Red Hat Bugzilla – Bug 1278415
kernel panic not syncing attempted to kill init
Last modified: 2015-11-12 11:21:57 EST
Description of problem:
New kernel (vmlinuz-4.2.5-201.fc22.x86_64) fails to boot - terminates with error message "Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Boot system
boot hangs with error message
removing this kernel and reinstalling had no effect - same error.
Please attach the output of dmesg from a successfully booting kernel, as well as a digitial picture of as much of the backtrace as you can see on the failed boot.
Created attachment 1090694 [details]
dmesg output from good boot
Created attachment 1090695 [details]
failed boot backtrace
This attachment was manually created, so it may contain typographical errors.
I do not have a camera or cell phone to take a digital picture of the screen, which I believe is what was requested.
(In reply to Don Swaner from comment #4)
> Created attachment 1090695 [details]
> failed boot backtrace
> This attachment was manually created, so it may contain typographical errors.
Thanks, that was helpful.
Looking at the versions you have, it seems like a patch added in 4.2.4 is causing your issue. Upstream is already aware of it, and the fix is queued for 4.2.6. Specifically it is:
Author: Werner Pawlitschko <email@example.com>
Date: Tue Oct 27 09:08:04 2015 +0900
x86/ioapic: Prevent NULL pointer dereference in setup_ioapic_dest()
Commit 4857c91f0d19 changed the way how irq affinity is setup in
setup_ioapic_dest() from using the core helper function to
unconditionally calling the irq_set_affinity() callback of the
underlying irq chip.
That results in a NULL pointer dereference for the rare case where the
underlying irq chip is lapic_chip which has no irq_set_affinity()
callback. lapic_chip is occasionally used for the timer interrupt (irq
The fix is simple: Check the availability of the callback instead of
calling it unconditionally.
Fixes: 4857c91f0d19 "x86/ioapic: Force affinity setting in setup_ioapic_dest()"
Signed-off-by: Thomas Gleixner <firstname.lastname@example.org>
4.2.6 is building right now.
kernel 4.2.6-200.fc22.x86_64 fixes bug
Thank you for testing.