
[  3576.313] (EE) 3: ? (?+0x0) [0x7ffffffff193]
[  3576.317] (EE) unw_get_proc_name failed: no unwind info found [-10]
[  3576.317] (EE) 4: /lib/libc.so.7 (?+0x0) [0x800aa22b0]
[  3576.320] (EE) 5: /usr/local/lib/dri/iris_dri.so (?+0x0) [0x802d77460]
[  3576.324] (EE) 6: /usr/local/lib/dri/iris_dri.so (?+0x0) [0x802d7ead0]
[  3576.327] (EE) 7: /usr/local/lib/dri/iris_dri.so (?+0x0) [0x802316b60]
[  3576.331] (EE) 8: /usr/local/lib/libEGL.so.1 (?+0x0) [0x808049cc0]
[  3576.334] (EE) 9: /usr/local/lib/libEGL.so.1 (?+0x0) [0x80803c640]
[  3576.337] (EE) 10: /usr/local/lib/xorg/modules/libglamoregl.so (?+0x0)
[0x801b62720]
[  3576.340] (EE) 11: /usr/local/lib/xorg/modules/libglamoregl.so (?+0x0)
[0x801b63970]
[  3576.343] (EE) 12: /usr/local/lib/xorg/modules/drivers/modesetting_drv.so
(?+0x0) [0x801b330b0]
[  3576.346] (EE) 13: /usr/local/lib/xorg/modules/drivers/modesetting_drv.so
(?+0x0) [0x801b2e530]
[  3576.348] (EE) 14: /usr/local/bin/Xorg (?+0x0) [0x29d6f0]
[  3576.353] (EE) 15: /usr/local/bin/Xorg (?+0x0) [0x2e55a0]
[  3576.356] (EE) 16: /usr/local/bin/Xorg (?+0x0) [0x2a1610]
[  3576.359] (EE) 17: /usr/local/bin/Xorg (?+0x0) [0x28a330]
[  3576.362] (EE) 18: ? (?+0x0) [0x800458008]

subsequent starts of Xorg will fail in a similar manner until I unload and
reload the i915kms.ko.	After that Xorg starts and I am OK for several
suspend/resume cycles.