Public bug reported: == Comment: #0 - Balamuruhan S <[email protected]> - 2018-03-29 01:36:52 == ---Problem Description--- Guest fails to boot with Call Trace by using "console=ttyS0,115200" in kernel param
Using latest kernel suggested by Bug 166023 in Host and Guest Contact Information = Balamuruhan S / [email protected] ---uname output--- # uname -a Linux ltc-boston17 4.15.0-12-generic #13 SMP Tue Mar 27 08:20:19 CDT 2018 ppc64le ppc64le ppc64le GNU/Linux Machine Type = Boston ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1. Have a healthy guest booted with latest kernel 2. Boot the guest and enter grub menu to edit kernel param 2. append "console=ttyS0,115200" to kernel param and try to boot 3. Guest fails to boot and goes to shutoff state with Call Trace Call Trace: [ 9.184631] random: crng init done [ 9.330927] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000100 [ 9.330927] [ 9.332928] CPU: 25 PID: 1 Comm: init Not tainted 4.15.0-12-generic #13 [ 9.334375] Call Trace: [ 9.335077] [c0000007fd10bc30] [c000000000ce991c] dump_stack+0xb0/0xf4 (unreliable) [ 9.336334] [c0000007fd10bc70] [c00000000010b4a0] panic+0x148/0x328 [ 9.337339] [c0000007fd10bd10] [c000000000112888] do_exit+0xc78/0xc80 [ 9.338359] [c0000007fd10bdd0] [c000000000112960] do_group_exit+0x60/0x100 [ 9.339216] [c0000007fd10be10] [c000000000112a24] SyS_exit_group+0x24/0x30 [ 9.340113] [c0000007fd10be30] [c00000000000b184] system_call+0x58/0x6c Oops output: no System Dump Info: The system is not configured to capture a system dump. *Additional Instructions for Balamuruhan S / [email protected]: -Post a private note with access information to the machine that the bug is occuring on. -Attach sysctl -a output output to the bug. == Comment: #7 - Balamuruhan S <[email protected]> - 2018-04-13 04:28:22 == I have hit it while booting already installed guest from qcow2 and edited its commandline from grub menu, so I have attached the full boot log. ** Affects: linux (Ubuntu) Importance: Undecided Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) Status: New ** Tags: architecture-ppc64le bugnameltc-166200 severity-high targetmilestone-inin--- ** Tags added: architecture-ppc64le bugnameltc-166200 severity-high targetmilestone-inin--- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1764377 Title: [Ubuntu 18.04] Guest fails to boot with "console=ttyS0,115200" included in kernel param To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1764377/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
