# [OmniOS-discuss] assertion failed for thread / omnios r12

Richard Elling richard.elling at richardelling.com
Sat Jan 10 02:02:27 UTC 2015

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    > On Jan 9, 2015, at 1:33 PM, Randy S <sim.ple at live.nl> wrote:
    >
    > Hi all,
    >
    > Maybe this has been covered already (I saw a bug about this so I thought this occurence should not be present in omnios r12) but when I do a zdb -d rpool after having upgraded the rpool to the latest version, I get a :
    > assertion failed for thread 0xfffffd7fff162a40, thread-id 1: spa_writeable(vd->vdev_spa), file ../../../uts/common/fs/zfs/vdev.c, line 1566
    >
    > What can have caused this.

    Its a bug, zdb doesn't open the pool for writing, so it can't be writable.

    >
    > zpool upgrade rpool
    > This system supports ZFS pool feature flags.
    >
    > Enabled the following features on 'rpool':
    >   lz4_compress
    >   multi_vdev_crash_dump
    >   spacemap_histogram
    >   enabled_txg
    >   hole_birth
    >   extensible_dataset
    >   embedded_data
    >   bookmarks
    >   filesystem_limits
    >
    > Is there a way I can disable this spacemap feature after having done the upgrade?
    > It seems that Bug #5165 (https://www.illumos.org/issues/5165) is still in there.

    yep

    zdb is intended for debugging and isn't guaranteed to run successfully on imported
    pools. There is likely some other way to get the info your looking for... so what are
    you looking for?
     -- richard

    >
    > Regards,
    >
    > R
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    > OmniOS-discuss at lists.omniti.com
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