From: Karl L. <klessard@Matrox.COM> - 2001-05-31 15:01:25
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We've saw this problem too when running Gears on XFree 4.0.3. The thing is that a lot of work has been done to the mga driver that fixes all those problems related to hardware lock ups, but it only has been included for the next release of XFree86, i.e. 4.1.0, a preview for this summer. If you are impatient to benefit from those fixes, you can have a look to their CVS code. Karl Michael Ledet wrote: > I'm having problems with lockups while using dri with the mga driver. I > can easily reproduce the problems by doing any of the following: > > 1) Run gears, then minimize the window its running in and then maximize > it. Actually, it seems to crash if I click on any other window while its > running. > > 2) Try to switch to another virtual console, .i.e ctrl-alt-f1 > > 3) While running armagetron (switch video modes from in a window to full > screen or vice versa) > > In all cases I get the following message in syslog > > kernel: [drm:mga_fire_primary] *ERROR* num_dwords == 0 when dispatched > > It will be repeated until I can ssh into the machine and kill the process > using openGL. Once the process is killed I regain control of my console. > > I'll see a message in syslog regarding the killed process like this: > Process 319 dead (ctx 3, d_s = 0x00) > note: The ctx and d_s are always the same values. > > If I try to run a program again, it locks immediately, but doesn't display > the kernel message listed above. However, if I kill the process from the > remote machine it will display the message "process xxx dead (ctx 3, d_s = > 0x00) > > I'm running XFree86 4.0.3 on a Debian (sid) system. I've tried the stock > mga driver and the one from Matrox, both give the same results. > > lspci shows the following > vision:/home/mledet# lspci > 00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev > 02) > 00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP] > 00:04.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] > (rev 22) > 00:04.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 10) > 00:04.2 USB Controller: VIA Technologies, Inc. UHCI USB (rev 10) > 00:04.3 USB Controller: VIA Technologies, Inc. UHCI USB (rev 10) > 00:04.4 Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] > (rev 30) > 00:0a.0 Multimedia audio controller: Ensoniq 5880 AudioPCI (rev 02) > 00:0b.0 Ethernet controller: 3Com Corporation 3c595 100BaseTX [Vortex] > 00:11.0 Unknown mass storage controller: Promise Technology, Inc. 20265 > (rev 02) > 01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP (rev > 04) > > > > > I also looked through the code the code and enabled debugging. > > Here is what I saw when it crashed after running gears. > > May 31 02:20:30 vision kernel: Debug [drm:mga_fire_primary] PRIMPTR in > mga_fire_primary > May 31 02:20:30 vision kernel: [drm:mga_fire_primary] *ERROR* num_dwords > == 0 when dispatched > May 31 02:20:30 vision kernel: Debug [drm:mga_fire_primary] PRIMPTR in > mga_fire_primary > May 31 02:20:30 vision kernel: [drm:mga_fire_primary] *ERROR* num_dwords > == 0 when dispatched > May 31 02:20:30 vision kernel: Debug [drm:mga_lock] 1 interrupted > May 31 02:20:38 vision last message repeated 457 times > > > I noticed the following message when trying to restart gears after it had crashed > once. > > May 31 02:21:27 vision kernel: Debug [drm:mga_dma_quiescent] exit, > dispatch_status = 0x00 > May 31 02:21:27 vision kernel: Debug [drm:mga_lock] _DRM_LOCK_QUIESCENT > May 31 02:21:27 vision kernel: Debug [drm:mga_dma_quiescent] > dispatch_status = 0x00 > May 31 02:21:27 vision kernel: Debug [drm:mga_dma_quiescent] quiescent > status : 800e0024 > May 31 02:21:27 vision kernel: Debug [drm:mga_dma_quiescent] exit, > dispatch_status = 0x00 > May 31 02:21:27 vision kernel: Debug [drm:mga_lock] _DRM_LOCK_QUIESCENT > May 31 02:21:27 vision kernel: Debug [drm:mga_dma_quiescent] > dispatch_status = 0x00 > May 31 02:21:27 vision kernel: Debug [drm:mga_dma_quiescent] quiescent > status : 800e0024 > May 31 02:21:27 vision kernel: Debug [drm:mga_dma_quiescent] exit, > dispatch_status = 0x00 > May 31 02:21:27 vision kernel: Debug [drm:mga_lock] _DRM_LOCK_QUIESCENT > > > Michael Ledet > Spire Network Services > > > > > > _______________________________________________ > Dri-devel mailing list > Dri...@li... > http://lists.sourceforge.net/lists/listinfo/dri-devel > > > |