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List:       freebsd-fs
Subject:    zdb crash
From:       Ståle Kristoffersen <staale () kristoffersen ! ws>
Date:       2010-05-19 19:01:08
Message-ID: 20100519190108.GA41394 () putsch ! kolbu ! ws
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As I posted about a while ago I had memory corruption, after fixing the
problem I ran a scrub that found a few errors that I fixed. I then started
zdb -cvv to check the metadata. Thats 8 days ago.
It didn't print out anything, just consumed 600MB of memory and 5% of the
cpu.
This morning I saw that it had crashed:
# zdb -cvv media

Traversing all blocks to verify checksums and verify nothing leaked ...
zdb_blkptr_cb: Got error 86 reading <441, 8198, 0, 1ff51>  -- skipping
zdb_blkptr_cb: Got error 86 reading <447, 0, 1, 0>  -- skipping
error: zfs: freeing free segment (offset=4372277157888 size=8192)
[1]    16661 abort      zdb -cvv media

And in the log file I saw:
pid 16661 (zdb), uid 0: exited on signal 6

I take it something is wrong, but what? And how do I fix it?
The file system seems to be working great.

-- 
Ståle Kristoffersen
staalebk@ifi.uio.no
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