Date: Sun, 3 Sep 2006 21:20:21 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/sparc64/sparc64 mp_machdep.c Message-ID: <200609032120.k83LKLGK063535@repoman.freebsd.org>
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marius 2006-09-03 21:20:21 UTC
FreeBSD src repository
Modified files:
sys/sparc64/sparc64 mp_machdep.c
Log:
Do as the USII CPU manual suggests and leave interrupts enabled
for a bit before retrying to resend an IPI in order to avoid
deadlocks if the other CPU is also trying to send one.
OpenSolaris uses a delay of 1 microsecond here but waiting 2
microseconds with interrupts enabled like Linux does shouldn't
hurt but is a bit safer.
MFC after: 1 day
Revision Changes Path
1.33 +6 -0 src/sys/sparc64/sparc64/mp_machdep.c
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