Date: Fri, 26 Mar 2004 02:24:21 -0600
From: Jeremy Messenger <mezz7@cox.net>
To: Alexander Nedotsukov <bland@FreeBSD.org>
Cc: freebsd-gnome@FreeBSD.org
Subject: Re: Time to put ${PTHREAD_LIBS} in the x11/xscreensaver-gnome?
Message-ID: <opr5gmyvsi8ckrg5@smtp.central.cox.net>
In-Reply-To: <4063E2B2.5030306@FreeBSD.org>
References: <opr5epdtjo8ckrg5@smtp.central.cox.net> <opr5f73a2m8ckrg5@smtp.central.cox.net> <4063B4C0.9050001@FreeBSD.org> <1080276619.16291.11.camel@shumai.marcuscom.com> <4063E2B2.5030306@FreeBSD.org>
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On Fri, 26 Mar 2004 16:58:42 +0900, Alexander Nedotsukov
<bland@FreeBSD.org> wrote:
> Joe Marcus Clarke wrote:
>
>> On Thu, 2004-03-25 at 23:42, Alexander Nedotsukov wrote:
>>
>>> Jeremy Messenger wrote:
>>>
>>>
>>>> On Thu, 25 Mar 2004 23:46:28 +0900, Alexander Nedotsukov
>>>> <bland@FreeBSD.org> wrote:
>>>>
>>>> <snip>
>>>>
>>>>
>>>>> Well to be constructive can people (not only once who currently
>>>>> expirince a problem with xscreensaver) try the patch attached and
>>>>> report
>>>>> two things is: it works and what is your GL library Nvidia/Mesa?
>>>>>
>>>> I tried this patch and it doesn't fix the crash. Here using Nvidia
>>>> driver.
>>>>
>>> Jeremy, I looked into your ldd output and it same to mine. There is no
>>> any single object linked against libc_r, libthr, libkse or libpthread.
>>> Can this be world + kernel problem?
>>> About the patch. Its purpose not link GL hacks against libpthread.
>>> They don't use any pthreads api so why we need this?
>>>
>>
>> The problem isn't with the -demo binary, but with the hacks that the
>> binary loads. On my -CURRENT system, libGL is linked to libpthread, and
>> so are my GL-based hacks:
>>
> /me confused and feels like missed something important...
Indeed, so I am.. :-)
> Wich crash we talking about than? xscreensaver-demo use fork() & exec()
> for hack preview. GL hack crash should not affect xscreensaver-demo. If
> I remove libmapping for GL hacks they start coredump but still have no
> problem with selecting/previewing/using another non-GL hack.
>
> I was always thinking about this:
>
> hilton>$ xscreensaver-demo
> xscreensaver-demo: 12:32:45: error closing
> "/usr/home/stephenh/.xscreensav
> er": Bad file descriptor
> xscreensaver-demo: too early for dialog?
> Fatal error 'Unable to read from thread kernel pipe' at line 1100 in file
> /usr/src/lib/libc_r/uthread/uthread_kern.c (errno = 0)
> Abort trap (core dumped)
> hilton>$
>
>
> Jeremy, can you try let's say /usr/X11R6/bin/xscreensaver-hacks/glmatrix
> from cli?
Actually, the screensavers work fine but I just can't run that
xscreensaver-demo w/out ${PTHREAD_LIBS}. It's how I caught
xscreensaver-demo crashed, because I want to disable the screensaver when
I noticed that screensaver was enabled. See my old thread (around three
weeks ago)...
http://lists.freebsd.org/mailman/htdig/freebsd-gnome/2004-March/005480.html
================================
[...]
Strange, I don't see anything wrong with ldd. It's weird that the
screensaver, itself does work fine but I just can't run that
xscreensaver-demo.
================================
Cheers,
Mezz
>> ldd /usr/X11R6/bin/xscreensaver-hacks/glplanet
>> glplanet:
>>
> ...
>
>> libintl.so.6 => /usr/local/lib/libintl.so.6 (0x2857b000)
>> libstdc++.so.4 => /usr/lib/libstdc++.so.4 (0x28584000)
>>
>> I bet if you rebuilt xscreensaver without GL support, it would work
>> fine. I think adding PTHREAD_LIBS to the build may be the obly way to
>> fix this for libpthread users.
>>
> Ideally if libmap works correct they (libc_r users) should not see any
> difference. My problem is I still do not understand what we going to
> fix. I feel like something but not xscreensaver problem.
>
>> Of course, as a test, you might try libmapping libthread to libc_r, and
>> see if you can reproduce this, Alexander. I can try the same thing. I
>> know I can.
>>
> This is what I doing all the time to let GL hacks play. I will try to
> switch back to stock nv driver and MesaGL library later today the only
> combination I did not test.
>
> All the best,
> Alexander.
>
>> Joe
--
bsdforums.org 's moderator, mezz.
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