BUG : PowerPC RCU: torture test failed with __stack_chk_fail

Michael Ellerman mpe at ellerman.id.au
Tue Apr 25 08:07:10 AEST 2023

Zhouyi Zhou <zhouzhouyi at gmail.com> writes:
> Dear PowerPC and RCU developers:
> During the RCU torture test on mainline (on the VM of Opensource Lab
> of Oregon State University), SRCU-P failed with __stack_chk_fail:
> by debugging, I see the r10 is assigned with r13 on c000000000226eb4,
> but if there is a context-switch before c000000000226edc, a false
> positive will be reported.
> [1]


CONFIG_CC_VERSION_TEXT="powerpc64le-linux-gnu-gcc-10 (Ubuntu 10.4.0-4ubuntu1~22.04) 10.4.0"

Do you see the same issue with a newer GCC?

There's 12.2.0 here:

Or if you can build in a Fedora 38 system or container, it has GCC 13.


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