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* The reference is fs.md's per-file semantics, errors and limits in Typst, ↵Gabriel Schneider27 hours
| | | | | | with the settings table, and says what the pane ctl's Left, Right, Up and Down do Co-Authored-By: Claude Opus 5.5 <[email protected]>
* A 9P look keeps its leading blanks: an indented line, or blanks alone, is ↵Gabriel Schneider27 hours
| | | | | | | | | | | | | | | | looked for as written Every line written to look or exec went through Messages.next, which trimmed blanks from both ends. A look of ` indented` then found the first bare `indented`, and a diff's blank context line ` ` looked at nothing. A look's line is now its text: only its `\r` and newline go. lookAt keeps the blanks for the word search too; it expands `~` only for a look that starts with one, and the path, address and command readings trim for themselves as before. runSearch keeps a pattern's blanks, since a builtin's argument comes trimmed already. An exec line is trimmed as before. fs.md says so. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* The 9P monkey does not count a file watch's reload notice as a failed ↵Gabriel Schneider27 hours
| | | | | | | | | | | | | | write's msg Seed 144 flagged a refused addr write because a stamped `reloaded <file>` from the file watch arrived in the same window. The watch said the host had written a clean pane's file, which is the host's news, not the write's. The one-failure rule already left out the watch's deleted-on-disk and changed-on-disk notices; it now leaves out the `reloaded` ones too, for files and themes. Seed 144 reruns clean at 4000 steps. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* The 9P monkey's chunked read check allows a live file that changed between ↵Gabriel Schneider27 hours
| | | | | | | | | | | | | its two reads Seed 131 flagged a command pane's tag: the whole read said `running`, the chunked read on the same open said `exit 0`. A tag is live, not frozen at the open, and the command ended between the reads, so this was a false alarm that did not reproduce on replay. A mismatch now counts only when a third, whole read still differs from the chunks. Seeds 131, 133 and 134 at 3000 steps each run clean. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* A write of a multiple of 4096 bytes holds the partial line it ends with, as ↵Gabriel Schneider27 hours
| | | | | | | | | | | | | | | | | | | | | | | | | | | | one that fills its Twrite does: a burst through a mount no longer runs its cut lines as two commands selfmount's 1000-line burst reported 943 lines, on main too. The log ring was not losing records: a follower opened before the burst heard exactly 943 and no `lost`, and the burst itself exited 1 with `err 1 exec: wrong #args in control message "Msg"`. `seq ... > exec` through the mount arrives as stdio's 4096-byte writes, each shorter than a Twrite. The rule that such a write is whole ran each one's cut last line at once, so both halves of the line ran as commands (hence `exit 127` records). At 12288 bytes the cut left a bare `Msg`, which was refused and failed the write and the rest of the burst. A write of a multiple of 4096 bytes is where a writer's buffer (stdio, a page cache) filled, so it may go on: its unended tail now waits for the next write or the close, like one that fills its Twrite. `printf Save > exec` stays whole at once. fs.md says so, the 9P fuzzer's model of served lines follows it, and a unit test cuts a `Msg` at 4096 bytes. A follower does not lose records silently: a ring that outruns one already reads it `lost N` first (documented, tested). selfmount now follows the log from before the burst, so it checks every line heard once, in order, or a loss said, not a fresh open of a 64 KiB ring. It passed 3 in 3 and joins the gates with the new 9ns. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* The 9P monkey does not count a file watch's notice as a failed write's msgGabriel Schneider27 hours
| | | | | | | | | | | | Seed 121 flagged a refused write to pane 2's dirty file because a `msg 3 <file> deleted on disk (Save writes it again)` arrived in the same window. That notice was from an earlier host rm of pane 3's file, said whenever the watch noticed it. It did not reproduce on replay, since it depends on when the watch fires. The one-failure rule now leaves out the watch's deleted-on-disk and changed-on-disk notices. Any other msg with a failed write still fails the rule. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* The 9P monkey lets a failed write's op log a msg when another of its Twrites ↵Gabriel Schneider27 hours
| | | | | | | | succeeded A ctl line cut across Twrites runs a piece a Twrite: in seed 109, "Save Pl" ran Save and said so, and the next piece, "acem", was refused. one_failure_rule took the msg as the failed write's. It now flags a msg only when no Twrite of the op succeeded. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* The 9P monkey allows a look's misses to each Twrite that succeeded, not to ↵Gabriel Schneider27 hours
| | | | | | | | none when one failed A look line written a byte a Twrite is a look a byte, each its own write logging its own miss; when its last byte was a control character that one write failed, and the oracle dropped every miss allowance on the path, so seed 51 failed with 21 errs for 1 refused write. Allowances are now counted over the Twrites that succeeded (and an hwrite's only once it has). Co-Authored-By: Claude Opus 5.5 <[email protected]>
* The 9P monkey's one-failure rule is a write's: a refused open, create or ↵Gabriel Schneider27 hours
| | | | | | | | remove, or a write to pane/new, must log no err The coordinator's reading of fs.md, now documented (slnyzzps): only a write or truncation logs its reason; a refused open (pane/new's and an OTRUNC one included), create or remove is its Rerror alone, and so is a write to pane/new. The oracle allowed an err or none for those, and required one for a refused pane/new open. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* The 9P monkey counts the lines a write runs as the tree does: a short ↵Gabriel Schneider27 hours
| | | | | | | | write's unended tail is a line of its own Since round 24 (uwzuqzxp), a write to a lines file shorter than a Twrite holds is whole, as acme takes each write, so a look line written a byte a Twrite is as many looks as bytes, each missing with its own err. one_failure_rule still split the data on newlines whole, allowed one err, and failed the fixed smoke seed (20260929 step 607, size 20 6 written in bytes to look: 7 errs). served_lines models the tree's write (tree.zig) and has a self-check run at start. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* A 9P monkey drives random requests at a throwaway session and checks the ↵Gabriel Schneider27 hours
documented rules test/monkey9p.py starts pardes --detach with its own HOME, XDG dirs and runtime dir, speaks raw 9P (test/ninep.py) with a timeout on every reply and Tflush for held reads, and after each seeded operation checks that pardes is alive, the one-failure rule over a marker-delimited log window (with and without a follower), /index against /pane, and chunked against whole reads. Every run writes a replayable ops log; a failure is saved with its seed and step, shrunk by delta debugging over replays, and the run goes on in a fresh session. Teardown makes the fuzzer a subreaper and kills every process carrying the session's token. zig build monkey-9p -- --seed N --steps M | --replay F | --shrink F; a 150-step fixed-seed smoke run is part of fs-test. Co-Authored-By: Claude Opus 5.5 <[email protected]>