kern/140036: [iwn] [lor] lock order reversal with iwn0_com_lock and iwn0 softc lock

[Benjamin Kaduk]

The following reply was made to PR kern/140036; it has been noted by GNATS.

From: Benjamin Kaduk <kaduk at MIT.EDU>
To: Bernhard Schmidt <bschmidt at techwires.net>
Cc: bug-followup at freebsd.org
Subject: Re: kern/140036: [iwn] [lor] lock order reversal with iwn0_com_lock
 and iwn0 softc lock
Date: Mon, 23 Nov 2009 02:25:35 -0500 (EST)

 On Sun, 22 Nov 2009, Bernhard Schmidt wrote:
 
 > On Sunday 01 November 2009 00:24:59 you wrote:
 >> Indeed, I think I saw a lockup a couple days ago, possibly when
 >> my card had dissociated and was trying to reassociate.
 >>
 >> Thanks for looking into this,
 >
 > Seems like your initial fix for that was actually correct, that lock up you
 > saw there is related to something else. There was an issue with sending null
 > data frames.
 >
 > Can you verify that the LOR is gone with the latest checkout of my repository?
 > Compile instructions:
 > http://forums.freebsd.org/showpost.php?p=47627&postcount=16
 
 I upgraded to today's current (which picked up a number of 
 probably-unrelated changes), and then installed the driver from
 your tree on top of it.
 No LOR on boot, and I'll let you know if I see any lockups.
 
 Thanks,
 
 Ben