| Commit message (Collapse) | Author | Age |
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(tools-fix c8fb5377)
Dead-pid purge via in-band #nopid (zombie-aware probe), monotonic
(pid,starttime) client identity so trace-ring replays can never reset an
active client (fixes the m178 mid-run reset regression avenue), pre-capture
and post-capture stall watchdogs that re-assert pins and escalate loudly,
heartbeat threads for both tools, supervisor STALE 75s/GRACE 120s.
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stays
The m178 tool latching changes caused a reproducible pre-capture hang of the
third CUDA client after two green clients (r199: smiley #3; r200: multikernel
#3; both recovered by reverting tools only, r201). Prime suspect: semfix
per-client reset re-firing mid-run (same pid reset twice 2 min apart while the
client was active). Tools restored to the m177-proven state until the reset
logic is fixed with a monotonic per-pid guard.
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Kernel: authorship instrumentation + swrel gate for in-flight GR release VAs;
first-poll shortening + fast extended re-arm (params gr_retry_fast=1,
gr_first_poll_ms=2500); per-attempt win0 bank recompute + shadow recopy in the
outcome-retry loop; poll-break/deposit-readback diagnostics; C1-C10 sema
diagnostics (crel-entry, relx, opdef-clear, walk, pub-adv, hold-fallback,
busy-defer, CAND-OVERWRITE, inline recs); busy-defer hold instead of
software-release consume; counter fast path; QMD word 48/49 skip.
Tools: heartbeat thread, scanner-alive probe on reinstall, full periodic
re-assert, #nopid handling, per-client reset fix (debounce), dead-pid drop,
supervisor grace+threshold.
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(1) svc_session_flush keeps svc.direct_base (per-boot constant; the pin-free
targeted scanner's gate/input) and a new gsp_sema_service_guest_reset()
hook wipes boot-scoped discovery state on guest RM reload;
(2) counter-page derive now takes the first READABLE source (vaspaces ->
discovered -> targeted) instead of failing -EIO on a walked-but-garbage
page, with one-shot diagnostics;
(3) new m177c UVM ring-space directory discovery: content-verified
(push_va -> push_pa) samples from the GR content discovery and CE push
pairing feed a second discovered-directory slot (walks the 0x2xxxxxxx
family), consulted by svc_walk_discovered;
(4) GR channels now deliver withheld opdef sets at entry consume (normal
tail and the stale-skip path) instead of waiting for the 10 s sweep;
(5) host tools hardened: semfix_uvmt QMP reconnect + pid-generation dedupe
+ stale-sem eviction + post-success pin latch + heartbeats; pin_gr_stream
accept timeout + guest-scanner reinstall backoff + restart loop +
subprocess timeouts; new pin_supervisor.sh (heartbeat watchdog, capped
restarts) wired into start_vm_keep.sh.
Evidence: r194-r196 cycles; pool resolves src=trusted pin-free; ring dir
0x10801c000 found 4/4; row: 'rel-apply ... written' with tools up.
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