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Re: 1.7.10s 20110729 - problem listing services in /proc
- From: Corinna Vinschen <corinna-cygwin at cygwin dot com>
- To: cygwin at cygwin dot com
- Date: Sat, 30 Jul 2011 10:21:30 +0200
- Subject: Re: 1.7.10s 20110729 - problem listing services in /proc
- References: <4E3302E5.6000602@acm.org> <j105ne$jrp$1@dough.gmane.org>
- Reply-to: cygwin at cygwin dot com
On Jul 30 14:44, jojelino wrote:
> Breakpoint 2, fhandler_registry::close (this=0x612cba5c)
> at /tmp/winsup/winsup/cygwin/fhandler_registry.cc:856
> 856 cfree (value_name);
> 10: this->value_name = 0x612cb374 L"services"
> (gdb)
> Continuing.
>
> 0x612cba5c->value_name = 0
> 0x612cb124_2->value_name = 0x612cba5c->value_name = 0x612cb374
> L"services" (quadruple-freed but known as not freed)
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x7c80bef7 in RaiseException () from
> /cygdrive/c/WINDOWS/system32/kernel32.dll
>
> In brief, same address quadruple-freed. because of dangling pointer.
> Regards.
It turned out that I could reproduce the problem, I just didn't notice
it. I expected an error message but find died silently, so I took that
as "it works". Serves me right for looking into Cygwin bug reports too
late at night.
Fixed in CVS. I'm going to create a new snpshot.
Corinna
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Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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