linux-kernel - Re: [PATCH 0/2] ptrace_vm: ptrace for syscall emulation virtual machines

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Date:	Fri, 17 Apr 2009 16:18:23 +0800
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	Américo Wang <xiyou.wangcong@...il.com>
Cc:	Renzo Davoli <renzo@...unibo.it>, linux-kernel@...r.kernel.org,
	Jeff Dike <jdike@...toit.com>,
	user-mode-linux-devel@...ts.sourceforge.net,
	mtk.manpages@...il.com, Roland McGrath <roland@...hat.com>
Subject: Re: [PATCH 0/2] ptrace_vm: ptrace for syscall emulation virtual
	machines

On Tue, Apr 14, 2009 at 12:36:03AM +0800, Américo Wang wrote:
>Anyway, I will test your patch tomorrow, and will send you more
>feedbacks soon.
>

Sorry for the delay.

I applied your 2 patches to linus-tree, compile and run, when I run
the same UML binary inside UML, I got:

Locating the bottom of the address space ... do_syscall_stub : ret =
-13, offset = 1052680, data = 0a98a008
do_syscall_stub: syscall 192 failed, return value = 0xfffffff3,
expected return value = 0x0
 syscall parameters: 0x0 0x1000 0x7 0x11 0x3 0x19c0
Failed to flush page for address 0x0
Killed

I don't have enough time to dig this, would like to have a look at it?

Thanks.

-- 
Live like a child, think like the god.
 
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