Date: Tue, 26 Oct 2004 08:30:26 GMT From: Irina Liakh <spell@itl.ua> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/73094: [unionfs] system runs out of vnodes Message-ID: <200410260830.i9Q8UQ42014728@freefall.freebsd.org>
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The following reply was made to PR kern/73094; it has been noted by GNATS.
From: Irina Liakh <spell@itl.ua>
To: David Schultz <das@FreeBSD.ORG>
Cc: FreeBSD-gnats-submit@FreeBSD.ORG
Subject: Re: kern/73094: [unionfs] system runs out of vnodes
Date: Tue, 26 Oct 2004 11:21:28 +0300
On Mon, Oct 25, 2004 at 04:47:34PM -0400, David Schultz wrote:
> What makes you think this has something to do with the resident
> page count, as opposed to v_usecount?
I've inserted to getnewvnode()
printf("vtryrecycle() error: %d\n", error);
after
error = vtryrecycle(vp);
recompiled kernel, rebooted and got permanent (while find <unionfs_mount_point>)
vtryrecycle() error: 16
(EBUSY) on system console
Then I've inserted similar printf()-code to vtryrecycle()
and located that vtryrecycle fails here:
if (object->resident_page_count ||
object->ref_count) {
VM_OBJECT_UNLOCK(object);
error = EBUSY;
Then inserted here
printf("resident_page_count=%d ref_count=%d\n",
object->resident_page_count, object->ref_count)
and got permanent
resident_page_count=1 ref_count=0
at system console.
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