Date: Sun, 27 Jul 2014 16:50:14 +0200 From: Harald Schmalzbauer <h.schmalzbauer@omnilan.de> To: Konstantin Belousov <kostikbel@gmail.com> Cc: FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: panic/lock on 9.3-RELEASE with nullfs/nfs/zfs combination Message-ID: <53D511A6.4010102@omnilan.de> In-Reply-To: <53D5105A.6040204@omnilan.de> References: <53D12973.3010805@omnilan.de> <20140724165917.GT93733@kib.kiev.ua> <53D1503B.2030200@omnilan.de> <20140724193048.GU93733@kib.kiev.ua> <53D2006C.7090207@omnilan.de> <20140725151448.GY93733@kib.kiev.ua> <53D380B2.2080700@omnilan.de> <20140726114839.GF93733@kib.kiev.ua> <53D5105A.6040204@omnilan.de>
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[-- Attachment #1 --] Bezüglich Harald Schmalzbauer's Nachricht vom 27.07.2014 16:44 (localtime): > … >> After that, you could try the patch which I posted at winter, but which >> was not tested. I do not know whether it is of any help, and I do need >> the debugging information with the patch above before I can make any >> conclusions. >> >> diff --git a/sys/fs/nullfs/null_subr.c b/sys/fs/nullfs/null_subr.c >> index fa6c4af..3f74579 100644 >> --- a/sys/fs/nullfs/null_subr.c >> +++ b/sys/fs/nullfs/null_subr.c >> @@ -251,6 +251,7 @@ null_nodeget(mp, lowervp, vpp) >> vp->v_type = lowervp->v_type; >> vp->v_data = xp; >> vp->v_vnlock = lowervp->v_vnlock; >> + vp->v_vflag = lowervp->v_vflag & VV_ROOT; >> error = insmntque1(vp, mp, null_insmntque_dtr, xp); >> if (error != 0) >> return (error); > I tested this without the ldvp-debug patch and besides the same > ufs/devds LOR nothing else happens with my usual simple end limited test. One thing to note: With the first rw-open on the nullfs-mount, there's always a almost 1 second dely on an otherwise incredibly responsive machine. That delay happens always after a reboot, and never after first rw-opened any file, regardless if I rw-open the same or a different file on the nullfs-mount. Is that something to worry about? Or a simple reason I can understand? Thanks, -Harry [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) iEYEARECAAYFAlPVEaYACgkQLDqVQ9VXb8joEQCcC2bwmlpd7+ZeywOGbKwgNfuf n2EAoKCaK4kDFUHZik8LxyZffE+9YfYs =iArG -----END PGP SIGNATURE-----
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