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Re: Backtrace doesn't terminate.
- From: Ramana Radhakrishnan <ramana dot radhakrishnan at codito dot com>
- To: Girish Shilamkar <girish at linsyssoft dot com>
- Cc: gdb at sources dot redhat dot com
- Date: Fri, 17 Mar 2006 20:52:50 +0530
- Subject: Re: Backtrace doesn't terminate.
- References: <1142607030.5756.10.camel@krypton>
- Reply-to: ramana dot radhakrishnan at codito dot com
Hi Girish,
You need to submit a testcase and a set of steps that people can use to
replicate your problem . I doubt anyone would be able to help you out
without that.
cheers
Ramana
On Fri, 2006-03-17 at 20:20 +0530, Girish Shilamkar wrote:
> Hi All,
> I am using gdb 6.4 on Xscale processor. I found that the backtrace
> doesn't terminate for multi-threaded application, it keeps on repeating
> the last frame.
> This problem was also seen on native gdb.
>
> (gdb) bt
> #0 0x401bf06c in nanosleep ()
> from /opt/timesys/toolchains/armv5l-linux/armv5l-linux-
> debug/lib/libc.so.6
> #1 0x401beeb0 in __sleep (seconds=0)
> at ../sysdeps/unix/sysv/linux/sleep.c:137
> #2 0x00008574 in thread_func (not_used=0xbee2fba8) at multithread.c:35
> #3 0x400dc0f0 in pthread_start_thread_event (arg=0xbcbffbe0) at
> manager.c:310
> #4 0x400dc0f0 in pthread_start_thread_event (arg=0xbcbffbe0) at
> manager.c:310
> #5 0x400dc0f0 in pthread_start_thread_event (arg=0xbcbffbe0) at
> manager.c:310
> #6 0x400dc0f0 in pthread_start_thread_event (arg=0xbcbffbe0) at
> manager.c:310
> #7 0x400dc0f0 in pthread_start_thread_event (arg=0xbcbffbe0) at
> manager.c:310
> #8 0x400dc0f0 in pthread_start_thread_event (arg=0xbcbffbe0) at
> manager.c:310
>
> On investigating further I found that registers remained unchanged
> except sp, for these frames.
>
> (gdb) fr 3
> #3 0x400dc0f0 in pthread_start_thread_event (arg=0xbcbffbe0) at
> manager.c:310
> 310 in manager.c
> (gdb) info regi
> r0 0x0 0
> r1 0xbcbff960 -1128269472
> r2 0x0 0
> r3 0x1 1
> r4 0x174 372
> r5 0xbcbffbe0 -1128268832
> r6 0x0 0
> r7 0x400f0d6c 1074728300
> r8 0x80 128
> r9 0x400eebc0 1074719680
> r10 0x400ee000 1074716672
> r11 0x0 0
> r12 0x0 0
> sp 0xbcbffb40 -1128268992
> lr 0x400dc0f0 1074643184
> pc 0x400dc0f0 1074643184
> fps 0x0 0
> cpsr 0x60000010 1610612752
> (gdb) fr 4
> #4 0x400dc0f0 in pthread_start_thread_event (arg=0xbcbffbe0) at
> manager.c:310
> 310 in manager.c
> (gdb) info regi
> r0 0x0 0
> r1 0xbcbff960 -1128269472
> r2 0x0 0
> r3 0x1 1
> r4 0x174 372
> r5 0xbcbffbe0 -1128268832
> r6 0x0 0
> r7 0x400f0d6c 1074728300
> r8 0x80 128
> r9 0x400eebc0 1074719680
> r10 0x400ee000 1074716672
> r11 0x0 0
> r12 0x0 0
> sp 0xbcbffbd8 -1128268840
> lr 0x400dc0f0 1074643184
> pc 0x400dc0f0 1074643184
> fps 0x0 0
> cpsr 0x60000010 1610612752
> (gdb)
>
> Kindly let me know where things might be going wrong.
>
> Thanks & Regards,
> -Girish.
>