What does it mean when zdb -R x:xxx:xxx:g crashes?

[Xin Li]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

On 11/24/14 11:40, Zaphod Beeblebrox wrote:
> So... another barrier in figuring out my zfs problem is that zdb
> crashes when asked to print the gang block header:
> 
> [1:97:397]root at virtual:/vr1/tmp/diag> zdb -AAA -R vr2
> 0:94048dc9000:24000:g Found vdev type: raidz Assertion failed:
> (zio->io_error == 0 || (zio->io_flags & ZIO_FLAG_CANFAIL)), file 
> /usr/src/cddl/lib/libzpool/../../../sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c,
>
> 
line 3297.
> Abort trap (core dumped)
> 
> Now... this trace looks odd to me: there are no bookmarks in the 
> filesystem... neither are there snapshots for this specific
> filesystem.

This is normal, it's part of traverse_visitbp().  What was zio->io_error?

Cheers,
- -- 
Xin LI <delphij at delphij.net>    https://www.delphij.net/
FreeBSD - The Power to Serve!           Live free or die
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.1.2 (FreeBSD)
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=qen3
-----END PGP SIGNATURE-----