Re: [Bug-apl] Attention signal issues

[David B. Lamkins]

Here's another data point:

APL built without readline exhibits the same crash as APL run inside
Emacs.

It seems that the absence of readline is the trigger for this crash.


On Mon, 2014-07-21 at 09:23 -0700, David B. Lamkins wrote:
> Thank you.
> 
> I no longer see the APserver termination message upon an attention
> signal.
> 
> However, the segfault and backtrace still happens when APL runs inside
> Emacs.
> 
> Also, please note my other post regarding detection of the attention
> signal.
> 
> On Mon, 2014-07-21 at 12:24 +0200, Juergen Sauermann wrote:
> > Hi David,
> > 
> > thanks, should be fixed in SVN 381.
> > 
> > /// Jürgen
> > 
> > 
> > On 07/20/2014 07:40 PM, David Lamkins wrote:
> > 
> > > Jüergen and Elias, I think there might be something here for each of
> > > you.
> > > 
> > > 
> > > See comments in attached test case.
> > > 
> > > 
> > > There are two transcripts following:
> > > 
> > > 
> > > 
> > > 1. From within gnu-apl-mode:
> > > 
> > >       )load foo
> > > loading )DUMP file /home/dlamkins/APL/workspaces/foo.apl...
> > > WAS CLEAR WS
> > >       test
> > > test   C-c C-c
> > > 
> > > =====
> > > APserver terminated by SIGINT===================================
> > > ============
> > > SEGMENTATION FAULT
> > > 
> > > ----------------------------------------
> > > -- Stack trace at main.cc:133
> > > ----------------------------------------
> > > 0x7fa1346e2d65 __libc_start_main
> > > 0x43af15  main
> > > 0x53344d   Workspace::immediate_execution(bool)
> > > 0x473135    Command::process_line()
> > > 0x46d17a     Command::do_APL_expression(UCS_string&)
> > > 0x47c955      Executable::execute_body() const
> > > 0x4ed880       StateIndicator::run()
> > > 0x4a34f0        Prefix::reduce_statements()
> > > 0x4fe799         Symbol::resolve(Token&, bool)
> > > 0x5095fd          Quad_QUOTE::get_apl_value() const
> > > 0x487e4b           Input::get_quad_cr_line(UCS_string)
> > > 0x7fa13474761a            strlen
> > > 0x7fa1361a3750             
> > > 0x48dada              
> > > ========================================
> > > ====================================================
> > > 
> > > 
> > > Process apl exited abnormally with code 3
> > > 
> > > 
> > > 
> > > 2. When run standalone in a terminal:
> > > 
> > >       )load foo
> > > loading )DUMP file /home/dlamkins/APL/workspaces/foo.apl...
> > > WAS CLEAR WS
> > >       test
> > > test ^C
> > > APserver terminated by SIGINT
> > > ^C
> > > ATTENTION
> > > test[2]  →loop
> > >           ^
> > > 
> > > 
> > > -- 
> > > "The secret to creativity is knowing how to hide your sources."
> > >    Albert Einstein
> > > 
> > > 
> > > http://soundcloud.com/davidlamkins
> > > http://reverbnation.com/lamkins
> > > http://reverbnation.com/lcw
> > > http://lamkins-guitar.com/
> > > http://lamkins.net/
> > > http://successful-lisp.com/
> > 
>