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From: erik quanstrom <quanstro@coraid.com>
To: 9fans@9fans.net
Subject: Re: [9fans] Race condition in /sys/src/9/pc/trap.c?
Date: Fri, 31 Jul 2009 14:00:25 -0400	[thread overview]
Message-ID: <64332bc783f3dc7dffc16c1266fefea3@coraid.com> (raw)
In-Reply-To: <f390245ec5802e1703b4bd6a6b15a6c3@gmx.de>

> process1:
> 	still in kernel:
> 		memmove(buf, ...)
> 		*fault*
> 		trap()
> 			fault386()
> 				fault() => -1
> 				if(!user){
> 					panic()
> 					*panic*
> 				}
> 				...
> 				postnote()

could you be more specific.  what is your test program,
where is it crashing (if you know), and what is the panic
message, if any?  i must be dense, but i'm confused by
your process diagram.

- erik



  reply	other threads:[~2009-07-31 18:00 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-30  4:03 Matthew J Jones
2009-07-30 11:27 ` erik quanstrom
2009-07-30 14:25   ` Elizabeth Jones
2009-07-30 14:37     ` Sape Mullender
2009-07-30 15:01       ` cinap_lenrek
2009-07-30 15:24         ` cinap_lenrek
2009-07-30 15:17       ` cinap_lenrek
2009-07-30 15:54         ` Charles Forsyth
2009-07-31 13:07           ` Charles Forsyth
2009-07-31 13:28             ` Richard Miller
2009-07-31 17:13             ` cinap_lenrek
2009-07-31 18:00               ` erik quanstrom [this message]
2009-07-31 18:08                 ` Devon H. O'Dell
2009-07-31 18:18                   ` erik quanstrom
2009-07-31 18:35                     ` Devon H. O'Dell
2009-07-31 21:52                 ` cinap_lenrek
2009-07-31 19:31               ` Charles Forsyth
2009-07-31 19:40                 ` erik quanstrom
2009-07-31 20:41                   ` Charles Forsyth
2009-07-30 15:20       ` erik quanstrom
2009-07-30 14:39     ` erik quanstrom

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