Date: Tue, 12 Aug 2003 20:20:10 -0700 (PDT) From: Marcel Moolenaar <marcel@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/ia64/ia64 trap.c Message-ID: <200308130320.h7D3KB84049007@repoman.freebsd.org>
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marcel 2003/08/12 20:20:10 PDT
FreeBSD src repository
Modified files:
sys/ia64/ia64 trap.c
Log:
Don't use VM_MIN_KERNEL_ADDRESS to check if the faulting address is
in user space or kernel space. VM_MIN_KERNEL_ADDRESS starts after the
gateway page, which means that improper memory accesses to the gateway
page while in user mode would panic the kernel. Use VM_MAX_ADDRESS
instead. It ends before the gateway page. The difference between
VM_MIN_KERNEL_ADDRESS and VM_MAX_ADDRESS is exactly the gateway page.
Revision Changes Path
1.88 +2 -2 src/sys/ia64/ia64/trap.c
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