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Re: [Xen-users] Out of SW-IOMMU space for 7222 bytes at device ...: swio
| To: | XEN Users <xen-users@xxxxxxxxxxxxxxxxxxx> |
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| Subject: | Re: [Xen-users] Out of SW-IOMMU space for 7222 bytes at device ...: swiotlb or dom0_mem? |
| From: | Scott Garron <web-xenbugs@xxxxxxxxxxxxxx> |
| Date: | Mon, 04 Aug 2008 12:44:27 -0400 |
| Delivery-date: | Mon, 04 Aug 2008 09:45:08 -0700 |
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Chris Joelly wrote: Erros: Out of SW-IOMMU space for 7222 bytes at device ... i found somwhere on the internet that increasing dom0_mem and swiotlb should do the trick, but thats unfortunately not true for my setup ... What version of Xen and the kernel are you running? This bug was supposedly fixed in April: http://lists.xensource.com/archives/html/xen-changelog/2008-04/msg00008.html... but a similar (or identical) one appears to still have "NEW" status, posted on April 25th. http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1227Regardless of how you set swiotlb, under high I/O load, this bug has the potential to completely eat your storage array (I found out the hard way). As far as I know, it only seems to affect the 3Ware cards on 64-bit systems, running a 64-bit kernel.
3Ware's knowledge base says this about it:
http://www.3ware.com/kb/article.aspx?id=15345
--
Scott Garron
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