Category Archives: Hacks

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 →

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 →

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 →

VMware – 14.1.0 released – OK with Kernel 4.14, Still Broken with 4.15, and a Nasty Hack to Fix..

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Just updated to VMware Workstation 14.1.0, and release notes are here:  https://docs.vmware.com/en/VMware-Workstation-Pro/14.0.0/rn/workstation-141-release-notes.html This now works OK with Kernel 4.14 (tested with 4.14.8) but vmmon is still broken with Kernel 4.15 (tested with 4.15-rc4): ……………. /tmp/modconfig-04hK9s/vmmon-only/linux/hostif.c: In function ‘HostIF_InitUptime’: /tmp/modconfig-04hK9s/vmmon-only/linux/hostif.c:1770:4: error: implicit declaration of function ‘init_timer’; did you mean ‘init_timers’? [-Werror=implicit-function-declaration] init_timer(&uptimeState.timer); ^~~~~~~~~~ init_timers /tmp/modconfig-04hK9s/vmmon-only/linux/hostif.c:1771:31: error: assignment from … Continue reading →

ARM64 – Fedora 27, UEFI and Pi3..

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I decided – after some time – to do some more with the Raspberry Pi 3, and set it up as a small network print server.. As there was now an ‘official’ version of Fedora 27 for the Pi3, I decided to use this..   Details are here, and links to aarch64 images are near the bottom of … Continue reading →

NVIDIA – Fix for Kernel 4.15, but GPL Problem – Yet Again..

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Thanks to milhouse, there is a set of two patches available for NVIDIA 384.98 and (legacy) 340.104 with Kernel 4.15-rc1, and details are here:   https://devtalk.nvidia.com/default/topic/1026911/linux/4-15-rc1-patches-for-384-98-and-340-104/ The first patch fixes the compile problems, but the load fails with yet another case of GPL incompatibility: ……………….  Building modules, stage 2. MODPOST 4 modules FATAL: modpost: GPL-incompatible module nvidia-drm.ko uses … Continue reading →

IA64 – An Exercise in Nostalgia..

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Ever since I spent some considerable time promoting HP’s IA64 Linux systems, way back in the early-2000’s, I have always wanted one for myself, and I recently managed to acquire an RX2600 1U server for a very reasonable price, and beef it up with some inexpensive parts from eBay.. The spec – at the moment – is … Continue reading →

VMware – 12.5.8 Released – Still Incompatible..

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There has been a new release of Workstation 12.5 – 12.5.8 – and the – rather vague – release notes are here:  https://docs.vmware.com/en/VMware-Workstation-Pro/12.0/rn/workstation-1258-release-notes.html I tested this with a ‘clean’ install on my cash-and-burn system, and basically, it suffers from the same compatibility problems as 12.5.7.    GCC7, Fedora 26/27, and Kernel 14.x all cause it to fail. # … Continue reading →

Fedora – 26-27 DNF Upgrade Woes, and a Workaround..

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After upgrading four Fedora systems (x86_64) from release 26 to 27, using # dnf system-upgrade download –refresh –releasever=27 –allowerasing –nogpgcheck –best -y, two of these worked OK, but two failed – with a sudden reboot, back to F26 – and no (apparent) error displayed, after # dnf system-upgrade reboot had rebooted the system, and the upgrade process … Continue reading →

VMware – Potential Fix for W/S 14 Performance/Memory Issues..

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I had found that although VMware 14.0.0 installed OK with Kernel 4.13, the runtime performance was rather ‘sluggish’, and others have reported more serious memory issues… There is a patch that may help with this – and thanks to Roke for reporting this, and to mkubecek for the actual patch.. Details are in this posting, on the … Continue reading →