On Thu, Oct 05, 2006 at 02:41:10AM +0200, Enrico Forestieri wrote: > On Wed, Oct 04, 2006 at 07:17:47PM +0200, Andre Poenitz wrote: > > iiiiiiOn Tue, Oct 03, 2006 at 11:13:03PM +0200, Enrico Forestieri wrote: > > > Program received signal SIGSEGV, Segmentation fault. > > > 0x00b61a38 in comp_func_solid_Source () > > > (gdb) bt > > > #0 0x00b61a38 in comp_func_solid_Source () > > > #1 0x00b2d29e in blend_color_generic () > > > #2 0x00a43c74 in drawLine_midpoint_i () > > > #3 0x00a4c2ed in QRasterPaintEngine::drawPolygon () > > > > Welcome to the joys of the Raster Painter, the best thing > > since the invention of sliced bread... > > ;-) > > > Can you get hold of a backtrace with full debug info? > > Unfortunately I am not able to build LyX with debug info anymore > (I remember I could before the unicode hurricane). The final link > stage fails because I have not enough memory (256 Mb here). > > > Also, which version of Qt is this? > > 4.1.4
That's not bad... > > For a while it was fairly easy to crash the raster painter with > > coordinates that were "much" larger thatn the screen. > > > > I'd suspect that this is the case here, too, but to make sure I'd > > have to seen the actual coordinates. > > This is what gets passed to drawPolyline just before the crash: > > i xp[i] yp[i] > -------------- > 0) 109 396 > 1) 109 397 > 2) 111 398 > 3) 113 399 > 4) 111 400 > 5) 109 401 > 6) 109 402 > > but I also saw some negative values for yp[i] a bit before the crash, > such as (they were in sequence): > > 0) 368, -12 > 1) 368, -11 > 2) 370, -10 > 3) 372, -9 > 4) 370, -8 > 5) 368, -7 > 6) 368, -6 > > 0) 401, -12 > 1) 401, -11 > 2) 403, -10 > 3) 405, -9 > 4) 403, -8 > 5) 401, -7 > 6) 401, -6 > > 0) 439, -12 > 1) 439, -11 > 2) 441, -10 > 3) 443, -9 > 4) 441, -8 > 5) 439, -7 > 6) 439, -6 > > 0) 586, -12 > 1) 586, -11 > 2) 588, -10 > 3) 590, -9 > 4) 588, -8 > 5) 586, -7 > 6) 586, -6 That should be harmless. The crashs I've seen came in the range of a few thousand pixels off (less than the 'usual' 2^15 limit for X servers anyway) So if that's a bug in the raster painter it's none I've seen before... Andre'
