Date: Tue, 9 Mar 2010 02:00:53 +0000 (UTC) From: Nathan Whitehorn <nwhitehorn@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/powerpc/aim interrupt.c src/sys/powerpc/booke interrupt.c Message-ID: <201003090949.o299nqNw036592@repoman.freebsd.org>
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nwhitehorn 2010-03-09 02:00:53 UTC
FreeBSD src repository
Modified files:
sys/powerpc/aim interrupt.c
sys/powerpc/booke interrupt.c
Log:
SVN rev 204903 on 2010-03-09 02:00:53Z by nwhitehorn
Place interrupt handling in a critical section and remove double
counting in incrementing the interrupt nesting level. This fixes a number
of bugs in which the interrupt thread could be preempted by an IPI,
indefinitely delaying acknowledgement of the interrupt to the PIC, causing
interrupt starvation and hangs.
Reported by: linimon
Reviewed by: marcel, jhb
MFC after: 1 week
Revision Changes Path
1.11 +4 -2 src/sys/powerpc/aim/interrupt.c
1.3 +4 -4 src/sys/powerpc/booke/interrupt.c
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