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<body lang="EN-US" link="#0563C1" vlink="#954F72">Hi Binny,<br><br>I don't think it's related to 2019.78<br><br>Usually D state means something else is wrong on the system, bad NFS mounts or IO devices. Can you strace the stuck processes?<br><br>Cheers,<br>Matt<br><br><div class="gmail_quote">On 9 October 2019 10:53:56 am GMT+07:00, "Jeshan, Binny" <Binny.Jeshan@netscout.com> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
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<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif">Dear all in the mailing list,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif">We are seeing a problem with 2018.76 version of the dropbear SSH server which exhibits the following:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif">The processes go into uninterruptible “D” state and lies there, couldn’t be killed nor shutdown.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif"><img width="559" height="220" style="width:5.8263in;height:2.2916in" id="Picture_x0020_8" src="cid:image001.jpg@01D57E82.261498F0"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif">The stuck processes in the bad state show the below behavior of two open pipes that are not closed.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif"><img width="601" height="657" style="width:6.2638in;height:6.8472in" id="Picture_x0020_3" src="cid:image002.jpg@01D57E82.261498F0"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif">The last process with PID 394 seems to work fine, and has no open IPCs.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif"><o:p> </o:p></span></p>
<pre><span style="font-family:"Gisha",sans-serif">When I look at the release notes of 2019.78, I see this: “</span><span style="color:black">2019.78 - 27 March 2019<o:p></o:p></span></pre>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">- Fix dbclient regression in 2019.77. After exiting the terminal would be left<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black"> in a bad state. Reported by Ryan Woodsmall<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif">“<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif">Is the problem that we see is same as you fixed? Please suggest. Your feedback and ideas will help.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Gisha",sans-serif">Binny<o:p></o:p></span></p>
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