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Subject: Re: zd1211rw (2.6.22 sparc64): unaligned access (do_rx)
From: Johannes Berg <johannes@sipsolutions.net>
To: David Miller <davem@davemloft.net>
Cc: shaddy_baddah@hotmail.com, linux-wireless@vger.kernel.org,
	Jean Tourrilhes <jt@hpl.hp.com>, Daniel Drake <dsd@gentoo.org>
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Date: Mon, 19 Nov 2007 16:03:02 +0100
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> > The first noticeable problem is when using iwconfig on the device. I=20
> > cannot set a key for the device, and a query of the configuration alway=
s=20
> > claims that the "<encryption key is too long>".
>=20
> Likely some wireless ioctl compat layer bug in the kernel.

Is this 32/64 interop? The kernel has never been fixed and never will
be. New wireless tools should "support" this, but imnsho you're *much*
better off compiling 64-bit wireless tools.

> > If I try to scan for APs using iwlist, I get one AP listed, before a bu=
s=20
> > error occurs. This of course, does not suggest that the problem is with=
=20
> > the driver, but I mention it for the record.
>=20
> This is an unaligned data access in the userland tools.
> Try to catch it with GDB and give us ths backtrace.

For Jean.

> > Whilst the device is up, I continually get console messages like those =
I=20
> > have inlined below:
> >=20
> > Kernel unaligned access at TPC[100ee4d4] do_rx+0x244/0x614 [zd1211rw]
> > Kernel unaligned access at TPC[100ee4e8] do_rx+0x258/0x614 [zd1211rw]
> > Kernel unaligned access at TPC[100ee4cc] do_rx+0x23c/0x614 [zd1211rw]
>=20
> These are unaligned data accesses in the kernel driver.

For Daniel.

johannes

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