From: Nick Piggin <nickpiggin@yahoo.com.au>
To: "liyu@WAN" <liyu@ccoss.com.cn>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: [Question] Can we release vma that include code when one process is running?
Date: Sun, 18 Sep 2005 18:15:45 +1000 [thread overview]
Message-ID: <432D2231.4040903@yahoo.com.au> (raw)
In-Reply-To: <432A7C0F.8050903@ccoss.com.cn>
liyu@WAN wrote:
>
>
> Sorry, I perhaps didn't said clearly.
>
> As I knwon, if we remove vma from vma tree of task, the SIGSEGV must be
> got!
> but I am not removed them , I just unmapped them. and the SIGSEGV occurs
> some times,
> not alway.
>
> I doublt on it.
>
> Any clearly idea?
>
No clear ideas, no. Are you doing the proper synchronization and
flushing required when unmapping those regions?
If you can post your unmapping code to lkml, someone might be able
to spot a bug in it.
Thanks,
Nick
--
SUSE Labs, Novell Inc.
Send instant messages to your online friends http://au.messenger.yahoo.com
prev parent reply other threads:[~2005-09-18 8:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-15 6:50 [Question] Can we release vma that include code when one process is running? liyu@WAN
2005-09-15 12:46 ` Nick Piggin
2005-09-16 8:02 ` liyu@WAN
2005-09-18 8:15 ` Nick Piggin [this message]
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