From: Suresh Siddha <suresh.b.siddha@intel.com>
To: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Wolfgang Walter <wolfgang.walter@stwm.de>,
Herbert Xu <herbert@gondor.apana.org.au>,
"H. Peter Anvin" <hpa@zytor.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@elte.hu>,
"viro@ZenIV.linux.org.uk" <viro@zeniv.linux.org.uk>,
"vegard.nossum@gmail.com" <vegard.nossum@gmail.com>
Subject: Re: Kernel oops with 2.6.26, padlock and ipsec: probably problem with fpu state changes
Date: Sat, 9 Aug 2008 11:54:13 -0700 [thread overview]
Message-ID: <20080809185412.GI13158@linux-os.sc.intel.com> (raw)
In-Reply-To: <20080809181219.GF13158@linux-os.sc.intel.com>
On Sat, Aug 09, 2008 at 11:12:19AM -0700, Suresh Siddha wrote:
> In this padlock case with the patch, we may encounter a nested
> kernel_fpu_begin() and end()
> but this is ok, as the padlock is not actually touching fpu/sse registers.
I take this back. kernel_fpu_end() is unconditionally doing stts(). So,
nesting of kernel_fpu_begin/end() is not ok.
next prev parent reply other threads:[~2008-08-09 18:54 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-17 14:53 Kernel oops with 2.6.26 and ipsec (Was: Re: IPSEC in 2.6.25 causes stalled connections) Wolfgang Walter
2008-07-17 20:42 ` Kernel oops with 2.6.26 and ipsec Wolfgang Walter
[not found] ` <200807301411.01622.wolfgang.walter@stwm.de>
[not found] ` <20080806103354.GA31623@gondor.apana.org.au>
2008-08-06 17:33 ` Kernel oops with 2.6.26, padlock and ipsec: probably problem with fpu state changes Wolfgang Walter
2008-08-06 20:14 ` Suresh Siddha
2008-08-06 21:21 ` Suresh Siddha
2008-08-07 0:38 ` Wolfgang Walter
2008-08-08 8:44 ` Wolfgang Walter
2008-08-08 18:31 ` Vegard Nossum
2008-08-07 16:23 ` Wolfgang Walter
2008-08-08 10:36 ` Wolfgang Walter
2008-08-08 18:53 ` Suresh Siddha
2008-08-08 19:01 ` H. Peter Anvin
2008-08-08 19:19 ` Wolfgang Walter
2008-08-08 23:11 ` Suresh Siddha
2008-08-09 0:38 ` Herbert Xu
2008-08-09 1:23 ` Herbert Xu
2008-08-09 1:54 ` Wolfgang Walter
2008-08-09 2:16 ` Herbert Xu
2008-08-09 3:09 ` Wolfgang Walter
2008-08-09 3:20 ` Herbert Xu
2008-08-09 14:29 ` Herbert Xu
2008-08-09 14:32 ` Herbert Xu
2008-08-09 17:52 ` Suresh Siddha
2008-08-10 5:30 ` Herbert Xu
2008-08-10 5:41 ` H. Peter Anvin
2008-08-11 22:57 ` Suresh Siddha
2008-08-09 17:48 ` Suresh Siddha
2008-08-09 1:28 ` Wolfgang Walter
2008-08-09 13:31 ` Herbert Xu
2008-08-09 14:37 ` Herbert Xu
2008-08-09 15:14 ` Wolfgang Walter
2008-08-09 15:57 ` Wolfgang Walter
2008-08-09 16:10 ` H. Peter Anvin
2008-08-09 17:02 ` Wolfgang Walter
2008-08-09 18:52 ` Suresh Siddha
2008-08-09 19:37 ` Suresh Siddha
2008-08-09 22:59 ` Wolfgang Walter
2008-08-10 3:05 ` Herbert Xu
2008-08-11 19:01 ` Suresh Siddha
2008-08-11 19:22 ` Ingo Molnar
2008-08-11 19:24 ` H. Peter Anvin
2008-08-11 20:19 ` Suresh Siddha
2008-08-12 0:39 ` Herbert Xu
2008-08-12 0:42 ` H. Peter Anvin
2008-08-12 0:46 ` Herbert Xu
2008-08-12 0:48 ` H. Peter Anvin
2008-08-12 0:52 ` Herbert Xu
2008-08-12 0:38 ` Wolfgang Walter
2008-08-12 11:43 ` Wolfgang Walter
2008-08-12 12:02 ` Herbert Xu
2008-08-12 18:28 ` Suresh Siddha
2008-08-12 23:40 ` Herbert Xu
2008-08-09 18:12 ` Suresh Siddha
2008-08-09 18:54 ` Suresh Siddha [this message]
2008-08-09 16:05 ` H. Peter Anvin
2008-08-09 18:14 ` Suresh Siddha
2008-08-10 0:29 ` Herbert Xu
2008-08-10 1:56 ` Wolfgang Walter
2008-08-10 1:59 ` Herbert Xu
2008-08-09 17:59 ` Suresh Siddha
2008-08-10 1:40 ` Herbert Xu
2008-08-09 1:49 ` Herbert Xu
2008-08-09 1:59 ` H. Peter Anvin
2008-08-09 2:43 ` Wolfgang Walter
2008-08-09 3:30 ` H. Peter Anvin
2008-08-09 10:50 ` Wolfgang Walter
2008-08-08 19:09 ` Wolfgang Walter
2008-08-08 19:32 ` Suresh Siddha
2008-08-08 23:10 ` Wolfgang Walter
2008-08-08 23:15 ` Suresh Siddha
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