From: Keith Owens <kaos@sgi.com>
To: linux-ia64@vger.kernel.org
Subject: Re: Backtrace problems from a signal handler
Date: Wed, 27 Jul 2005 01:09:58 +0000 [thread overview]
Message-ID: <4459.1122426598@kao2.melbourne.sgi.com> (raw)
In-Reply-To: <13701.1122269352@kao2.melbourne.sgi.com>
On Mon, 25 Jul 2005 15:29:12 +1000,
Keith Owens <kaos@sgi.com> wrote:
>gdb with libunwind support does not unwind correctly if a signal
>handler calls another function which then takes a core dump.
>
>SuSE SLES9 SP2. gdb-6.3-16.4. libunwind-0.98.5-3.2. gcc 3.3.3.
David Mosberger suggested checking the CVS version of gdb. The
gdb-6.3.50.20050726 snapshot handles backtrace through a signal
handler when the handler calls another function.
Program received signal SIGABRT, Aborted.
0xa000000000010641 in __kernel_syscall_via_break ()
(gdb) bt
#0 0xa000000000010641 in __kernel_syscall_via_break ()
#1 0x20000000000a8690 in raise () from /lib/tls/libc.so.6.1
#2 0x20000000000aadf0 in abort () from /lib/tls/libc.so.6.1
#3 0x4000000000000740 in foo () at signal-test.c:6
#4 0x4000000000000780 in handler (sig\x14) at signal-test.c:12
#5 <signal handler called>
#6 0xa000000000010640 in __kernel_syscall_via_break ()
#7 0x20000000000a8a80 in kill () from /lib/tls/libc.so.6.1
#8 0x4000000000000810 in main () at signal-test.c:18
prev parent reply other threads:[~2005-07-27 1:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-25 5:29 Backtrace problems from a signal handler Keith Owens
2005-07-27 1:09 ` Keith Owens [this message]
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