geom mirror problem

[Pawel Jakub Dawidek]

On Thu, Oct 07, 2004 at 03:24:21PM +0200, John Hay wrote:
+> Ok with an updated RELENG_5 and g_mirror.c patched with v 1.34, 1.35
+> and 1.36 and also with your gmirror.patch, which adds g_waitidlelock()
+> I still get the setrootbyname failed message and then it goes to the
+> mountroot> prompt.

With g_mirror.c 1.36 there should be no race you are seeing...

+> I'll try without the gmirror.patch and see how that goes, but it will
+> be a few hours because syncing takes a while on two 120G disks.
+> 
+> Something that still bothers me are those
+> 
+> GEOM_MIRROR: Cannot update metadata on disk ad0 (error=1).

This is because ad0 is open with exclusive bit, so gmirror cannot open
it for writing and it gets (EPERM - error=1 - errno(2)).
gmirror.patch should eliminate this race.

-- 
Pawel Jakub Dawidek                       http://www.FreeBSD.org
pjd at FreeBSD.org                           http://garage.freebsd.pl
FreeBSD committer                         Am I Evil? Yes, I Am!
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