RHEL 8/9: unexplained stack corruption detected on ppc64le due to reading a paca_struct at the incorrect canary offset
Issue
- After upgrading between minor releases of RHEL 8 or 9 on ppc64le, stack corruption is detected, leading to kernel panics.
- Performing crash dump analysis may not reveal the explicit culprit.
Environment
- Red Hat Enterprise Linux 8 ppc64le
- Red Hat Enterprise Linux 9 ppc64le
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