Date: Tue, 30 Oct 2001 19:06:33 -0800 (PST) From: Matt Dillon <dillon@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/vm vm_map.c vm_map.h src/sys/i386/i386 pmap.c Message-ID: <200110310306.f9V36X057254@freefall.freebsd.org>
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dillon 2001/10/30 19:06:33 PST
Modified files:
sys/vm vm_map.h vm_map.c
sys/i386/i386 pmap.c
Log:
Don't let pmap_object_init_pt() exhaust all available free pages
(allocating pv entries w/ zalloci) when called in a loop due to
an madvise(). It is possible to completely exhaust the free page list and
cause a system panic when an expected allocation fails.
Revision Changes Path
1.292 +17 -1 src/sys/i386/i386/pmap.c
1.211 +1 -1 src/sys/vm/vm_map.c
1.68 +2 -1 src/sys/vm/vm_map.h
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