Date: Tue, 25 Sep 2007 11:45:10 -0500 From: Alan Cox <alc@cs.rice.edu> To: Rink Springer <rink@FreeBSD.org> Cc: Alan Cox <alc@FreeBSD.org>, cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/amd64/include vmparam.h src/sys/arm/include vmparam.h src/sys/i386/include vmparam.h src/sys/ia64/include vmparam.h src/sys/kern kern_exec.c vfs_bio.c src/sys/powerpc/include vmparam.h src/sys/sparc64/include ... Message-ID: <46F93B16.50102@cs.rice.edu> In-Reply-To: <20070925110147.GC60963@rink.nu> References: <200709250625.l8P6P7w7082233@repoman.freebsd.org> <20070925110147.GC60963@rink.nu>
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Rink Springer wrote:
> Hi Alan,
>
> On Tue, Sep 25, 2007 at 06:25:07AM +0000, Alan Cox wrote:
>
>> Change the management of cached pages (PQ_CACHE) in two fundamental
>> ways:
>>
>
> With this change, KDE no longer starts up; the process 'kbuildsycoca'
> seems to wait forever in status 'madvpo'. Reverting this changeset fixes
> the problem.
>
>
This is a problem with madvise(WILLNEED). I believe that the attached
patch will fix it.
Thanks,
Alan
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Index: vm/vm_object.c
===================================================================
RCS file: /home/ncvs/src/sys/vm/vm_object.c,v
retrieving revision 1.383
diff -p -u -r1.383 vm_object.c
--- vm/vm_object.c 25 Sep 2007 06:25:06 -0000 1.383
+++ vm/vm_object.c 25 Sep 2007 16:17:40 -0000
@@ -1105,7 +1105,8 @@ shadowlookup:
/*
* If the page is cached, reactivate it.
*/
- m = vm_page_alloc(tobject, tpindex, VM_ALLOC_IFCACHED);
+ m = vm_page_alloc(tobject, tpindex, VM_ALLOC_IFCACHED |
+ VM_ALLOC_NOBUSY);
}
if (m == NULL) {
/*
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