Date: Mon, 1 Dec 2003 22:23:12 -0500 (EST) From: Robert Watson <rwatson@freebsd.org> To: Thomas Moestl <t.moestl@tu-bs.de> Cc: sparc@freebsd.org Subject: Re: panic: trap: memory address not aligned in ata_prtdev() with Nov 18 GENERIC Message-ID: <Pine.NEB.3.96L.1031201222010.57038H-100000@fledge.watson.org> In-Reply-To: <20031201120923.GA3276@timesink.dyndns.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Mon, 1 Dec 2003, Thomas Moestl wrote: > This can happen when an ATA operation times out, and is caused by an > access to a freed structure. I have attached a workaround; IIRC sos is > developing a more complete fix for this. > > ISTR the timeouts were caused by the fact that Blade 100s come with > ATA66-capable disks and controllers, but a non-ATA66 (40 pin) cable, and > that for some reason the driver check to catch this situation did not > work. I am not seeing this on my machine because I replaced the cable > long ago when I added another disk. > > Can you confirm that your box does only have a 40 pin cable? Didn't get a chance to open up the box today, however, I did apply the patch. It doesn't panic, ... but it does now hang solid. FreeBSD/sparc64 (ray.rv.nailabs.com) (screen) login: ad0: WARNING - WRITE_DMA recovered from missing interrupt ad0: WARNING - READ_DMA recovered from missing interrupt <hang> I'll reset the box and rebuild the kernel with BREAK_TO_DEBUGGER, assuming I can keep it up that long. Robert N M Watson FreeBSD Core Team, TrustedBSD Projects robert@fledge.watson.org Senior Research Scientist, McAfee Research
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.NEB.3.96L.1031201222010.57038H-100000>