Date: Wed, 28 Apr 1999 08:52:12 -0700 (PDT) From: Dmitrij Tejblum <dt@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/alpha/alpha pmap.c Message-ID: <199904281552.IAA34436@freefall.freebsd.org>
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dt 1999/04/28 08:52:11 PDT
Modified files:
sys/alpha/alpha pmap.c
Log:
pmap_emulate_reference: don't ever lose PV_TABLE_MOD bit on page. If
PV_TABLE_REF cleared before PV_TABLE_MOD, the page may get fault on read again.
On fault on write, pmap_emulate_reference mark the page dirty with
vm_page_dirty. That decrease ill effects of the bug.
The problem probably become more serious after my rev.1.18 a week ago.
Revision Changes Path
1.21 +2 -2 src/sys/alpha/alpha/pmap.c
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