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<div class="moz-cite-prefix"><font face="monospace">Followup with SW
related items.</font></div>
<div class="moz-cite-prefix"><font face="monospace"><br>
</font></div>
<div class="moz-cite-prefix"><font face="monospace">$ cat
/etc/os-release<br>
NAME="Pop!_OS"<br>
VERSION="22.04 LTS"<br>
ID=pop<br>
ID_LIKE="ubuntu debian"<br>
PRETTY_NAME="Pop!_OS 22.04 LTS"<br>
VERSION_ID="22.04"<br>
HOME_URL=<a class="moz-txt-link-rfc2396E" href="https://pop.system76.com">"https://pop.system76.com"</a><br>
SUPPORT_URL=<a class="moz-txt-link-rfc2396E" href="https://support.system76.com">"https://support.system76.com"</a><br>
BUG_REPORT_URL=<a class="moz-txt-link-rfc2396E" href="https://github.com/pop-os/pop/issues">"https://github.com/pop-os/pop/issues"</a><br>
PRIVACY_POLICY_URL=<a class="moz-txt-link-rfc2396E" href="https://system76.com/privacy">"https://system76.com/privacy"</a><br>
VERSION_CODENAME=jammy<br>
UBUNTU_CODENAME=jammy<br>
LOGO=distributor-logo-pop-os</font></div>
<div class="moz-cite-prefix"><br>
<font face="monospace">$ uname -a<br>
Linux pop-os 5.17.5-76051705-generic
#202204271406~1653440576~22.04~6277a18 SMP PREEMPT Wed May 25 01
x86_64 x86_64 x86_64 GNU/Linux<br>
</font></div>
<div class="moz-cite-prefix"><font face="monospace"><br>
</font></div>
<div class="moz-cite-prefix"><font face="monospace">Tytools from
<a class="moz-txt-link-freetext" href="https://github.com/Koromix/tytools">https://github.com/Koromix/tytools</a></font></div>
<div class="moz-cite-prefix"><font face="monospace">Teensyduino
from: <a class="moz-txt-link-freetext" href="https://www.pjrc.com/teensy/td_download.html">https://www.pjrc.com/teensy/td_download.html</a></font></div>
<div class="moz-cite-prefix"><font face="monospace">Arduino download
from: <a class="moz-txt-link-freetext" href="https://www.arduino.cc/en/software">https://www.arduino.cc/en/software</a> V1.8.19.</font></div>
<div class="moz-cite-prefix"><font face="monospace">Data on Teensy
4.1 microcontroller (Arm M7, NXP </font><font face="monospace"><font
face="monospace">IMXRT1060</font>)
<a class="moz-txt-link-freetext" href="https://www.pjrc.com/store/teensy41.html">https://www.pjrc.com/store/teensy41.html</a><br>
</font></div>
<div class="moz-cite-prefix"><font face="monospace">IMXRT1060
Processor Reference Manual
<a class="moz-txt-link-freetext" href="https://www.pjrc.com/teensy/IMXRT1060RM_rev3.pdf">https://www.pjrc.com/teensy/IMXRT1060RM_rev3.pdf</a></font></div>
<div class="moz-cite-prefix"><font face="monospace"><br>
</font></div>
<div class="moz-cite-prefix"><font face="monospace">Me, I am writing
code to make an electronic lead screw for my lathe. Motor
control works with NEMA-24 stepper motor and rotary encoder.
Working on the UI on a touch panel tft display. Or, I was,
until my laptop crashed...<br>
</font></div>
<div class="moz-cite-prefix"><font face="monospace"><br>
</font></div>
<div class="moz-cite-prefix"><font face="monospace"></font><br>
</div>
<div class="moz-cite-prefix">On 6/6/22 3:47 PM, Bruce Labitt wrote:<br>
</div>
<blockquote type="cite"
cite="mid:287d9413-44da-ccc5-99ae-be9e37787f42@myfairpoint.net">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<p><font face="monospace">Will try my best. It's tough to keep
your cool when your life, ie. your own computer is crapping
out. Much easier, when it is someone else's. Pity the
machine is not up at the moment. Been busy transferring my
life to an RPI4, which hasn't been as easy as it seems like it
should. Writing this on my RPI4-8GB with RaspiOS-64bit.<br>
</font></p>
<p><font face="monospace">Laptop in question, with the problem:
System76 Oryx6. 32GB RAM, 1TB SSD Samsung 970 EVO Plus<br>
</font></p>
<p><font face="monospace">HW Details:</font></p>
<p><font face="monospace">=================================================================================================================================<br>
</font></p>
<font face="monospace">Intel-10875H CPU, Intel HM470 chipset,
MX25L12872F flash chip running System76 Open Firmware BIOS, </font><br>
<font face="monospace">ITE IT5570E running<span> </span><a
href="https://github.com/system76/ec" style="text-decoration:
none; color: var(--links);" moz-do-not-send="true">System76 EC</a>,
NVIDIA GeForce RTX 2060, 15.6" 1920x1080@144Hz LCD, LCD panel:
Panda LM156LF1F (or equivalent)</font><br>
<font face="monospace">External video outputs: 1x HDMI, 1x Mini
DisplayPort 1.4, 1x DisplayPort over USB-C</font><br>
<font face="monospace">Memory</font><font face="monospace"> Up to
64GB (2x32GB) dual-channel DDR4 SO-DIMMs @ 3200 MHz -- 32 GB</font><br>
<p><font face="monospace">Networking:</font><font face="monospace">
Gigabit Ethernet,</font><font face="monospace">M.2 PCIe/CNVi
WiFi/Bluetooth,</font><font face="monospace"> Intel Wi-Fi 6
AX200/AX201</font><font face="monospace"><br>
</font></p>
<p><font face="monospace">Power</font><font face="monospace">:
180W (19.5V, 9.23A) DC-in port,</font><font face="monospace">
Barrel size: 5.5mm (outer), 2.5mm (inner),</font><font
face="monospace"> Included AC adapter: Chicony A17-180P4A,</font><font
face="monospace"> AC power cord type: IEC C5,</font><font
face="monospace"> 73Wh 3-cell battery</font><font
face="monospace"> <br>
</font></p>
<p><font face="monospace">Sound:</font><font face="monospace">
Internal speakers & microphone,</font><font
face="monospace"> Combined headphone & microphone 3.5mm
jack,</font><font face="monospace"> Combined microphone &
S/PDIF (optical) 3.5mm jack,</font><font face="monospace">
HDMI, Mini DisplayPort, USB-C DisplayPort audio</font><font
face="monospace"><br>
</font></p>
<p><font face="monospace">Storage:</font><font face="monospace">
1x M.2 (PCIe NVMe or SATA) - NVME 1 TB installed</font><font
face="monospace">, 1x M.2 (PCIe NVMe only) - empty,</font><font
face="monospace"> MicroSD card reader</font><font
face="monospace"><br>
</font></p>
<p><font face="monospace">USB:</font><font face="monospace"> 3x
USB 3.2 Gen 1 Type-A,</font><font face="monospace"> 1x USB
Type-C with Thunderbolt 3</font><font face="monospace"><br>
</font></p>
<p><font face="monospace">Dimensions:</font><font face="monospace">
15": 35.75cm x 23.8cm x 1.98cm, 1.99kg</font></p>
<p><font face="monospace">=== End HW details
==============================================================================================================<br>
</font></p>
<p><font face="monospace">Pop-OS-64 bit. 22.04. Fresh install
over existing Ubuntu 20.04 LTS.<br>
</font></p>
<p><font face="monospace">I need to reboot the computer to get the
kernel stuff. Will followup with uname -a.<br>
</font></p>
<p><font face="monospace">Problem occurs when using USB to program
Teensy 4.1 microcontroller. Active programs at time of crash
= Arduino IDE V 1.8.19, Teensyduino 1.56 (required to allow
Arduino to recognize and program Teensy microcontrollers), and
Tytools, 0.9.7, which is a tool to program and manage Teensy
processors. Prior to 26 May 2022, this all worked flawlessly.</font></p>
<p><font face="monospace">And, the above SW does work flawlessly
on the RPI4B, running RaspberryPiOS-64bit, but not on my
laptop. On my laptop I get system crashes.<br>
</font></p>
<p><font face="monospace">Only clues I have found are in syslog,
and dmesg, but they only show some normal USB transactions,
then the computer powering up again.<br>
</font></p>
<p><font face="monospace">Thanks Ben, for at least answering
(humoring?) me. Been an awful week with this crash. These
crashes are so bad, that there's practically nothing in the
logs. Last entry is using the USB port. And the power turns
off. This is a stab at it. Let me know if there's anything
else I need to add. Beats me what the crucial details are, if
I knew them, it would have been fixed by now. <br>
</font></p>
<p><font face="monospace">The title of the thread was really about
how to go about doing the debugging. The methodology. It's
improbable that anyone else would have experienced this
particular crash type.<br>
</font></p>
<p><br>
</p>
<div class="moz-cite-prefix">On 6/6/22 14:09, Ben Scott wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAE=no6FdGQMKVLTJAnzK+KM6Tu5wei1u-zCVdvmk2-S2QMGkMg@mail.gmail.com">
<pre class="moz-quote-pre" wrap="">On Sun, Jun 5, 2022 at 12:09 PM Bruce Labitt
<a class="moz-txt-link-rfc2396E" href="mailto:bruce.labitt@myfairpoint.net" moz-do-not-send="true"><bruce.labitt@myfairpoint.net></a> wrote:
</pre>
<blockquote type="cite">
<pre class="moz-quote-pre" wrap="">I am experiencing severe Linux crashes ...
</pre>
</blockquote>
<pre class="moz-quote-pre" wrap="">Long meandering messages with critical details hidden throughout and
others omitted entirely will reduce the likelihood that others will
give you help for free. (Or even when paid.)
In particular, specify what hardware you have, and the software you're
running, in one place. If it's a scavenger hunt just to find that
information you'll get a poor response. I didn't see any mention of
the model of machine, for example. List major components with model
or type (CPU model and speed, RAM size, type and size of storage,
model/type video controller, etc.). You mention distribution and
version, which is good, but also please provide kernel version. Also
include steps to reproduce (when it happens, when it doesn't),
commands you've tried, places you've looked for files, error messages
received, etc., etc.
I know you've been around long enough that you've seen plenty of bug
reports and knowledge base articles and the like. Follow their
example.
<a class="moz-txt-link-freetext" href="http://www.catb.org/~esr/faqs/smart-questions.html" moz-do-not-send="true">http://www.catb.org/~esr/faqs/smart-questions.html</a>
-- Ben
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</blockquote>
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