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<p class=MsoNormal><span style='color:#1F497D'>Tziporet, <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I have only seen this in OFED to
date. I’ve been unable to reproduce the problem under controlled
circumstances, and since it occurs very rarely, we only see it after the fact,
usually in our own test facility. <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>At this point, code inspection
seems to be the only way forward – I’ve been staring at this since
before New Years, thought I had found a hole where the problem could occur, but
then the problem occurred again last week, which is why I’m reaching out
to ewg. I’m hoping that someone who knows this module better than I could
suggest a scenario that might be triggering the problem.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'> Tziporet Koren
[mailto:tziporet@dev.mellanox.co.il] <br>
<b>Sent:</b> Sunday, May 02, 2010 4:05 PM<br>
<b>To:</b> Mike Heinz<br>
<b>Cc:</b> ewg@openfabrics.org<br>
<b>Subject:</b> Re: [ewg] Hang in ib_mad when unergistering.<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>On 4/30/2010 4:04 PM, Mike Heinz wrote: <o:p></o:p></p>
<p class=MsoNormal>Using OFED 1.5.0 and 1.5.1 we’ve been seeing nodes
occasionally hang when a process tries to disconnect from the umad interface.
Can anyone suggest what might be causing this?<o:p></o:p></p>
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font-family:"Times New Roman","serif"'><br>
Does this happened in OFED only or also in mainline kernel?<br>
If it's happaned in the kernel too I suggest you send this mail to the
linx-rdma mailing list<br>
<br>
Tziporet<o:p></o:p></span></p>
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