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Merge tag 'pull-replay-fixes-080124-1' of https://gitlab.com/stsquad/qemu into staging

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Record/replay fixes for replay_kernel tests

  - add a 32 bit x86 replay test case
  - fix some typos
  - use modern snapshot setting for tests
  - update replay_dump for current ABI
  - remove stale replay variables
  - improve kdoc for ReplayState
  - introduce common error path for replay
  - always fully drain chardevs when in replay
  - catch unexpected waitio on playback
  - remove flaky tags from replay_kernel tests

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* tag 'pull-replay-fixes-080124-1' of https://gitlab.com/stsquad/qemu:
  tests/avocado: remove skips from replay_kernel
  chardev: force write all when recording replay logs
  replay: stop us hanging in rr_wait_io_event
  replay/replay-char: use report_sync_error
  replay: introduce a central report point for sync errors
  replay: make has_unread_data a bool
  replay: add proper kdoc for ReplayState
  replay: remove host_clock_last
  scripts/replay_dump: track total number of instructions
  scripts/replay-dump: update to latest format
  tests/avocado: modernise the drive args for replay_linux
  tests/avocado: fix typo in replay_linux
  tests/avocado: add a simple i386 replay kernel test

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell
2024-01-09 10:32:04 +00:00
parent b345ffad3e c2ef5ee89d
commit c1df5b4f16
11 changed files with 303 additions and 47 deletions
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12
chardev/char.c
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@ -171,6 +171,18 @@ int qemu_chr_write(Chardev *s, const uint8_t *buf, int len, bool write_all)
return res;
}
if (replay_mode == REPLAY_MODE_RECORD) {
/*
* When recording we don't want temporary conditions to
* perturb the result. By ensuring we write everything we can
* while recording we avoid playback being out of sync if it
* doesn't encounter the same temporary conditions (usually
* triggered by external programs not reading the chardev fast
* enough and pipes filling up).
*/
write_all = true;
}
res = qemu_chr_write_buffer(s, buf, len, &offset, write_all);
if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_RECORD) {