Re: [ecasound] Fw: Re: Bug#106765: ecasignalview segfault on startup 80% of times

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Subject: Re: [ecasound] Fw: Re: Bug#106765: ecasignalview segfault on startup 80% of times
From: Kai Vehmanen (k_AT_eca.cx)
Date: Wed Jul 17 2002 - 07:15:21 EEST

This issue is now (finally) fixed in ecasound's CVS-tree (2.1devX series).
Ecasignalview was basicly rewritten. It's now much more robust (no more
segfaults), less resource-hungry and the user-interface is now a _lot_
nicer.

Instead of raw numbers, ecasignalview now draws the vu-meters using
ascii graphics. The old "-ev screen" is still printed when ecasignalview
is stopped, but it's not continuously updated anymore (this was way too
expensive for a simple text tool).

On Sat, 28 Jul 2001, Junichi Uekawa wrote:

> I cannot reproduce this bug, but this is a gdb output.
> Anyone know of anything ?
>
> A full log of the bug report can be seen with
>
> http://bugs.debian.org/106765
>
>
>
>
> Begin forwarded message:
>
> Date: Fri, 27 Jul 2001 15:35:53 -0400
> From: Sylvain Bernier <sbernier_AT_thekeyboard.com>
> To: Junichi Uekawa <dancer_AT_netfort.gr.jp>
> Subject: Re: Bug#106765: ecasignalview segfault on startup 80% of times
>
>
>
> Ok... I downloaded sources, build with debug info and did the "backtrace". Here's the results :
>
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 1024 (LWP 15108)]
> vector<unsigned long, allocator<unsigned long> >::begin (this=0x0)
> at /usr/lib/gcc-lib/i386-linux/2.95.4/../../../../include/g++-3/stl_vector.h:195
> 195 iterator begin() { return _M_start; }
> (gdb) backtrace
> #0 vector<unsigned long, allocator<unsigned long> >::begin (this=0x0)
> at /usr/lib/gcc-lib/i386-linux/2.95.4/../../../../include/g++-3/stl_vector.h:195
> #1 0x4017beb4 in vector<unsigned long, allocator<unsigned long> >::operator[]
> (this=0x0, __n=0)
> at /usr/lib/gcc-lib/i386-linux/2.95.4/../../../../include/g++-3/stl_vector.h:218
> #2 0x400f8bb3 in EFFECT_ANALYZE::status_entry (this=0xbffffa70, range=0)
> at audiofx_analysis.cpp:40
> #3 0x400f8fd6 in EFFECT_ANALYZE::status (this=0xbffffa70)
> at audiofx_analysis.cpp:69
> #4 0x804f9bf in main (argc=1, argv=0xbffffd1c) at ecatools_signalview.cpp:173
> #5 0x4036d2eb in __libc_start_main () from /lib/libc.so.6
> (gdb)
>
>
>
> 

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