At Wed, 19 Jun 2024 11:44:11 +0200, Manuel Bouyer <bouyer%antioche.eu.org@localhost> wrote: Subject: HEAD UP possible disk corruption for linux guests > > Hello > be warned that on a NetBSD dom0 running netbsd-10 or HEAD (anything with > xbdback_xenbus.c 1.83 or newer, really), a linux domU may corrupt its > virtual disk with a real risk of data loss (been there ...) > The problem is that rev 1.83 oversimplifed the xbd implementation and > doens't properly handle some request allowed by the xbd protocol. > This should be fixed with xbdback_xenbus.c 1.105 which I just commited. Hmmm.... I guess I need to test to see if this fixes the FreeBSD use of xbd for LVM-backed storage too! The timelines for 1.83 vs the 1.97 I was testing when I discovered the FreeBSD problem don't quite line up on first glance, but I don't know for sure what revision was in use for last working dom0 I was running back then -- it didn't seem it could be older than 1.83, but maybe it was. I don't have a copy of it any more. It might take me some days to do this though.... -- Greg A. Woods <gwoods%acm.org@localhost> Kelowna, BC +1 250 762-7675 RoboHack <woods%robohack.ca@localhost> Planix, Inc. <woods%planix.com@localhost> Avoncote Farms <woods%avoncote.ca@localhost>
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