# \[Bug 213837\] "Kernel panic - not syncing: corrupted stack end detected inside scheduler" at building via distcc on a G5

- From: \<hidden\>
- Date: 2021-09-24 22:17:34 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2021/09/9524510
- Thread: https://ratatoskr.run/linuxppc-dev/2021/07/9523689/t.md

```text
https://bugzilla.kernel.org/show_bug.cgi?id=213837

--- Comment #10 from Erhard F. (erhard_f@mailbox.org) ---
Created attachment 298959
  --> https://bugzilla.kernel.org/attachment.cgi?id=298959&action=edit
kernel .config (5.15-rc2 + CONFIG_THREAD_SHIFT=15, PowerMac G5 11,2)

(In reply to mpe from comment #8)
> You could also try changing CONFIG_THREAD_SHIFT to 15, that might keep
> the system running a bit longer and give us some other clues.
The stack seems just large enough with CONFIG_THREAD_SHIFT=15 to not run into
this bug. I let the G5 build stuff via distcc in zram disk for a day without an
issue. With  CONFIG_THREAD_SHIFT=14 I hit the bug within minutes.

Just for completeness I'll upload the System.map and kernel .config with
CONFIG_THREAD_SHIFT=15.

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