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Hey,<br>
<a class="moz-txt-link-abbreviated" href="mailto:attila.mathe@orange-ftgroup.com">attila.mathe@orange-ftgroup.com</a> wrote:
<blockquote
cite="mid:29534_1252667382_4AAA2FF6_29534_19142_1_0EB1A3A7049F3D41A87CBED79D9A8C0701F903CB@PUEXCBM0.nanterre.francetelecom.fr"
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<div class="Section1">
<p class="MsoNormal">I’m having a linux box running with Centos 5.3
x86 (kernel
2.6.18-128.7.1.el5xen) which is freezing time to time and can’t
login neither trough console.<o:p></o:p></p>
<p class="MsoNormal">The only thing what I can do, to pass the
situation is to
power off/on the pc.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The pc is used only as a torrent server running
with
transmission 1.74. <o:p></o:p></p>
<p class="MsoNormal">There are days when 400GB data traffic goes
through the pc,
and there are days when after 50Mb freezes.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">What I checked:<o:p></o:p></p>
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style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">
</span></span><!--[endif]-->Network card doesn’t show any error
(netstat –in)<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent: -18pt;"><!--[if !supportLists]--><span
style="">-<span
style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">
</span></span><!--[endif]-->/var/log/messages (nothing serious is
mentioned)<o:p></o:p></p>
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style="">-<span
style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">
</span></span><!--[endif]-->Router logs (nothing)<o:p></o:p></p>
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</span></span><!--[endif]-->temperature (sensors show normal
parameters, which are
true measured manually also)<o:p></o:p></p>
<p class="MsoNormal" style="margin-left: 18pt;"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Do you have any idea how to troubleshoot the
situation, what
I’m missing ?</p>
</div>
</blockquote>
A way to get more information about the situation is to increase the
kernel log level and attach a serial console to the host.<br>
/usr/src/linux/Documentation/serial-console.txt helps. <br>
Next when you get the state you can request the system
"/usr/src/linux/Documentation/sysrq.txt", I mean you can print out the
active processes and the kernel log buffer. <br>
Afterwards send the logs right back to the list, maybe we can then help
further.<br>
<br>
<blockquote
cite="mid:29534_1252667382_4AAA2FF6_29534_19142_1_0EB1A3A7049F3D41A87CBED79D9A8C0701F903CB@PUEXCBM0.nanterre.francetelecom.fr"
type="cite">
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<p class="MsoNormal"><o:p></o:p></p>
<p class="MsoNormal">I’m thinking that there may be some hardware
issues, but
the thing was running fine for 1 month, and didn’t do much beside yum
update on it.</p>
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</blockquote>
If you think of a hardware issue, you should run memcheck. Afterwards
you should stress the remaining lower bandwidth subsystems of the host.<br>
<blockquote
cite="mid:29534_1252667382_4AAA2FF6_29534_19142_1_0EB1A3A7049F3D41A87CBED79D9A8C0701F903CB@PUEXCBM0.nanterre.francetelecom.fr"
type="cite">
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<p class="MsoNormal"><o:p></o:p></p>
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<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif";" lang="HU"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif";" lang="HU"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif";" lang="HU">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif";" lang="HU"><br>
Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Arial","sans-serif";" lang="HU">A</span></p>
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</blockquote>
Regards, <br>
Patrick<br>
<pre class="moz-signature" cols="72">--
Software Developer
Email: <a class="moz-txt-link-abbreviated" href="mailto:Patrick.Kirsch@bookandsmile.de">Patrick.Kirsch@bookandsmile.de</a>
Web: <a class="moz-txt-link-freetext" href="http://www.billigflieger.de">http://www.billigflieger.de</a> | <a class="moz-txt-link-freetext" href="http://www.bookandsmile.de">http://www.bookandsmile.de</a>
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