Re: [a-devel] AGNULA/DeMuDi 1.1.1 and 2.6.x kernel

[Paul Brossier <piem-lists@altern.org>]

here we go

$ gdb `which jackd` core*
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This GDB was configured as "i386-linux"...(no debugging symbols
found)...Using host libthread_db library "/lib/tls/libthread_db.so.1".

Core was generated by `jackd -d alsa'.
Program terminated with signal 11, Segmentation fault.

warning: current_sos: Can't read pathname for load map: Input/output error

Reading symbols from /usr/lib/libjack-0.80.0.so.0...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libjack-0.80.0.so.0
Reading symbols from /lib/libcap.so.1...(no debugging symbols
found)...done.
Loaded symbols for /lib/libcap.so.1
Reading symbols from /lib/libreadline.so.4...(no debugging symbols
found)...done.
Loaded symbols for /lib/libreadline.so.4
Reading symbols from /lib/tls/libm.so.6...(no debugging symbols
found)...done.
Loaded symbols for /lib/tls/libm.so.6
Reading symbols from /lib/tls/libpthread.so.0...(no debugging symbols
found)...done.
[Thread debugging using libthread_db enabled]
Loaded symbols for /lib/tls/libpthread.so.0
Reading symbols from /lib/tls/libdl.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/tls/libdl.so.2
Reading symbols from /lib/tls/libc.so.6...(no debugging symbols
found)...done.
Loaded symbols for /lib/tls/libc.so.6
Reading symbols from /lib/libncurses.so.5...(no debugging symbols
found)...done.
Loaded symbols for /lib/libncurses.so.5
Reading symbols from /lib/ld-linux.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /usr/lib/libasound.so.2...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libasound.so.2
Reading symbols from /lib/libgcc_s.so.1...(no debugging symbols
found)...done.
Loaded symbols for /lib/libgcc_s.so.1
#0  0x4008ad4c in pthread_cancel () from /lib/tls/libpthread.so.0
(no debugging symbols found)...(gdb) thread apply all bt

Thread 2 (process 26270):
#0  0x401a5a57 in _Unwind_Find_FDE () from /lib/tls/libc.so.6
#1  0x0000000b in ?? ()
#2  0x00000000 in ?? ()
#3  0xffffe53c in ?? ()
#4  0x40a1c34c in ?? ()
#5  0x40095114 in ?? ()
#6  0x0000000b in ?? ()
#7  0xffffe530 in ?? ()
#8  0x00000000 in ?? ()
#9  0x00000001 in ?? ()
#10 0x400950b4 in ?? ()
#11 0x00000008 in ?? ()
#12 0x00000003 in ?? ()
#13 0xffffe46c in ?? ()
#14 0x00000000 in ?? ()
#15 0x40089694 in pthread_mutex_lock () from /lib/tls/libpthread.so.0
#16 0x4137a8b4 in ?? () from /lib/libgcc_s.so.1
#17 0x00000008 in ?? ()
#18 0x40a1c464 in ?? ()
#19 0x40089694 in pthread_mutex_lock () from /lib/tls/libpthread.so.0
#20 0x41376162 in __frame_state_for () from /lib/libgcc_s.so.1
#21 0x00000000 in ?? ()
#22 0x00000000 in ?? ()
#23 0x00000000 in ?? ()
#24 0x00000000 in ?? ()
#25 0x00000000 in ?? ()
#26 0x40a1c6a4 in ?? ()
#27 0xffffe440 in __kernel_sigreturn ()

Thread 1 (process 26269):
#0  0x4008ad4c in pthread_cancel () from /lib/tls/libpthread.so.0
#1  0x0804c30f in ?? ()
#2  0x00000000 in ?? ()
#3  0x00000000 in ?? ()
#4  0x0000001a in ?? ()
#5  0x00000000 in ?? ()
#6  0x00000000 in ?? ()
---Type <return> to continue, or q <return> to quit---
#7  0x08066a90 in ?? ()
#8  0x00000002 in ?? ()
#9  0x0804af97 in ?? ()
#10 0x08066a90 in ?? ()
#11 0x08056460 in optopt ()
#12 0x00000000 in ?? ()
#13 0x401c5e80 in _IO_2_1_stdout_ () from /lib/tls/libc.so.6
#14 0x00000000 in ?? ()
#15 0x000001f4 in ?? ()
#16 0x00000080 in ?? ()
#17 0x0000669d in ?? ()
#18 0x080585d8 in ?? ()
#19 0x40016c40 in ?? () from /lib/ld-linux.so.2
#20 0x40017c84 in ?? ()
#21 0x4002583d in ?? () from /usr/lib/libjack-0.80.0.so.0
#22 0xbffff658 in ?? ()
#23 0x400083cf in _dl_lookup_versioned_symbol () from /lib/ld-linux.so.2
#24 0x400aa7f8 in __libc_start_main () from /lib/tls/libc.so.6
#25 0x401ccebc in ?? () from /lib/tls/libc.so.6
#0  0x4008ad4c in pthread_cancel () from /lib/tls/libpthread.so.0
(gdb) q

piem

On Wed, Jun 30, 2004 at 12:32:53PM -0500, Jack O'Quin wrote:
> > On Sat, Jun 26, 2004 at 12:42:31PM -0500, Jack O'Quin wrote:
> > > The question is why that didn't happen in the first place.  To answer
> > > that, we need information about why and how jackd crashed originally.
> 
> Paul Brossier <piem-lists@altern.org> writes:
> > i paste below the output of 'jackd -d alsa'. signal 2 was Ctrl+C.
> > 
> > $ jackd -d alsa
> > jackd 0.98.1
> ...
> > **** alsa_pcm: xrun of at least 20.958 msecs
> > 
> > jack main caught signal 2
> > Segmentation fault
> 
> Can you get a dump of this segfault and send me a stack backtrace?
> 
>   $ ulimit -c unlimited
>   $ jackd -d alsa
>   Ctrl+C   (to cancel)
>   segfault
>   $ gdb `which jackd` core*
>   (gdb) thread apply all bt
> 
> -- 
>   joq
> 
> 
> -- 
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