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From: "H. J. Lu" <hjl@lucon.org>
To: linux kernel <linux-kernel@vger.kernel.org>,
	linux ia64 kernel <linux-ia64@vger.kernel.org>
Subject: Unaligned kernel access in crypto/sha1.c
Date: Thu, 16 Sep 2004 23:16:38 +0000	[thread overview]
Message-ID: <20040916231638.GA32514@lucon.org> (raw)

I got

Sep 16 15:45:32 gnu-2 kernel: kernel unaligned access to
0xa0000002001c008e, ip=0xa0000001002135e0
Sep 16 15:45:37 gnu-2 kernel: kernel unaligned access to
0xa0000002002d005e, ip=0xa0000001002135e0
Sep 16 15:45:37 gnu-2 kernel: kernel unaligned access to
0xa0000002002d006e, ip=0xa0000001002135e0
Sep 16 15:45:37 gnu-2 kernel: kernel unaligned access to
0xa0000002002d007e, ip=0xa0000001002135e0
Sep 16 15:45:37 gnu-2 kernel: kernel unaligned access to
0xa0000002002d008e, ip=0xa0000001002135e0

on ia64 from sha1_transform in crypto/sha1.c:

/* Hash a single 512-bit block. This is the core of the algorithm. */
static void sha1_transform(u32 *state, const u8 *in)
{
        u32 a, b, c, d, e;
        u32 block32[16];
                                                                                
        /* convert/copy data to workspace */
        for (a = 0; a < sizeof(block32)/sizeof(u32); a++)
          block32[a] = be32_to_cpu (((const u32 *)in)[a]);
				     ^^^^^^^^^^^^^^^^
				 This may not be aligned for u32 on ia64.


H.J.


WARNING: multiple messages have this Message-ID (diff)
From: "H. J. Lu" <hjl@lucon.org>
To: linux kernel <linux-kernel@vger.kernel.org>,
	linux ia64 kernel <linux-ia64@vger.kernel.org>
Subject: Unaligned kernel access in crypto/sha1.c
Date: Thu, 16 Sep 2004 16:16:38 -0700	[thread overview]
Message-ID: <20040916231638.GA32514@lucon.org> (raw)

I got

Sep 16 15:45:32 gnu-2 kernel: kernel unaligned access to
0xa0000002001c008e, ip=0xa0000001002135e0
Sep 16 15:45:37 gnu-2 kernel: kernel unaligned access to
0xa0000002002d005e, ip=0xa0000001002135e0
Sep 16 15:45:37 gnu-2 kernel: kernel unaligned access to
0xa0000002002d006e, ip=0xa0000001002135e0
Sep 16 15:45:37 gnu-2 kernel: kernel unaligned access to
0xa0000002002d007e, ip=0xa0000001002135e0
Sep 16 15:45:37 gnu-2 kernel: kernel unaligned access to
0xa0000002002d008e, ip=0xa0000001002135e0

on ia64 from sha1_transform in crypto/sha1.c:

/* Hash a single 512-bit block. This is the core of the algorithm. */
static void sha1_transform(u32 *state, const u8 *in)
{
        u32 a, b, c, d, e;
        u32 block32[16];
                                                                                
        /* convert/copy data to workspace */
        for (a = 0; a < sizeof(block32)/sizeof(u32); a++)
          block32[a] = be32_to_cpu (((const u32 *)in)[a]);
				     ^^^^^^^^^^^^^^^^
				 This may not be aligned for u32 on ia64.


H.J.


             reply	other threads:[~2004-09-16 23:16 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-09-16 23:16 H. J. Lu [this message]
2004-09-16 23:16 ` Unaligned kernel access in crypto/sha1.c H. J. Lu
2004-09-18  5:11 ` Andrew Morton
2004-09-18  5:11   ` Andrew Morton
2004-09-20 18:16   ` H. J. Lu
2004-09-20 18:16     ` H. J. Lu
2004-09-20 18:35     ` Andrew Morton
2004-09-20 18:35       ` Andrew Morton

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