gmirror crash writing to disk? Or is it su+j crash?

Zaphod Beeblebrox zbeeble at
Mon Sep 2 07:53:29 UTC 2013

The first one (kern.geom.transient_map_retries) causes the system to wedge.

The second one (default is 180, I doubled to 360) causes the system to
crash but not dump.

So... neither fixes the problem.

On Sat, Aug 31, 2013 at 5:27 AM, Edward Tomasz Napierała
<trasz at>wrote:

> Wiadomość napisana przez Zaphod Beeblebrox <zbeeble at> w dniu 31
> sie 2013, o godz. 00:49:
> > Because someone said that there would be no logging of unerlying ATA
> errors without verbose, I rebooted with verbose and tried the same make -j4
> again... and here is the relatively similar core.txt.5
> >
> >
> >
> > Looking at it, gmirror is dropping the same error and the underlying
> hardware is not causing the error...
> Let me quote Konstantin:
> > It is either an exhaustion of the transient map, or a deadlock.
> > For the first, setting kern.geom.transient_map_retries to 0 could help.
> > For the second, the count of the transient buffers must be increased,
> > by kern.bio_transient_maxcnt loader tunable.
> Could you try both and tell which one of them fixed the problem?  Thanks!

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