Category Archives: Opinion

NVIDIA – New Driver – Still Broken With 4.16..

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NVIDIA have released a new driver – 390.42 – and brief details are here:  http://www.nvidia.com/Download/driverResults.aspx/131853/en-us This still fails with Kernel 4.16 (tested with 4.16-rc5): ………………… ld -r -o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-390.42/kernel/nvidia-modeset/nv-modeset-interface.o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-390.42/kernel/nvidia-modeset/nvidia-modeset-linux.o Building modules, stage 2. MODPOST 4 modules WARNING: “swiotlb_map_sg_attrs” [/home/rgadsdon/kernel/NVIDIA-Linux-x86_64-390.42/kernel/nvidia.ko] undefined! I have had various VMware problems with the 390.xx series of drivers, and so will be … Continue reading →

NVIDIA – Possible Fix for Kernel 4.16..

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Thanks to the efforts of mlau on the NVIDIA Devtalk Forum, there is a possible fix for the swiotlb issue with Kernel 4.16..     See https://devtalk.nvidia.com/default/topic/1030082/linux/kernel-4-16-rc1-breaks-latest-drivers-unknown-symbol-swiotlb_map_sg_attrs-/ for details.. For NVIDIA driver 384.111, I had to increment all the nv–linux.h patch line number references by 100 (so ‘…@@ –1209,6 +1209,7 @@… becomes …@@ –1309,6 +1309,7 @@..’ and ‘..@@ -1251,7 … Continue reading →

NVIDIA – Kernel 4.16 Issues – Update..

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An update on the ”Unknown symbol swiotlb_map_sg_attrs” issue with Kernel 4.16-rc and the latest NVIDIA drivers (384.111 and 390.25).. From more testing done after I posted brief details on the NVIDIA Forum, it would appear that – as is sometimes the case – this one issue may have been masking further problems..   See https://devtalk.nvidia.com/default/topic/1030082/linux/kernel-4-16-rc1-breaks-latest-drivers-unknown-symbol-swiotlb_map_sg_attrs-/ for more info.. … Continue reading →

Kernel – 4.15 Final, at Last..

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Kernel 4.15 is – finally – released, and an overview of changes since -rc9 is here:  http://lkml.iu.edu/hypermail/linux/kernel/1801.3/02794.html The latest NVIDIA drivers – 384.111 and 390.12 – compile and load OK, and VMware 14.1.1 is also OK. It is worth mentioning that , although the final release was delayed due to more work on PTI mitigation etc,  this … Continue reading →

IA64 – The Gentoo saga.. Kernel 4.15-rc9

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After a lot of patience(!) I now have a much-hacked version of Gentoo running on the HP RX2600, and have just updated the kernel to 4.15-rc9: ……………… [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. This is rgia64.unknown_domain (Linux ia64 4.15.0-rc9) 19:42:44 root@rgia64 ~ # uname -a Linux rgia64 4.15.0-rc9 #1 … Continue reading →

NVIDIA – Two New Drivers, OK with 4.14.12-rc1 and 4.15-rc6..

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Thanks to zezaocapoeia, for spotting the newly released NVIDIA Beta driver 390.12 ( see http://www.nvidia.com/download/driverResults.aspx/128743/en-us )    There is also a new version of the ‘long lived branch’ series – 384.111. I have tested these with Kernel 4.14.12-rc1 and 4.15-rc6, and they both compile and load/run OK.    In this case, NVIDIA has fixed their GPL error with recent … Continue reading →

Kernel – 4.14.11 ‘Final’ Breaks NVIDIA 384.98 and 387.34 – GPL Error..

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I had previously tested Kernel 4.14.11-rc1 with the 4.14.9+-patched NVIDIA driver 384.98, and that was OK: ………………….. ld -r -o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-384.98-41410/kernel/nvidia-modeset/nv-modeset-interface.o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-384.98-41410/kernel/nvidia-modeset/nvidia-modeset-linux.o Building modules, stage 2. MODPOST 4 modules CC /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-384.98-41410/kernel/nvidia-drm.mod.o LD [M] /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-384.98-41410/kernel/nvidia-drm.ko CC /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-384.98-41410/kernel/nvidia-modeset.mod.o LD [M] /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-384.98-41410/kernel/nvidia-modeset.ko CC /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-384.98-41410/kernel/nvidia-uvm.mod.o LD [M] /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-384.98-41410/kernel/nvidia-uvm.ko CC /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-384.98-41410/kernel/nvidia.mod.o LD [M] /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-384.98-41410/kernel/nvidia.ko make[2]: Leaving directory ‘/usr/src/linux-4.14.11-rc1’ make[1]: Leaving directory ‘/usr/src/linux-4.14.11-rc1’ … Continue reading →

Kernel – Urgent Changes in Latest Versions, to Fix Intel CPU Security..

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Apparently, there has been a major security defect discovered in Intel CPUs, and full details have been embargoed until early-January, but there is a comprehensive article in The Register, here:  https://www.theregister.co.uk/2018/01/02/intel_cpu_design_flaw/ The Linux Kernel devs have been working to provide a workaround, as – apparently – there is no other practical solution: https://lkml.org/lkml/2017/12/4/709 The article does hint … Continue reading →

Kernel – 4.14.11-rc1 Still breaks NVIDIA, and Won’t be Fixed?

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Just tried the ‘stable-review’ patch for the ‘stable’ Kernel – 4.14.11-rc1, and the same NVIDIA problem is there, and it seems the kernel devs won’t do anything: http://lkml.iu.edu/hypermail/linux/kernel/1712.3/02608.html So – it seems the patch is now a permanent requirement for all subsequent 4.14 releases..  (see https://rglinuxtech.com/?p=2168 ).. And… It seems the unwritten rule of ‘don’t break stuff … Continue reading →

Kernel – 4.14.10 Still breaks NVIDIA!

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Just updated the test system to Kernel 4.14.10, and was ‘somewhat dismayed‘ – to put it politely – that the NVIDIA breakage introduced in 4.14.9 is still there! ………… /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-384.98/kernel/nvidia-uvm/uvm8_va_block.c: In function ‘block_cpu_fault_locked’: /usr/src/linux-4.14.10/arch/x86/include/asm/processor.h:826:39: error: implicit declaration of function ‘task_stack_page’; did you mean ‘task_stack_vm_area’? [-Werror=implicit-function-declaration] unsigned long __ptr = (unsigned long)task_stack_page(task); \ ^ /usr/src/linux-4.14.10/arch/x86/include/asm/processor.h:900:26: note: in expansion … Continue reading →