/c: unmount pending error: blocks -68512 files 0
Kris Kennaway
kris at obsecurity.org
Fri Jan 27 16:53:10 PST 2006
On Fri, Jan 27, 2006 at 07:50:18PM -0500, Chuck Swiger wrote:
> Kris Kennaway wrote:
> > /c: unmount pending error: blocks -68512 files 0
> >
> > This warning has been popping up sporadically on my systems at reboot
> > time since FreeBSD 5.3..what causes it?
>
> 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 pending error:'
> /usr/src/sys/ufs/ffs/ffs_vfsops.c:961:
>
> if (fs->fs_pendingblocks != 0 || fs->fs_pendinginodes != 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 = 0;
> fs->fs_pendinginodes = 0;
> }
>
> A quick look there suggests that ffs_unmount() tries to call
> softdep_flushfiles() or ffs_flushfiles(). Apparently, if those fail to flush
> all pending data, the error message you've seen is generated.
>
> The printf() statement should be using an unsigned int format string rather than
> claiming a negative number of blocks is affected, or perhaps
> fs->fs_pendingblocks ought to be an u_int64_t...?
>
> --
> -Chuck
>
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