Debugging insane GPU heisenbugs at Waymo: an AMA
mike64_t · x · 2026-10-24
An engineer opened an AMA about debugging nondeterministic GPU heisenbugs at Waymo. His favorite example: the tmem load to MMA silicon path would occasionally drop a high bit a small percentage of the time — the kind of random hardware fault that is notoriously hard to track down.
Related event: Waymo engineer hosts AMA on debugging GPU Heisenbugs(3 posts)→
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