https://bugzilla.kernel.org/show_bug.cgi?id=42782 Tango <tango@xxxxxxxxxxxxx> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tango@xxxxxxxxxxxxx --- Comment #12 from Tango <tango@xxxxxxxxxxxxx> 2012-08-29 14:54:38 --- I have this problem as well. In my case it seems to be a regression. My 2.6.37-r4 kernel boots properly and X starts without error. Been trying sense March to get any stable 3.x.x kernel to boot and start X properly. I have had no problems getting them to boot but none would allow me to start X. Attempting to start X produces these errors in demsg. [ 8.368285] nvidia: module license 'NVIDIA' taints kernel. [ 8.368289] Disabling lock debugging due to kernel taint [ 8.382108] vgaarb: device changed decodes: PCI:0000:08:00.0,olddecodes=io+mem,decodes=none:owns=io+mem [ 8.382524] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 295.71 Thu Aug 2 19:22:08 PDT 2012 [ 9.329795] AMD-Vi: Event logged [IO_PAGE_FAULT device=08:00.0 domain=0x0016 address=0x000000041a386200 flags=0x0010] [ 9.329812] AMD-Vi: Event logged [IO_PAGE_FAULT device=08:00.0 domain=0x0016 address=0x00000004147d0000 flags=0x0010] [ 9.329823] AMD-Vi: Event logged [IO_PAGE_FAULT device=08:00.0 domain=0x0016 address=0x00000004147d0040 flags=0x0010] [ 9.329834] AMD-Vi: Event logged [IO_PAGE_FAULT device=08:00.0 domain=0x0016 address=0x0000000000006000 flags=0x0000] [ 9.329843] AMD-Vi: Event logged [IO_PAGE_FAULT device=08:00.0 domain=0x0016 address=0x0000000000006040 flags=0x0000] [ 9.329853] AMD-Vi: Event logged [IO_PAGE_FAULT device=08:00.0 domain=0x0016 address=0x0000000000006080 flags=0x0000] [ 9.329862] AMD-Vi: Event logged [IO_PAGE_FAULT device=08:00.0 domain=0x0016 address=0x00000000000060c0 flags=0x0000] [ 17.341563] NVRM: RmInitAdapter failed! (0x27:0x38:1190) [ 17.341573] NVRM: rm_init_adapter(0) failed Early in the kernel boot process all my kernels were reporting, Please enable the IOMMU option in the BIOS setup This costs you 64 MB of RAM I verified that IOMMU was in fact enabled in my BIOS. So I am not sure if that is just a suggestion or that the kernel isn't detecting the IOMMU settings. After much research I narrowed the problem down to AMD_IOMMU. I can boot my 3.4.9-kernel, (configured and striped to absolute essentials for testing) and start X properly only if I boot it with amd_iommu=off. Kernel command line: root=/dev/sda3 amd_iommu=off video=uvesafb:mtrr:3,ywrap,1280x1024-32@75 splash=verbose,theme:livecd-2007.0 console=tty1 My Linux Distro is Gentoo Portage 2.1.11.9 (default/linux/amd64/10.0, gcc-4.5.4, glibc-2.15-r2, 3.4.9-gentoo x86_64) System uname: Linux-3.4.9-gentoo-x86_64-AMD_Phenom-tm-_II_X6_1100T_Processor-with-gentoo-2.1 -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
