[Dri-users] fire_buffer: DRM_VIA_PCICMD returned -22

[Benno S. <ben...@ju...>]

Hi,

Trying to run flightgear with today's CVS of both DRI and Mesa gives 
me "fire_buffer: DRM_VIA_PCICMD returned -22" immediately when the 
flightgear window appears.  In dmesg this appears:

[drm:investigate_hazard] *ERROR* Illegal DMA data: 0xfffffff0

And the whole output of running fgfs:

libGL: XF86DRIGetClientDriverName: 4.1.30 unichrome (screen 0)
libGL: OpenDriver: trying /usr/lib/modules/dri/unichrome_dri.so
drmOpenByBusid: Searching for BusID PCI:1:0:0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 6, (OK)
drmOpenByBusid: drmOpenMinor returns 6
drmOpenByBusid: drmGetBusid reports pci:0000:01:00.0
__driCreateNewScreen - succeeded
libGL: Can't open configuration file /etc/drirc: No such file or 
directory.
0000:   f210f110  00010000  00030c00  43ffffff
0010:   44000cff  104ef200  11000000  12230ca0
0020:   15000000  23000000  24000000  33000700
0030:   7b000000  cccccccc  f210f110  00010000
0040:   70000258  7128432c  40400100  41000000
0050:   7c013000  42010660  f210f110  00010000
0060:   cccccccc  dddddddd  f210f110  00000000
0070:   ec00741c  ee02105c  00000000  44160000
0080:   3f000000  ff000000  44480000  44160000
0090:   3f000000  ff000000  44480000  00000000
00a0:   3f000000  ff000000  00000000  00000000
00b0:   3f000000  ff000000  ee12135c  f210f110
00c0:   00010000  00030ce0  43ffffff  44000cff
00d0:   104ef200  11000000  12230ca0  15000000
00e0:   23000000  24000000  33000700  7b000000
00f0:   f210f110  fe020000  00000001  00000000
0100:   f210f110  00010000  00030ce0  00030ce0
0110:   f210f110  00020000  7b990003  77000000
0120:   4b000008  51000008  200000c0  009715e0
0130:   2ba00000  78002085  79120000  8080c080
0140:   81001002  82400000  8380c183  86000000
0150:   89000000  8a000000  85000000  87000000
0160:   88000000  7e000000  7f000000  fffffff0
0170:   f210f110  00010000  cccccccc  dddddddd
0180:   f210f110  00000000  ec007d9c  ee02105c
0190:   43100000  440b0000  3f000000  3f800000
01a0:   ffffffff  00000000  00000000  44240000
01b0:   440b0000  3f000000  3f800000  ffffffff
01c0:   3f800000  00000000  44240000  422ffffe
01d0:   3f000000  3f800000  ffffffff  3f800000
01e0:   3f800000  43100000  422ffffe  3f000000
01f0:   3f800000  ffffffff  00000000  3f800000
0200:   ee12135c  f210f110  00010000  00030c00
0210:   43ffffff  44000cff  104ef200  11000000
0220:   12230ca0  15000000  23000000  24000000
0230:   33000700  7b000000  f210f110  00010000
0240:   cccccccc  dddddddd  f210f110  00000000
0250:   ec00741c  ee02105c  41400000  44160000
0260:   3f000000  ff000000  444b0000  44160000
0270:   3f000000  ff000000  444b0000  00000000
0280:   3f000000  ff000000  41400000  00000000
0290:   3f000000  ff000000  ee12135c  f210f110
02a0:   00010000  00030ce0  43ffffff  44000cff
02b0:   104ef200  11000000  12230ca0  15000000
02c0:   23000000  24000000  33000700  7b000000
02d0:   f210f110  fe020000  00000000  00000000
02e0:   f210f110  00010000  00030ce0  00030ce0
02f0:   f210f110  00020000  7b990003  77000000
0300:   4b000008  51000008  200000c0  009715e0
0310:   2ba00000  78002085  79120000  8080c080
0320:   81001002  82400000  8380c183  86000000
0330:   89000000  8a000000  85000000  87000000
0340:   88000000  7e000000  7f000000  fffffff0
0350:   f210f110  00010000  cccccccc  dddddddd
0360:   f210f110  00000000  ec007d9c  ee02105c
0370:   431c0000  440b0000  3f000000  3f800000
0380:   ffffffff  00000000  00000000  44270000
0390:   440b0000  3f000000  3f800000  ffffffff
03a0:   3f800000  00000000  44270000  422ffffe
03b0:   3f000000  3f800000  ffffffff  3f800000
03c0:   3f800000  431c0000  422ffffe  3f000000
03d0:   3f800000  ffffffff  00000000  3f800000
03e0:   ee12135c  00000000  00000000  00000000
******************************************
fire_buffer: DRM_VIA_PCICMD returned -22
Aborted

What is going wrong here?

Running kernel 2.6.10, drm 2.5.0 (linux-2.6), unichrome r30, Mesa 
CVS, glibc-2.3.4.20050125 and gcc-3.4.3-20050110.

Benno