| Summary: | crash trying to open svg file with epiphany | ||
|---|---|---|---|
| Product: | cairo | Reporter: | Jens Granseuer <jensgr> |
| Component: | general | Assignee: | Carl Worth <cworth> |
| Status: | RESOLVED FIXED | QA Contact: | cairo-bugs mailing list <cairo-bugs> |
| Severity: | critical | ||
| Priority: | medium | ||
| Version: | 1.4.2 | ||
| Hardware: | x86 (IA32) | ||
| OS: | Linux (All) | ||
| URL: | http://bugzilla.gnome.org/attachment.cgi?id=85963&action=view | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
Looking at the very small tolerance and pen radius immediately suggests a couple of bug fixes that could explain why epiphany now handles the svg fine (aside from a bug in epiphany's handling of svg that avoids the issue). My best guess was that this was the degenerate-pen bug... |
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When opening the URL above with epiphany, it crashes in cairo code with the following stack trace: #0 0x40ca342c in _cairo_stroker_start_dash (stroker=0xbfffd4a4) at cairo-path-stroke.c:126 #1 0x40ca3626 in _cairo_stroker_init (stroker=0xbfffd4a4, stroke_style=0x891d228, ctm=0xbfffd5b0, ctm_inverse=0x891d228, tolerance=2.158804529898396e-267, traps=0xbfffd664) at cairo-path-stroke.c:174 #2 0x40ca507c in _cairo_path_fixed_stroke_to_traps (path=0x891d1f8, stroke_style=0x891d228, ctm=0xbfffd5b0, ctm_inverse=0x891d228, tolerance=2.158804529898396e-267, traps=0xbfffd664) at cairo-path-stroke.c:970 #3 0x41fa2a11 in _cairo_gstate_stroke_extents () from /opt/gnome2/lib/firefox-2.0.0.3/components/libgklayout.so (gdb) bt full #0 0x40ca342c in _cairo_stroker_start_dash (stroker=0xbfffd4a4) at cairo-path-stroke.c:126 offset = 4 on = 1 i = 0 #1 0x40ca3626 in _cairo_stroker_init (stroker=0xbfffd4a4, stroke_style=0x891d228, ctm=0xbfffd5b0, ctm_inverse=0x891d228, tolerance=2.158804529898396e-267, traps=0xbfffd664) at cairo-path-stroke.c:174 No locals. #2 0x40ca507c in _cairo_path_fixed_stroke_to_traps (path=0x891d1f8, stroke_style=0x891d228, ctm=0xbfffd5b0, ctm_inverse=0x891d228, tolerance=2.158804529898396e-267, traps=0xbfffd664) at cairo-path-stroke.c:970 status = 1001 stroker = {style = 0x891d228, ctm = 0xbfffd5b0, ctm_inverse = 0x891d228, tolerance = 2.158804529898396e-267, traps = 0xbfffd664, pen = { radius = -1.1767189646838646e-185, tolerance = 2.158804529898396e-267, vertices = 0x891d670, num_vertices = 4}, current_point = {x = 141891352, y = 70730883}, first_point = {x = 141890944, y = -1073752752}, has_initial_sub_path = 0, has_current_face = 0, current_face = {ccw = {x = 1086863088, y = 1086849024}, point = {x = -1073752764, y = 1073795011}, cw = {x = 1086863216, y = 1086849024}, dev_vector = {dx = -1073752748, dy = 1073795011}, usr_vector = { x = 1.4924074177245811e-313, y = 2.1010398864746094}}, has_first_face = 0, first_face = {ccw = {x = 143774248, y = -1073752656}, point = {x = 1073794798, y = 1108027228}, cw = {x = 143774248, y = -1073752656}, dev_vector = {dx = 282, dy = 1101244883}, usr_vector = {x = 14584940569.026825, y = 164950656.00000864}}, dashed = 1086863216, dash_index = 3221214668, dash_on = 1073795440, dash_starts_on = -1073752656, dash_remain = 13472.125} #3 0x41fa2a11 in _cairo_gstate_stroke_extents () from /opt/gnome2/lib/firefox-2.0.0.3/components/libgklayout.so No symbol table info available. And this looks odd: (gdb) p stroker->style->dash[i] Cannot access memory at address 0x1 (gdb) p stroker->style->dash $1 = (double *) 0x1 Trying to show the file with rsvg-view works fine. epiphany is 2.18.1, firefox 2.0.0.3, gtk+ 2.10.11 in case it matters.