On Tue, Jul 17, 2007 at 02:49:08PM +1000, James C. McPherson wrote:
> Stuart Anderson wrote:
> >Running Solaris 10 Update 3 on an X4500 I have found that it is possible
> >to reproducibly block all writes to a ZFS pool by running "chgrp -R"
> >on any large filesystem in that pool.  As can be seen below in the zpool
> >iostat output below, after about 10-sec of running the chgrp command all
> >writes to the pool stop, and the pool starts exclusively running a slow
> >background task of 1kB reads.
> >

...

> >
> >Is this a known issue or should I open a new case with Sun?
> 
> Log a new case with Sun, and make sure you supply
> a crash dump so people who know ZFS can analyze
> the issue.
> 
> You can use <stop-A> sync, <break> sync, or
> 
> reboot -dq
> 

In previous attempts, neither "halt -d" nor reboot (with no arguments)
where able to shutdown the machine. Is "reboot -dq" really a bigger hammer
than "halt -d"?

Sorry to be pedantic, but what is the exact key sequence on a Sun
USB keyboard one should use to force a kernel dump on Solx86?
Since there is no OBP on an X4500 where do I type the sync command?

Thanks.

-- 
Stuart Anderson  [EMAIL PROTECTED]
http://www.ligo.caltech.edu/~anderson
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