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Date:      Wed, 22 Dec 2004 10:51:27 +0100
From:      Pawel Jakub Dawidek <>
To:        Daniel Eriksson <>
Subject:   Re: geom_gate panic
Message-ID:  <>
In-Reply-To: <!~!>
References:  <!~!>

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On Wed, Dec 22, 2004 at 03:27:35AM +0100, Daniel Eriksson wrote:
+> Using geom_gate to mount a geom_stripe array from another machine (hooke=
d up
+> through a crossover cable), the following happens when moving large amou=
+> of data:
+> g_vfs_done():ggate0[WRITE(offset=3D59507982336, length=3D131072)]error =
=3D 5
+> ...
+> g_vfs_done():ggate0[WRITE(offset=3D1119618220032, length=3D131072)]error=
 =3D 5
+> g_vfs_done():ggate0[WRITE(offset=3D1062713851904, length=3D16384)]error =
=3D 5
+> g_vfs_done():ggate0[WRITE(offset=3D1101811367936, length=3D49152)]error =
=3D 5

Error number 5 is EIO. GGATE can generate such an error in some situations
(e.g. queue is full). Please, increase debug level to 1
(kern.geom.gate.debug=3D1) and send me debug printfs from before panic.

We can see other serious problem here - UFS cannot handle EIOs properly...

Pawel Jakub Dawidek                              
FreeBSD committer                         Am I Evil? Yes, I Am!

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