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| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-25 08:05:18 -0400 |
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| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-25 08:05:18 -0400 |
| commit | 6baa2135a7815776a114e8afe883e68883d3f31b (patch) | |
| tree | 1608d8eb25f128589ed2fcf82afe64171b2dee29 /wiki/open-iov.org/index.php?title=AMDGPU&action=info.html | |
| parent | e3c1cdc5ee049797fe40ae648d2a936c7384d517 (diff) | |
| download | open-iov-6baa2135a7815776a114e8afe883e68883d3f31b.tar.gz open-iov-6baa2135a7815776a114e8afe883e68883d3f31b.zip | |
wall-2 session-77: vkCreateDevice PASSES - r682 0x7E event validated live (registered slot 13, EVPOST rc=0) and the completion word found/driven: the main-thread wait reads a u32 at +0x80 of a 16 KB rw-s /dev/nvidiactl notification mapping (should-wait = word != 1); a host write of 1 via the guest RAM file (PA from pagemap, file offset PA-0x80000000 above 4G) flips the wait and vkCreateDevice returns success (VKDEVICE ok family=0) - reproduced 3x (r683 manual, r684 nudger, r684d probe+single-word). Tools: t79.py (wait-chain resolver), guest_words.sh, nudge.sh; README-session77.md records the recipe, the residual guest event-dispatch gap (records consumed, notification word not written), and the -4/gdb-attach cautions.
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