Date: Fri, 05 Dec 2008 09:36:19 +0900 From: Daichi GOTO <daichi@freebsd.org> To: "Paul B. Mahol" <onemda@gmail.com> Cc: freebsd-fs@freebsd.org, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: [Call for Test] a patch for kern/121385 - Unionfs cross mount issue Message-ID: <49387783.7080503@freebsd.org> In-Reply-To: <3a142e750812041221v26520a53q4f7df488af607305@mail.gmail.com> References: <4917E0C9.5020105@ongs.co.jp> <3a142e750812041221v26520a53q4f7df488af607305@mail.gmail.com>
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Thanks for your test, Paul B. Mahol wrote: > On 11/10/08, Daichi GOTO <daichi@ongs.co.jp> wrote: >> Hi Unionfs users >> >> About kern/121385 - Unionfs cross mount issue, by discussion at >> EuroBSDCon2008, >> unionfs does not allow user to do cross mount operation. If you have some >> interest >> this issue, please get this patch and try with current. I'll commit this >> patch after 1 week later. >> >> PR: http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/121385 >> Patch: >> http://people.freebsd.org/~daichi/unionfs/experiments/unionfs-cross-mount.diff >> >> This issue was discussed at EuroBSDCon2008 FreeBSD developer summit. >> Thanks for hrs and gnn :) >> >> -- >> Daichi GOTO, http://people.freebsd.org/~daichi >> _______________________________________________ >> freebsd-current@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-current >> To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >> > > I tested CURRENT and was unable to reproduce panic. You cannot get the same panic described on kern/121385 as follow: http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/121385 How-To-Repeat: # mkdir -p /unionfs/disk1 # mkdir -p /unionfs/disk2 # mount -t unionfs /unionfs/disk1 /unionfs/disk2 # mount -t unionfs /unionfs/disk2 /unionfs/disk1 # touch /unionfs/disk1/foo <freeze or crash> The r178483 (http://svn.freebsd.org/viewvc/base?view=revision&revision=178483) avoids this panic. Try without r178483 and you will get a panic. Some discussions with some developers, we are testing a new cross-mount issue patch, after some more check, I'll open it. thanks :) -- Daichi GOTO, http://people.freebsd.org/~daichi
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