Pidgin SEGV in gtk_style_context_get_valist()

[joakim-tjernlund]

Got this with latest launchpad branch(both pidgin and pidgin-sipe):

(19:19:46) Gtk: Style property "ythickness" is not registered (19:19:46) GLib-GObject: /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/gobject/gtype.c:4272: type id '0' is invalid (19:19:46) GLib-GObject: can't peek value table for type '' which is not currently referenced

Thread 1 "pidgin" received signal SIGSEGV, Segmentation fault.
0x00007ffff41bac33 in gtk_style_context_get_valist () from /usr/lib64/libgtk-3.so.0
(gdb) bt
#0  0x00007ffff41bac33 in gtk_style_context_get_valist () from /usr/lib64/libgtk-3.so.0
#1  0x00007ffff41baef3 in gtk_style_context_get () from /usr/lib64/libgtk-3.so.0
#2  0x00007ffff7b8f409 in ?? () from /usr/lib64/libpidgin.so.20
#3  0x00007ffff41210b9 in ?? () from /usr/lib64/libgtk-3.so.0
#4  0x00007ffff4124bdf in gtk_menu_popup_for_device () from /usr/lib64/libgtk-3.so.0
#5  0x00007ffff412506a in gtk_menu_popup () from /usr/lib64/libgtk-3.so.0
#6  0x00007ffff7b8f743 in ?? () from /usr/lib64/libpidgin.so.20
#7  0x00007ffff1bf61a4 in ?? () from /usr/lib64/libgobject-2.0.so.0
#8  0x00007ffff1c10687 in g_signal_emit_valist () from /usr/lib64/libgobject-2.0.so.0
#9  0x00007ffff1c10fff in g_signal_emit () from /usr/lib64/libgobject-2.0.so.0
#10 0x00007ffff1bf5f75 in g_closure_invoke () from /usr/lib64/libgobject-2.0.so.0
#11 0x00007ffff1c08301 in ?? () from /usr/lib64/libgobject-2.0.so.0
#12 0x00007ffff1c10d99 in g_signal_emit_valist () from /usr/lib64/libgobject-2.0.so.0
#13 0x00007ffff1c10fff in g_signal_emit () from /usr/lib64/libgobject-2.0.so.0
#14 0x00007ffff420483d in ?? () from /usr/lib64/libgtk-3.so.0
#15 0x00007ffff1bf5f75 in g_closure_invoke () from /usr/lib64/libgobject-2.0.so.0
#16 0x00007ffff1c07c24 in ?? () from /usr/lib64/libgobject-2.0.so.0
#17 0x00007ffff1c10d99 in g_signal_emit_valist () from /usr/lib64/libgobject-2.0.so.0
#18 0x00007ffff1c10fff in g_signal_emit () from /usr/lib64/libgobject-2.0.so.0
#19 0x00007ffff40175ed in ?? () from /usr/lib64/libgtk-3.so.0
#20 0x00007ffff4017655 in ?? () from /usr/lib64/libgtk-3.so.0
#21 0x00007ffff1bf5f75 in g_closure_invoke () from /usr/lib64/libgobject-2.0.so.0
#22 0x00007ffff1c07c24 in ?? () from /usr/lib64/libgobject-2.0.so.0
#23 0x00007ffff1c10d99 in g_signal_emit_valist () from /usr/lib64/libgobject-2.0.so.0
#24 0x00007ffff1c10fff in g_signal_emit () from /usr/lib64/libgobject-2.0.so.0
#25 0x00007ffff4015a40 in ?? () from /usr/lib64/libgtk-3.so.0
#26 0x00007fffe8d0a020 in ffi_call_unix64 () from /usr/lib64/libffi.so.6
#27 0x00007fffe8d09a88 in ffi_call () from /usr/lib64/libffi.so.6
#28 0x00007ffff1bf6bdc in g_cclosure_marshal_generic_va () from /usr/lib64/libgobject-2.0.so.0
#29 0x00007ffff1bf61a4 in ?? () from /usr/lib64/libgobject-2.0.so.0
#30 0x00007ffff1c10687 in g_signal_emit_valist () from /usr/lib64/libgobject-2.0.so.0
#31 0x00007ffff1c10fff in g_signal_emit () from /usr/lib64/libgobject-2.0.so.0
#32 0x00007ffff40cbd11 in ?? () from /usr/lib64/libgtk-3.so.0
#33 0x00007ffff1bf8f2e in g_cclosure_marshal_VOID__BOXEDv () from /usr/lib64/libgobject-2.0.so.0
#34 0x00007ffff1bf61a4 in ?? () from /usr/lib64/libgobject-2.0.so.0
#35 0x00007ffff1c10687 in g_signal_emit_valist () from /usr/lib64/libgobject-2.0.so.0
#36 0x00007ffff1c10fff in g_signal_emit () from /usr/lib64/libgobject-2.0.so.0
#37 0x00007ffff40c902e in ?? () from /usr/lib64/libgtk-3.so.0
#38 0x00007ffff40ca663 in ?? () from /usr/lib64/libgtk-3.so.0
#39 0x00007ffff40cd295 in ?? () from /usr/lib64/libgtk-3.so.0
#40 0x00007ffff409cd6b in gtk_event_controller_handle_event () from /usr/lib64/libgtk-3.so.0
#41 0x00007ffff4253853 in ?? () from /usr/lib64/libgtk-3.so.0
#42 0x00007ffff4112da9 in ?? () from /usr/lib64/libgtk-3.so.0
#43 0x00007ffff1bf61a4 in ?? () from /usr/lib64/libgobject-2.0.so.0
#44 0x00007ffff1c10130 in g_signal_emit_valist () from /usr/lib64/libgobject-2.0.so.0
#45 0x00007ffff1c10fff in g_signal_emit () from /usr/lib64/libgobject-2.0.so.0
#46 0x00007ffff42551ac in ?? () from /usr/lib64/libgtk-3.so.0
#47 0x00007ffff410ff6e in ?? () from /usr/lib64/libgtk-3.so.0
#48 0x00007ffff4111e38 in gtk_main_do_event () from /usr/lib64/libgtk-3.so.0
#49 0x00007ffff3c70215 in ?? () from /usr/lib64/libgdk-3.so.0
#50 0x00007ffff3c9d1c2 in ?? () from /usr/lib64/libgdk-3.so.0
#51 0x00007ffff77dee9d in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#52 0x00007ffff77df180 in ?? () from /usr/lib64/libglib-2.0.so.0
#53 0x00007ffff77df4a2 in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0
#54 0x00007ffff4111025 in gtk_main () from /usr/lib64/libgtk-3.so.0
#55 0x00007ffff7b97a24 in pidgin_start () from /usr/lib64/libpidgin.so.20
#56 0x00007ffff71f76d0 in __libc_start_main (main=0x400880 <main>, argc=0x2, argv=0x7fffffffd268, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, 
    stack_end=0x7fffffffd258) at libc-start.c:289
#57 0x0000000000400909 in _start ()
(gdb) 

[joakim-tjernlund]

gtk+3.20.9

Also, when the SEGV happens in gdb, my DE completely freezes. I had to open a second console and kill pidgin there to get back my DE

[xhaakon]

This seems like it's happening when you're opening some menu. What exactly were you doing right prior the crash?

Also, when the SEGV happens in gdb, my DE completely freezes. I had to open a second console and kill pidgin there to get back my DE

I guess this is because of the unfortunate way GTK+ popup menus work. They somehow steal all input events, and if the program halts in gdb on a breakpoint or because it crashed while a menu is opened, keyboard or mouse input stops being delivered to the DE and you can't do anything but kill gdb from another virtual console. That's a GTK+ bug/feature.

For debugging issues which concern GTK menus, I recommend running the application in a nested Xephyr window so that your main X session doesn't get frozen.

[joakim-tjernlund]

I am just clicking the "A Font" button. The same happens if I press "+ Insert"

There must be some option to gtk that "undoes" this feature, will goolge some

[xhaakon]

Yeah I can reproduce the crash with GTK+ 3.21.5. Also the button text has a weird black background.

[joakim-tjernlund]

Yes, weird black background too.

Also, status text window is way bigger now, it fits about 4-5 lines of text but I can only type in the first row.

[joakim-tjernlund]

Would it be possible to build with gtk+ 2 instead?

[xhaakon]

Pidgin 3 doesn't support GTK+ 2. But if you're building for Gentoo, you may try to switch to Pidgin's release-2.x.y branch which still does. Compile & install it, then rebuild pidgin-sipe. Not very tested but should work since all the important pieces should be already backported to 2.x Pidgin.

[joakim-tjernlund]

Oh, I figured pidgin 3 was required for sipe 3. I will test with pidgin 2

[joakim-tjernlund]

pidgin 2 works :) I can share my desktop but only share readonly.

Audio calls are unstable, often I cannot hear the other end. I can see this in Debug windown: 11:11:41) mediamanager: gst pipeline error: GStreamer encountered a general supporting library error. (11:11:41) mediamanager: Debug details: /var/tmp/portage/media-libs/gst-plugins-bad-1.6.3/work/gst-plugins-bad-1.6.3/ext/srtp/gstsrtpenc.c(1058): gst_srtp_enc_process_buffer (): /GstPipeline:pipeline0/GstBin:conf_0x7fcee800af60/FsRtpConference:fsrtpconference12/GstRtpBin:rtpbin12/GstSrtpEnc:srtpenc_1: Unable to protect buffer (protect failed) code 9 (11:11:41) backend-fs2: gst error GStreamer encountered a general supporting library error. debugging: /var/tmp/portage/media-libs/gst-plugins-bad-1.6.3/work/gst-plugins-bad-1.6.3/ext/srtp/gstsrtpenc.c(1058): gst_srtp_enc_process_buffer (): /GstPipeline:pipeline0/GstBin:conf_0x7fcee800af60/FsRtpConference:fsrtpconference12/GstRtpBin:rtpbin12/GstSrtpEnc:srtpenc_1: Unable to protect buffer (protect failed) code 9 (11:11:41) mediamanager: gst pipeline error: Internal data flow error. (11:11:41) mediamanager: Debug details: /var/tmp/portage/media-libs/gstreamer-1.6.3/work/gstreamer-1.6.3/libs/gst/base/gstbasesrc.c(2943): gst_base_src_loop (): /GstPipeline:pipeline0/GstBin:conf_0x7fcee800af60/FsRtpConference:fsrtpconference12/GstBin:bin40/GstNiceSrc:nicesrc28: streaming task paused, reason error (-5) (11:11:41) backend-fs2: gst error Internal data flow error. debugging: /var/tmp/portage/media-libs/gstreamer-1.6.3/work/gstreamer-1.6.3/libs/gst/base/gstbasesrc.c(2943): gst_base_src_loop (): /GstPipeline:pipeline0/GstBin:conf_0x7fcee800af60/FsRtpConference:fsrtpconference12/GstBin:bin40/GstNiceSrc:nicesrc28: streaming task paused, reason error (-5)

[xnandersson]

@joakim-tjernlund The audio issue might be this one https://github.com/tieto/sipe/issues/107

[joakim-tjernlund]

somewhat related.

Trying Video I get: 13:27:45) mediamanager: gst pipeline error: Internal data flow error. (13:27:45) mediamanager: Debug details: /var/tmp/portage/media-libs/gstreamer-1.8.2/work/gstreamer-1.8.2/libs/gst/base/gstbasesrc.c(2948): gst_base_src_loop (): /GstPipeline:pipeline0/GstBin:vvconfig-videosrc/GstBin:pidgindefaultvideosrc/GstAutoVideoSrc:autovideosrc0/GstVideoTestSrc:fake-auto-video-src: streaming task paused, reason not-negotiated (-4) (13:27:45) backend-fs2: gst error Internal data flow error. debugging: /var/tmp/portage/media-libs/gstreamer-1.8.2/work/gstreamer-1.8.2/libs/gst/base/gstbasesrc.c(2948): gst_base_src_loop (): /GstPipeline:pipeline0/GstBin:vvconfig-videosrc/GstBin:pidgindefaultvideosrc/GstAutoVideoSrc:autovideosrc0/GstVideoTestSrc:fake-auto-video-src: streaming task paused, reason not-negotiated (-4) (13:27:45) media: Error with your webcam

Any idea?

[joakim-tjernlund]

hmm, proably some gst codec missing, but which? I got: media-libs/gst-plugins-bad media-libs/gst-plugins-base media-libs/gst-plugins-good media-libs/gst-plugins-ugly media-plugins/gst-plugins-a52dec media-plugins/gst-plugins-cdparanoia media-plugins/gst-plugins-dts media-plugins/gst-plugins-dvdread media-plugins/gst-plugins-faad media-plugins/gst-plugins-flac media-plugins/gst-plugins-jpeg media-plugins/gst-plugins-libav media-plugins/gst-plugins-libnice media-plugins/gst-plugins-libpng media-plugins/gst-plugins-mad media-plugins/gst-plugins-meta media-plugins/gst-plugins-mpeg2dec media-plugins/gst-plugins-openh264 media-plugins/gst-plugins-pulse media-plugins/gst-plugins-resindvd media-plugins/gst-plugins-v4l2 media-plugins/gst-plugins-vaapi media-plugins/gst-plugins-vpx media-plugins/gst-plugins-x264

[joakim-tjernlund]

GST_DEBUG=3 gave me:
0:00:13.085157785 22011      0x1cdea70 WARN    fsrtpconference_disco fs-rtp-discover-codecs.c:1847:codec_blueprints_add_caps: Could not create send codec bin from blueprint for -1: video THEORA clock:90000 channels:0 params:(nil): Could not link element inside the send codec bin for pt 96
0:00:13.099343094 22011      0x1cdea70 WARN    fsrtpconference_disco fs-rtp-discover-codecs.c:1847:codec_blueprints_add_caps: Could not create send codec bin from blueprint for 33: video MP2T clock:90000 channels:0 params:(nil): Could not link element inside the send codec bin for pt 33
0:00:13.109690537 22011      0x1cdea70 WARN    fsrtpconference_disco fs-rtp-discover-codecs.c:1847:codec_blueprints_add_caps: Could not create send codec bin from blueprint for -1: video H265 clock:90000 channels:0 params:(nil): Could not link element inside the send codec bin for pt 96

So I guess I must get some of there codecs. I see that gentoo only has gst-0.10 for THEORA. The other ones I haven't found yet

[xhaakon]

/var/tmp/portage/media-libs/gstreamer-1.8.2
/var/tmp/portage/media-libs/gst-plugins-bad-1.6.3

Your installation looks rather all over the place. Could you try updating gst-plugins-bad and anything else that isn't the latest version?

[xhaakon]

Also do you have Farstream from https://github.com/tieto/farstream/tree/launchpad?

[joakim-tjernlund]

/var/tmp/portage/media-libs/.... This is Gentoo portage, it always builds and installs in a staging area and then merge all files into place, that is why it look a bit strange but it is all good :)

No, I don't have https://github.com/tieto/farstream/tree/launchpad, looking at it does not seem like there is much extra there but I will soon Currently I am looking at the missing codecs, THEORA, MP2T and H265. Maybe they are not relevant?

[xhaakon]

I'm not concerned about the "strange" path :) I meant the versions - 1.8.2 vs 1.6.3 differ pretty a lot.

[joakim-tjernlund]

Ahh, yes. I updated to 1.8.2 but obviusy I mised som gst packages. Will fix

[joakim-tjernlund]

https://github.com/tieto/farstream/tree/launchpad, did the trick! Now I can get a test image :) At least I got libnice from lanchpad ...

What about the read only shared desktop? Should it be that way?

[joakim-tjernlund]

took a look at FreeRDP upstream w.r.t lanchpad. Look to like lanchpad is fairly behind upstream now?

[joakim-tjernlund]

... and upstream freerdp does not work w.r.t sharing desktop :(

[joakim-tjernlund]

.. but it does, I screwed up my new farstrem so nothing worked, sorry

[xhaakon]

What about the read only shared desktop? Should it be that way?

By "read only" you mean that the person you are sharing your desktop with isn't able to remote-control it? Please read this thread. TL;DR version: Remote control should work when you're sharing with one of your buddies, but isn't supported in conference meetings.

[joakim-tjernlund]

Ahh, I only get that "desktop control" while sharing, thanks. The audio issue is what remains but I am not alone there it seems

[joakim-tjernlund]

So tried to share again an got this error sevral times: MESSAGE END >>>>>>>>>> SIP - 2016-09-16T14:39:49.393716Z (16:39:49) sipe: process_input_message: removing CSeq 2 (16:39:49) sipe: SIP transactions count:0 after removal (16:39:49) backend-fs2: farstream-component-state-changed: component: 1 state: CONNECTING (16:39:49) backend-fs2: farstream-component-state-changed: component: 2 state: CONNECTING (16:39:49) sipe: sipe_schedule_remove: action name=<9826gF660aE774iB5F4m4DD3tC057bC674x0E3Ex> [16:39:49:670] [1182:1182] [INFO][com.freerdp.server.shadow.x11] - X11 Extensions: XFixes: 1 Xinerama: 1 XDamage: 0 XShm: 0 [16:39:49:675] [1182:1182] [INFO][com.freerdp.core.listener] - Listening on 0.0.0.0:3389 ** ERROR:sipe-appshare.c:682:candidate_pairs_established_cb: assertion failed (error == NULL): No such file or directory (g-io-error-quark, 1) Aborted

This is with upstream freerdp though

[joakim-tjernlund]

and lanchpad too.

The freerdp that works is Gentoo's older snapshot: freerdp-2.0.0_pre20160722 from mid July.

[xhaakon]

@joakim-tjernlund Created issue #118 for the above described assertion failure. For any independent finding please create a new ticket and leave this one for the original GTK+ SEGV. I think I know how to fix it and will look into it during the weekend when I have time.

[joakim-tjernlund]

Sure, will do :)

Which error do known how to fix, GTK+ SEGV or the Assert in candidate_pairs_established_cb() ? I am using GTK2 now so I am more in need for a fix for the Assert problem.

[xhaakon]

@joakim-tjernlund GTK+ SEGV

[xhaakon]

This should be fixed with "gtkutils: remove usage of deprecated xthickness and ythickness" in Pidgin repo.