reassign 271111 libart-lgpl tags 271111 patch thankyou -- Ilya Konstantinov wrote: > When running, gok prints out the following output and terminates: > /dev/js0: No such file or directory > 0 event types available > login mode = false > Word prediction dictionary contains a total of 3000 words > gok: art_render_gradient.c:337: art_render_gradient_linear_render_8: > Assertion (stops[ix-1].offset <= offset_fraction + 1e-6) || > ((stops[ix].offset > (1.0 - 1e-6)) && (offset_fraction < 1e-6 ))' > failed. > Aborted
I found the very same bug using Trinity Desktop in Ubuntu (but not in Debian). When opening /usr/share/applications, konqueror aborts with this: konqueror: art_render_gradient.c:337: art_render_gradient_linear_render_8: Assertion `(stops[ix-1].offset <= offset_fraction + 1e-6) || ((stops[ix].offset > (1.0 - 1e-6)) && (offset_fraction < 1e-6 ))' failed. It seems to happen when reading softwarecenter.desktop and trying to open /usr/share/icons/hicolor/16x16/apps/softwarecenter.svg. Debugging info: KDEDesktopMimeType::pixmap (this=0x7a9cc0, _url=..., _group=KIcon::Desktop, _force_size=16, _state=0, _path=0x0) at /usr/local/src/bug-kicker-konqueror/kdelibs-trinity-3.5.13/kio/kio/kmimetype.cpp:753 KIconLoader::loadIcon (this=0x4cede0, _name=..., group=KIcon::Desktop, size=16, state=0, path_store=0x0, canReturnNull=false) at /usr/local/src/bug-kicker-konqueror/kdelibs-trinity-3.5.13/kdecore/kiconloader.cpp:762 KSVGIconEngine::load (this=0x97b6f0, width=16, height=16, path=...) at /usr/local/src/bug-kicker-konqueror/kdelibs-trinity-3.5.13/kdecore/svgicons/ksvgiconengine.cpp:658 KSVGIconEngineHelper::handleTags (this=0xb2c470, element=..., paint=true) at /usr/local/src/bug-kicker-konqueror/kdelibs-trinity-3.5.13/kdecore/svgicons/ksvgiconengine.cpp:416 KSVGIconPainter::drawPath (this=0x898500, data=..., filled=true) at /usr/local/src/bug-kicker-konqueror/kdelibs-trinity-3.5.13/kdecore/svgicons/ksvgiconpainter.cpp:2303 KSVGIconPainterHelper::drawBPath (this=0xa61700, bpath=0xd031a0) at /usr/local/src/bug-kicker-konqueror/kdelibs-trinity-3.5.13/kdecore/svgicons/ksvgiconpainter.cpp:246 KSVGIconPainterHelper::drawPathInternal (this=0xa61700, vec=0xd03460, affine=0x7fffffff9c30) at /usr/local/src/bug-kicker-konqueror/kdelibs-trinity-3.5.13/kdecore/svgicons/ksvgiconpainter.cpp:398 KSVGIconPainterHelper::applyGradient (this=0xa61700, svp=0xd046d0, fill=true) at /usr/local/src/bug-kicker-konqueror/kdelibs-trinity-3.5.13/kdecore/svgicons/ksvgiconpainter.cpp:666 KSVGIconPainterHelper::applyGradient (this=0xa61700, svp=0xd046d0, ref=...) at /usr/local/src/bug-kicker-konqueror/kdelibs-trinity-3.5.13/kdecore/svgicons/ksvgiconpainter.cpp:565 KSVGIconPainterHelper::applyLinearGradient (this=0xa61700, svp=0xd046d0, ref=...) at /usr/local/src/bug-kicker-konqueror/kdelibs-trinity-3.5.13/kdecore/svgicons/ksvgiconpainter.cpp:481 art_render_invoke () from /usr/lib/libart_lgpl_2.so.2 art_svp_render_aa () from /usr/lib/libart_lgpl_2.so.2 art_render_invoke_callbacks () from /usr/lib/libart_lgpl_2.so.2 __GI___assert_fail (assertion=0x7ffff0477828 "(stops[ix-1].offset <= offset_fraction + 1e-6) || ((stops[ix].offset > (1.0 - 1e-6)) && (offset_fraction < 1e-6 ))", file=<optimized out>, line=337, function=<optimized out>) at assert.c:81 It's related to this bug: http://bugzilla.gnome.org/155472. The patch suggested at this time (2004!) by Brian Tarricone was never applied to libart but I think it should have been. Please consider including it in Debian. I'm not forwarding this bug to bugzilla.gnome.org. They didn't applied this patch in 2004 and they closed all bugs relating to libart-lgpl, in August 2011, because it's unmaintained. Neither am I opening a bug in Ubuntu since I think it's not 'Ubuntu-specific'. The bug doesn't happen in Debian but it is in Debian's libart_lgpl. (I made another bug report at http://bugs.pearsoncomputing.net/554.) (Patch attached) -- Laurent Dard
Origin: other, http://bugzilla.gnome.org/155472#c1 Bug-Gnome: http://bugzilla.gnome.org/155472 Bug-Debian: http://bugs.debian.org/271111 Bug-Trinity:http://bugs.pearsoncomputing.net/554 Forwarded: http://bugzilla.gnome.org/155472#c1 Author: Brian J. Tarricone <bj...@cornell.edu> Applied-Upstream: no Description: Removes assert() statements that makes applications crash. Several applications (Xfce Desktop, Trinity Desktop, gok...) have been reported to crash when trying to render SVG files, because of asserts in the 'art_render_gradient_linear_render_8' function, in file art_render_gradient.c. Now unmaintained by upstream (see http://bugzilla.gnome.org/155472#c4) --- libart-lgpl.orig/art_render_gradient.c.orig 2004-10-15 00:41:51.444732640 -0700 +++ libart-lgpl/art_render_gradient.c 2004-10-15 00:45:47.125903656 -0700 @@ -30,7 +30,9 @@ #include <stdlib.h> #include <stdio.h> #include <string.h> +#if 0 #include <assert.h> +#endif /* Hack to find out how to define alloca on different platforms. * Modified version of glib/galloca.h. @@ -203,7 +205,9 @@ } printf ("WARNING! bad ix %d in calc_color_at() [internal error]\n", ix); +#if 0 assert (0); +#endif } static void @@ -331,6 +335,7 @@ printf ("Initial ix: %d\n", ix); #endif +#if 0 assert (ix > 0); assert (ix < n_stops); assert ((stops[ix-1].offset <= offset_fraction + EPSILON) || @@ -344,6 +349,17 @@ assert ((offset_fraction != stops[ix].offset) || (d_offset <= 0.0)); */ +#else + if (!( (ix > 0) && (ix < n_stops) + && ((stops[ix-1].offset <= offset_fraction + EPSILON) || + ((stops[ix].offset > (1.0 - EPSILON)) + && (offset_fraction < EPSILON /* == 0.0*/))) + && (offset_fraction <= stops[ix].offset))) + { + printf ("art_render_gradient.c:%d: Old assert() failed!\n", __LINE__); + return; + } +#endif while (width > 0) {
