Date: Thu, 2 Dec 2010 22:19:30 +0000 (UTC) From: Bruce Cran <brucec@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/share/man/man9 bus_space.9 src/sys/amd64/include bus.h src/sys/arm/include bus.h src/sys/i386/include bus.h src/sys/ia64/include bus.h src/sys/mips/include bus.h src/sys/pc98/include bus.h src/sys/powerpc/include bus.h ... Message-ID: <201012022221.oB2MLBJw096723@repoman.freebsd.org>
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brucec 2010-12-02 22:19:30 UTC
FreeBSD src repository
Modified files:
share/man/man9 bus_space.9
sys/amd64/include bus.h
sys/arm/include bus.h
sys/i386/include bus.h
sys/ia64/include bus.h
sys/mips/include bus.h
sys/pc98/include bus.h
sys/powerpc/include bus.h
sys/sparc64/include bus.h
sys/sun4v/include bus.h
Log:
SVN rev 216134 on 2010-12-02 22:19:30Z by brucec
Disallow passing in a count of zero bytes to the bus_space(9) functions.
Passing a count of zero on i386 and amd64 for [I386|AMD64]_BUS_SPACE_MEM
causes a crash/hang since the 'loop' instruction decrements the counter
before checking if it's zero.
PR: kern/80980
Discussed with: jhb
Revision Changes Path
1.6 +3 -0 src/share/man/man9/bus_space.9
1.18 +18 -12 src/sys/amd64/include/bus.h
1.12 +59 -8 src/sys/arm/include/bus.h
1.15 +24 -12 src/sys/i386/include/bus.h
1.28 +31 -24 src/sys/ia64/include/bus.h
1.8 +67 -8 src/sys/mips/include/bus.h
1.10 +9 -7 src/sys/pc98/include/bus.h
1.22 +69 -11 src/sys/powerpc/include/bus.h
1.45 +59 -56 src/sys/sparc64/include/bus.h
1.8 +59 -56 src/sys/sun4v/include/bus.h
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