From: Dan Pop <Dan.Pop@cern.ch>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] unaligned access?
Date: Wed, 28 Nov 2001 17:47:33 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590698805554@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590698805553@msgid-missing>
On Wed, 28 Nov 2001, Pereira, D LailaX E wrote:
> HI
> While running the following code,
> define WRITE_CAUSED_SIGBUS_or_SEGV \
> (((*(unsigned long*)scp->sc_ip)>>21)&1)
> ....
> if (WRITE_CAUSED_SIGBUS_or_SEGV){
> ........
> }
> else {
> .........
> }
>
> I get the following error on the "if " statement:
> stress.udp(31438): unaligned access to
> 0x4000000000003541,ip=0x4000000000015fc1
> Please let me know what is wrong with the macro:
> define WRITE_CAUSED_SIGBUS_or_SEGV \
> (((*(unsigned long*)scp->sc_ip)>>21)&1)
scp->sc_ip is not properly aligned for an unsigned long access, i.e.
it is not a multiple of 8.
Dan
next prev parent reply other threads:[~2001-11-28 17:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-28 17:37 [Linux-ia64] unaligned access? Pereira, D LailaX E
2001-11-28 17:47 ` Dan Pop [this message]
2001-11-28 17:56 ` Pereira, D LailaX E
2001-11-28 17:57 ` n0ano
2001-11-28 18:25 ` David Mosberger
2001-11-28 19:18 ` Dan Pop
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