<br><br><div class="gmail_quote">On Thu, Jul 23, 2009 at 6:33 AM, Kumar Gala <span dir="ltr"><<a href="mailto:galak@kernel.crashing.org">galak@kernel.crashing.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
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On Jul 22, 2009, at 11:32 AM, srikanth krishnakar wrote:<br>
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On Wed, Jul 22, 2009 at 9:14 PM, Kumar Gala <<a href="mailto:galak@kernel.crashing.org" target="_blank">galak@kernel.crashing.org</a>> wrote:<br>
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On Jul 22, 2009, at 10:38 AM, srikanth krishnakar wrote:<br>
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On Wed, Jul 22, 2009 at 8:52 PM, Kumar Gala <<a href="mailto:galak@kernel.crashing.org" target="_blank">galak@kernel.crashing.org</a>> wrote:<br>
I'm not seeing any BUG* in traps.c @ line 904.<br>
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On Jul 21, 2009, at 4:33 AM, srikanth krishnakar wrote:<br>
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The LTP test case msgctl10.c fails on linux-2.6.29.6 for PowerPC architecture (ppc440)<br>
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msgctl10 1 B------------[ cut here ]------------<br>
kernel BUG at arch/powerpc/kernel/traps.c:904!<br>
Oops: Exception in kernel mode, sig: 5 [#9]<br>
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I'm not seeing any BUG* in traps.c @ line 904. Do you have some other patches on top of 2.6.29.6?<br>
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- k<br>
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I have LTTng patches on top of linux-2.6.29.6.<br>
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Does it modify traps.c? Can you see what the code around line 904 looks like and post that.<br>
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- k<br>
896<br>
897 #if defined(CONFIG_XILINX_VIRTEX_5_FXT) && defined(CONFIG_PPC_FPU)<br>
898 if (reason & REASON_ILLEGAL) {<br>
899 if (excep_state < 1) {<br>
900 excep_state++;<br>
901 return;<br>
902 }<br>
903 /* should never get here */<br>
904 BUG();<br>
905 }<br>
906 #endif<br>
907<br>
908 /* Try to emulate it if we should. */<br>
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Are you sure this is coming from the LTTng patches? Which actual patch makes this change?<br><font color="#888888">
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- k<br>
</font></blockquote></div><div>Thanks kumar,<br></div><div><br></div><div>I've got the patch out which fixes the issues. But now.. seems there is some generic issue in PPC440 targets, I am observing that </div><div><strong><font color="#000000"><span style="background-color: #ffff33;">remap_file_pages01</span></font></strong> and <strong><span style="background-color: #ffff00;">remap_file_pages02 <span style="background-color: #ffffff;"> </span></span></strong><span style="background-color: #ffff00;"><span style="background-color: #ffffff;">test cases from LTP are failing since <strong>Linux-2.6.24</strong> kernel to <strong>Linux-2.6.30</strong>. If you can give some pointers that would be greatly appreciated ! Or if you have results for this on any PPC44x would be helpful.</span></span></div>
<div><span style="background-color: #ffff00;"><span style="background-color: #ffffff;"><br></span></span></div><div><span style="background-color: #ffff00;"><span style="background-color: #ffffff;">Arch : PowerPC<br></span></span></div>
<div><span style="background-color: #ffff00;"><span style="background-color: #ffffff;">Target : Xilinx PowerPC440 virtex5<br></span></span></div><div><span style="background-color: #ffff00;"><span style="background-color: #ffffff;"><br>
</span></span></div><div><span style="background-color: #ffff00;"><span style="background-color: #ffffff;">I've tried to test the cause for this but found that kernel throws error message of "segmentation fault".<br>
</span></span></div><div><span style="background-color: #ffff00;"><span style="background-color: #ffffff;"><br></span></span></div><div><span style="background-color: #ffff00;"><span style="background-color: #ffffff;">Thanks in Advance.<br>
</span></span></div><div><span style="background-color: #ffff00;"><span style="background-color: #ffffff;"><br></span></span></div><div><span style="background-color: #ffff00;"><span style="background-color: #ffffff;">-Srikant<br>
</span></span></div><div><span style="background-color: #ffff00;"><span style="background-color: #ffffff;"><br></span></span></div><br clear="all"><br>-- <br>"The Good You Do, The Best You GET"<br><br>Regards<br>
Srikanth Krishnakar<br>**********************<br>