upgrade to 10 for zfs ?

Paul Kraus paul at kraus-haus.org
Wed Aug 6 22:45:27 UTC 2014

On Aug 6, 2014, at 9:54, Albert Shih <Albert.Shih at obspm.fr> wrote:

> Since we using zfs send/received from a another server I got daily a zfs
> core dump. I failed to find which process make this core-dump but it's
> definitvly zfs : 
> pid 23943 (zfs), uid 0: exited on signal 6 (core dumped)
> pid 70462 (zfs), uid 0: exited on signal 6 (core dumped)
> pid 71042 (zfs), uid 0: exited on signal 6 (core dumped)
> I check every zfs file system and don't find any corup data. 
> One of the zfs sender is running FreeBSD 10 the other linux/Debian. 

Start by halting the zfs send / zfs recv from one of the two senders. See if you still get the core dump. Since zfs send is based on a snapshot, just make sure you do not remove the snapshot. Then restart the first and a stop the second.

In other words, determine for sure which of the two zfs send hosts is sending the stream that is crashing zfs. If the zfs send from the FreeBSD 10 box is causing the crash, then updating to 10 is likely to fix the problem. If the cause is the Linux box, then all bets are off as to whether updating will help.

Paul Kraus
paul at kraus-haus.org

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