Date: Fri, 27 Jan 2006 19:53:04 -0500 From: Kris Kennaway <kris@obsecurity.org> To: Chuck Swiger <cswiger@mac.com> Cc: current@FreeBSD.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: /c: unmount pending error: blocks -68512 files 0 Message-ID: <20060128005304.GA70164@xor.obsecurity.org> In-Reply-To: <43DABFCA.5030509@mac.com> References: <20060128000909.GA69458@xor.obsecurity.org> <43DABFCA.5030509@mac.com>
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On Fri, Jan 27, 2006 at 07:50:18PM -0500, Chuck Swiger wrote:
> Kris Kennaway wrote:
> > /c: unmount pending error: blocks -68512 files 0 =20
> >=20
> > This warning has been popping up sporadically on my systems at reboot
> > time since FreeBSD 5.3..what causes it?
>=20
> Did you have any processes stuck in an uninterruptable condition when you
> unmounted the filesystem? The message is from:
Perhaps, but none that I noticed this time. I do encounter that
sometimes though.
Kris
> > % find /usr/src/sys -name *.c -print0 | xargs -0 grep -n 'unmount pendi=
ng error:'
> /usr/src/sys/ufs/ffs/ffs_vfsops.c:961:
>=20
> if (fs->fs_pendingblocks !=3D 0 || fs->fs_pendinginodes !=3D 0) {
> printf("%s: unmount pending error: blocks %jd files %d\n",
> fs->fs_fsmnt, (intmax_t)fs->fs_pendingblocks,
> fs->fs_pendinginodes);
> fs->fs_pendingblocks =3D 0;
> fs->fs_pendinginodes =3D 0;
> }
>=20
> A quick look there suggests that ffs_unmount() tries to call
> softdep_flushfiles() or ffs_flushfiles(). Apparently, if those fail to f=
lush
> all pending data, the error message you've seen is generated.
>=20
> The printf() statement should be using an unsigned int format string rath=
er than
> claiming a negative number of blocks is affected, or perhaps
> fs->fs_pendingblocks ought to be an u_int64_t...?
>=20
> --=20
> -Chuck
>=20
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