Date: Wed, 28 Nov 2012 16:13:17 +0200 From: Andriy Gapon <avg@FreeBSD.org> To: Josh Beard <josh@signalboxes.net> Cc: freebsd-fs@FreeBSD.org Subject: Re: ZFS: Panic when attempting to delete certain data Message-ID: <50B61BFD.20509@FreeBSD.org> In-Reply-To: <CAHDrHSsVfeRSbSxe6W7qtHSfOi_DA6QXG38utKgQko7A49uoXQ@mail.gmail.com> References: <CAHDrHStcfSJ-9ueSV%2BFujEsmAK3zMX2CAGVD6Xz_2gJAThu5Kg@mail.gmail.com> <50B50B04.8020109@FreeBSD.org> <CAHDrHSteXO2pzkUtG0WHcgChsyXiBk2of4P0gR7ccY5srWNdew@mail.gmail.com> <50B52CEC.9080208@FreeBSD.org> <CAHDrHSvsrwx5qEimdx7e6eHoXTLwQ1AeH80Nx8izA7BTfFb8Jg@mail.gmail.com> <50B5CFAF.8070306@FreeBSD.org> <CAHDrHSv8Tv6Yr9z0PzWFFOqZPLiTN9EkH6nQsEMr48sz%2Bsaizg@mail.gmail.com> <50B61672.2070406@FreeBSD.org> <CAHDrHSsVfeRSbSxe6W7qtHSfOi_DA6QXG38utKgQko7A49uoXQ@mail.gmail.com>
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on 28/11/2012 16:07 Josh Beard said the following: > > > On Wed, Nov 28, 2012 at 6:49 AM, Andriy Gapon <avg@freebsd.org > <mailto:avg@freebsd.org>> wrote: > This is something that I said earlier in the private conversation that I > mentioned: > > Andriy Gapon said: > > The relevant commits are r240632 and r240345. I can't recall when I MFC-ed them > > to stable/9. Most likely they are not in 9.1 releng branch. > [snip] > > I also don't have a good advice on how to fix the existing corruption. > > I'd probably go with using something like tar/cpio/pax to move data to fresh > > filesystem. Please be sure to use latest stable/9 or 8 to not run into the > > issue again. > > > > zfs send/recv won't help, it would mindlessly replicate the corrupted > attributes. > > To this I might add that the bugs were not FreeBSD-specifc and they may be still > present in ZFS upstream and other ZFS ports. > > Thank you for the debugging information. > -- > Andriy Gapon > > > Andriy, > > Does this mean re-creating the dataset (or the pool?) would resolve this under a > recent stable/9 build would resolve this? > > I have no problem doing so - as the data is redundant. > > Thanks for your help on this. As I've said above - it depends. If you just do normal file operations then the problem should not re-appear. If it does, then please report. If you zfs send/recv data from older systems or other operating systems, then you may run into the problem again. -- Andriy Gapon
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