public inbox for gdb-prs@sourceware.org
help / color / mirror / Atom feed
* [Bug symtab/30837] New: [gdb/symtab, index-cache] data race on current_inferior_
@ 2023-09-08 14:27 vries at gcc dot gnu.org
  2023-11-27 20:15 ` [Bug symtab/30837] " cvs-commit at gcc dot gnu.org
                   ` (12 more replies)
  0 siblings, 13 replies; 14+ messages in thread
From: vries at gcc dot gnu.org @ 2023-09-08 14:27 UTC (permalink / raw)
  To: gdb-prs

https://sourceware.org/bugzilla/show_bug.cgi?id=30837

            Bug ID: 30837
           Summary: [gdb/symtab, index-cache] data race on
                    current_inferior_
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: symtab
          Assignee: unassigned at sourceware dot org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

Created attachment 15106
  --> https://sourceware.org/bugzilla/attachment.cgi?id=15106&action=edit
gdb.log

When building gdb with -fsanitize=threads and using soon to be submitted target
board cc-with-index-cache, I run into a data race in test-case
gdb.ada/non-ascii-utf-8.exp
...
==================^M
^[[1m^[[31mWARNING: ThreadSanitizer: data race (pid=25220)^M
^[[1m^[[0m^[[1m^[[34m  Read of size 8 at 0x000003342928 by thread T12:^M
^[[1m^[[0m    #0 gdb::ref_ptr<inferior, refcounted_object_ref_policy>::get()
const /data/vries/gdb/src/gdb/../gdbsupport/gdb_ref_ptr.h:132 (gdb+0xa690b8)^M
    #1 current_inferior() /data/vries/gdb/src/gdb/inferior.c:57
(gdb+0xa63b74)^M
    #2 target_supports_terminal_ours() /data/vries/gdb/src/gdb/target.c:1121
(gdb+0xfaefd4)^M
    #3 vwarning(char const*, __va_list_tag*)
/data/vries/gdb/src/gdb/utils.c:147 (gdb+0x10e54c5)^M
    #4 warning(char const*, ...) /data/vries/gdb/src/gdbsupport/errors.cc:34
(gdb+0x1dc04e4)^M
    #5 ada_encode_1 /data/vries/gdb/src/gdb/ada-lang.c:1000 (gdb+0x47d348)^M
    #6 ada_encode[abi:cxx11](char const*, bool)
/data/vries/gdb/src/gdb/ada-lang.c:1159 (gdb+0x47dd12)^M
    #7 write_cooked_index /data/vries/gdb/src/gdb/dwarf2/index-write.c:1142
(gdb+0x832e42)^M
    #8 write_gdbindex /data/vries/gdb/src/gdb/dwarf2/index-write.c:1236
(gdb+0x83348b)^M
  ...
^M
^[[1m^[[34m  Previous write of size 8 at 0x000003342928 by main thread:^M
^[[1m^[[0m    #0 gdb::ref_ptr<inferior,
refcounted_object_ref_policy>::reset(inferior*)
/data/vries/gdb/src/gdb/../gdbsupport/gdb_ref_ptr.h:125 (gdb+0xa6a2bf)^M
    #1 gdb::ref_ptr<inferior,
refcounted_object_ref_policy>::operator=(gdb::ref_ptr<inferior,
refcounted_object_ref_policy>&&)
/data/vries/gdb/src/gdb/../gdbsupport/gdb_ref_ptr.h:113 (gdb+0xa691cc)^M
    #2 set_current_inferior(inferior*) /data/vries/gdb/src/gdb/inferior.c:66
(gdb+0xa63bf6)^M
    #3 switch_to_inferior_no_thread(inferior*)
/data/vries/gdb/src/gdb/inferior.c:714 (gdb+0xa66df9)^M
    #4 scoped_restore_current_thread::restore()
/data/vries/gdb/src/gdb/thread.c:1397 (gdb+0xfe1f9b)^M
    #5 scoped_restore_current_thread::~scoped_restore_current_thread()
/data/vries/gdb/src/gdb/thread.c:1415 (gdb+0xfe20c9)^M
    #6
scoped_restore_current_pspace_and_thread::~scoped_restore_current_pspace_and_thread()
/data/vries/gdb/src/gdb/progspace-and-thread.h:29 (gdb+0x628ef7)^M
    #7 bp_loc_is_permanent /data/vries/gdb/src/gdb/breakpoint.c:8532
(gdb+0x609bed)^M
    #8 code_breakpoint::add_location(symtab_and_line const&)
/data/vries/gdb/src/gdb/breakpoint.c:8509 (gdb+0x609acc)^M
    #9 internal_breakpoint::internal_breakpoint(gdbarch*, bptype, unsigned
long) /data/vries/gdb/src/gdb/breakpoint.c:350 (gdb+0x6282a3)^M
    #10 create_internal_breakpoint /data/vries/gdb/src/gdb/breakpoint.c:3454
(gdb+0x5f71c0)^M
    #11 create_internal_breakpoint /data/vries/gdb/src/gdb/breakpoint.c:3485
(gdb+0x5f7346)^M
    #12 create_exception_master_breakpoint_hook
/data/vries/gdb/src/gdb/breakpoint.c:3856 (gdb+0x5f86dc)^M
    #13 create_exception_master_breakpoint
/data/vries/gdb/src/gdb/breakpoint.c:3882 (gdb+0x5f8899)^M
    #14 breakpoint_re_set() /data/vries/gdb/src/gdb/breakpoint.c:13262
(gdb+0x61c3f1)^M
    #15 symbol_file_command(char const*, int)
/data/vries/gdb/src/gdb/symfile.c:1686 (gdb+0xf44c8d)^M
    #16 file_command /data/vries/gdb/src/gdb/exec.c:554 (gdb+0x94f99f)^M
...

-- 
You are receiving this mail because:
You are on the CC list for the bug.

^ permalink raw reply	[flat|nested] 14+ messages in thread
end of thread, other threads:[~2024-05-17 14:17 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-09-08 14:27 [Bug symtab/30837] New: [gdb/symtab, index-cache] data race on current_inferior_ vries at gcc dot gnu.org
2023-11-27 20:15 ` [Bug symtab/30837] " cvs-commit at gcc dot gnu.org
2023-11-27 23:28 ` tromey at sourceware dot org
2023-11-30 17:02 ` tromey at sourceware dot org
2023-12-02  0:23 ` tromey at sourceware dot org
2023-12-04 15:54 ` tromey at sourceware dot org
2024-01-19 16:35 ` tromey at sourceware dot org
2024-02-12 19:08 ` tromey at sourceware dot org
2024-02-13 21:04 ` tromey at sourceware dot org
2024-02-14 12:33 ` tromey at sourceware dot org
2024-03-12 14:41 ` tromey at sourceware dot org
2024-03-26 15:55 ` cvs-commit at gcc dot gnu.org
2024-03-26 15:56 ` tromey at sourceware dot org
2024-05-17 14:17 ` tromey at sourceware dot org

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).