Created attachment 428944 [details] emerge --info It works with simple singlethreaded programs, but not with certain multithreaded app, I have not yet determined whether threads or something else causes the problem. On x64 system, AMD Athlon II 630 CPU. ================== With gdb-7.10.1: ^C Program received signal SIGINT, Interrupt. 0x00000034df6e152d in poll () at ../sysdeps/unix/syscall-template.S:81 81 ../sysdeps/unix/syscall-template.S: File not found. (gdb) record (gdb) c Continuing. (null)Process record: failed to record execution log. [Thread 0x7fffc05e4740 (LWP 5031)] #1 stopped. ================== With gdb-7.11: ^C Thread 1 "euclient" received signal SIGINT, Interrupt. 0x00000034df6e152d in poll () at ../sysdeps/unix/syscall-template.S:81 81 ../sysdeps/unix/syscall-template.S: File not found. (gdb) record (gdb) c Continuing. ./nat/x86-linux-dregs.c:146: internal-error: x86_linux_update_debug_registers: Assertion `lwp_is_stopped (lwp)' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. This is a bug, please report it. For instructions, see: <https://bugs.gentoo.org/>. zsh: abort (core dumped) gdb -x ../gdbinit ================= Backtrace from above core: #0 0x00000034df633717 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55 #1 0x00000034df634b3d in __GI_abort () at abort.c:89 #2 0x00000000006ab616 in dump_core () at utils.c:561 #3 0x00000000006added in internal_vproblem (problem=problem@entry=0xc40a20 <internal_error_problem>, file=<optimized out>, line=<optimized out>, fmt=<optimized out>, ap=ap@entry=0x7ffede87ce10) at utils.c:769 #4 0x00000000006adeb9 in internal_verror (file=<optimized out>, line=<optimized out>, fmt=<optimized out>, ap=ap@entry=0x7ffede87ce10) at utils.c:795 #5 0x00000000006e224f in internal_error (file=file@entry=0x7b8258 "./nat/x86-linux-dregs.c", line=line@entry=146, fmt=<optimized out>) at ./common/errors.c:55 #6 0x00000000004b1748 in x86_linux_update_debug_registers (lwp=0xf652c50) at ./nat/x86-linux-dregs.c:146 #7 0x00000000004a058c in linux_resume_one_lwp_throw (lp=lp@entry=0xf652c50, step=step@entry=1, signo=signo@entry=GDB_SIGNAL_0) at linux-nat.c:1421 #8 0x00000000004a1d3a in linux_resume_one_lwp (lp=lp@entry=0xf652c50, step=step@entry=1, signo=signo@entry=GDB_SIGNAL_0) at linux-nat.c:1475 #9 0x00000000004a4b8a in linux_nat_resume (ops=<optimized out>, ptid=..., step=1, signo=GDB_SIGNAL_0) at linux-nat.c:1666 #10 0x00000000006cea2e in record_full_wait_1 (options=1, status=0x7ffede87d2c0, ptid=..., ops=0xc62580 <record_full_ops>) at record-full.c:1181 #11 record_full_wait (ops=0xc62580 <record_full_ops>, ptid=..., status=0x7ffede87d2c0, options=1) at record-full.c:1354 #12 0x00000000005f7add in delegate_wait (self=<optimized out>, arg1=..., arg2=<optimized out>, arg3=<optimized out>) at target-delegates.c:116 #13 0x0000000000607da4 in target_wait (ptid=..., status=status@entry=0x7ffede87d2c0, options=options@entry=1) at target.c:2258 #14 0x00000000005b4e59 in do_target_wait (ptid=..., status=status@entry=0x7ffede87d2c0, options=1) at infrun.c:3642 #15 0x00000000005c0d97 in fetch_inferior_event (client_data=<optimized out>) at infrun.c:3900 #16 0x00000000005d995a in inferior_event_handler (event_type=<optimized out>, client_data=<optimized out>) at inf-loop.c:44 #17 0x00000000005d7cc4 in check_async_event_handlers () at event-loop.c:1038 #18 gdb_do_one_event () at event-loop.c:302 #19 0x00000000005d7d8e in start_event_loop () at event-loop.c:347 #20 0x00000000005d1533 in captured_command_loop (data=data@entry=0x0) at main.c:318 #21 0x00000000005ce055 in catch_errors (func=func@entry=0x5d1520 <captured_command_loop>, func_args=func_args@entry=0x0, errstring=errstring@entry=0x7b8a99 "", mask=mask@entry=RETURN_MASK_ALL) at exceptions.c:240 #22 0x00000000005d2656 in captured_main (data=data@entry=0x7ffede87d600) at main.c:1157 #23 0x00000000005ce055 in catch_errors (func=func@entry=0x5d1b80 <captured_main>, func_args=func_args@entry=0x7ffede87d600, errstring=errstring@entry=0x7b8a99 "", mask=mask@entry=RETURN_MASK_ALL) at exceptions.c:240 #24 0x00000000005d2afb in gdb_main (args=args@entry=0x7ffede87d600) at main.c:1165 #25 0x000000000045d735 in main (argc=<optimized out>, argv=<optimized out>) at gdb.c:32
I have this issue with gdb-7.12.1, too
Does it still happen for people on modern gdb?
