> Thanks. Unfortunately, even trying to replicate that, I haven't been
> able to reproduce it. As you seem able to reproduce it easily (after how
> much time on average?), it would be great if you could attach gdb to the
> X server process, then reproduce the crash and get a backtrace (see
> http://wiki.debian.org/XStrikeForce/XserverDebugging#Which_debugging_packages_do_I_need.3F
> and the following paragraph).
I'll get a crash in less than five minutes with one of the two
reproducers. Running each xscreensaver ten minutes at a time was how
I isolated the two problem ones.
The backtrace below was produced by celtic -root, with perahps
three minutes of runtime. This was with the stock squeeze X server,
not backports.
Is it possible we're chasing slightly dodgy hardware?
#0 0x00007fd8a3304165 in raise () from /lib/libc.so.6
No symbol table info available.
#1 0x00007fd8a3306f70 in abort () from /lib/libc.so.6
No symbol table info available.
#2 0x00007fd8a32fd2b1 in __assert_fail () from /lib/libc.so.6
No symbol table info available.
#3 0x00007fd8a0e2d8de in ?? () from /usr/lib/libdrm_radeon.so.1
No symbol table info available.
#4 0x00007fd8a10f61d9 in set_vtx_resource (pScrn=<value optimized out>,
ib=0x0, res=0x7fffda88c5b0, domain=2) at ../../src/r6xx_accel.c:536
_ret = <value optimized out>
info = 0x20e4fa0
sq_vtx_constant_word2 = 2048
__func__ = "set_vtx_resource"
#5 0x00007fd8a10fefdc in r600_finish_op (pScrn=0x20e1470,
vtx_size=<value optimized out>) at ../../src/r6xx_accel.c:1235
info = 0x20e4fa0
accel_state = 0x20eccf0
draw_conf = {prim_type = 0, vgt_draw_initiator = 0, index_type = 0,
num_instances = 0, num_indices = 0}
vtx_res = {id = 160, vb_addr = 0, vtx_num_entries = 4092,
vtx_size_dw = 2, clamp_x = 0, format = 0, num_format_all = 0,
format_comp_all = 0, srf_mode_all = 0, endian = 0, mem_req_size = 1,
bo = 0x25b3510}
#6 0x00007fd8a10ff14d in r600_vb_no_space (pScrn=0x729, vert_size=1833)
at ../../src/r6xx_accel.c:1272
info = 0x20e4fa0
accel_state = 0x20eccf0
#7 0x00007fd8a10f148a in radeon_vbo_space (pPix=<value optimized out>,
x1=515, y1=499, x2=516, y2=500) at ../../src/radeon_vbo.h:32
vb = <value optimized out>
#8 R600Solid (pPix=<value optimized out>, x1=515, y1=499, x2=516, y2=500)
at ../../src/r600_exa.c:466
pScrn = 0x20e1470
info = <value optimized out>
accel_state = 0x20eccf0
#9 0x00007fd8a03f06a5 in exaFillRegionSolid (pDrawable=0x212f7b0,
pRegion=0x2587470, pixel=<value optimized out>,
planemask=<value optimized out>, alu=<value optimized out>,
clientClipType=<value optimized out>) at ../../exa/exa_accel.c:1031
nbox = 90798
pBox = 0x7fd89ea6fb48
pExaScr = 0x2100880
pPixmap = 0x2129890
xoff = 0
yoff = 0
ret = <value optimized out>
#10 0x00007fd8a03f123a in exaPolyFillRect (pDrawable=0x212f7b0, pGC=0x25b57a0,
nrect=1021, prect=0x25c9d40) at ../../exa/exa_accel.c:812
pClip = 0x212f800
pPixmap = 0x2129890
pbox = <value optimized out>
extentX1 = 106
extentX2 = -628569960
extentY1 = 0
extentY2 = 34773488
fullX1 = <value optimized out>
fullX2 = <value optimized out>
fullY1 = <value optimized out>
fullY2 = <value optimized out>
partX1 = <value optimized out>
partX2 = <value optimized out>
partY1 = <value optimized out>
partY2 = <value optimized out>
xoff = <value optimized out>
yoff = <value optimized out>
xorg = 0
yorg = 8208
pReg = 0x2587470
#11 0x00007fd8a03ee63e in exaPolySegment (pDrawable=0x212f7b0, pGC=0x25b57a0,
nseg=1021, pSeg=<value optimized out>) at ../../exa/exa_accel.c:758
prect = 0x25c9d40
i = <value optimized out>
#12 0x00000000004dd9bb in damagePolySegment (pDrawable=0x212f7b0,
pGC=0x25b57a0, nSeg=1021, pSeg=0x2656dfc)
at ../../../miext/damage/damage.c:1191
pGCPriv = 0x2546770
oldFuncs = 0x7c7100
#13 0x00000000004464f4 in ProcPolySegment (client=0x25a7770)
at ../../dix/dispatch.c:1849
nsegs = 6
pGC = 0x25b57a0
pDraw = 0x212f7b0
#14 0x0000000000448c84 in Dispatch () at ../../dix/dispatch.c:439
result = <value optimized out>
client = 0x25a7770
nready = 0
start_tick = 6860
#15 0x0000000000425c35 in main (argc=9, argv=0x7daf48,
envp=<value optimized out>) at ../../dix/main.c:283
i = 1
alwaysCheckForInput = {0, 1}
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