https://bugzilla.redhat.com/show_bug.cgi?id=2119963 --- Comment #4 from Petr Pisar <ppisar@xxxxxxxxxx> --- (gdb) bt #0 0x00007ffff7451203 in XCopyGC () at /lib64/libX11.so.6 #1 0x00007ffff736c6e2 in apc_gp_push (self=93825005492864, destructor=<optimized out>, user_data=0x0, user_data_size=<optimized out>) at unix/graphics.c:2311 #2 0x00007ffff736c8e6 in prima_prepare_drawable_for_painting (self=93825005492864, inside_on_paint=0) at unix/graphics.c:165 #3 0x00007ffff737f800 in apc_menu_item_begin_paint (self=<optimized out>, event=<optimized out>) at unix/menu.c:2439 #4 0x00007ffff72a4155 in AbstractMenu_handle_event (self=93825005133536, event=0x7fffffffd830) at class/AbstractMenu.c:1468 #5 0x00007ffff72b1d23 in Component_message (self=93825005133536, event=0x7fffffffd830) at class/Component.c:307 #6 0x00007ffff73799dd in menuitem_draw_custom (m=<optimized out>, draw=0x7fffffffd7f0, param=0x0, rgn=0x55555618e050, ix=0x5555561f1490, x=0, y=100, str_size=<synthetic pointer>, str_ptr=<synthetic pointer>, vertical=1, descent=4, clr=0, rgb=0, index=<optimized out>, selected=0, w=<optimized out>, win=50331706, self=93825005133536) at unix/menu.c:1230 #7 handle_menu_expose (ev=<optimized out>, win=50331706, self=93825005133536) at unix/menu.c:1355 #8 0x00007ffff735a0a6 in prima_handle_event (ev=0x7fffffffdca0, next_event=0x0) at unix/event.c:1169 #9 0x00007ffff735baeb in send_queued_x_events (careOfApplication=careOfApplication@entry=1) at unix/event.c:2063 #10 0x00007ffff735ca5e in handle_queued_events (careOfApplication=careOfApplication@entry=1) at unix/event.c:2225 #11 0x00007ffff735ce94 in prima_one_loop_round (wait=1, careOfApplication=1) at unix/event.c:2246 #12 0x00007ffff734d5ef in apc_application_go (self=<optimized out>) at unix/app.c:1052 #13 apc_application_go (self=<optimized out>) at unix/app.c:1045 #14 0x00007ffff728e151 in template_xs_Bool_Handle (cv=<optimized out>, subName=0x7ffff73a3e5e "Prima::Application::go", func=0x7ffff734d590 <apc_application_go>) at include/generic/thunks.tinc:3559 #15 0x00007ffff7d1eed0 in Perl_pp_entersub () at /lib64/libperl.so.5.36 #16 0x00007ffff7d10850 in Perl_runops_standard () at /lib64/libperl.so.5.36 #17 0x00007ffff7c80fa1 in perl_run () at /lib64/libperl.so.5.36 #18 0x000055555555534a in main () (gdb) frame 1 #1 0x00007ffff736c6e2 in apc_gp_push (self=93825005492864, destructor=<optimized out>, user_data=0x0, user_data_size=<optimized out>) at unix/graphics.c:2311 2311 XCopyGC( DISP, state->paint.gc, (1 << (GCLastBit + 1)) - 1, XX->gc); (gdb) p state->paint $1 = {fore = {primary = 0, secondary = 0, color = 0, balance = 0 '\000'}, back = {primary = 0, secondary = 0, color = 0, balance = 0 '\000'}, gc = 0x0, gcl = 0x0, gc_pool = 0x7ffff73ff0b8 <guts+728>, region = 0x0, tile = 0, stipple = 0, kill_tile = 0, kill_stipple = 0} This looks like a NULL pointer (state->paint.gc) dereference in XCopyGC(). But the apc_gp_push() part is fishy: state->paint.gc = XX-> gc; state->paint.gcl = XX-> gcl; XX->gcl = NULL; XX->gc = NULL; state->paint.gc_pool = prima_get_gc(XX); XCopyGC( DISP, state->paint.gc, (1 << (GCLastBit + 1)) - 1, XX->gc); What's the point of XCopyGC( DISP, NULL, ALL_GC_COMPONENTS, NULL)? -- You are receiving this mail because: You are on the CC list for the bug. https://bugzilla.redhat.com/show_bug.cgi?id=2119963 _______________________________________________ perl-devel mailing list -- perl-devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to perl-devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/perl-devel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue