Bug 1751253
| Summary: | gdb gets segtment fault when parse the coredump of rr | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 8 | Reporter: | Han Han <hhan> | ||||||
| Component: | gdb | Assignee: | Keith Seitz <keiths> | ||||||
| gdb sub component: | system-version | QA Contact: | qe-baseos-tools-bugs | ||||||
| Status: | CLOSED DUPLICATE | Docs Contact: | |||||||
| Severity: | unspecified | ||||||||
| Priority: | unspecified | CC: | dsmith, gdb-bugs, mcermak, ohudlick, sergiodj | ||||||
| Version: | 8.1 | Keywords: | Triaged | ||||||
| Target Milestone: | rc | ||||||||
| Target Release: | 8.0 | ||||||||
| Hardware: | Unspecified | ||||||||
| OS: | Unspecified | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2019-10-09 18:51:34 UTC | Type: | Bug | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
| Embargoed: | |||||||||
| Attachments: |
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Created attachment 1614104 [details]
attachment part 1
Created attachment 1614106 [details]
attachment part 2
Confirmed that this is 1708192. Verified that gdb-8.3-6 "works" (it cannot grok the corrupt debuginfo, but it doesn't segfault). *** This bug has been marked as a duplicate of bug 1684303 *** |
Description of problem: As subject Version-Release number of selected component (if applicable): gdb-8.2-6.el8 How reproducible: 100% Steps to Reproduce: 1. Download the attachment and uncompress it 2. Change dir to the uncompressed attachment 3. Execute the gdbinit via gdb to parse the info from rr coredump file ➜ rr gdb -q (gdb) source gdbinit Missing separate debuginfo for /tmp/rr/usr/bin/rr [New LWP 279622] Core was generated by `rr record libvirtd'. Program terminated with signal SIGSEGV, Segmentation fault. [1] 31513 segmentation fault (core dumped) gdb -q Actual results: As above Expected results: No segment fault Additional info: Backtrace of gdb: (gdb) bt #0 0x0000564c6ebc4560 in parse_macro_definition (body=<optimized out>, line=<optimized out>, file=<optimized out>) at ../../gdb/dwarf2read.c:24499 #1 dwarf_decode_macro_bytes (dwarf2_per_objfile=dwarf2_per_objfile@entry=0x564c70813a30, abfd=abfd@entry=0x564c707f3360, mac_ptr=0x564c72a9f4d2 "\005", mac_ptr@entry=0x564c72a9ed85 "\004", mac_end=mac_end@entry=0x564c72b083d1 "", current_file=current_file@entry=0x564c72a65d20, lh=lh@entry=0x564c707f40d0, section=0x564c70813b20, section_is_gnu=1, section_is_dwz=0, offset_size=<optimized out>, include_hash=0x564c7214c5f0) at ../../gdb/dwarf2read.c:24359 #2 0x0000564c6ebc4650 in dwarf_decode_macro_bytes (dwarf2_per_objfile=dwarf2_per_objfile@entry=0x564c70813a30, abfd=abfd@entry=0x564c707f3360, mac_ptr=0x564c72af37e6 "\003", mac_ptr@entry=0x564c72af37da "\004", mac_end=mac_end@entry=0x564c72b083d1 "", current_file=current_file@entry=0x564c72a65d20, lh=lh@entry=0x564c707f40d0, section=0x564c70813b20, section_is_gnu=1, section_is_dwz=0, offset_size=<optimized out>, include_hash=0x564c7214c5f0) at ../../gdb/dwarf2read.c:24475 #3 0x0000564c6ebc4d6d in dwarf_decode_macros (cu=<optimized out>, offset=351290, section_is_gnu=1) at ../../gdb/dwarf2read.c:24703 #4 0x0000564c6ebd8854 in read_file_scope (cu=0x564c70788de0, die=0x564c71707720) at ../../gdb/dwarf2read.c:11509 #5 process_die (die=0x564c71707720, cu=0x564c70788de0) at ../../gdb/dwarf2read.c:10514 #6 0x0000564c6ebddbd8 in process_full_comp_unit (pretend_language=<optimized out>, per_cu=<optimized out>) at ../../gdb/dwarf2read.c:10274 #7 process_queue (dwarf2_per_objfile=<optimized out>, dwarf2_per_objfile=<optimized out>) at ../../gdb/dwarf2read.c:9499 #8 dw2_do_instantiate_symtab (per_cu=<optimized out>, skip_partial=<optimized out>) at ../../gdb/dwarf2read.c:2885 #9 0x0000564c6ebdf25f in dwarf2_read_symtab (self=0x564c718da2c0, objfile=0x564c707faf30) at ../../gdb/dwarf2read.c:9365 #10 0x0000564c6ec7c297 in psymtab_to_symtab (objfile=0x564c707faf30, pst=0x564c718da2c0) at ../../gdb/psymtab.c:792 #11 0x0000564c6ec7f345 in psym_find_pc_sect_compunit_symtab (objfile=0x564c707faf30, msymbol=..., pc=<optimized out>, section=<optimized out>, warn_if_readin=1) at ../../gdb/psymtab.c:399 #12 0x0000564c6ecdcee8 in find_pc_sect_compunit_symtab (pc=94719964062065, section=0x0) at ../../gdb/symtab.c:2973 #13 0x0000564c6ecdcf19 in find_pc_compunit_symtab (pc=<optimized out>) at ../../gdb/symtab.c:2991 #14 0x0000564c6ebf5e29 in select_frame (fi=<optimized out>) at ../../gdb/frame.c:1715 #15 0x0000564c6ebf72f3 in select_frame (fi=<optimized out>) at ../../gdb/frame.c:1702 #16 get_selected_frame (message=message@entry=0x0) at ../../gdb/frame.c:1655 #17 0x0000564c6eb82a77 in core_target_open (arg=<optimized out>, from_tty=0) at ../../gdb/corelow.c:582 #18 0x0000564c6ea6b43a in cmd_func (cmd=<optimized out>, args=<optimized out>, from_tty=<optimized out>) at ../../gdb/cli/cli-decode.c:1857 #19 0x0000564c6ed0f05a in execute_command (p=<optimized out>, p@entry=0x564c706f46b0 "core-file rr-coredump", from_tty=0) at ../../gdb/top.c:630 #20 0x0000564c6ebeaf04 in command_handler (command=0x564c706f46b0 "core-file rr-coredump") at ../../gdb/event-top.c:586 #21 0x0000564c6ed0fc8f in read_command_file (stream=stream@entry=0x564c706edff0) at ../../gdb/top.c:424 #22 0x0000564c6ea70582 in script_from_file (stream=stream@entry=0x564c706edff0, file=file@entry=0x7fff83e27e80 "gdbinit") at ../../gdb/cli/cli-script.c:1551 #23 0x0000564c6ea6818b in source_script_from_stream (file_to_open=0x7fff83e27e80 "gdbinit", file=0x7fff83e27e80 "gdbinit", stream=0x564c706edff0) at ../../gdb/cli/cli-cmds.c:568 #24 source_script_with_search (file=0x7fff83e27e80 "gdbinit", from_tty=<optimized out>, search_path=<optimized out>) at ../../gdb/cli/cli-cmds.c:604 #25 0x0000564c6ea68310 in source_command (args=<optimized out>, from_tty=1) at ../../gdb/cli/cli-cmds.c:663 #26 0x0000564c6ea6b43a in cmd_func (cmd=<optimized out>, args=<optimized out>, from_tty=<optimized out>) at ../../gdb/cli/cli-decode.c:1857 #27 0x0000564c6ed0f05a in execute_command (p=<optimized out>, p@entry=0x564c6fd84e60 "source gdbinit ", from_tty=1) at ../../gdb/top.c:630 #28 0x0000564c6ebeaf04 in command_handler (command=0x564c6fd84e60 "source gdbinit ") at ../../gdb/event-top.c:586 #29 0x0000564c6ebebe2e in command_line_handler (rl=<optimized out>) at ../../gdb/event-top.c:777 #30 0x0000564c6ebea610 in gdb_rl_callback_handler (rl=0x564c70229340 "") at ../../gdb/event-top.c:214 #31 0x00007f8cf2164e7e in rl_callback_read_char () from /lib64/libreadline.so.7 #32 0x0000564c6ebea526 in gdb_rl_callback_read_char_wrapper_noexcept () at ../../gdb/event-top.c:176 #33 0x0000564c6ebea5ad in gdb_rl_callback_read_char_wrapper (client_data=<optimized out>) at ../../gdb/event-top.c:192 #34 0x0000564c6ebeaad8 in stdin_event_handler (error=<optimized out>, client_data=0x564c6fda6ff0) at ../../gdb/event-top.c:514 #35 0x0000564c6ebe991d in gdb_wait_for_event (block=<optimized out>) at ../../gdb/event-loop.c:859 #36 0x0000564c6ebe9ac8 in gdb_do_one_event () at ../../gdb/event-loop.c:347 #37 0x0000564c6ebe9bde in gdb_do_one_event () at ../../gdb/event-loop.c:371 #38 start_event_loop () at ../../gdb/event-loop.c:371 #39 0x0000564c6ec4e03b in captured_command_loop () at ../../gdb/main.c:331 #40 0x0000564c6ec4f70d in captured_main (data=0x7fff83e28270) at ../../gdb/main.c:1267 #41 gdb_main (args=0x7fff83e28270) at ../../gdb/main.c:1284 #42 0x0000564c6e9924ff in main (argc=<optimized out>, argv=<optimized out>) at ../../gdb/gdb.c:40 See the full backtrace logfile gdb.txt in attachment. Since the attachment is to large. I split it to two 7z part compressed files. It can be reproduced on gdb-8.3 in gentoo