[4287] in arla-drinkers
Re: Patches to get Arla running on FreeBSD 8-CURRENT
daemon@ATHENA.MIT.EDU (Alec Kloss)
Sat Feb 23 06:06:23 2008
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Date: Sat, 23 Feb 2008 05:05:49 -0600
To: Robert Watson <rwatson@FreeBSD.org>
Subject: Re: Patches to get Arla running on FreeBSD 8-CURRENT
Message-ID: <20080223110549.GG38141@hamlet.setfilepointer.com>
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From: Alec Kloss <alec-keyword-arla.4d43de@SetFilePointer.com>
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Cc: afs@FreeBSD.org, arla-drinkers@stacken.kth.se, Rasmus Kaj <kaj@kth.se>
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On 2008-02-23 04:29, Alec wrote:
>=20
> #define HAVE_KERNEL_INSMNTQUE 1=20
>=20
> in it. I'll add it to my list of configure-related issues.
> Recompiling now...
>=20
oldothello% uname -a
FreeBSD oldothello.setfilepointer.com 8.0-CURRENT FreeBSD 8.0-CURRENT #0: W=
ed Feb 20 13:45:22 CST 2008 root@oldothello.setfilepointer.com:/usr/local/o=
bj/usr/src/sys/GENERIC
i386
oldothello% ls /afs
andrew.cmu.edu grand.central.org openafs.org
athena.mit.edu hallf.kth.se research.company.com
cern.ch isk.kth.se rose-hulman.edu
deek.org it.kth.se setfilepointer.com
dementia.org md.kth.se stacken.kth.se
dev.mit.edu mech.kth.se
e.kth.se mekinok.com
oldothello%
Neat! Heimdal gets tokens correctly, access to private directories
works. I'm running the arla test suite now; I'm up to hardlink3
with no problems. I did notice that, when umounting /afs, I get
a lock order reversal:
lock order reversal:
1st 0xc231329c vfslock (vfslock) @ /usr/src/sys/kern/vfs_mount.c:1242
2nd 0xc2dabaf8 syncer (syncer) @ /usr/src/sys/kern/vfs_subr.c:2156
KDB: stack backtrace:
db_trace_self_wrapper(c0af1b78,cd4b3b2c,c07a1a6e,c0af3fc2,c2dabaf8,...) at =
db_trace_self_wrapper+0x26
kdb_backtrace(c0af3fc2,c2dabaf8,c0afad01,c0afad01,c0afa47c,...) at kdb_back=
trace+0x29
witness_checkorder(c2dabaf8,9,c0afa47c,86c,c0c16cb4,...) at witness_checkor=
der+0x6de
_lockmgr(c2dabaf8,2002,c2dabb28,c0afa47c,86c,...) at _lockmgr+0x43c
vop_stdlock(cd4b3bc4,c0afa47c,c07a1338,2002,c2dabaa0,...) at vop_stdlock+0x=
39
VOP_LOCK1_APV(c0bb0980,cd4b3bc4,84f,cd4b3be4,c2dabb28,...) at VOP_LOCK1_APV=
+0xa5
_vn_lock(c2dabaa0,2002,c0afa47c,86c,0,...) at _vn_lock+0xf2
vrele(c2dabaa0,0,c0af9de1,4f0,4da,...) at vrele+0x142
dounmount(c231329c,8000000,c356b000,482,8,...) at dounmount+0x372
unmount(c356b000,cd4b3cfc,8,cd4b3d38,c0ba0ed0,...) at unmount+0x2e0
syscall(cd4b3d38) at syscall+0x2b3
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (22, FreeBSD ELF32, unmount), eip =3D 0x280c62db, esp =3D
0xbfbfe4ec, ebp =3D 0xbfbfe5a8 ---
I see a few other lock order reversals on -CURRENT right now
anyway, so I'm not sure if it's cause for concern or even caused
by arla.
I'm going to move on to trying everything on 7.x. I know there are
autoconf/etc. things that need to be fixed. Do you want me to work
on that or are you likely to have it done already. =20
I do have a tweaked version of your patch---as I recall it contains
just one typo fix---at
http://setfilepointer.com/pub/arla/20080218-arla.diff
There's also the snapshot of the sources I used:
http://setfilepointer.com/pub/arla/arla-20080118.tar.bz2
Assuming I get things working on 7.x, I'll update the port I built
later today. :)
--=20
Alec Kloss alec@SetFilePointer.com IM: angryspamhater@yahoo.com
PGP key at http://pgp.mit.edu:11371/pks/lookup?op=3Dget&search=3D0xA241980E
"No Bunny!" -- Simon, from Frisky Dingo
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