Package: libass5
Version: 0.13.5-1
Severity: important
After upgrading libass5 to 0.13.5-1, mpv routinely segfaults when
issueing commands that display some status information. For example, it
always segfaults immediately on P (display progress bar) or PgUp/Down
(next/previous chapter), and is more-or-less likely to crash on other
commands as well.
I also get a slew of those messages whenever the bottom status/progress
bar is displayed:
[osd/libass] [0x7f54500714d0]: Warning: no style named 'Default' found
Downgrading to 0.13.4-1 fixes both issues.
Here's the relevant backtrace; let me know if there's anything else that
could be helpful.
#0 0x00007f292e24b496 in strlen () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f292e24b1ce in strdup () from /lib/x86_64-linux-gnu/libc.so.6
#2 0x00007f29308df40b in reset_render_context (
render_priv=render_priv@entry=0x7f2900af2eb0, style=<optimized out>,
style@entry=0x0) at ass_render.c:853
#3 0x00007f29308dfb7a in init_render_context (event=0x7f2900def260,
render_priv=0x7f2900af2eb0) at ass_render.c:888
#4 ass_render_event (event_images=0x7f2900df1ed8, event=0x7f2900def260,
render_priv=0x7f2900af2eb0) at ass_render.c:2459
#5 ass_render_frame (priv=0x7f2900af2eb0, track=<optimized out>,
now=now@entry=0, detect_change=detect_change@entry=0x7f2909a8f624)
at ass_render.c:3015
#6 0x00005611023cb7bd in append_ass (res=res@entry=0x5611041d09e0,
img_list=0x7f2900aea0d0, changed=changed@entry=0x5611041d0a00,
ass=<optimized out>, ass=<optimized out>) at ../sub/osd_libass.c:526
#7 0x00005611023cbda2 in osd_object_get_bitmaps (
osd=osd@entry=0x5611041c5d50, obj=obj@entry=0x5611041d0990,
format=format@entry=1, out_imgs=out_imgs@entry=0x7f2909a8f7a0)
at ../sub/osd_libass.c:541
#8 0x00005611023cae63 in render_object (out_imgs=0x7f2909a8f7a0,
sub_formats=0x7f290035fd20, video_pts=0.40040000000000003, res=...,
obj=0x5611041d0990, osd=0x5611041c5d50) at ../sub/osd.c:287
#9 osd_draw (osd=0x5611041c5d50, res=..., video_pts=0.40040000000000003,
draw_flags=<optimized out>, formats=formats@entry=0x7f290035fd20,
cb=cb@entry=0x5611023ecb80 <gen_osd_cb>,
cb_ctx=cb_ctx@entry=0x7f290035fcc0) at ../sub/osd.c:329
#10 0x00005611023ed7f1 in mpgl_osd_generate (ctx=0x7f290035fcc0, res=...,
pts=<optimized out>, stereo_mode=0, draw_flags=<optimized out>)
at ../video/out/opengl/osd.c:337
#11 0x00005611023f50f8 in pass_draw_osd (p=p@entry=0x7f2900339ca0,
draw_flags=<optimized out>, pts=<optimized out>, rect=..., vp_w=624,
vp_h=-362, fbo=fbo@entry=0, cms=cms@entry=true)
at ../video/out/opengl/video.c:2265
#12 0x00005611023fb37f in gl_video_render_frame (p=0x7f2900339ca0,
frame=frame@entry=0x7f2900aefc60, fbo=0)
at ../video/out/opengl/video.c:2774
#13 0x0000561102402f15 in draw_frame (vo=<optimized out>, frame=0x7f2900aefc60)
at ../video/out/vo_opengl.c:133
#14 0x000056110240051f in render_frame (vo=0x5611041f47e0)
at ../video/out/vo.c:814
#15 vo_thread (ptr=0x5611041f47e0) at ../video/out/vo.c:914
#16 0x00007f2933178464 in start_thread ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#17 0x00007f292e2b39df in clone () from /lib/x86_64-linux-gnu/libc.so.6
-- System Information:
Debian Release: stretch/sid
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.8.0-2-amd64 (SMP w/3 CPU cores)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)
Versions of packages libass5 depends on:
ii libc6 2.24-8
ii libfontconfig1 2.11.0-6.7
ii libfreetype6 2.6.3-3+b1
ii libfribidi0 0.19.7-1
ii libharfbuzz0b 1.2.7-1+b1
libass5 recommends no packages.
libass5 suggests no packages.
-- no debconf information
