Public bug reported: rms@rmsbox:/etc/default$ uname -a Linux rmsbox 7.0.0-22-generic #22-Ubuntu SMP PREEMPT_DYNAMIC Mon May 25 15:54:34 UTC 2026 x86_64 GNU/Linux
Running firefox (64-bit) 152.0.1 I attempted to print and save to PDF - routinely causes a panic from which kdump-tools does not capture crashfile for analysis. I also note that downloading from github http://www.kernel.org/git/?p=utils/kernel/kexec/kexec-tools.git yields equivalent crash under firefox. Using GoogleChrome apparently does not reproduce the panic. Very odd! After panic, machine stuck in BusyBox/initramfs. Power-on-reset reboots w/o problem, but no core file generated. Am really stuck. Acer laptop Acer Swift SFG14-73, 16Gbytes. Here's some information I have been able to discern: rms@rmsbox:/etc/default$ sudo systemctl status kdump-tools kdump-tools.service - Kernel crash dump capture service Loaded: loaded (/usr/lib/systemd/system/kdump-tools.service; enabled; preset: enabled) Active: active (exited) since Tue 2026-06-23 09:07:55 +08; 23min ago Invocation: dfac9ae9c4c8414b92ec722af2a558a1 Process: 1236 ExecStartPre=/usr/share/kdump-tools/kdump_mem_estimator (code=exited, status=0/SUCCESS) Process: 1314 ExecStart=/etc/init.d/kdump-tools start (code=exited, status=0/SUCCESS) Main PID: 1314 (code=exited, status=0/SUCCESS) Mem peak: 85.6M CPU: 203ms Jun 23 09:07:54 rmsbox systemd[1]: Starting kdump-tools.service - Kernel crash dump capture service... Jun 23 09:07:55 rmsbox kdump-tools[1314]: Starting kdump-tools: Jun 23 09:07:55 rmsbox kdump-tools[1667]: * Creating symlink /var/lib/kdump/vmlinuz Jun 23 09:07:55 rmsbox kdump-tools[1667]: * Creating symlink /var/lib/kdump/initrd.img Jun 23 09:07:55 rmsbox kdump-tools[1667]: * loaded kdump kernel Jun 23 09:07:55 rmsbox systemd[1]: Finished kdump-tools.service - Kernel crash dump capture service. systemctl status kdump-tools sudo dmesg|grep -i panic ms@rmsbox:/etc/default$ sudo dmesg |grep -i panic [sudo: authenticate] Password: [ 0.441387] simple-framebuffer simple-framebuffer.0: [drm] Registered 1 planes with drm panic [ 4.037503] i915 0000:00:02.0: [drm] Registered 4 planes with drm panic rms@rmsbox:/etc/default$ kdump-config show DUMP_MODE: kdump USE_KDUMP: 1 KDUMP_COREDIR: /var/crash crashkernel addr: 0x /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinuz-7.0.0-22-generic kdump initrd: /var/lib/kdump/initrd.img: symbolic link to /var/lib/kdump/initrd.img-7.0.0-22-generic current state: ready to kdump crashkernel suggested size: 612M kexec command: /sbin/kexec -p -s --command-line="BOOT_IMAGE=/boot/vmlinuz-7.0.0-22-generic root=UUID=ec85134c-96bb-4a2e-b109-666de5cfc43c ro quiet splash reset_devices systemd.unit=kdump-tools-dump.service nr_cpus=1 irqpoll usbcore.nousb" --initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: kdump-tools 1:1.10.7ubuntu3 ProcVersionSignature: Ubuntu 7.0.0-22.22-generic 7.0.0 Uname: Linux 7.0.0-22-generic x86_64 ApportVersion: 2.34.0-0ubuntu2 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Tue Jun 23 09:19:50 2026 InstallationDate: Installed on 2024-09-19 (642 days ago) InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64 (20240827.1) SourcePackage: kdump-tools UpgradeStatus: Upgraded to resolute on 2026-05-15 (38 days ago) ** Affects: kdump-tools (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug resolute wayland-session -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2157936 Title: Ubuntu 26.04 LTS Kdump tools cannot save panic crash file for 7.0 kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kdump-tools/+bug/2157936/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
