[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] DMA trouble with current xen-sparse
On Mon, Nov 07, 2005 at 04:28:59PM -0500, Stephen C. Tweedie wrote: > Hi, > > On Fri, 2005-11-04 at 14:50 +0000, Ian Pratt wrote: > > > > Sure, took a bit of time to recompile the kernel (I didn't do > > > this for years) and it crashed as expected, here are the info: > > > > > > ptr: f160ed8e 1514 > > > > > > the size looks a full ethernet frame, i.e. 1500 of payload, 2 > > > ethernet addresses and the 2bytes for the ethernet type, that > > > looks kosher to me but clearly it is not aligned. > > > > Please can you try using either our -xen or -xen0 kernel config. I > > strongly suspect there's something in your config that is breaking this > > for you, just not sure what. > > I just tried to build it; it would not boot. That was building the > 2.6.12 xen-sparse w/ gcc4; retrying with gcc32 now. > > But I suspect that the problem is CONFIG_SLAB_DEBUG. That sets up slab > redzoning which checks for buffer overruns. One consequence is that Just to confirm that CONFIG_SLAB_DEBUG is the one exposing the issue. I recompiled the exact same kernel with just that option turned off and the tg3 driver does not seems to hang anymore. Daniel -- Daniel Veillard | Red Hat http://redhat.com/ veillard@xxxxxxxxxx | libxml GNOME XML XSLT toolkit http://xmlsoft.org/ http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/ _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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