Re: head -r365932 on PowerMac G5 (2 dual-core sockets): Crashe s before login prompt if powerd is enabled in /etc/rc.conf

"Brandon Bergren" <[email protected]>
Newsgroups gmane.os.freebsd.devel.ppc
Message-ID <[email protected]>

On Tue, Sep 22, 2020, at 2:35 PM, Mark Millard wrote:
> 
> Seems to target 32 bit powerpc but the context I'm reporting is
> for powerpc64 overall. May be the mis-compiles are not limited
> to 32-bit powerpc variants?

DOH! You're right, 

Try a build with _MINUS_O forced to -O2 and see if that fixes things.

FWIW, there is a differential to change the default across the board @ https://reviews.freebsd.org/D26471 because the whole "inlines are not inlining" problem affects everything.

The change boils down to LLVM 11 changing their default of what -O "means" to be -O1 instead of -O2, which breaks a bunch of kernel assumptions regarding inlining.

-- 
  Brandon Bergren
  [email protected]
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