Date: Mon, 20 Sep 1999 12:08:49 -0700 (PDT) From: Matt Dillon <dillon@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/alpha/alpha vm_machdep.c src/sys/i386/i386 vm_machdep.c src/sys/kern sys_pipe.c src/sys/vm vm_extern.h Message-ID: <199909201908.MAA39566@freefall.freebsd.org>
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dillon 1999/09/20 12:08:48 PDT
Modified files:
sys/alpha/alpha vm_machdep.c
sys/i386/i386 vm_machdep.c
sys/kern sys_pipe.c
sys/vm vm_extern.h
Log:
Fix bug in pipe code relating to writes of mmap'd but illegal address
spaces which cross a segment boundry in the page table. pmap_kextract()
is not designed for access to the user space portion of the page
table and cannot handle the null-page-directory-entry case.
The fix is to have vm_fault_quick() return a success or failure which
is then used to avoid calling pmap_kextract().
Revision Changes Path
1.22 +6 -4 src/sys/alpha/alpha/vm_machdep.c
1.127 +7 -4 src/sys/i386/i386/vm_machdep.c
1.56 +3 -4 src/sys/kern/sys_pipe.c
1.44 +2 -2 src/sys/vm/vm_extern.h
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