Date: Sat, 3 Sep 2005 19:43:15 +0000 (UTC) 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 pmap.c Message-ID: <200509031943.j83JhGYK079303@repoman.freebsd.org>
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marcel 2005-09-03 19:43:15 UTC
FreeBSD src repository
Modified files:
sys/ia64/ia64 pmap.c
Log:
Fix collision chain termination checks. The result of IA64_PHYS_TO_RR7
is never 0, so one cannot test for a NULL pointer after a physical
address is translated into a virtual pointer with said macro. Instead,
keep the physical address around and test it against 0. Note that
this obviously implies that a PTE can never be allocated at physical
address 0. This isn't exactly guaranteed, but hasn't been a problem
so far. We test the physical address against 0 for as long as the ia64
port exists...
Revision Changes Path
1.164 +17 -15 src/sys/ia64/ia64/pmap.c
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