https://bugzilla.kernel.org/show_bug.cgi?id=206669
Bug ID: 206669
Summary: Little-endian kernel crashing on POWER8 on heavy
big-endian PowerKVM load
Product: Platform Specific/Hardware
Version: 2.5
Kernel Version: 5.4.x
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: PPC-64
Assignee: platform_ppc...@kernel-bugs.osdl.org
Reporter: glaub...@physik.fu-berlin.de
CC: mator...@gmail.com
Regression: No
Created attachment 287605
--> https://bugzilla.kernel.org/attachment.cgi?id=287605&action=edit
Backtrace of host system crashing with little-endian kernel
We have an IBM POWER server (8247-42L) running Linux kernel 5.4.13 on Debian
unstable hosting a big-endian ppc64 virtual machine running the same kernel in
big-endian mode.
When building OpenJDK-11 on the big-endian VM, the testsuite crashes the *host*
system which is little-endian with the following kernel backtrace. The problem
reproduces both with kernel 4.19.98 as well as 5.4.13, both guest and host
running 5.4.x.
Backtrace attached.
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