Date: Fri, 10 Jul 2009 12:27:44 -0700 From: Kip Macy <kmacy@freebsd.org> To: Thomas Backman <serenity@exscape.org> Cc: freebsd-fs@freebsd.org, FreeBSD current <freebsd-current@freebsd.org> Subject: Re: Reproducible ZFS panic, w/ script (Was: "New" ZFS crash on FS (pool?) unmount/export) Message-ID: <3c1674c90907101227ueab78eem6f8c5c7fdf0337cc@mail.gmail.com> In-Reply-To: <45291598-D091-4E90-B968-22E59BEB3846@exscape.org> References: <72163521-40BF-4764-8B74-5446A88DFBF8@exscape.org> <E085112F-B828-4514-B93C-419E7E7FD5FB@exscape.org> <45291598-D091-4E90-B968-22E59BEB3846@exscape.org>
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"zfs export" does a forced unmount. We may not be properly handling dangling references. -Kip On Fri, Jul 10, 2009 at 12:25 PM, Thomas Backman<serenity@exscape.org> wrote: > On Jul 10, 2009, at 21:01, Thomas Backman wrote: >> >> OK, I've finally written a script that reproduces this panic for me every >> time (6-7 tries in a row should be good enough, plus one on another box). It >> would be great to have a few testers - and if you do test it, PLEASE report >> your results here - positive or negative! >> The main aim is, of course, to provide ZFS devs with their own core dumps, >> DDB consoles and whatnot to possibly resolve this issue. >> [...] >> Back to the panic: >> The problem appears to be related to clones somehow - the first two times >> I ran in to this panic (in real use) was when messing with clone/promote... >> so that's what this script does. > > Damnit. Very sorry for the noise, but I just noticed that it IS NOT related > to the clones. It crashes with the clone/promote lines (#77-78) commented > out, too... > Now I'm stumped as to where the issue is, I hope the previous mail can help > track it down. > A very similar setup runs every night, and it "only" crashes about one time > in 10 or so. This crashes *every* time and I don't really see the difference > between the commands the scripts run. Oh well... > > Regards, > Thomas > _______________________________________________ > 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" > -- When bad men combine, the good must associate; else they will fall one by one, an unpitied sacrifice in a contemptible struggle. Edmund Burke
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