http://bugzilla.opensuse.org/show_bug.cgi?id=1191718 Bug ID: 1191718 Summary: gdb crashes (SIGABRT) debugging firefox when issuing 'info threads' command Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Development Assignee: screening-team-bugs@suse.de Reporter: pujos.michael@gmail.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- While attempting to run firefox under gdb to check if it could give a hint about issue #1191659, it revealed that gdb is crashing doing this: start firefox under gdb (you can also attach to a running firefox pid): firefox -d gdb It will take a while initially, as all debug info will be downloaded. Once firefox is started and you have control in gdb, issue this command info threads gdb will start printing some thread info then core dump on SIGABRT. examining the core dump in gdb with 'coredumpctl gdb', then the 'bt' command gives stack trace below. Crash happens at dwarf2/read.c:23098, in something that seems to be related with loading Rust binaries. This crash does not happen on a fresh gdb cloned from git, but it is a much newer version compiled with default settings and no debuggerd support. openSUSE is the older v10.1 with zillions patches that almost look like a fork when you look at the very complex spec file. //////// #0 __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44 44 return INTERNAL_SYSCALL_ERROR_P (ret) ? INTERNAL_SYSCALL_ERRNO (ret) : 0; [Current thread is 1 (Thread 0x7f60d7e63500 (LWP 26804))] (gdb) bt #0 __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44 #1 0x00007f60d8bfc8e3 in __pthread_kill_internal (signo=6, threadid=<optimized out>) at pthread_kill.c:78 #2 0x00007f60d8baf6f6 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26 #3 0x00007f60d8b997b3 in __GI_abort () at abort.c:79 #4 0x000056168a8fc57b in handle_sigsegv (sig=<optimized out>) at ../../gdb/event-top.c:891 #5 <signal handler called> #6 follow_die_offset (sect_off=sect_off@entry=(unknown: 0x53ad3194), offset_in_dwz=<optimized out>, ref_cu=0x7ffc28541a00) at ../../gdb/dwarf2/read.c:23098 #7 0x000056168aa64032 in follow_die_ref (src_die=0x5616e0127390, attr=0x5616e01273c8, ref_cu=<optimized out>) at ../../gdb/dwarf2/read.c:23117 #8 0x000056168aa4b20b in rust_containing_type (cu=0x5616c7f62b50, die=0x5616e0127390) at ../../gdb/dwarf2/read.c:14174 #9 read_variable (cu=0x5616c7f62b50, die=0x5616e0127390) at ../../gdb/dwarf2/read.c:14192 #10 process_die (die=0x5616e0127390, cu=0x5616c7f62b50) at ../../gdb/dwarf2/read.c:10278 #11 0x000056168aa4a04a in read_file_scope (cu=0x5616c7f62b50, die=0x5616b8353ec0) at ../../gdb/dwarf2/read.c:11184 #12 process_die (die=0x5616b8353ec0, cu=0x5616c7f62b50) at ../../gdb/dwarf2/read.c:10191 #13 0x000056168aa773d7 in process_full_comp_unit (pretend_language=<optimized out>, cu=0x5616c7f62b50) at ../../gdb/dwarf2/read.c:9953 #14 process_queue (per_objfile=0x5616924c1ec0) at ../../gdb/dwarf2/read.c:9173 #15 dw2_do_instantiate_symtab(dwarf2_per_cu_data*, dwarf2_per_objfile*, bool) [clone .part.0] [clone .lto_priv.0] (per_cu=<optimized out>, per_objfile=0x5616924c1ec0, skip_partial=<optimized out>) at ../../gdb/dwarf2/read.c:2435 #16 0x000056168aa4088a in dw2_do_instantiate_symtab (skip_partial=false, per_objfile=0x5616924c1ec0, per_cu=<optimized out>) at ../../gdb/dwarf2/read.h:601 #17 dwarf2_psymtab::expand_psymtab (this=0x5616a53901e0, objfile=0x5616926477e0) at ../../gdb/dwarf2/read.c:9202 #18 0x000056168aa48d22 in dwarf2_psymtab::read_symtab (this=0x5616a53901e0, objfile=0x5616926477e0) at ../../gdb/dwarf2/read.c:9050 #19 0x000056168aba5911 in psymtab_to_symtab (objfile=0x5616926477e0, pst=0x5616a53901e0) at ../../gdb/psymtab.c:766 #20 0x000056168ab9d8ee in psym_find_pc_sect_compunit_symtab (objfile=0x5616926477e0, msymbol=..., pc=<optimized out>, section=<optimized out>, warn_if_readin=1) at ../../gdb/psymtab.c:394 #21 0x000056168ac8bfa9 in find_pc_sect_compunit_symtab (pc=140737253796073, section=0x0) at ../../gdb/symtab.c:3001 #22 0x000056168a981efb in find_pc_compunit_symtab (pc=140737253796073) at ../../gdb/symtab.c:3019 #23 call_site_for_pc (gdbarch=0x56168c969950, pc=<optimized out>) at ../../gdb/block.c:229 #24 0x000056168aa24c18 in call_site_find_chain_1 (callee_pc=140737350397632, caller_pc=140737253796074, gdbarch=0x56168c969950) at ../../gdb/dwarf2/loc.c:1193 #25 call_site_find_chain (callee_pc=140737350397661, caller_pc=140737253796074, gdbarch=0x56168c969950) at ../../gdb/dwarf2/loc.c:1296 #26 dwarf2_tailcall_sniffer_first (entry_cfa_sp_offsetp=0x0, tailcall_cachep=0x5616e9f77690, this_frame=0x5616e9f77590) at ../../gdb/dwarf2/frame-tailcall.c:390 #27 dwarf2_frame_cache (this_frame=0x5616e9f77590, this_cache=<optimized out>) at ../../gdb/dwarf2/frame.c:1198 #28 0x000056168aa25eb3 in dwarf2_frame_this_id (this_frame=0x5616e9f77590, this_cache=<optimized out>, this_id=0x5616e9f775f0) at ../../gdb/dwarf2/frame.c:1225 #29 0x000056168aa8d264 in compute_frame_id (fi=0x5616e9f77590) at ../../gdb/frame.c:590 #30 0x000056168aa8d405 in get_frame_id (fi=0x5616e9f77590) at ../../gdb/frame.c:638 #31 0x000056168ac6c853 in scoped_restore_selected_frame::scoped_restore_selected_frame (this=0x7ffc285422c0) at ../../gdb/frame.c:320 #32 print_frame_args (fp_opts=..., func=0x0, frame=0x5616e9f77590, num=-1, stream=0x56168c2f1ea0) at ../../gdb/stack.c:750 #33 0x000056168ac726b4 in print_frame (sal=..., sal=..., print_args=<optimized out>, print_what=LOCATION, print_level=<optimized out>, frame=0x5616e9f77590, fp_opts=...) at ../../gdb/top.c:102 #34 print_frame_info (fp_opts=..., frame=0x5616e9f77590, print_level=<optimized out>, print_what=LOCATION, print_args=<optimized out>, set_current_sal=0) at ../../gdb/stack.c:1119 #35 0x000056168ac64db5 in print_stack_frame (frame=0x5616e9f77590, print_level=0, print_what=LOCATION, set_current_sal=0) at ../../gdb/stack.c:366 #36 0x000056168acc8f4b in print_thread_info_1 (uiout=0x56168c2be950, requested_threads=0x0, global_ids=0, pid=-1, show_global_ids=0) at ../../gdb/thread.c:1160 #37 0x000056168acc994b in info_threads_command (arg=<optimized out>, from_tty=<optimized out>) at ../../gdb/top.c:124 #38 0x000056168a9d08a2 in cmd_func (cmd=<optimized out>, args=<optimized out>, from_tty=<optimized out>) at ../../gdb/cli/cli-decode.c:2181 #39 0x000056168acc4afe in execute_command (p=<optimized out>, from_tty=1) at ../../gdb/top.c:668 #40 0x000056168aa810ed in command_handler (command=0x56168bfb0f20 "info threads") at ../../gdb/event-top.c:591 #41 0x000056168aa8118d in command_line_handler (rl=...) at ../../gdb/event-top.c:776 #42 0x000056168aa78069 in gdb_rl_callback_handler (rl=0x5616a52fcc30 "info threads") at ../../gdb/event-top.c:220 #43 0x00007f60d96150be in rl_callback_read_char () at ../callback.c:281 #44 0x000056168aa80d13 in gdb_rl_callback_read_char_wrapper_noexcept () at ../../gdb/event-top.c:178 #45 0x000056168aa80ef0 in gdb_rl_callback_read_char_wrapper (client_data=<optimized out>) at ../../gdb/event-top.c:194 #46 0x000056168aa81010 in stdin_event_handler (error=<optimized out>, client_data=0x56168bfb0d40) at ../../gdb/event-top.c:519 #47 0x000056168ae69c16 in gdb_wait_for_event (block=1) at ../gdbsupport/../../gdbsupport/event-loop.cc:673 #48 gdb_wait_for_event (block=block@entry=1) at ../gdbsupport/../../gdbsupport/event-loop.cc:561 #49 0x000056168ae6a054 in gdb_do_one_event () at ../gdbsupport/../../gdbsupport/event-loop.cc:215 #50 gdb_do_one_event () at ../gdbsupport/../../gdbsupport/event-loop.cc:163 #51 0x000056168ab2fd65 in start_event_loop () at ../../gdb/main.c:356 #52 captured_command_loop () at ../../gdb/main.c:416 #53 0x000056168aec4185 in captured_main(void*) [clone .constprop.0] (data=data@entry=0x7ffc28542af0) at ../../gdb/main.c:1304 #54 0x000056168a91256b in gdb_main (args=0x7ffc28542af0) at ../../gdb/main.c:1315 -- You are receiving this mail because: You are on the CC list for the bug.