Follow-up Comment #25, bug#64806 (group make):
The \Device\ConDrv thing is strange, not sure what to make of that. The one
process where the handle is shown as "Mutant" is correct, AFAIU. Maybe it
means the child processes actually released the mutex, but then why does the
parent keep waiting, and why the children don't exit?
Otherwise, this looks like all of the child processes wait for the mutex
handle, and no process releases it. What happens if you kill one of the
subprocesses -- do the rest continue being hung, or does the job resume
running?
Another idea is to build Make with additional printf's in osync_acquire and
osync_release to stderr, and see what the output tells us.
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