weird xemacs crash

weird xemacs crash

[Eliot Moss]

Dear Cygwin X --

I have a situation where cygwin xemacs, both 21.4.23-1 and the newer
-2 crash when trying to open a file with certain content.  (I copied
the file; opening it under the other name fails too.)  It's a
relatively small file, some .c source.  The characters used are all
reasonable ASCII: newline plus space through 175 octal.  The length
is 2601 bytes.

Here is the stackdump:

Stack trace:
Frame     Function  Args
002899C4  61030F12 (000002E0, 0000EA60, 000000A4, 00289A24)
00289AE4  610E468A (6119EE10, 00000000, 00289B18, 00000000)

What's the next step?

Regards -- EM

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Re: weird xemacs crash

[Jon TURNEY]

On 17/02/2015 20:35, Eliot Moss wrote:
> Dear Cygwin X --
>
> I have a situation where cygwin xemacs, both 21.4.23-1 and the newer
> -2 crash when trying to open a file with certain content.  (I copied
> the file; opening it under the other name fails too.)  It's a
> relatively small file, some .c source.  The characters used are all
> reasonable ASCII: newline plus space through 175 octal.  The length
> is 2601 bytes.
>
> Here is the stackdump:
>
> Stack trace:
> Frame     Function  Args
> 002899C4  61030F12 (000002E0, 0000EA60, 000000A4, 00289A24)
> 00289AE4  610E468A (6119EE10, 00000000, 00289B18, 00000000)
>
> What's the next step?

Assuming I have the same cygwin DLL as you...

> $ cat stackdump | awk '/^[0-9]/{print $2}' | addr2line -asf -e /usr/lib/debug/usr/bin/cygwin1.dbg | paste - - - | column -t
> 0x61030f12  _ZN7_cygtls19call_signal_handlerEv@4        exceptions.cc:1490
> 0x610e468a  _Z8sig_sendP6_pinfoR9siginfo_tP7_cygtls@12  sigproc.cc:714

But are you sure this isn't the problem mentioned in [1]?

[1] https://cygwin.com/ml/cygwin/2015-02/msg00339.html

-- 
Jon TURNEY
Volunteer Cygwin/X X Server maintainer

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Re: weird xemacs crash

[Eliot Moss]

On 2/18/2015 8:14 AM, Jon TURNEY wrote:
> On 17/02/2015 20:35, Eliot Moss wrote:
>> Dear Cygwin X --
>>
>> I have a situation where cygwin xemacs, both 21.4.23-1 and the newer
>> -2 crash when trying to open a file with certain content.  (I copied
>> the file; opening it under the other name fails too.)  It's a
>> relatively small file, some .c source.  The characters used are all
>> reasonable ASCII: newline plus space through 175 octal.  The length
>> is 2601 bytes.

> But are you sure this isn't the problem mentioned in [1]?
>
> [1] https://cygwin.com/ml/cygwin/2015-02/msg00339.html

The work-around suggested there does seem to prevent the crash.
I could not tell that that was what it was because it fails so
quickly I could not see anything.

Looking forward to the fixed 21.4!

Thanks!   Eliot

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