Hello, on most HP machines, the 'machveg=dig' parameter is needed for the kdump kernel to avoid problems with the HP ioc. In the original kdump patches, a function ioc_iova_disable() was used, which (as I understand) disabled the IOC before executing the new kernel. However, that function wasn't added to mainline [2]. However, with a 2.6.22-rc kernel, booting into the kdump kernel works surprisingly. I haven't found a fix in the git history that could be responsible. Was there a fix? Or is it just a random result on a machine I tested that it works? Are there any plans to bring back ioc_iova_disable(), or would some automatic kernel code that uses machvec=dig in the kernel without forcing the user to pass an additional command line work? Thanks, Bernhard [1] http://article.gmane.org/gmane.linux.ports.ia64/15192 [2] http://article.gmane.org/gmane.linux.ports.ia64/15147
