Date: Mon, 17 May 2004 17:42:45 +0300 From: Alex Lyashkov <shadow@psoft.net> To: "Kevin A. Pieckiel" <pieckiel+freebsd-hackers@sdf.lonestar.org> Cc: John Baldwin <jhb@FreeBSD.org> Subject: Re: 5.2.1 panic Message-ID: <1084804965.7881.2.camel@berloga.shadowland> In-Reply-To: <20040517130456.GA21383@SDF.LONESTAR.ORG> References: <20040513171659.GA14716@SDF.LONESTAR.ORG> <200405141133.49502.jhb@FreeBSD.org> <20040517130456.GA21383@SDF.LONESTAR.ORG>
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=F7 =F0=CE=C4, 17.05.2004, =D7 16:04, Kevin A. Pieckiel =D0=C9=DB=C5=D4:
> On Fri, May 14, 2004 at 11:33:49AM -0400, John Baldwin wrote:
>=20
> > Do 'l *0xc0519a64' in gdb to get the line that it actually faulted on. =
Since=20
> > this is likely a NULL pointer deref that might help you fix the bug or =
at=20
> > least find out its cause.
>=20
> Wow. That's interesting to me. I didn't expect this:
>=20
> (kgdb) l *0xc0519a64
> 0xc0519a64 is in quotactl (/usr/src/sys/kern/vfs_syscalls.c:206).
> 201 NDFREE(&nd, NDF_ONLY_PNBUF);
> 202 error =3D vn_start_write(nd.ni_vp, &mp, V_WAIT | PCATCH);
> 203 vrele(nd.ni_vp);
> 204 if (error)
> 205 return (error);
> 206 error =3D VFS_QUOTACTL(mp, uap->cmd, uap->uid, uap->arg, =
td);
> 207 vn_finished_write(mp);
> 208 return (error);
> 209 }
> 210
Please update you source. It`s bug already fixed at
src/sys/kern/vfs_syscalls.c v. 1.345
=3D=3D=3D=3D=3D
Modified files:
sys/kern vfs_syscalls.c=20
Log:
Always use nd.ni_vp->v_mount as an argument for VFS_QUOTACTL(), just
like
in RELENG_4.
=3D=3D=3D=3D=3D
--=20
Alex Lyashkov <shadow@psoft.net>
PSoft
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