On 02/12/2015 04:13 PM, Joerg Roedel wrote: > On Thu, Feb 12, 2015 at 02:37:34PM -0500, Mark Hounschell wrote: >> [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.18.7-lcrs root=/dev/disk/by-id/ata-ST3160815AS_6RACD7A6-part5 splash=verbose showopts video=1600x1200 noresume apm=off vmalloc=256M cma=64M@0-4G audit=0 nohz=on nohz_full=4,5,6,7 rcu_nocbs=4,5,6,7 3 > > Oh, and can you please boot with 'amd_iommu_dump' on the kernel command > line and send me dmesg after boot? > > Thanks, > OK. Attached. BTW when I blacklist the aic7xxx driver [last unloaded: aic7xxx] I can load and unload any module all day long. Thanks Mark