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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Dear All<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> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I tried to enable Mellanox HCA card on RHEL4.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>By now the drivers of Mellanox for 2.6 kernel are not ready
yet, then I used the backport patch for 2.6.9 delivered by Woody in 4/16.<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> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I patched the kernel and re-compiled it with modulizing
Infiniband support, and everything is OK.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>But when I rebooted the machine with the new kernel, a
kernel panic error was encountered during initializing hardware.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Here is the error message of rebooting: “<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Starting udev:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Initializing hardware ... Storage, network, audio Kernel
Panic - not syncing driver/infiniband/hw/mthca/mthca_allocator.c: 46:
spin_is_locked on uninitialized spinlock: f70f7dac<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></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>If I disabled the option “Mellanox HCA support”
when configuring kernel, system can be rebooted successfully.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>But if the option is selected, the error above will occur.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>(The machine I used is a <st1:City w:st="on"><st1:place
w:st="on">Langley</st1:place></st1:City> server with two 2.4GHz Xeon CPUs. The
OS installed on it is RedHatEL4.)<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> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Does anyone happen to encounter such error? Or did I make any
mistake during the process?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Would you provide some comments/suggestion to me? It will be
appreciated very much.<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> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Lenber<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> </o:p></span></font></p>
<p class=MsoNormal><strong><b><font size=2 face="Comic Sans MS"><span
style='font-size:10.0pt;font-family:"Comic Sans MS"'>Sincerely</span></font></b></strong><o:p></o:p></p>
<p class=MsoNormal><strong><b><font size=2 face="Comic Sans MS"><span
style='font-size:10.0pt;font-family:"Comic Sans MS"'>Lenber</span></font></b></strong><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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