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And yes I was able to login remotely on Friday. I don't think I tried over the weekend.</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> ace <ace-bounces@jlab.org> on behalf of Brian Bevins via ace <ace@jlab.org><br>
<b>Sent:</b> Monday, February 12, 2024 4:28 PM<br>
<b>To:</b> Adam Carpenter <adamc@jlab.org>; ace@jlab.org <ace@jlab.org><br>
<b>Subject:</b> Re: [ace] Weird workstation behavior</font>
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Adam,</div>
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Thanks for looking into this. Does the fact that OOM killed Xorg indicate that Xorg was the memory hog? Or at least the apparent memory hog? Presumably some client process(es) were forcing it to leak. The segfault and coredump don't surprise me if the processes
could no longer allocate memory for transient objects.</div>
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I didn't hit the power button. I did a soft reboot from the login screen, which in retrospect was dumb since I suspected the login screen itself. It did seem like the reboot happened too quickly, but uptime says that it last rebooted at ~14:44 and it worked
after that.</div>
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--Brian</div>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Adam Carpenter <adamc@jlab.org><br>
<b>Sent:</b> Monday, February 12, 2024 4:05 PM<br>
<b>To:</b> ace@jlab.org <ace@jlab.org>; Brian Bevins <bevins@jlab.org><br>
<b>Subject:</b> Re: Weird workstation behavior</font>
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Brian,</div>
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I see two main things going on with your workstation. The first is that your NX server licence expired Feb 8 at ~8pm. Anthony said that shouldn't matter, but I am mentioning it just in case it does. Were you able to login on Friday or over the weekend?<br>
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The second thing is that gdm was having some trouble and the out-of-memory killer was called at Feb 12, 2pm. It looks like there has been a slow memory leak building for a least a couple of weeks. All around the same time of 2:00pm today (+/- minutes) I see</div>
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<span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">Xorg got killed by OOM</span></li><li style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0); list-style-type:"- "">
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">tclsh8.6 had a segfault in libtclcdev1.7.6</span></div>
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<span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">emacs coredumped</span></li></ul>
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<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">It looks like things tried to recovery but I see a bunch of errors after this. All of your logins failed with a 'system
error' message. Then at 14:43 what looks like the start of a boot sequence. I guess that was you mashing the power button? I think this is a plain old system crash and not something nefarious. Let us know if it happens again.<br>
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Adam Carpenter<br>
Accelerator Operations Software Department<br>
Thomas Jefferson National Accelerator Facility</div>
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<div id="x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> ace <ace-bounces@jlab.org> on behalf of Brian Bevins via ace <ace@jlab.org><br>
<b>Sent:</b> Monday, February 12, 2024 3:10 PM<br>
<b>To:</b> ace@jlab.org <ace@jlab.org><br>
<b>Subject:</b> [ace] Weird workstation behavior</font>
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When I came onsite this afternoon my workstation was behaving strangely. It had apparently rebooted and was sitting at the session login prompt, but it wouldn't accept my password. Caps lock was off and I tried it 8 times.</div>
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Eventually I rebooted the workstation, when I went to do that I got a warning that user gdm was logged in. I don't usually get that when I restart. After the restart, it accepted my password on the first try.</div>
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Out of paranoia I changed my password. Everything's working fine now, but I wanted to mention it since it felt very much like a fake login screen.</div>
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--Brian</div>
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