K 10
svn:author
V 3
ian
K 8
svn:date
V 27
2019-11-24T21:08:56.721226Z
K 7
svn:log
V 565
When doing ARM stack unwinding as part of stack_save(9), do not search
loaded modules (pass 0/false for the can_lock arg).  Searching the unwind
info in modules acquires an exclusive sxlock, and the stack(9) functions can
be called in a context where unbounded sleeps are forbidden (such as from
the witness checkorder code).

Just ignoring the existence of modules in stack_save() is not ideal, so I'm
looking for a better solution, but this commit will make it possible to boot
an ARM kernel with WITNESS enabled again, until I get something better.

PR:		242200

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