Bug#490071: xorg occupies all cpu time
Andrea Vettorello wrote:
>> The last two days, without GDB, again it worked with no issues, so the
>> glitch, hardware or software, seems disappeared.
>>
>
> I spoken too early. Well, this time I was able to get a backtrace,
> don't know if useful:
>
> Program received signal SIGINT, Interrupt.
> 0xb7f0b424 in __kernel_vsyscall ()
> #0 0xb7f0b424 in __kernel_vsyscall ()
> #1 0xb7d77ed9 in ioctl () from /lib/i686/cmov/libc.so.6
> #2 0xb7aff23d in drmDMA () from /usr/lib/libdrm.so.2
> #3 0xb7a87f79 in RADEONCPGetBuffer (pScrn=0x9dcd8a0)
> at ../../src/radeon_accel.c:611
> #4 0xb7a88113 in RADEONCPFlushIndirect (pScrn=0x9dcd8a0, discard=1)
> at ../../src/radeon_accel.c:665
> #5 0xb7a929e3 in RADEONCPScanlinePacket (pScrn=0x9dcd8a0, bufno=0)
> at ../../src/radeon_accelfuncs.c:686
> #6 0xb7890878 in XAAWritePixmapScanline (pScrn=0x9dcd8a0, x=343, y=146,
> w=912, h=173, src=0xa5ded320 "<FF><FF><FF>", srcwidth=3648, rop=3,
> planemask=4294967295, trans=-1, bpp=32, depth=24)
> at ../../../../hw/xfree86/xaa/xaaImage.c:370
> #7 0xb7882448 in XAADoImageWrite (pSrc=0xa5bcd008, pDst=0xa10f230,
> pGC=0xa10c2a0, prgnDst=0xbfe26150, pptSrc=0xbfe260f0)
> at ../../../../hw/xfree86/xaa/xaaCpyArea.c:218
> #8 0xb7881bf2 in XAABitBlt (pSrcDrawable=0xa5bcd008, pDstDrawable=0xa10f230,
> pGC=0xa10c2a0, srcx=0, srcy=0, width=912, height=785, dstx=7, dsty=3,
> doBitBlt=0xb7882330 <XAADoImageWrite>, bitPlane=0)
> at ../../../../hw/xfree86/xaa/xaaBitBlt.c:203
> #9 0xb7882a3f in XAACopyArea (pSrcDrawable=0xa5bcd008,
> pDstDrawable=0xa10f230, pGC=0xa10c2a0, srcx=0, srcy=0, width=912,
> height=785, dstx=7, dsty=3) at ../../../../hw/xfree86/xaa/xaaCpyArea.c:66
> #10 0xb78c449a in cwCopyArea (pSrc=0xa5bcd008, pDst=0xa10f230, pGC=0xa10c2a0,
> srcx=0, srcy=0, w=912, h=785, dstx=7, dsty=3)
> at ../../../miext/cw/cw_ops.c:201
> #11 0x08177a26 in damageCopyArea (pSrc=0xa5bcd008, pDst=0xa10f230,
> pGC=0xa10c2a0, srcx=0, srcy=0, width=912, height=785, dstx=7, dsty=3)
> at ../../../miext/damage/damage.c:834
> #12 0x0808be86 in ProcCopyArea (client=0xa07bec0) at ../../dix/dispatch.c:1802
> #13 0x08155004 in XaceCatchDispatchProc (client=0xa07bec0)
> at ../../Xext/xace.c:281
> #14 0x0808de64 in Dispatch () at ../../dix/dispatch.c:502
> #15 0x08074795 in main (argc=9, argv=0xbfe26844, envp=
> Cannot access memory at address 0xc0286431
> ) at ../../dix/main.c:452
>
Did you check that Xorg was actually stuck in there ?
You should interrupt the process and get the backtrace, then hit 'c' to
make the process continue, interrupt again, ... several times and
compare the backtraces.
Brice
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