Date: Fri, 06 May 2005 12:44:20 +0200 From: Eirik =?ISO-8859-1?B?2A==?=verby <ltning@anduin.net> To: "Marc G. Fournier" <scrappy@hub.org> Cc: "stable@freebsd.org" <stable@freebsd.org> Subject: Re: Current status of nullfs and/or unionfs? Message-ID: <BEA11724.14A48%ltning@anduin.net> In-Reply-To: <20050505115903.K42300@ganymede.hub.org>
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On 05-05-05 16:59, "Marc G. Fournier" <scrappy@hub.org> wrote: > On Thu, 5 May 2005, Eirik [ISO-8859-1] =D8verby wrote: >=20 >> The solution, or at least parts of it, would be to have certain parts of >> the jail filesystems mounted in via nullfs (acceptable solution) or >> unionfs (ideal solution). However, ever since FreeBSD 4.10 this has been >> a major problem, as both filesystems started exhibiting major stability >> and data integrity issues. >=20 > I'm running 4.11 with ~90 mount/jails running on two of our servers ... > haven't noticed any stability problems ... what are you seeing? I was seeing panics and deadlocks (hangs), seemingly unrelated to the level of disk activity, and sometimes I even had the suspicion that just having such a mountpoint, even though the jail wasn't started, could be enough to bring the system down. The problems appeared around 4.9/4.10. Even though I mounted these read-only, I still saw data going bad in directories that was null-mounted. This scared me away for a very long time ;) I'm just now picking up on the unionfs use, seems to do what I want, but I have no idea if it's stable or not. I suppose we'll be seeing that soon. /Eirik =20 > ---- > Marc G. Fournier Hub.Org Networking Services (http://www.hub.or= g) > Email: scrappy@hub.org Yahoo!: yscrappy ICQ: 76156= 64 > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
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