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kernel-debuginfo packages

kernel-debuginfo packages

2005-07-20       - By Jayaram Subramani

 Back
Reply:     1     2  

Hi:

- I could build the kernel-debuginfo-2.4.21-20.EL.i686.rpm package from
the source RPM kernel-2.4.21-20.EL.src.rpm using rpmbuild.

- Installed the newly built kernel-2.4.21-20.EL.i686.rpm and
kernel-debuginfo-2.4.21-20.EL.i686.rpm packages on a test machine.  

- Took a test dump, and could analyze the "vmcore" file and the live
system. No issues.

The link
http://people.redhat.com/anderson/crash_whitepaper/index.html#toc was
very useful for getting started on analyzing dumps.

So far so good.  

Now when I run "crash /tmp/vmlinux-2.4.21-20.ELsmp vmcore", where vmcore
and /tmp/vmlinux-2.421-20.ELsmp are copied from a different test machine
running Red Hat shipped 2.4.21-20.ELsmp kernel, "crash" utility returns
the following error:
-- ---- ---- ---- ---
crash: /usr/lib/debug/boot/vmlinux-2.4.21-20.ELsmp.debug: CRC does not
match
crash: /tmp/vmlinux-2.4.21-20.ELsmp: no debugging data available
-- ---- ---- ---- ---

What could be the difference between Red Hat shipped version of the
kernel and the kernel built from the sources, given (of course) that the
kernel version and the architecture (i686) are same.  

I appreciate any clarification/advice.

Regards,
Jayaram.


__ ____ ____ ____ ____ ____ ____

From: taroon-list-bounces@(protected)
[mailto:taroon-list-bounces@(protected)] On Behalf Of Jayaram Subramani
Sent: Tuesday, July 19, 2005 12:37 PM
To: taroon-list@(protected)
Subject: kernel-debuginfo packages

Hi:

I am trying to analyze a "vmcore" generated (by diskdump) on a machine
running RHEL v3 U3 using crash utility.

I looked for RHEL v3.0 U3 kernel-debuginfo package
(kernel-debuginfo-2.4.21-20.EL.i386.rpm) in Red Hat Network.  The
package search for "kernel-debuginfo" yields only link to
kernel-debuginfo-2.4.21-4.0.1.EL.i386.rpm.  I don't see it in RHEL3 U3
CDs(1-4) as well.  Any pointers?

Thanks in advance,

Regards,
Jayaram.


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<div class=Section1>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi: <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>- I could build the <b style='mso-bidi
-font-weight:
normal'><span style='font-weight:bold;mso-bidi-font-weight:normal'>kernel
-debuginfo-2.4.21-20.EL.i686.rpm</span></b>
package from the source RPM <b style='mso-bidi-font-weight:normal'><span
style='font-weight:bold;mso-bidi-font-weight:normal'>kernel-2.4.21-20.EL.src.rpm
</span></b>using rpmbuild.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>- Installed the newly built kernel-2.4.21
-20.EL.i686.rpm
and kernel-debuginfo-2.4.21-20.EL.i686.rpm packages on a test machine.<span
style='mso-spacerun:yes'>&nbsp; </span><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>- Took a test dump, and could analyze the
&#8220;vmcore&#8221;
file and the live system. No issues.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The link <a
href="http://people.redhat.com/anderson/crash_whitepaper/index.html#toc">http:/
/people.redhat.com/anderson/crash_whitepaper/index.html#toc</a>
was very useful for getting started on analyzing dumps. <o:p></o:p></span><
/font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><span class=GramE><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>So far so good.</span><
/font></span><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> <span style='mso-spacerun:yes'>&nbsp;</span><o:p></o:p></span><
/font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Now when I run &#8220;crash /tmp/vmlinux-2
.4.21-20.ELsmp
vmcore&#8221;, where vmcore and /tmp/vmlinux-2.421-20.ELsmp are copied from a
different test machine running Red Hat shipped 2.4.21-20.ELsmp kernel, &#8220
;crash&#8221;
utility returns the following error:<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>-- ---- ---- ---- ---<o:p></o:p></span><
/font></p>

<p class=MsoNormal><span class=GramE><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>crash</span></font></span
><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>: /usr/lib/debug/boot/vmlinux-2.4.21-20.ELsmp.debug: CRC does not
match<o:p></o:p></span></font></p>

<p class=MsoNormal><span class=GramE><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>crash</span></font></span
><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>: /tmp/vmlinux-2.4.21-20.ELsmp: no debugging data available<o:p></o
:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>-- ---- ---- ---- ---<o:p></o:p></span><
/font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>What could be the difference between Red
Hat
shipped version of the kernel and the kernel built from the sources, given (of
course) that the kernel version and the architecture (i686) are same. <span
style='mso-spacerun:yes'>&nbsp;</span><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I appreciate any clarification/advice. <o
:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Regards,<o:p></o:p></span></font></p>

<p class=MsoNormal><span class=GramE><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Jayaram.</span></font><
/span><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<div>

<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>

<hr size=2 width="100%" align=center tabindex=-1>

</span></font></div>

<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> taroon-list
-bounces@(protected)
[mailto:taroon-list-bounces@(protected)] <b><span style='font-weight:bold'>On
Behalf Of </span></b>Jayaram Subramani<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, July 19, 2005 12:37
PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on"
>taroon-list@(protected)</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> kernel-debuginfo packages
</span></font><o:p></o:p></p>

</div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi:<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am trying to analyze a &#8220;vmcore&#8221; generated (by
diskdump) on a machine running RHEL v3 U3 using crash utility. <o:p></o:p><
/span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I looked for RHEL v3.0 U3 kernel-debuginfo package
(kernel-debuginfo-2.4.21-20.EL.i386.rpm) in Red Hat Network.<span
style='mso-spacerun:yes'>&nbsp; </span>The package search for &#8220;kernel
-debuginfo&#8221;
yields only link to </span></font><font color="#333333"><span style='color:
#333333'>kernel-debuginfo-2.4.21-4.0.1.EL.i386.rpm.<span
style='mso-spacerun:yes'>&nbsp; </span>I don&#8217;t see it in RHEL3 U3
CDs(1-4) as well.<span style='mso-spacerun:yes'>&nbsp; </span>Any pointers?<o:p
></o:p></span></font></p>

<p class=MsoNormal><font size=3 color="#333333" face="Trebuchet MS"><span
style='font-size:12.0pt;font-family:"Trebuchet MS";color:#333333'><o:p>&nbsp;<
/o:p></span></font></p>

<p class=MsoNormal><font size=3 color="#333333" face="Times New Roman"><span
style='font-size:12.0pt;color:#333333'>Thanks in advance,<o:p></o:p></span><
/font></p>

<p class=MsoNormal><font size=3 color="#333333" face="Trebuchet MS"><span
style='font-size:12.0pt;font-family:"Trebuchet MS";color:#333333'><o:p>&nbsp;<
/o:p></span></font></p>

<p class=MsoNormal><font size=3 color="#333333" face="Times New Roman"><span
style='font-size:12.0pt;color:#333333'>Regards,<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=3 color="#333333" face="Times New Roman"><span
style='font-size:12.0pt;color:#333333'>Jayaram.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=3 color="#333333" face="Trebuchet MS"><span
style='font-size:12.0pt;font-family:"Trebuchet MS";color:#333333'><o:p>&nbsp;<
/o:p></span></font></p>

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