Bug#570915: applications crash with SIGSEGV when starting

[Sven Joachim <svenjoac@gmx.de>]

tags 570915 + moreinfo
thanks

On 2010-02-22 09:29 +0100, Frank Lin PIAT wrote:

> reassign 570915 ncurses

Please CC <newpackage>@packages.debian.org when you reassign a bug, all
I received was the message from the control bot, and I had to look up
the report on the Web.

> On Mon, 2010-02-22 at 08:36 +0100, Frank Lin PIAT wrote: 
>> Package: aptitude
>> Severity: important
>> 
>> [SNIP]
>> Since my last packages upgrade of DebianTesting, aptitude crash when
>> I use it's ncurse interface (from console and xterm):
>> 
>> Error:
>> >  Ouch!  Got SIGSEGV, dying..
>> >  Segmentation fault
>
> On my system, some (most/all?) other libncursesw5 based applications are
> affected, like lynx-cur, powertop, dialog, nano

It goes without saying that all these programs work fine on ten
thousands systems, so I suspect this is a problem on your site.  Please
run "debsums libncursesw5 ncurses-base" and fsck your filesystems.

> I have added a strace for:
>> dialog --infobox Hello 10 10

Unfortunately strace is useless for segfaults.  Please install
libncursesw5-dbg and run the program under GDB, e.g.

LD_LIBRARY_PATH=/usr/lib/debug gdb nano

When the program segfaults, type "bt" at the gdb prompt and send the
backtrace.  Hopefully gdb does not segfault itself 8-) (it's linked
against libncurses5, but not libncursesw5).

Sven