Debian Bug report logs - #43549
libc6: system() call zombies process while using threads

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Derrik Pates <dpates@patriot.dsdk12.net>

To: submit@bugs.debian.org

Subject: libc6: system() call zombies process while using threads

Date: Thu, 26 Aug 1999 10:15:49 -0600

Package: libc6
Version: 2.1.2-0pre10
Severity: important

While doing some xmms development, I updated my libc only to discover that
when xmms tries to call unzip via the system() call, it causes the calling
process to immediately go to state Z (zombie) and the call never goes
through. Pressing Ctrl-C in the terminal window that the program is
running in will cause it to continue without completing the system() call.
However, sending the thread PID or the main app PID a SIGINT does not have
th same effect. (The system() call in question occurs in a thread. I tried
a system() call in a sample program that just did a system() and the
problem didn't seem to occur, so it would appear system() is doing
something non-threadsafe.)

-- System Information
Debian Release: potato
Kernel Version: Linux patriot 2.2.11 #11 SMP Wed Aug 11 22:41:19 MDT 1999 i686 unknown

Versions of the packages libc6 depends on:
ii  ldso            1.9.11-2       The Linux dynamic linker, library and utilit

--- Begin /etc/init.d/devpts.sh (modified conffile)
Config file not present or no permissions for access

--- End /etc/init.d/devpts.sh

Message #10 received at 43549@bugs.debian.org (full text, mbox, reply):

From: Joel Klecker <jk@espy.org>

To: Derrik Pates <dpates@patriot.dsdk12.net>, 43549@bugs.debian.org

Subject: Re: Bug#43549: libc6: system() call zombies process while using threads

Date: Fri, 17 Sep 1999 12:25:14 -0700

At 10:15 -0600 1999-08-26, Derrik Pates wrote:
>While doing some xmms development, I updated my libc only to discover that
>when xmms tries to call unzip via the system() call, it causes the calling
>process to immediately go to state Z (zombie) and the call never goes
>through. Pressing Ctrl-C in the terminal window that the program is
>running in will cause it to continue without completing the system() call.
>However, sending the thread PID or the main app PID a SIGINT does not have
>th same effect. (The system() call in question occurs in a thread. I tried
>a system() call in a sample program that just did a system() and the
>problem didn't seem to occur, so it would appear system() is doing
>something non-threadsafe.)

Hi,

Can you tell me if this problem still exists in 2.1.2-1? I believe it 
should have been fixed in 2.1.2 final.
-- 
Joel Klecker (aka Espy)                    Debian GNU/Linux Developer
<URL:mailto:jk@espy.org>                 <URL:mailto:espy@debian.org>
<URL:http://web.espy.org/>               <URL:http://www.debian.org/>

Message #15 received at 43549@bugs.debian.org (full text, mbox, reply):

From: Derrik Pates <dpates@patriot.dsdk12.net>

To: Joel Klecker <jk@espy.org>

Cc: 43549@bugs.debian.org

Subject: Re: Bug#43549: libc6: system() call zombies process while using threads

Date: Fri, 17 Sep 1999 14:24:01 -0600 (MDT)

On Fri, 17 Sep 1999, Joel Klecker wrote:

> Hi,
> 
> Can you tell me if this problem still exists in 2.1.2-1? I believe it 
> should have been fixed in 2.1.2 final.

I will test this afternoon to see if it's still an issue.

Derrik Pates
dpates@dsdk12.net

Message #20 received at 43549@bugs.debian.org (full text, mbox, reply):

From: Derrik Pates <dpates@patriot.dsdk12.net>

To: Joel Klecker <jk@espy.org>

Cc: 43549@bugs.debian.org

Subject: Re: Bug#43549: libc6: system() call zombies process while using threads

Date: Mon, 20 Sep 1999 14:26:28 -0600 (MDT)

On Fri, 17 Sep 1999, Joel Klecker wrote:

> Hi,
> 
> Can you tell me if this problem still exists in 2.1.2-1? I believe it 
> should have been fixed in 2.1.2 final.

I tried it again over the weekend, and it seems to be fixed as of the
libc6 2.1.2-1 package. Thanks for getting that one fixed.

Derrik Pates
dpates@dsdk12.net

Message #25 received at 43549-done@bugs.debian.org (full text, mbox, reply):

From: Joel Klecker <jk@espy.org>

To: 43549-done@bugs.debian.org

Subject: Bonk!

Date: Fri, 22 Oct 1999 00:26:28 -0700

Submitter confirmed that this bug is fixed.
-- 
Joel Klecker (aka Espy)       <URL:mailto:espy@debian.org>
Debian Package Maintainer for the GNU C Library.

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