This is the mail archive of the
gdb-prs@sources.redhat.com
mailing list for the GDB project.
Re: threads/1154: gdb-5.3 + glibc-2.3.2 fail for my multithreaded program
- From: Mat Hostetter <mat at curl dot com>
- To: nobody at sources dot redhat dot com
- Cc: gdb-prs at sources dot redhat dot com,
- Date: 27 Mar 2003 16:28:00 -0000
- Subject: Re: threads/1154: gdb-5.3 + glibc-2.3.2 fail for my multithreaded program
- Reply-to: Mat Hostetter <mat at curl dot com>
The following reply was made to PR threads/1154; it has been noted by GNATS.
From: Mat Hostetter <mat at curl dot com>
To: Daniel Jacobowitz <drow at mvista dot com>
Cc: gdb-gnats at sources dot redhat dot com
Subject: Re: threads/1154: gdb-5.3 + glibc-2.3.2 fail for my multithreaded program
Date: 27 Mar 2003 11:23:53 -0500
FWIW this is still broken in gdb-20030327.
If I change selected_frame to get_selected_frame() as you suggest, it
does indeed fix the segfault:
GNU gdb 20030327
Copyright 2003 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i686-pc-linux-gnu"...
(gdb) handle SIG32 noprint
Signal Stop Print Pass to program Description
SIG32 No No Yes Real-time event 32
(gdb) run -s
Starting program: /local/scratch/mat/trunk/bin/curl-builder -s
Couldn't get registers: Operation not permitted.
(gdb) info threads
Couldn't get registers: Operation not permitted.
(gdb) info threads
Couldn't get registers: Operation not permitted.
(gdb) quit
The program is running. Exit anyway? (y or n) y
[hangs forever]
Trying to quit gdb after the EPERM still hangs forever.
Here is the backtrace where it's hung:
(gdb) bt 10
#0 0x400fd138 in wait () from /lib/libc.so.6
#1 0x08105adc in ptrace_wait (ptid={pid = 0, lwp = 0, tid = 0}, status=0xffffffff) at infptrace.c:206
#2 0x08105b53 in kill_inferior () at infptrace.c:229
#3 0x080f5196 in quit_force (args=0x0, from_tty=1) at top.c:1715
#4 0x08078626 in do_cfunc (c=0xfffffe00, args=0x0, from_tty=1) at cli/cli-decode.c:53
#5 0x08079ef6 in cmd_func (cmd=0x82648e8, args=0x0, from_tty=1) at cli/cli-decode.c:1531
#6 0x080f3dfe in execute_command (p=0x823fbfc "", from_tty=1) at top.c:711
#7 0x080baf01 in command_handler (command=0x823fbf8 "quit") at event-top.c:502
#8 0x080bb320 in command_line_handler (rl=0x829a930 " ?)\b") at event-top.c:797#9 0x08191f45 in rl_callback_read_char () at callback.c:123
-Mat