Date: Mon, 26 May 2003 15:54:18 -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 pmap.c Message-ID: <200305262254.h4QMsJ5H021053@repoman.freebsd.org>
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marcel 2003/05/26 15:54:18 PDT
FreeBSD src repository
Modified files:
sys/ia64/ia64 pmap.c
Log:
Revision 1.99 of this file changed the allocation request from
VM_ALLOC_INTERRUPT to VM_ALLOC_SYSTEM. There was no mention of
this in commit log as it was considered harmless. Guess what:
it does harm. WITNESS showed that we can not safely grab the
page queue lock in vm_page_alloc() in all cases as we may have
to sleep on it. Revert the request to VM_ALLOC_INTERRUPT to
circumvent this. We panic if vm_page_alloc returns 0. I'm not
entirely happy about this, but we have bigger fish to fry.
Approved by: re@ (blanket)
Revision Changes Path
1.107 +1 -1 src/sys/ia64/ia64/pmap.c
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