vgsp: CONT-104 - gsp_phys_gr_fe_idle() (grfifo 0x400504==0x00000001 witness) + mme_hold_calls also holds real CALL runs while front-end not settled (MME-CALL-HOLD log gains '[FE-not-idle (CONT-104)]'; prevents r1359 MME-ILLEGAL_OPCODE race - calls executing while previous prelude carrier's SA/IR writes still in flight) - 0x2390 IDENTIFIED + FIX VALIDATED: 0x2390 = NVC597_LOAD_CONSTANT_BUFFER(0); live trap reproduces exactly offline on real captured macro (./mme_ref slot57_gold.bin 1 5 -> EMIT mthd=0x2390 data=0x00000005 + mthd=0x34a4 data=0x00000004); root cause: winning config dropped slot 0 (nop_drop=0x5) and slot 0 = SETUP_FIXED_CONST emits CB selector setup (0x2380<-0x7000, 0x2384/0x2388<-STATE 0xd18 parts, 0x238c<-arg*4); without it FE rejects first CB write class error 3 ERROR_INVALID_OPERATION and parks; r1358 (slot 0 kept + seed): MME-FAST end events=1 NO class error NO 0x2390 - MME RAN and CB writes LANDED; wall moved to CB mapping: r1358 MMU Fault SCC @ 0x0_019d4000 FAULT_PTE VIRT_READ (seeded CB +0x4000, seed xlat mapped one page only); r1359 (seed to surface alias MME-SEED scratch 0x18 <- 0x000a3000 xlat=1): FIRST STORES EVER 'output retirement wait: 2/901 pages changed after 221 ms (settled)'; new wall r1361: calls-kept launch idle FE full prelude gen=3 words=3083 -> ILLEGAL_OPCODE ESR 0x404490=0x80000004, MME PC=0x364 / macro 0x39 = illegal instruction INSIDE macro 57 (golden MME runtime state wall); GATE1 black - next: seed golden MME runtime state slot 57 reads STATE 0xD26-0xD2A (gf100mme.h bug2548370: PAGE_ALLOCATION_COUNT/ZERO_VIEW_OFFSET/LAST_UPDATED_CB_SELECTOR_B_C/LOAD_CONSTANT_BUFFER_OFFSET/LAST_UPDATED_LOAD_OFFSET; methods 0x3498/0x349c/0x34a0/0x34a4/0x34a8) ahead of window, or prove/repair IR image at instruction 0x364 (split packed drain; single-block pack needs ~2960 words > 2048 cap) - SESSION 153 r1358-r1361

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