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Date: Sat, 04 Oct 2003 13:30:58 +0200
To: [EMAIL PROTECTED]
From: Lorenzo Viola <[EMAIL PROTECTED]>
Subject: libc6
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Package: libc6
Version: 2.3.2-7


Hi, I've two servers running debian testing a one BIG problem

These servers were up from 3 years.

A month ago I did a dselect-upgrade, and the libc6 was upgraded.
Since then I've this problem : randomly, after one-two day or after
some hours, the file :

/lib/libpthread-0.10.so ( linked from /lib/libpthread.so.0 )

goes to ZERO byte, and so many services and basic commands (like ls)
don't work anymore.

by now my libc6 version is : 2.3.2-7

[EMAIL PROTECTED]:~$ more /proc/version
Linux version 2.4.22 ([EMAIL PROTECTED]) (gcc version 3.3.2 20030812 (Debian 
prerelease)) #2 SMP mer ago 27 17:14:23 CEST 2003

[EMAIL PROTECTED]:~$ ldd /bin/ls
         librt.so.1 => /lib/librt.so.1 (0x4001a000)
         libc.so.6 => /lib/libc.so.6 (0x4002c000)
         libpthread.so.0 => /lib/libpthread.so.0 (0x4015a000)
         /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)


I've already tried reinstalling EVERYTHING from zero, but had no luck,
the problem still persists...

Looks like something creates a buffer overflow, but I can't understand
why this library becames of zero bytes.


sometimes instead of the ELF header I find this ASCII file :

/* GNU ld script
    Use the shared library, but some functions are only in
    the static library, so try that secondarily.  */
OUTPUT_FORMAT(elf32-i386)
GROUP ( /lib/libpthread.so.0 /usr/lib/libpthread_nonshared.a )

what could it mean ?

What could I check or how do I trace ? I didn't see nothing from the logs...
Is there a way to make the library create a trace, so to find out the problem ?

thank you and best regards

Computers are useless.They can only give you answers.Pablo Picasso(1881-1973)
WorkSite : http://www.eulogika.net - EulogiKa Software House 
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<html>
<body>
<br><br>
<pre>Package: libc6
Version: 2.3.2-7


</pre>Hi, I've two servers running debian testing a one BIG
problem<br><br>
These servers were up from 3 years.<br><br>
A month ago I did a dselect-upgrade, and the libc6 was upgraded.<br>
Since then I've this problem : randomly, after one-two day or after<br>
some hours, the file :<br><br>
/lib/libpthread-0.10.so ( linked from /lib/libpthread.so.0 )<br><br>
goes to ZERO byte, and so many services and basic commands (like 
ls)<br>
don't work anymore.<br><br>
by now my libc6 version is : 2.3.2-7 <br><br>
[EMAIL PROTECTED]:~$ more /proc/version<br>
Linux version 2.4.22 ([EMAIL PROTECTED]) (gcc version 3.3.2 20030812 (Debian
prerelease)) #2 SMP mer ago 27 17:14:23 CEST 2003<br><br>
[EMAIL PROTECTED]:~$ ldd /bin/ls<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; librt.so.1 =&gt;
/lib/librt.so.1 (0x4001a000)<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; libc.so.6 =&gt; /lib/libc.so.6
(0x4002c000)<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; libpthread.so.0 =&gt;
/lib/libpthread.so.0 (0x4015a000)<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /lib/ld-linux.so.2 =&gt;
/lib/ld-linux.so.2 (0x40000000)<br><br>
<br>
I've already tried reinstalling EVERYTHING from zero, but had no
luck,<br>
the problem still persists...<br><br>
Looks like something creates a buffer overflow, but I can't
understand<br>
why this library becames of zero bytes.<br><br>
<br>
sometimes instead of the ELF header I find this ASCII file :<br><br>
/* GNU ld script<br>
&nbsp;&nbsp; Use the shared library, but some functions are only in<br>
&nbsp;&nbsp; the static library, so try that secondarily.&nbsp; */<br>
OUTPUT_FORMAT(elf32-i386)<br>
GROUP ( /lib/libpthread.so.0 /usr/lib/libpthread_nonshared.a )<br><br>
what could it mean ?<br><br>
What could I check or how do I trace ? I didn't see nothing from the
logs...<br>
Is there a way to make the library create a trace, so to find out the
problem ?<br><br>
thank you and best regards<x-sigsep><p></x-sigsep>
<font face="MS Sans Serif, Geneva" size=1>Computers are useless.They can
only give you answers.Pablo Picasso(1881-1973)<br>
WorkSite :
<a href="http://www.eulogika.net/"; eudora="autourl">http://www.eulogika.net</a>
- EulogiKa Software House</font></body>
</html>

--=====================_55233721==.ALT--


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Date: Sat, 17 Jul 2004 12:09:16 +0900
Message-ID: <[EMAIL PROTECTED]>
From: GOTO Masanori <[EMAIL PROTECTED]>
To: Lorenzo Viola <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
Subject: Re: Bug#214077: libc6
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At Sat, 04 Oct 2003 13:30:58 +0200,
Lorenzo Viola wrote:
> Hi, I've two servers running debian testing a one BIG problem
> 
> These servers were up from 3 years.
> 
> A month ago I did a dselect-upgrade, and the libc6 was upgraded.
> Since then I've this problem : randomly, after one-two day or after
> some hours, the file :
> 
> /lib/libpthread-0.10.so ( linked from /lib/libpthread.so.0 )
> 
> goes to ZERO byte, and so many services and basic commands (like ls)
> don't work anymore.

Use "fam" to track about libpthread-0.10.so file.  It may be caused by
your corrupt scripts, or even broken filesystem/kernel.  I think it's
not glibc problem.  If it's not your environment specific problem,
many users already got this kind of errors.  And nowadays we have
2.3.2.ds1.  Please test it.  I close this bug.

Regards,
-- gotom


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