From: Christoph Hellwig <hch@infradead.org>
To: Badari Pulavarty <pbadari@us.ibm.com>
Cc: akpm@osdl.org, lkml <linux-kernel@vger.kernel.org>
Subject: Re: 2.6.15-rc1-mm1 panic in ptrace_check_attach()
Date: Fri, 18 Nov 2005 18:07:43 +0000 [thread overview]
Message-ID: <20051118180743.GA3708@infradead.org> (raw)
In-Reply-To: <1132336600.24066.179.camel@localhost.localdomain>
On Fri, Nov 18, 2005 at 09:56:40AM -0800, Badari Pulavarty wrote:
> Hi Andrew,
>
> I am not sure if its already reported. I get panic in
> ptrace_check_attach() while trying to run UML on 2.6.15-rc1-mm1.
>
> Going to try 2.6.15-rc1-mm2 now.
Looks like 2.6.15-rc1-mm1 has total crap in ptrace_get_task_struct
(and it looks like my fault because I sent out a wrong patch).
The patch below should fix it:
Index: linux-2.6/kernel/ptrace.c
===================================================================
--- linux-2.6.orig/kernel/ptrace.c 2005-11-18 10:25:35.000000000 +0100
+++ linux-2.6/kernel/ptrace.c 2005-11-18 10:25:54.000000000 +0100
@@ -459,7 +459,7 @@
read_unlock(&tasklist_lock);
if (!child)
return ERR_PTR(-ESRCH);
- return 0;
+ return child;
}
#ifndef __ARCH_SYS_PTRACE
next prev parent reply other threads:[~2005-11-18 18:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-18 17:56 Badari Pulavarty
2005-11-18 18:07 ` Christoph Hellwig [this message]
2005-11-18 18:17 ` Badari Pulavarty
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