Bug 491441
| Summary: | gdb coredumped while trying to read coredump file | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Zdenek Kabelac <zkabelac> |
| Component: | gdb | Assignee: | Jan Kratochvil <jan.kratochvil> |
| Status: | CLOSED RAWHIDE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | rawhide | CC: | dvlasenk, jan.kratochvil, mnowak |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | gdb-6.8.50.20090302-10.fc11 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2009-03-21 07:17:26 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Already fixed in Rawhide, just the Rawhide-freeze blocks its distribution: http://koji.fedoraproject.org/koji/buildinfo?buildID=94187 * Sun Mar 15 2009 Jan Kratochvil <jan.kratochvil> - 6.8.50.20090302-10 - Archer update to the snapshot: 935f217d3367a642374bc56c6b146d376fc3edab - Archer backport: 281278326412f9d6a3fabb8adc1d419fd7ddc7d7 - Fix [expr] crash reading invalid DWARF C++ symbol "" (BZ 490319). *** Bug 492390 has been marked as a duplicate of this bug. *** |
Description of problem: I've tried to look into a coredump created by firefox - and got coredump by gdb: I'm attaching full backtrace - but its hard to say what is the fault - as it looks like gdb is doing some interal fault catching ?? Anyway - fomr cp-support.c line 83 - it looks like function cp_already_canonical() could be potentially called with NULL string, thus it segfaults here. But that's just first sight idea... Potential fix could be to check for NULL in cp_canonicalize_string() and avoid calling this function and return NULL. I'll keep binary for firefox & coredump only for a few days - if there will be quick bugfix for retesting... #0 cp_already_canonical (string=<value optimized out>) at ../../gdb/cp-support.c:83 #1 cp_canonicalize_string (string=<value optimized out>) at ../../gdb/cp-support.c:115 #2 0x0000000000546d2d in dwarf2_canonicalize_name (name=0x0, cu=0x7ffff0a65bc0, obstack=0x7ffff0a65c98) at ../../gdb/dwarf2read.c:8984 #3 0x000000000054701e in read_partial_die (part_die=0x7505880, abbrev=0x767f020, abbrev_len=<value optimized out>, abfd=<value optimized out>, info_ptr=0x7fb9d8b804aa "\5O\4\374h.", cu=0x7ffff0a65bc0) at ../../gdb/dwarf2read.c:6668 #4 0x00000000005473be in load_partial_dies (abfd=<value optimized out>, info_ptr=0x7fb9d8b804a5 "\30\360]\35", building_psymtab=<value optimized out>, cu=0x7ffff0a65bc0) at ../../gdb/dwarf2read.c:6474 #5 0x000000000054abe8 in dwarf2_build_psymtabs_hard (objfile=0x2aa3f00, mainline=<value optimized out>) at ../../gdb/dwarf2read.c:1796 #6 0x00000000004b0d57 in read_psyms (objfile=0x2aa3f00) at ../../gdb/elfread.c:741 #7 0x00000000004e6155 in require_partial_symbols (objfile=0x0) at ../../gdb/symtab.c:1193 #8 0x00000000004e7cc7 in find_pc_sect_psymtab (pc=139762921316829, section=0x0) at ../../gdb/symtab.c:881 #9 0x00000000004e802a in find_pc_sect_symtab (pc=139762921316829, section=0x0) at ../../gdb/symtab.c:2132 #10 0x00000000004e6030 in blockvector_for_pc_sect (pc=139762921316829, section=0x7ffff0a65bc0, pblock=0x7ffff0a65ea8, symtab=0x7fb9d5edd020) at ../../gdb/block.c:115 #11 0x00000000004e6060 in block_for_pc_sect (pc=0, section=0x7ffff0a65bc0) at ../../gdb/block.c:191 #12 0x000000000059d7ad in inline_frame_sniffer (self=<value optimized out>, this_frame=0x6c46e98, this_cache=<value optimized out>) at ../../gdb/inline-frame.c:182 #13 0x000000000059be07 in frame_unwind_find_by_frame (this_frame=0x6c46e98, this_cache=0x6c46ea0) at ../../gdb/frame-unwind.c:102 #14 0x0000000000598ac1 in get_frame_type (frame=0x6c46e98) at ../../gdb/frame.c:1851 #15 0x0000000000598d48 in get_frame_address_in_block (this_frame=0x6c46e98) at ../../gdb/frame.c:1724 #16 0x000000000050b2c6 in backtrace_command_1 (from_tty=<value optimized out>, show_locals=<value optimized out>, count_exp=<value optimized out>) at ../../gdb/stack.c:1278 #17 backtrace_command_stub (from_tty=<value optimized out>, show_locals=<value optimized out>, count_exp=<value optimized out>) at ../../gdb/stack.c:1330 #18 0x000000000050e544 in catch_errors (func=<value optimized out>, func_args=<value optimized out>, errstring=<value optimized out>, mask=<value optimized out>) at ../../gdb/exceptions.c:516 #19 0x0000000000509e43 in backtrace_command (arg=<value optimized out>, from_tty=<value optimized out>) at ../../gdb/stack.c:1388 #20 0x000000000044c790 in execute_command (p=0x1a5e102 "", from_tty=1) at ../../gdb/top.c:450 #21 0x00000000005148d5 in command_handler (command=0x1a5e100 "bt") at ../../gdb/event-top.c:519 #22 0x00000000005155d2 in command_line_handler (rl=<value optimized out>) at ../../gdb/event-top.c:744 #23 0x00007fb9e862fe2c in rl_callback_read_char () from /lib64/libreadline.so.5 #24 0x0000000000514a19 in rl_callback_read_char_wrapper (client_data=0x0) at ../../gdb/event-top.c:179 #25 0x0000000000513338 in process_event () at ../../gdb/event-loop.c:394 #26 0x000000000051456a in gdb_do_one_event (data=<value optimized out>) at ../../gdb/event-loop.c:459 #27 0x000000000050e544 in catch_errors (func=<value optimized out>, func_args=<value optimized out>, errstring=<value optimized out>, mask=<value optimized out>) at ../../gdb/exceptions.c:516 #28 0x000000000049e028 in tui_command_loop (data=<value optimized out>) at ../../gdb/tui/tui-interp.c:156 #29 0x0000000000444889 in captured_command_loop (data=0x0) at ../../gdb/main.c:183 #30 0x000000000050e544 in catch_errors (func=<value optimized out>, func_args=<value optimized out>, errstring=<value optimized out>, mask=<value optimized out>) at ../../gdb/exceptions.c:516 #31 0x0000000000445206 in captured_main (data=<value optimized out>) at ../../gdb/main.c:989 #32 0x000000000050e544 in catch_errors (func=<value optimized out>, func_args=<value optimized out>, errstring=<value optimized out>, mask=<value optimized out>) at ../../gdb/exceptions.c:516 #33 0x0000000000444874 in gdb_main (args=0x7ffff0a65bc0) at ../../gdb/main.c:999 #34 0x0000000000444849 in main (argc=<value optimized out>, argv=0x7ffff0a65bc0) at ../../gdb/gdb.c:47 (gdb) #0 cp_already_canonical (string=<value optimized out>) at ../../gdb/cp-support.c:83 #1 cp_canonicalize_string (string=<value optimized out>) at ../../gdb/cp-support.c:115 #2 0x0000000000546d2d in dwarf2_canonicalize_name (name=0x0, cu=0x7ffff0a65bc0, obstack=0x7ffff0a65c98) at ../../gdb/dwarf2read.c:8984 #3 0x000000000054701e in read_partial_die (part_die=0x7505880, abbrev=0x767f020, abbrev_len=<value optimized out>, abfd=<value optimized out>, info_ptr=0x7fb9d8b804aa "\5O\4\374h.", cu=0x7ffff0a65bc0) at ../../gdb/dwarf2read.c:6668 #4 0x00000000005473be in load_partial_dies (abfd=<value optimized out>, info_ptr=0x7fb9d8b804a5 "\30\360]\35", building_psymtab=<value optimized out>, cu=0x7ffff0a65bc0) at ../../gdb/dwarf2read.c:6474 #5 0x000000000054abe8 in dwarf2_build_psymtabs_hard (objfile=0x2aa3f00, mainline=<value optimized out>) at ../../gdb/dwarf2read.c:1796 #6 0x00000000004b0d57 in read_psyms (objfile=0x2aa3f00) at ../../gdb/elfread.c:741 #7 0x00000000004e6155 in require_partial_symbols (objfile=0x0) at ../../gdb/symtab.c:1193 #8 0x00000000004e7cc7 in find_pc_sect_psymtab (pc=139762921316829, section=0x0) at ../../gdb/symtab.c:881 #9 0x00000000004e802a in find_pc_sect_symtab (pc=139762921316829, section=0x0) at ../../gdb/symtab.c:2132 #10 0x00000000004e6030 in blockvector_for_pc_sect (pc=139762921316829, section=0x7ffff0a65bc0, pblock=0x7ffff0a65ea8, symtab=0x7fb9d5edd020) at ../../gdb/block.c:115 #11 0x00000000004e6060 in block_for_pc_sect (pc=0, section=0x7ffff0a65bc0) at ../../gdb/block.c:191 #12 0x000000000059d7ad in inline_frame_sniffer (self=<value optimized out>, this_frame=0x6c46e98, this_cache=<value optimized out>) at ../../gdb/inline-frame.c:182 #13 0x000000000059be07 in frame_unwind_find_by_frame (this_frame=0x6c46e98, this_cache=0x6c46ea0) at ../../gdb/frame-unwind.c:102 #14 0x0000000000598ac1 in get_frame_type (frame=0x6c46e98) at ../../gdb/frame.c:1851 #15 0x0000000000598d48 in get_frame_address_in_block (this_frame=0x6c46e98) at ../../gdb/frame.c:1724 #16 0x000000000050b2c6 in backtrace_command_1 (from_tty=<value optimized out>, show_locals=<value optimized out>, count_exp=<value optimized out>) at ../../gdb/stack.c:1278 #17 backtrace_command_stub (from_tty=<value optimized out>, show_locals=<value optimized out>, count_exp=<value optimized out>) at ../../gdb/stack.c:1330 #18 0x000000000050e544 in catch_errors (func=<value optimized out>, func_args=<value optimized out>, errstring=<value optimized out>, mask=<value optimized out>) at ../../gdb/exceptions.c:516 #19 0x0000000000509e43 in backtrace_command (arg=<value optimized out>, from_tty=<value optimized out>) at ../../gdb/stack.c:1388 #20 0x000000000044c790 in execute_command (p=0x1a5e102 "", from_tty=1) at ../../gdb/top.c:450 #21 0x00000000005148d5 in command_handler (command=0x1a5e100 "bt") at ../../gdb/event-top.c:519 #22 0x00000000005155d2 in command_line_handler (rl=<value optimized out>) at ../../gdb/event-top.c:744 #23 0x00007fb9e862fe2c in rl_callback_read_char () from /lib64/libreadline.so.5 #24 0x0000000000514a19 in rl_callback_read_char_wrapper (client_data=0x0) at ../../gdb/event-top.c:179 #25 0x0000000000513338 in process_event () at ../../gdb/event-loop.c:394 #26 0x000000000051456a in gdb_do_one_event (data=<value optimized out>) at ../../gdb/event-loop.c:459 #27 0x000000000050e544 in catch_errors (func=<value optimized out>, func_args=<value optimized out>, errstring=<value optimized out>, mask=<value optimized out>) at ../../gdb/exceptions.c:516 #28 0x000000000049e028 in tui_command_loop (data=<value optimized out>) at ../../gdb/tui/tui-interp.c:156 #29 0x0000000000444889 in captured_command_loop (data=0x0) at ../../gdb/main.c:183 #30 0x000000000050e544 in catch_errors (func=<value optimized out>, func_args=<value optimized out>, errstring=<value optimized out>, mask=<value optimized out>) at ../../gdb/exceptions.c:516 #31 0x0000000000445206 in captured_main (data=<value optimized out>) at ../../gdb/main.c:989 #32 0x000000000050e544 in catch_errors (func=<value optimized out>, func_args=<value optimized out>, errstring=<value optimized out>, mask=<value optimized out>) at ../../gdb/exceptions.c:516 #33 0x0000000000444874 in gdb_main (args=0x7ffff0a65bc0) at ../../gdb/main.c:999 #34 0x0000000000444849 in main (argc=<value optimized out>, argv=0x7ffff0a65bc0) at ../../gdb/gdb.c:47 Version-Release number of selected component (if applicable): gdb-6.8.50.20090302-8.fc11.x86_64 How reproducible: maybe my coredump from firefox is special Steps to Reproduce: 1. no idea 2. 3. Actual results: Expected results: Additional info: