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Subject: [Bug 214761] head -r279594 (2015-Mar-4 11-CURRENT) introduced iMac
 G3 boot-time crash; release/11.x releng/11.x stable/11 and head (12-CURRENT)
 broken
Date: Fri, 09 Dec 2016 03:03:47 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D214761

--- Comment #1 from Mark Millard <markmi@dsl-only.net> ---
-r309167 fixed this in head by fixing:

sys/powerpc/include/cpufunc.h

to include the isync in the inline routine for
mtsrin:

-       __asm __volatile ("mtsrin %0,%1" :: "r"(value), "r"(va));
+       __asm __volatile ("mtsrin %0,%1; isync" :: "r"(value), "r"(va));


The "MFC after: 1 week" has not occurred to stable/11 yet.

I do not know if the MFC is required for a "Closed: Fixed"
status or not.

I do not know if some releng/11.0.? might pick up the
change in order to allow iMac's and such to boot in some
11.0 vintages. I doubt a releng update would delay the
status change if stable/11 had the change.

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