Re: [Intel-gfx] panning crash
Chris Wilson composed on 2015-06-13 09:19 (UTC+0100): Thank you for responding! On Sat, Jun 13, 2015 at 02:17:34AM -0400, Felix Miata wrote: Dell Optiplex GX280 P4 32 bit Hyperthreading enabled 0F34 2.8GHz CPU 00:02.0 VGA compatible controller: Intel Corporation 82915G/GV/910GL Integrated Graphics Controller (rev 04) /etc/X11/xinit/xinitrc.d/setup contains: xrandr --fbmm 387x218 --fb 2560x1440 --output VGA1 --mode 1920x1440 --panning 2560x1440 Panning mouse out of initial CRTC desktop space into virtual desktop space and back in some installations causes crash, in others not. Can someone here tell if this is a kernel, server or other issue and not a driver issue from a look at Xorg.0.log? My suspicion is kernel as primary if not sole. I think the crash is in the rejection handling code. If the kernel rejects the modeset, we try again with via a shadow. The crash is very unexpected. You can run the stacktraces though addr2line (e.g. addr2line -i -e /usr/lib/xorg/modules/drivers/intel_drv.so 0x638f7 0x68fbc 0x6a02b) Brief googling this didn't find anything I can grok. It's probably doable with minimal hand-holding, e.g. a URL explaining what tools need to be installed (gdb + ???) and how to use them. Debugging is something I do so infrequently I forget everything I managed to slog through from one session to the next. but also compiling your own ddx with --enable-debug=full would be very useful. Not doable. I tried programming in college over 4 decades ago. English remains as much language as I can cope with, and not even that much WRT OBS. OTOH, RPMs I can deal with. A drm.debug=6 dmesg would tell you what is going on kernel side. Tell you maybe. :-) http://fm.no-ip.com/Tmp/Linux/Xorg/Igfx/panfault/ Fedora 21, kernel 4.0.4: dmsg-i915G-f21-k404crash.txt Tumbleweed, kernel 4.0.4: dmsg-i915G-os133-k404crash.txt Looks like maybe the crash occurred in the vicinity of [433.26] in F21, [111.57] in TW, but there's minimal sense I can make of dmesg generally. All this said, crash didn't happen in Rawhide, so maybe it's a kernel problem that has resolved itself post-4.0.4? HTH -- The wise are known for their understanding, and pleasant words are persuasive. Proverbs 16:21 (New Living Translation) Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/ ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
[Intel-gfx] panning crash
Dell Optiplex GX280 P4 32 bit Hyperthreading enabled 0F34 2.8GHz CPU 00:02.0 VGA compatible controller: Intel Corporation 82915G/GV/910GL Integrated Graphics Controller (rev 04) /etc/X11/xinit/xinitrc.d/setup contains: xrandr --fbmm 387x218 --fb 2560x1440 --output VGA1 --mode 1920x1440 --panning 2560x1440 Panning mouse out of initial CRTC desktop space into virtual desktop space and back in some installations causes crash, in others not. Can someone here tell if this is a kernel, server or other issue and not a driver issue from a look at Xorg.0.log? My suspicion is kernel as primary if not sole. Successes: Rawhide, kernel 4.1.0-0.rc7, driver 2.99.917, server 1.17.1, KDE5 Mageia 5, kernel 3.19.8, driver 2.99.917, server 1.16.4, KDE4 openSUSE 13.1, kernel 3.12.39, driver 2.99.917, server 1.15.99.903, KDE3 openSUSE 13.2, kernel 3.16.7, driver 2.99.917, server 1.17.1, KDE3 Failures: Fedora 21, kernel 4.0.4, driver 2.99.916, server 1.16.3, KDE4 Tumbleweed, kernel 4.0.4, driver 2.99.917, server 1.17.1, KDE3 Skipped testing due to unrelated issue (refuses mode 1920x1440 that xrandr claims available, uses 1600x1200 instead, and no crashing): Fedora 22, kernel 4.0.5, driver 2.99.917, server 1.17.1, KDE5 Logs: http://fm.no-ip.com/Tmp/Linux/Xorg/Igfx/panfault/ -- The wise are known for their understanding, and pleasant words are persuasive. Proverbs 16:21 (New Living Translation) Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/ ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Re: [Intel-gfx] panning crash
On Sat, Jun 13, 2015 at 02:17:34AM -0400, Felix Miata wrote: Dell Optiplex GX280 P4 32 bit Hyperthreading enabled 0F34 2.8GHz CPU 00:02.0 VGA compatible controller: Intel Corporation 82915G/GV/910GL Integrated Graphics Controller (rev 04) /etc/X11/xinit/xinitrc.d/setup contains: xrandr --fbmm 387x218 --fb 2560x1440 --output VGA1 --mode 1920x1440 --panning 2560x1440 Panning mouse out of initial CRTC desktop space into virtual desktop space and back in some installations causes crash, in others not. Can someone here tell if this is a kernel, server or other issue and not a driver issue from a look at Xorg.0.log? My suspicion is kernel as primary if not sole. I think the crash is in the rejection handling code. If the kernel rejects the modeset, we try again with via a shadow. The crash is very unexpected. You can run the stacktraces though addr2line (e.g. addr2line -i -e /usr/lib/xorg/modules/drivers/intel_drv.so 0x638f7 0x68fbc 0x6a02b) but also compiling your own ddx with --enable-debug=full would be very useful. A drm.debug=6 dmesg would tell you what is going on kernel side. -Chris -- Chris Wilson, Intel Open Source Technology Centre ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
