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| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-11-02 02:34:49 -0500 |
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| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-11-02 02:34:49 -0500 |
| commit | 0eb6411800011a0614fba95c416fae00ec9e0efd (patch) | |
| tree | c3fcd43883ae6365977eae04aab50ac460827bf6 /docs/03-architecture/04-uvm.md | |
| parent | 07bc59da291be0da1e4416d89310716b62696b9f (diff) | |
| download | open-iov-0eb6411800011a0614fba95c416fae00ec9e0efd.tar.gz open-iov-0eb6411800011a0614fba95c416fae00ec9e0efd.zip | |
vgsp: CONT-109 - FOUR FIXES: (1) WEDGE-RECOVER now rewinds pack_off/pack_sa + invalidates live_gen (r1377 deadlock: recovery reset pre_emit_off=0 but left pack_off at end -> split emitter can=0->packed=1 zero words -> MME-PRELUDE part gen=3 off=0 words=0/3083 forever, latch never re-set, MME never started); (2) PARK-RECOVER same rewinds; (3) gsp_phys_gr_fetch_miss_log promotes live_gen on GP_GET advance (readback-free promotion on timeout path; r1377 lost it FETCH-WIT timeout engine-fetched then pending_gen cleared); (4) gsp_phys_mme_fast_sample latches poisoned when sample's FIRST read is poison (r1378 MME-FAST begin esr=badf1201 ds=badf1201 grfifo=badf1201 -> esr badf1201->80000000 was missed; stale latch+live then ran macro 57 on wiped context sked mme_esr=80000004 mme_mac=0x39, FE parked pc=513 mac=0xf1 mmegen=1) - PROGRESS (not gate claim): r1378 MME-FAST launch macro-status=000393a2(mpc=930 mac=0x39 run=0) MACRO 57 EXECUTED TO ITS LAST INSTRUCTION; STORES GREW 9/909 -> 238/906 -> 305/903 (r1378); r1379 clean boot (0x mme_esr=80000004, no WEDGE-RECOVER) float-vertex stores 4/906 50/970; guest 5447 frames in 12.1s = 448.994 FPS (fence-level only not pixels); GATE1 BLACK both boots: r1378/r1379 xwd 1280x720 nonblack 0 max 0; r1379 staging page-note va=0x4500000 pa=0x1035f1000 has 2517 nonzero bytes but content is a DESCRIPTOR TABLE (28cd1000 00000001 68cd1000 ffff8a74) not pixels; every retire 0/903 - A/B bisect inconclusive (flipped live but no new beef launches, client moved to software release; needs insmod arming) - next: arm wedge bisect at insmod on fresh boot (sema_gl_mme_keep_mask=0 sema_gl_mme_nop_drop=0xffffffffffffffff before client launches): clean => executed macros' emitted methods (0x2390/0x34a4 CB writes) park FE; still poisons => win_drop non-call families (SURF-PRELUDE/SHADER-EXC 0x1528/SPH-REGION/SA-REARM); then output retirement must move off 0/N before sema_screen_blit (src=drawable GPA dst_off=0x200000 pitch 5120) can present - SESSION 153 r1378-r1379
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