From bug-octave-request at bevo dot che dot wisc dot edu Tue Nov 12 14:29:04 2002
Subject: load/Ctrl-c bug
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: bsapp at lanl dot gov
Cc: bug-octave at bevo dot che dot wisc dot edu
Date: Tue, 12 Nov 2002 14:28:32 -0600

On 20-Mar-2001, Ben Sapp <bsapp at lanl dot gov> wrote:

| Bug report for Octave 2.1.33 configured for %OCTAVE_CANONICAL_HOST_TYPE%
| 
| Description:
| -----------
| 
| If you hit Ctrl-c in the middle of executing a load command Octave core
| dumps when you finally quit.  The data file I noticed this on was a
| plain asci text file.   There was one number on each line the file was
| 300,000 lines long.   
| 
| The output from gdb:
| 
| This GDB was configured as "mips-sgi-irix6.5"...
| Core was generated by `octave-2.1.33'.
| Program terminated with signal 11, Segmentation fault.
| Reading symbols from /usr/lib32/libcurses.so...done.
| Reading symbols from /usr/lib32/libdl.so...done.
| Reading symbols from /usr/lib32/libsocket.so...done.
| Reading symbols from /usr/local/lib/libz.so.1.1.3...done.
| Reading symbols from /usr/lib32/libm.so...done.
| Reading symbols from /usr/lib32/libc.so.1...done.
| #0  0x10491fe8 in _IO_flush_all () at genops.c:665
| 665         if (fp->_IO_write_ptr > fp->_IO_write_base
| (gdb) bt
| #0  0x10491fe8 in _IO_flush_all () at genops.c:665
| #1  0x10492164 in _IO_cleanup () at genops.c:694
| #2  0xfa44dcc in _exithandle () at nftw.c:349
| Current language:  auto; currently c
| (gdb) 
| 
| 
| Repeat-By:
| ---------
| 
| load temp.wav
| Ctrl-c (Make sure ctrl-c is hit before the load completes)
| quit

I think this problem is now fixed in the CVS sources.

There are still some changes that could be made in load-save.cc
to improve the way it reponds to interrupts, but I don't think that an
interrupt during load will cause a segfault now.

Thanks,

jwe



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