Description of problem: Pressed alt+tab. I think that just pressing alt+tab fast for some time can reproduce it. Version-Release number of selected component: emerald-0.8.14-1.fc25 Additional info: reporter: libreport-2.8.0 backtrace_rating: 4 cmdline: /usr/bin/emerald --replace crash_function: _cairo_tor_scan_converter_create executable: /usr/bin/emerald global_pid: 2527 kernel: 4.10.13-200.fc25.x86_64 pkg_fingerprint: 4089 D8F2 FDB1 9C98 pkg_vendor: Fedora Project runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (10 frames) #6 _cairo_tor_scan_converter_create at cairo-tor-scan-converter.c:1875 #7 composite_polygon at cairo-spans-compositor.c:788 #8 clip_and_composite_polygon at cairo-spans-compositor.c:967 #9 _cairo_spans_compositor_fill at cairo-spans-compositor.c:1174 #10 _cairo_compositor_fill at cairo-compositor.c:203 #11 _cairo_image_surface_fill at cairo-image-surface.c:985 #12 _cairo_surface_fill at cairo-surface.c:2341 #13 _cairo_gstate_fill at cairo-gstate.c:1317 #14 _cairo_default_context_fill at cairo-default-context.c:1055 #15 cairo_fill at cairo.c:2205
Created attachment 1277045 [details] File: backtrace
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Created attachment 1277047 [details] File: core_backtrace
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Created attachment 1277050 [details] File: limits
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Created attachment 1277054 [details] File: open_fds
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Created attachment 1277056 [details] File: var_log_messages
I tried hard to press alt-tab with f26 (mate session + compiz + emerald + nvidia), but no luck to reproduce it. I will see if there is is a different with f25 next time i boot in it.
Thanks for reply. For me it's happening quite often (e.g. once per day or more) during normal desktop usage. I am using it together with compiz and only emerald crashes. I am using legacy engine with the Sky theme with the Xfce.
(In reply to Jaroslav Škarvada from comment #14) > Thanks for reply. For me it's happening quite often (e.g. once per day or > more) during normal desktop usage. I am using it together with compiz and > only emerald crashes. I am using legacy engine with the Sky theme with the > Xfce. I think it's Sky, but I am not 100% sure. But I am sure it's legacy engine.
It's intel graphics card.
I tried with f25 (mate session, emerald with sky theme, nvidia) but i couldn't duplicate the issue after pressing crtl+alt several minutes and running f25 a while. My feeling is that we have another issue with the combination (emerald, cairo and intel). Well, i will try it out with my notebook (intel), but i don't really use it for my daily work if i am not travelling. And i will use emerald a while with f26 on my main box which i use all the time. Can you try to eliminate some components which are involved? Ie. using another emerald theme or switching to gtk-decorator or using nvidia if possible? To find out more hints.
Btw. i forgot to ask explicit. The issue is new with 0.8.14 update?
Thanks for reply. It's probably not Intel driver, I am running xf86-video-modesetting, but IIRC it crashed the same way with the Intel driver. Maybe it's related to the compiz plugins I have enabled. But it's only emerald crashing and it's crashing quite often (in average cca. 1-3 times per day). It crashes usually when I press ALT+TAB. Also I am not sure how long you need to press ALT+TAB for reproducer, it looks like some race. I could provide my configs if you are interested. I am going to check different theme/decorator and let's see. IIRC it's crashing for few months at least, so probably it's not related to the 0.8.14 update. But I am also going to check with different emerald versions. This was the first "usable" core dump I was able to capture. Other crashes weren't captured by ABRT and I didn't have custom core pattern set.
Which dri are you using and which tab-switcher plugin?
Created attachment 1277603 [details] Compiz config (In reply to Wolfgang Ulbrich from comment #20) > Which dri are you using and which tab-switcher plugin? XOrg driver: modesetting and glamoregl E.g. [1]. It's default for f26+. I followed Xorg upstream also in f25 due to never ending problems with the Intel video driver. But the problem is reproducible also with the Intel video driver and IIRC I encountered it also in the f24. [1] https://www.phoronix.com/scan.php?page=news_item&px=Fedora-Xorg-Intel-DDX-Switch Attaching compiz config (with only non-default setting). Alt+tab is mapped to "Application switcher" plugin. Also I will try to prepare reliable reproducer.
Grettings from Alexei Sorokin. This should fix your issue. https://github.com/compiz-reloaded/emerald/commit/27d4e0dd0a9a39d0821e76a7f7e4199fe9b02740 I will provide a scratch build tomorrow, now it's to late.
Please test this scratch build https://koji.fedoraproject.org/koji/taskinfo?taskID=19493189
(In reply to Wolfgang Ulbrich from comment #23) > Please test this scratch build > https://koji.fedoraproject.org/koji/taskinfo?taskID=19493189 Thanks I am going to test it. I will provide feedback after few days of testing.
(In reply to Jaroslav Škarvada from comment #24) > (In reply to Wolfgang Ulbrich from comment #23) > > Please test this scratch build > > https://koji.fedoraproject.org/koji/taskinfo?taskID=19493189 > > Thanks I am going to test it. I will provide feedback after few days of > testing. I am running the test build since Friday and I encountered no crash, so it's probably resolves the issue. Thanks.
emerald-0.8.14-2.fc25 has been submitted as an update to Fedora 25. https://bodhi.fedoraproject.org/updates/FEDORA-2017-7557d2a7d4
emerald-0.8.14-2.fc25 has been pushed to the Fedora 25 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-7557d2a7d4
emerald-0.8.14-2.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.