Date: Sat, 29 Mar 2025 20:46:23 +0000 From: "Steven Harms (High-Security Mail)" <sgharms@stevengharms.com> To: "freebsd-current@freebsd.org" <freebsd-current@FreeBSD.org> Subject: Kernel panic on HEAD (93cf4310 2025-03-28) Message-ID: <jKb-yMiaPLHe3Qt_mvBG62iPNb4sMeDLMo4EZwoFCl7S1OqvKqvggHJC9wdGXh4MumuuN7QRWnUw7CugGzjZbNWVt8T8xyarcyMV6LbYdrg=@stevengharms.com>
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[-- Attachment #1 --] Hey folks, I tried building current from source and when I boot, I get a panic after the final Autoloading module (pchtherm, in my case) loads. Comparing to the stable 14.2 kernel, the next step is for "Setting up harvesting," "Feeding entropy," and starting wpa_supplicant. To be clear, this commit is not the thing that broke things. In pursuit of getting more data, I'm trying to isolate two questions: - Why am I not getting any panic dump artifacts? - Did I built current from HEAD properly? In effort to get more data, I'm following: https://docs.freebsd.org/en/books/developers-handbook/kerneldebug/ - Confirm that /etc/rc.conf has dumpdev set to AUTO - Both /etc/fstab and swap info confirm that /dev/ada0p3 is configured for swap. It is also the only device. Therefore I expect dumped to write to that device - Yet despite the kernel panicking, there's nothing in that directory except file "minfree" which says "2048" in it. - I manually set dumpdir to "/var/crash" which has 750 permissions and try to boot the new kernel; panic; boot into stable kernel and...nothing in /var/crash except minfree Now, I'm still very new to building CURRENT, but I've been following: https://docs.freebsd.org/en/books/handbook/cutting-edge/#updating-src-quick-start # etcupdate extract (1) # etcupdate diff (2) # git pull -C /usr/src (1) check /usr/src/UPDATING (2) # cd /usr/src (3) # make -j4 buildworld (4) # make -j4 kernel (5)# shutdown -r now (6) And am after the shutdown -r now step: If my process for kernel and world build is correct, then I have found a panic. How can I help/debug? Thanks! Steven --- Public Key: 22BE39E2FA68D8BA8DC4B43A55A16D8CE2B036DE Messages from this account are considered the best-secured and most reliable. Send information regarding health, wealth, or requiring higher standards of security to this address. Sent with [Proton Mail](https://proton.me/mail/home) secure email. [-- Attachment #2 --] <div style="font-family: Arial, sans-serif; font-size: 14px;">Hey folks,</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">I tried building current from source and when I boot, I get a panic after the final Autoloading module (pchtherm, in my case) loads. Comparing to the stable 14.2 kernel, the next step is for "Setting up harvesting," "Feeding entropy," and starting wpa_supplicant.</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">To be clear, this commit is not the thing that broke things.</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">In pursuit of getting more data, I'm trying to isolate two questions:</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;"><ol data-editing-info="{"orderedStyleType":1,"unorderedStyleType":1}" style="margin-top: 0px; margin-bottom: 0px;" data-listchain="__List_Chain_221"><li style="list-style-type: "1. ";">Why am I not getting any panic dump artifacts?</li><li style="list-style-type: "2. ";">Did I built current from HEAD properly?</li></ol></div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">In effort to get more data, I'm following: <span><a target="_blank" rel="noreferrer nofollow noopener" href="https://docs.freebsd.org/en/books/developers-handbook/kerneldebug/">https://docs.freebsd.org/en/books/developers-handbook/kerneldebug/</a></span></div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div><ol data-editing-info="{"orderedStyleType":1,"unorderedStyleType":1}" style="margin-top: 0px; margin-bottom: 0px;" data-listchain="__List_Chain_222"><li style="list-style-type: "1. ";"><font face="Arial, sans-serif">Confirm that /etc/rc.conf has dumpdev set to AUTO</font></li><li style="list-style-type: "2. ";"><font face="Arial, sans-serif">Both /etc/fstab and swap info confirm that /dev/ada0p3 is configured for swap. It is also the only device. Therefore I expect dumped to write to that device</font></li><li style="list-style-type: "3. ";"><font face="Arial, sans-serif">Yet despite the kernel panicking, there's nothing in that directory except file "minfree" which says "2048" in it.</font></li><li style="list-style-type: "4. ";"><font face="Arial, sans-serif">I manually set dumpdir to "/var/crash" which has 750 permissions and try to boot the new kernel; panic; boot into stable kernel and...nothing in /var/crash except <code>minfree</code></font></li></ol></div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">Now, I'm still very new to building CURRENT, but I've been following:</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;"><span><a target="_blank" rel="noreferrer nofollow noopener" href="https://docs.freebsd.org/en/books/handbook/cutting-edge/#updating-src-quick-start">https://docs.freebsd.org/en/books/handbook/cutting-edge/#updating-src-quick-start</a></span><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;"><span># etcupdate extract (1)</span><div><span># etcupdate diff (2)</span></div><div><span># git pull -C /usr/src (1)</span></div><div><span>check /usr/src/UPDATING (2)</span></div><div><span># cd /usr/src (3)</span></div><div><span># make -j4 buildworld (4)</span></div><div><span># make -j4 kernel (5)</span></div><span># shutdown -r now (6)</span><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">And am after the <code>shutdown -r now</code> step:</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">If my process for kernel and world build is correct, then I have found a panic. How can I help/debug?</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">Thanks!</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">Steven</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div> <div class="protonmail_signature_block" style="font-family: Arial, sans-serif; font-size: 14px;"> <div class="protonmail_signature_block-user"> <div>---<br></div><div><br></div><div style="font-family: Arial, sans-serif; font-size: 14px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">Public Key: <a title="22BE39E2FA68D8BA8DC4B43A55A16D8CE2B036DE" href="https://22BE39E2FA68D8BA8DC4B43A55A16D8CE2B036DE"><span>22BE39E2FA68D8BA8DC4B43A55A16D8CE2B036DE</span></a><br></div><div style="font-style: normal; font-weight: normal; letter-spacing: normal; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; font-family: Arial, Helvetica, sans-serif; color: rgb(34, 34, 34);"><br></div><div>Messages from this account are considered the best-secured and most reliable. Send information regarding health, wealth, or requiring higher standards of security to this address.<br></div> </div> <div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div> <div class="protonmail_signature_block-proton"> Sent with <a target="_blank" href="https://proton.me/mail/home">Proton Mail</a> secure email. </div> </div>help
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