Date: Fri, 22 Feb 2008 07:50:50 -0600 From: Alec Kloss <alec-keyword-freebsd.org.a6e2e4@SetFilePointer.com> To: Robert Watson <rwatson@FreeBSD.org> Cc: afs@FreeBSD.org, arla-drinkers@stacken.kth.se, Rasmus Kaj <kaj@kth.se> Subject: Re: Patches to get Arla running on FreeBSD 8-CURRENT Message-ID: <20080222135050.GE38141@hamlet.setfilepointer.com> In-Reply-To: <20080222125207.GD38141@hamlet.setfilepointer.com> References: <20080216035658.W93919@fledge.watson.org> <1203286882.16414.3.camel@heterodyne.kaj> <20080218012608.V96329@fledge.watson.org> <20080222125207.GD38141@hamlet.setfilepointer.com>
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On 2008-02-22 06:52, wrote:
> Robert, I've been playing with your patches, etc. on 8-CURRENT.
[chop]
I take it back... boldly adding printf all over says:
vp->v_mount is null
in the NNPFS_FROM_VNODE macro.
Adding if (vp->v_mount) return EDOOFUS does:
ls: /afs: Programming error
Attempting to umount /afs then panics most likely for the same
reason (v_mount is null):
Fatal trap 12: page fault while in kernel mode
cpuid =3D 0; apic id =3D 00
fault virtual address =3D 0x26c
fault code =3D supervisor read, page not present
instruction pointer =3D 0x20:0xc2a26dfc
stack pointer =3D 0x28:0xcd49bb00
frame pointer =3D 0x28:0xcd49bb2c
code segment =3D base 0x0, limit 0xfffff, type 0x1b
=3D DPL 0, pres 1, def32 1, gran 1
processor eflags =3D interrupt enabled, resume, IOPL =3D 0
current process =3D 5754 (umount)
[thread pid 5754 tid 100206 ]
Stopped at nnpfs_inactive_common+0xc: movl
0x26c(%eax),%eax
db> bt
Tracing pid 5754 tid 100206 td 0xc298e220
nnpfs_inactive_common(c2a58440,c298e220,cd49bb54,c0a68485,cd49bb6c,...)
at nnpfs_inactive_common+0xc
nnpfs_inactive(cd49bb6c,c2a584c8,c2a58440,c2a584c8,cd49bb84,...) at
nnpfs_inactive+0x1e
VOP_INACTIVE_APV(c2a2b4a0,cd49bb6c,c0afa47c,8fd,c0bd93e0,...) at
VOP_INACTIVE_APV+0xa5
vinactive(c2a584c8,0,c0afa47c,86d,c253b880,...) at vinactive+0x91
vrele(c2a58440,c2a2ba70,0,c2a2800b,0,...) at vrele+0x18b
nnpfs_free_all_nodes(c2a2b6e0,0,1,c2a58330,c2a2b6e0,...) at
nnpfs_free_all_nodes+0xa5
nnpfs_unmount_common(c231329c,8000000,0,c298e220,cd49bc54,...) at
nnpfs_unmount_common+0x4e
nnpfs_unmount(c231329c,8000000,c298e220,4f0,4da,...) at
nnpfs_unmount+0x49
dounmount(c231329c,8000000,c298e220,482,8,...) at dounmount+0x426
unmount(c298e220,cd49bcfc,8,3d90d,c0ba0ed0,...) at unmount+0x2e0
syscall(cd49bd38) at syscall+0x2b3
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (22, FreeBSD ELF32, unmount), eip =3D 0x280c62db, esp =3D
0xbfbfe4dc, ebp =3D 0xbfbfe598 ---
db>
--=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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