[bisected] Crash in pixman renderer when closing kdialog windows
It seems to happen on not every close, but a high percentage of them
It seems to be caused by c08a6ff8bd6e1839a8fd7fe87602df9a1a8b62e2, as it does not happen with 71079ffd1a4e71a29b297e5c403a8c48eccc9f83
Below is the stack trace of Weston when it crashes
Core was generated by `/opt/bin/weston --backend=drm-backend.so --use-pixman --s
ocket=loginmanagerdisp'.
Program terminated with signal SIGSEGV, Segmentation fault.
warning: Section `.reg-xstate/4670' in core file too small.
#0 0x00007f54c555bd05 in wl_shm_buffer_get_format ()
--Type <RET> for more, q to quit, c to continue without paging--bt
from /opt/lib/x86_64-linux-gnu/libwayland-server.so.0
(gdb) bt
#0 0x00007f54c555bd05 in wl_shm_buffer_get_format ()
from /opt/lib/x86_64-linux-gnu/libwayland-server.so.0
#1 0x00007f54c55aeb9a in pixman_renderer_attach_internal (es=0x55dcd034ec70,
buffer=0x55dcd035e790) at ../libweston/pixman-renderer.c:781
#2 0x00007f54c55a0fd5 in paint_node_update_late (pnode=0x55dcd0348220)
at ../libweston/compositor.c:314
#3 weston_output_repaint (now=0x7ffc9f3e9820, output=0x55dcd0367030)
at ../libweston/compositor.c:3674
#4 output_repaint_timer_handler (data=0x55dcd02b8d50)
at ../libweston/compositor.c:3876
#5 0x00007f54c555c984 in wl_event_loop_dispatch ()
from /opt/lib/x86_64-linux-gnu/libwayland-server.so.0
#6 0x00007f54c555b3a2 in wl_display_run ()
from /opt/lib/x86_64-linux-gnu/libwayland-server.so.0
#7 0x00007f54c57ce729 in wet_main (argc=<optimized out>, argv=0x7ffc9f3ea418,
test_data=0x0) at ../frontend/main.c:4473
#8 0x00007f54c560624a in __libc_start_call_main (
main=main@entry=0x55dcc3e6e050 <main>, argc=argc@entry=6,
argv=argv@entry=0x7ffc9f3ea418)
at ../sysdeps/nptl/libc_start_call_main.h:58
#9 0x00007f54c5606305 in __libc_start_main_impl (main=0x55dcc3e6e050 <main>,
argc=6, argv=0x7ffc9f3ea418, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffc9f3ea408)
--Type <RET> for more, q to quit, c to continue without paging--
at ../csu/libc-start.c:360
#10 0x000055dcc3e6e081 in _start ()
(gdb)
(gdb)
(gdb)
(gdb) bt full
#0 0x00007f54c555bd05 in wl_shm_buffer_get_format ()
from /opt/lib/x86_64-linux-gnu/libwayland-server.so.0
No symbol table info available.
#1 0x00007f54c55aeb9a in pixman_renderer_attach_internal (es=0x55dcd034ec70,
buffer=0x55dcd035e790) at ../libweston/pixman-renderer.c:781
ps = 0x55dcd035c0c0
shm_buffer = 0x0
pixel_info = <optimized out>
#2 0x00007f54c55a0fd5 in paint_node_update_late (pnode=0x55dcd0348220)
at ../libweston/compositor.c:314
surf = 0x55dcd034ec70
vis_dirty = <optimized out>
plane_dirty = false
content_dirty = true
buffer_dirty = true
surf = <optimized out>
vis_dirty = <optimized out>
plane_dirty = <optimized out>
content_dirty = <optimized out>
buffer_dirty = <optimized out>
__PRETTY_FUNCTION__ = "paint_node_update_late"
#3 weston_output_repaint (now=0x7ffc9f3e9820, output=0x55dcd0367030)
at ../libweston/compositor.c:3674
--Type <RET> for more, q to quit, c to continue without paging--c
pnode = 0x55dcd0348220
animation = <optimized out>
cnext = <optimized out>
r = <optimized out>
frame_time_msec = <optimized out>
highest_requested = <optimized out>
ec = 0x55dcd02b8d50
next = <optimized out>
cb = <optimized out>
frame_callback_list = {prev = 0x0, next = 0x32000000500}
ec = <optimized out>
pnode = <optimized out>
animation = <optimized out>
next = <optimized out>
cb = <optimized out>
cnext = <optimized out>
frame_callback_list = <optimized out>
r = <optimized out>
frame_time_msec = <optimized out>
highest_requested = <optimized out>
__PRETTY_FUNCTION__ = "weston_output_repaint"
tmp___ = <optimized out>
tmp___ = <optimized out>
#4 output_repaint_timer_handler (data=0x55dcd02b8d50)
at ../libweston/compositor.c:3876
compositor = <optimized out>
backend = 0x55dcd02c35c0
output = 0x55dcd0367030
now = {tv_sec = 868, tv_nsec = 770804474}
ret = <optimized out>
#5 0x00007f54c555c984 in wl_event_loop_dispatch ()
from /opt/lib/x86_64-linux-gnu/libwayland-server.so.0
No symbol table info available.
#6 0x00007f54c555b3a2 in wl_display_run ()
from /opt/lib/x86_64-linux-gnu/libwayland-server.so.0
No symbol table info available.
#7 0x00007f54c57ce729 in wet_main (argc=<optimized out>, argv=0x7ffc9f3ea418, test_data=0x0) at ../frontend/main.c:4473
ret = 1
cmdline = <optimized out>
display = 0x55dcd02b6cb0
signals = {0x55dcd02b6ea0, 0x55dcd02b6ef0, 0x55dcd02b6f40}
loop = <optimized out>
i = <optimized out>
fd = <optimized out>
backends = 0x55dcd02ad5b0 "drm-backend.so"
renderer = 0x0
shell = 0x55dcd02c98d0 "desktop"
xwayland = false
modules = 0x55dcd0343870 ""
option_modules = 0x0
log = 0x55dcd02aeec0 "/var/log/waylandloginmanager/loginmanagerdisplays/
loginmanagerdisplay_seat0.log"
log_scopes = 0x0
flight_rec_scopes = 0x7f54c57d47d4 "log,drm-backend"
server_socket = <optimized out>
require_outputs = 0x0
idle_time = 300
help = 0
socket_name = 0x55dcd02ad5d0 "loginmanagerdisplay_seat0"
version = 0
noconfig = 0
debug_protocol = 0
numlock_on = false
config_file = 0x55dcd02ae360 "/etc/loginmanagerdisplay//loginmanagerdisp
lay.ini"
config = <optimized out>
section = <optimized out>
primary_client = <optimized out>
primary_client_destroyed = {link = {prev = 0x0, next = 0x1},
notify = 0x0}
seat = <optimized out>
wet = {compositor = 0x55dcd02b8d50, config = 0x55dcd02b6f90,
parsed_options = 0x0, drm_use_current_mode = false,
init_failed = false, backend_list = {prev = 0x55dcd02ba4e8,
next = 0x55dcd02ba4e8}, layoutput_list = {prev = 0x55dcd0344968,
next = 0x55dcd0344968}, child_process_list = {
prev = 0x55dcd0356ac0, next = 0x55dcd0356ac0},
autolaunch_pid = -1, autolaunch_watch = false,
use_color_manager = false, drm_backend_loaded = true,
screenshot_auth = {link = {prev = 0x0, next = 0x0}, notify = 0x0},
require_outputs = REQUIRE_OUTPUTS_ANY}
log_ctx = 0x55dcd02b4c40
logger = 0x55dcd02b4f00
flight_rec = 0x55dcd02b4f40
process = <optimized out>
process_tmp = <optimized out>
wet_xwl = 0x0
mask = {__val = {512, 0, 0, 0, 0, 0, 0, 0, 0, 16384, 4294959103,
4294959103, 0, 0, 0, 0}}
action = {__sigaction_handler = {
sa_handler = 0x7f54c57c82c5 <sigint_helper>,
sa_sigaction = 0x7f54c57c82c5 <sigint_helper>}, sa_mask = {
__val = {0, 15305483335754892584, 11729625230926991402,
2621657935230312254, 0 <repeats 12 times>}}, sa_flags = 0,
sa_restorer = 0x6172615047007261}
wait_for_debugger = false
protologger = 0x55dcd02b99e0
core_options = {{type = WESTON_OPTION_STRING,
name = 0x7f54c57d47dc "backend", short_name = 66 'B',
data = 0x7ffc9f3e9b60}, {type = WESTON_OPTION_STRING,
name = 0x7f54c57d35f5 "backends", short_name = 0 '\000',
data = 0x7ffc9f3e9b60}, {type = WESTON_OPTION_STRING,
name = 0x7f54c57d35fe "renderer", short_name = 0 '\000',
data = 0x7ffc9f3e9b68}, {type = WESTON_OPTION_STRING,
name = 0x7f54c57d3607 "shell", short_name = 0 '\000',
data = 0x7ffc9f3e9b70}, {type = WESTON_OPTION_STRING,
name = 0x7f54c57d4c78 "socket", short_name = 83 'S',
data = 0x7ffc9f3e9ba8}, {type = WESTON_OPTION_INTEGER,
name = 0x7f54c57d360d "idle-time", short_name = 105 'i',
data = 0x7ffc9f3e9b48}, {type = WESTON_OPTION_BOOLEAN,
name = 0x7f54c57d3617 "xwayland", short_name = 0 '\000',
data = 0x7ffc9f3e9b46}, {type = WESTON_OPTION_STRING,
name = 0x7f54c57d3620 "modules", short_name = 0 '\000',
data = 0x7ffc9f3e9b80}, {type = WESTON_OPTION_STRING,
name = 0x7f54c57d3628 "log", short_name = 0 '\000',
data = 0x7ffc9f3e9b88}, {type = WESTON_OPTION_BOOLEAN,
name = 0x7f54c57d362c "help", short_name = 104 'h',
data = 0x7ffc9f3e9b4c}, {type = WESTON_OPTION_BOOLEAN,
name = 0x7f54c57d3631 "version", short_name = 0 '\000',
data = 0x7ffc9f3e9b50}, {type = WESTON_OPTION_BOOLEAN,
name = 0x7f54c57d3639 "no-config", short_name = 0 '\000',
data = 0x7ffc9f3e9b54}, {type = WESTON_OPTION_STRING,
name = 0x7f54c57d363c "config", short_name = 99 'c',
data = 0x7ffc9f3e9bb0}, {type = WESTON_OPTION_BOOLEAN,
name = 0x7f54c57d3643 "wait-for-debugger", short_name = 0 '\000',
data = 0x7ffc9f3e9b47}, {type = WESTON_OPTION_BOOLEAN,
name = 0x7f54c57d3655 "debug", short_name = 0 '\000',
data = 0x7ffc9f3e9b58}, {type = WESTON_OPTION_STRING,
name = 0x7f54c57d365b "logger-scopes", short_name = 108 'l',
data = 0x7ffc9f3e9b90}, {type = WESTON_OPTION_STRING,
name = 0x7f54c57d3669 "flight-rec-scopes", short_name = 102 'f',
data = 0x7ffc9f3e9b98}}
#8 0x00007f54c560624a in __libc_start_call_main (
main=main@entry=0x55dcc3e6e050 <main>, argc=argc@entry=6,
argv=argv@entry=0x7ffc9f3ea418)
at ../sysdeps/nptl/libc_start_call_main.h:58
self = <optimized out>
result = <optimized out>
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140722980168728,
-7084263001601203430, 0, 140722980168784, 94406667865528,
140002067566624, 7086020563527934746, 7135441878208881434},
mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7ffc9f3ea418,
0x7ffc9f3ea418}, data = {prev = 0x0, cleanup = 0x0,
canceltype = -1623284712}}}
not_first_call = <optimized out>
#9 0x00007f54c5606305 in __libc_start_main_impl (main=0x55dcc3e6e050 <main>,
argc=6, argv=0x7ffc9f3ea418, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffc9f3ea408)
at ../csu/libc-start.c:360
No locals.
#10 0x000055dcc3e6e081 in _start ()
No symbol table info available.
(gdb)
I hope this information is helpful
Thanks