[Bug runtime/20735] "soft lockup" bug on RHEL7 ppc64

[dsmith at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=20735

David Smith <dsmith at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #3 from David Smith <dsmith at redhat dot com> ---
(In reply to David Smith from comment #2)
> Unfortunately, this patch causes the at_var.exp test to get hung, so I'll
> need to do more work here.

That comment was supposed to go on PR20742.

This "soft lockup" bug is fixed in commit 58c9bd1 by using the solution
mentioned in comment #1 of avoiding the module mutex and disabling/enable
preemption around kallsyms_on_each_symbol() calls instead.

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