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Revert "replay: stop us hanging in rr_wait_io_event"

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This reverts commit 1f881ea4a4.

That commit causes reverse_debugging.py test failures, and does
not seem to solve the root cause of the problem x86-64 still
hangs in record/replay tests.

The problem with short-cutting the iowait that was taken during
record phase is that related events will not get consumed at the
same points (e.g., reading the clock).

A hang with zero icount always seems to be a symptom of an earlier
problem that has caused the recording to become out of synch with
the execution and consumption of events by replay.

Acked-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20240813050638.446172-6-npiggin@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240813202329.1237572-14-alex.bennee@linaro.org>
This commit is contained in:
Nicholas Piggin 2024-08-13 21:23:21 +01:00 • committed by Alex Bennée
parent 9dbab31d9e
commit 94962ff00d
3 changed files with 1 additions and 27 deletions
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5
include/sysemu/replay.h
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@ -73,11 +73,6 @@ int replay_get_instructions(void);
/*! Updates instructions counter in replay mode. */
void replay_account_executed_instructions(void);
/**
* replay_can_wait: check if we should pause for wait-io
*/
bool replay_can_wait(void);
/* Processing clocks and other time sources */
/*! Save the specified clock */