[Pkg-xen-devel] aacraid: swiotlb buffer is full (was: how to get debugging output from dom0 kernel)

[lee]

lee <lee at yun.yagibdah.de> writes:

> If there was a way to disable the subsequent messages, I could take a
> picture.  Perhaps I can get output from a serial console if I manage to
> set that up ... or maybe I can actually make it crash instead of having
> to wait ...

Ok, I can't make it crash, but this time it went down with a stream of
messages like


aacraid 000:04:00.0: swiotlb buffer is full (sz: 255 bytes)


This happened with '3.14-0.bpo.1-amd64 #1 SMP Debian 3.14.5-1~bpo70+1
(2014-06-05) x86_64 GNU/Linux'.  This seems to be the most recent kernel
available for Wheezy.  There is some indication at [1] that the problem
/might/ be fixed or doesn't come up in 3.4 kernels.


What should I do:

Make a bug report with this message?  Perhaps the problem is already
fixed?

Get the 3.15.1 kernel source from kernel.org and compile it and try it?
Perhaps that doesn't work with the rest of the system?

I need the server to be stable ...


[1]: http://www.spinics.net/lists/linux-scsi/msg70278.html


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Knowledge is volatile and fluid.  Software is power.