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Date:      Fri, 10 Aug 2012 09:31:52 -0400
From:      John Baldwin <jhb@FreeBSD.org>
To:        Mike Tancsa <mike@sentex.net>
Cc:        Garrett Cooper <yanegomi@gmail.com>, current@freebsd.org
Subject:   Re: [PATCH] Add locking to twe(4) so it no longer uses Giant
Message-ID:  <50250D48.6020101@FreeBSD.org>
In-Reply-To: <502425C0.5070303@sentex.net>
References:  <201208031418.57941.jhb@freebsd.org> <201208031726.03652.jhb@freebsd.org> <502121F5.4020705@sentex.net> <201208080727.45595.jhb@freebsd.org> <5022B252.30606@sentex.net> <5023AB9D.5070608@sentex.net> <5023B824.40405@FreeBSD.org> <5023C9A6.9070502@sentex.net> <5023F199.1090201@FreeBSD.org> <50240F5F.6000702@sentex.net> <502425C0.5070303@sentex.net>

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On 8/9/12 5:04 PM, Mike Tancsa wrote:
> Start up the tw_cli client
> 
> 0{offsite2}# tw_cli
> //offsite2> show
> 
> Ctl   Model        (V)Ports  Drives   Units   NotOpt  RRate   VRate  BBU
> ------------------------------------------------------------------------
> c0    9650SE-2LP   2         2        1       0       1       1      -
> 
> 
> //offsite2> exit
> 0{offsite2}# ls -l /dev/tw*
> crw-------  1 root  operator  -   0,  37 Aug  9 16:58 /dev/twa0
> crw-r-----  1 root  operator  -   0, 174 Aug  9 17:00 /dev/twed0
> 0{offsite2}#
> 
> 
> It then disappears ?!

Bizarre, it seems to disappear while tw_cli is running?  I'm curious if
'rm -W /dev/twe0' brings it back?

If so, it might be interesting to see a ktrace of tw_cli.

-- 
John Baldwin



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