Date: Mon, 19 Apr 2010 22:17:01 -0700 From: "K. Macy" <kmacy@freebsd.org> To: Alan Cox <alc@freebsd.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r206140 - head/sys/vm Message-ID: <x2m82c4140e1004192217s4562f8c7ze88026ec9316d6d6@mail.gmail.com> In-Reply-To: <201004031620.o33GKM0n037332@svn.freebsd.org> References: <201004031620.o33GKM0n037332@svn.freebsd.org>
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How has the problem been addressed? I'm seeing periodic panics with non-zero resident count with the page lock patch applied. It is possible that I've inadvertently re-introduced an issue you've fixed. Thanks, Kip On Sat, Apr 3, 2010 at 9:20 AM, Alan Cox <alc@freebsd.org> wrote: > Author: alc > Date: Sat Apr 3 16:20:22 2010 > New Revision: 206140 > URL: http://svn.freebsd.org/changeset/base/206140 > > Log: > Re-enable the call to pmap_release() by vmspace_dofree(). The accounting > problem that is described in the comment has been addressed. > > Submitted by: kib > Tested by: pho (a few months ago) > MFC after: 6 weeks > > Modified: > head/sys/vm/vm_map.c > > Modified: head/sys/vm/vm_map.c > ============================================================================== > --- head/sys/vm/vm_map.c Sat Apr 3 15:52:32 2010 (r206139) > +++ head/sys/vm/vm_map.c Sat Apr 3 16:20:22 2010 (r206140) > @@ -313,6 +313,7 @@ vm_init2(void) > static inline void > vmspace_dofree(struct vmspace *vm) > { > + > CTR1(KTR_VM, "vmspace_free: %p", vm); > > /* > @@ -329,12 +330,8 @@ vmspace_dofree(struct vmspace *vm) > (void)vm_map_remove(&vm->vm_map, vm->vm_map.min_offset, > vm->vm_map.max_offset); > > - /* > - * XXX Comment out the pmap_release call for now. The > - * vmspace_zone is marked as UMA_ZONE_NOFREE, and bugs cause > - * pmap.resident_count to be != 0 on exit sometimes. > - */ > -/* pmap_release(vmspace_pmap(vm)); */ > + pmap_release(vmspace_pmap(vm)); > + vm->vm_map.pmap = NULL; > uma_zfree(vmspace_zone, vm); > } > >help
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