Memtest86 ran 38 passes (109 hours) with zero errors, ruling out RAM.
Disable sched_ext scheduler to test whether kernel scheduler crashes stop.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Enable memtest86 in systemd-boot menu on both PN51 units to allow
extended memory testing. Update stability document with March crash
data from pstore/Loki — crashes now traced to sched_ext scheduler
kernel oops, suggesting possible memory corruption.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Known PN51 platform issue with deep C-states causing freezes.
Limit to C1 to prevent deeper sleep states.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Enable kernel panic on soft/hard lockups with auto-reboot after
10s, and rasdaemon for hardware error logging. Should give us
diagnostic data on the next freeze.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
pn02 continues to hard freeze with no log evidence. Blacklisting
the GPU driver to eliminate GPU/PSP firmware interactions as a
possible cause. Console output will be lost but the host is
managed over SSH.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add two ASUS PN51 hosts on VLAN 12 for stability testing.
pn01 at 10.69.12.60, pn02 at 10.69.12.61, both test-tier compute role.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
