----- Original Message -----
From: "Steven Hartland" <kill...@multiplay.co.uk>
To: "Daniel O'Connor" <docon...@gsoft.com.au>
Cc: "freebsd-stable stable" <freebsd-stable@freebsd.org>
Sent: Sunday, October 13, 2013 11:27 PM
Subject: Re: ZFS hanging on too hard
----- Original Message -----
From: "Daniel O'Connor" <docon...@gsoft.com.au>
On 14/10/2013, at 8:44, "Steven Hartland" <kill...@multiplay.co.uk> wrote:
>> root@gateway:~ # zpool export -f backupA
>> load: 0.04 cmd: zpool 1384 [tx->tx_sync_done_cv)] 2.63r 0.00u 0.00s 0% 2804k
>> load: 0.04 cmd: zpool 1384 [tx->tx_sync_done_cv)] 2.79r 0.00u 0.00s 0% 2804k
>> load: 0.04 cmd: zpool 1384 [tx->tx_sync_done_cv)] 2.99r 0.00u 0.00s 0% 2804k
>
> Hmm I guess your going to have to reboot, which is not ideal.
Yeah :(
Also, if I _do_ reboot it hangs on shutdown, the last message is about da0
having
pending buffers..
It rather makes my idea of a zpool on the backup disk a bit risky - if someone
pulls the disk while it's imported then the server would need to be rebooted.
That could mean the underlying issue may be a USB or CAM scsi_da.
You didnt say which OS version your running?
The following may help forcing the shutdown if it is a USB problem, although be
warned you may well loose data in normal operation, so would avoid leaving it
in your case.
hw.usb.no_shutdown_wait=1
Regards
Steve
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