Date: Tue, 7 Nov 2000 10:31:17 -0800 (PST) From: Alfred Perlstein <alfred@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/i386 pmap.c Message-ID: <200011071831.KAA52148@freefall.freebsd.org>
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alfred 2000/11/07 10:31:17 PST
Modified files:
sys/i386/i386 pmap.c
Log:
Protect against an infinite loop when prefaulting pages. This can
happen when the vm system maps past the end of an object or tries
to map a zero length object, the pmap layer misses the fact that
offsets wrap into negative numbers and we get stuck.
Found by: Joost Pol aka Nohican <nohican@marcella.niets.org>
Submitted by: tegge
Revision Changes Path
1.264 +5 -2 src/sys/i386/i386/pmap.c
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