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20040921 rpc.ldmd signal 11s

Art,

>Date: Fri, 17 Sep 2004 17:33:32 -0400 (EDT)
>From: "Arthur A. Person" <address@hidden>
>Organization: Penn State University
>To: Steve Emmerson <address@hidden>
>Subject: Re: 20040917 rpc.ldmd signal 11s 
> Keywords: 200408311254.i7VCsh8E018445

The above message contained the following:

> But it still doesn't dump core when I SEGV the child process.

According to the attached email from our System Administrator, it
looks like you'll have to jump through some hoops in order to get the
setuid-root rpc.ldmd program to dump core.

Alternatively, if you run the LDM system as root, then it might dump
core on its own.

I haven't been able to reproduce your problem on our Linux system that's
closest to yours.

Let me know how you want to handle this.

Regards,
Steve Emmerson
--- Begin Message --- 
Steve,

The good news is that the Linux kernel finally includes the setuid root
core file patches we had applied previously.  The bad news is that this
happened in the v2.4.23-pre2 kernel as of about September 2003.  Our
Fedora Core installations have it rolled-in and can be enabled;

  sysctl -w kernel.core_setuid_ok=1

 or

  echo 1 > /proc/sys/kernel/core_setuid_ok

More bad news is that RedHat Enterprise kernel installed on lead1 is
too old to support the change.  We can check to see if a kernel update
is available for lead1.

mike

On Sep 17,  3:44pm, Steve Emmerson wrote:
> Subject: suid root coredump enabled on emo (fwd)
> Mike,
>
> I found this for BSD systems.
>
> --Steve
>
> ------- Forwarded Message
>
> Date:    Tue, 01 Jul 2003 08:39:51 MDT
> To:      address@hidden
> From:    "Mike Schmidt" <address@hidden>
> Subject: suid root coredump enabled on emo
>
> emo# sysctl -w kern.sugid_coredump=1
>
> mike


On Sep 21,  9:49am, Steve Emmerson wrote:
> Subject: getting setuid-root program to dump core on Linux
> Mike,
>
> What's the magic needed to get a setuid-root program to dump core on
> Linux, specifically
>
>     RHEL 3 U3 kernel 2.4.21-15.0.4.ELsmp
>
> (this is almost identical to Lead1, which is 2.4.21-15.0.3.ELsmp).

--- End Message ---