Re: [Bug-apl] Attention signal issues

[Juergen Sauermann]

Hi David,

good point, thanks. Maybe fixed in SVN 383.

/// Jürgen


On 07/21/2014 07:40 PM, David B. Lamkins wrote:
> 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
> > > >
> > > >
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