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re: WaitMultiple read confirmed on a live capture; XTimer is a third type

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23 wait frames, 30 objects, nothing unresolved -- the second deref turns every
former miss into a resolved object, as predicted. XEvent 20 / XSemaphore 9 /
XTimer 1; every WaitMultiple thread waits on a pair, and 78/79/80 and 64/65 are
worker groups sharing a handle.

%ebp does not survive as the count -- WaitMultiple reuses it at 8fc158 -- so the
array is bounded by reading until an entry stops resolving instead.

The frozen capture is still not taken: screen_id reads 'flight' at the second
capture and out to ~470s, so the mission never black-screened. The diff in the
data file is two healthy captures and is recorded as such.
This commit is contained in:
Sylpheed RE agent
2026-08-25 08:34:46 +00:00
parent 3f23ceb8e7
commit da562cabfd
3 changed files with 126 additions and 7 deletions
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docs/re/data/waitobj-s02.txt Normal file
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=== healthy: 23 wait frames ===
T106 Wait n=1 xe::kernel::XEvent
T105 Wait n=1 xe::kernel::XEvent
T104 Wait n=1 xe::kernel::XEvent
T97 Wait n=1 xe::kernel::XEvent
T96 Wait n=1 xe::kernel::XEvent
T80 WaitMultiple n=2 xe::kernel::XEvent, xe::kernel::XSemaphore
T79 WaitMultiple n=2 xe::kernel::XEvent, xe::kernel::XSemaphore
T78 WaitMultiple n=2 xe::kernel::XEvent, xe::kernel::XSemaphore
T77 Wait n=1 xe::kernel::XEvent
T76 WaitMultiple n=2 xe::kernel::XEvent, xe::kernel::XTimer
T75 Wait n=1 xe::kernel::XSemaphore
T74 Wait n=1 xe::kernel::XSemaphore
T71 Wait n=1 xe::kernel::XEvent
T69 Wait n=1 xe::kernel::XSemaphore
T68 Wait n=1 xe::kernel::XEvent
T66 Wait n=1 xe::kernel::XEvent
T65 WaitMultiple n=2 xe::kernel::XEvent, xe::kernel::XSemaphore
T64 WaitMultiple n=2 xe::kernel::XEvent, xe::kernel::XSemaphore
T63 Wait n=1 xe::kernel::XSemaphore
T62 Wait n=1 xe::kernel::XEvent
T61 Wait n=1 xe::kernel::XEvent
T50 Wait n=1 xe::kernel::XEvent
T36 WaitMultiple n=2 xe::kernel::XEvent, xe::kernel::XEvent
--- objects waited on:
xe::kernel::XEvent 20
xe::kernel::XSemaphore 9
xe::kernel::XTimer 1
=== frozen: 20 wait frames ===
T106 Wait n=1 xe::kernel::XEvent
T104 Wait n=1 xe::kernel::XEvent
T97 Wait n=1 xe::kernel::XEvent
T96 Wait n=1 xe::kernel::XEvent
T80 WaitMultiple n=2 xe::kernel::XEvent, xe::kernel::XSemaphore
T79 WaitMultiple n=2 xe::kernel::XEvent, xe::kernel::XSemaphore
T78 WaitMultiple n=2 xe::kernel::XEvent, xe::kernel::XSemaphore
T77 Wait n=1 xe::kernel::XEvent
T76 WaitMultiple n=2 xe::kernel::XEvent, xe::kernel::XTimer
T75 Wait n=1 xe::kernel::XSemaphore
T74 Wait n=1 xe::kernel::XSemaphore
T71 Wait n=1 xe::kernel::XEvent
T66 Wait n=1 xe::kernel::XEvent
T65 WaitMultiple n=2 xe::kernel::XEvent, xe::kernel::XSemaphore
T64 WaitMultiple n=2 xe::kernel::XEvent, xe::kernel::XSemaphore
T63 Wait n=1 xe::kernel::XSemaphore
T62 Wait n=1 xe::kernel::XEvent
T61 Wait n=1 xe::kernel::XEvent
T50 Wait n=1 xe::kernel::XEvent
T36 WaitMultiple n=2 xe::kernel::XEvent, xe::kernel::XEvent
--- objects waited on:
xe::kernel::XEvent 18
xe::kernel::XSemaphore 8
xe::kernel::XTimer 1
=== healthy -> frozen ===
xe::kernel::XEvent 20 -> 18 CHANGED
xe::kernel::XSemaphore 9 -> 8 CHANGED
xe::kernel::XTimer 1 -> 1