[Bug 243711] dtrace immediately panics the system if compiled without SMP

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Wed Jan 29 23:34:13 UTC 2020


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=243711

Mark Johnston <markj at FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |markj at FreeBSD.org

--- Comment #1 from Mark Johnston <markj at FreeBSD.org> ---
Hmm, I can't even boot a non-SMP amd64 kernel on head; we panic when adding a
thread.  I guess this is some fallout from the recent scheduler locking
optimizations.  That said, I can't quite see the issue from looking at the
DTrace code.  Which revision are you running?  Out of curiosity, why are you
using a non-SMP kernel?

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