DragonFly bugs List (threaded) for 2009-03
DragonFly BSD
DragonFly bugs List (threaded) for 2009-03
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Re: [issue1325] ddb stops responding after resizing terminal window of vkernel


From: Joe Talbott <josepht@xxxxxxxxxx>
Date: Sat, 28 Mar 2009 21:50:42 -0400
Mail-followup-to: "Stathis Kamperis (via DragonFly issue tracker)" <sinknull@crater.dragonflybsd.org>, bugs@crater.dragonflybsd.org

On Sun, Mar 29, 2009 at 01:14:27AM +0000, Stathis Kamperis (via DragonFly issue tracker) wrote:
> 
> Stathis Kamperis <ekamperi@gmail.com> added the comment:
> 
> : Very odd.  I wonder if the terminal program you are using has
> : something to do with it.  Are you using an xterm or something
> : else?  Try using an xterm if you aren't and see if it still
> : occurs.
> I'm using xterm.
> 
> Anyway, it's not that serious. I'm going to investigate it a bit myself. In the
> meantime if anyone else can try to reproduce it, it would be great.

I get the same freeze.  It's looping in lwkt_send_ipiq3() inside this
while loop:

        while (ip->ip_windex - ip->ip_rindex > MAXCPUFIFO / 4) {
            KKASSERT(ip->ip_windex - ip->ip_rindex != MAXCPUFIFO - 1);
            lwkt_process_ipiq();
        }

I haven't yet tried Matt's debug patch.  I don't get the freeze
immediately only after the 8th time that read() in vconsgetc() is
interrupted.  I'm running in xterm.

Joe 



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