Category Archives: kernel

NVIDIA – Patch for Kernel 5.14-rc. Support..

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Thanks (again) to Joan Bruguera, there is a patch available for NVIDIA driver 465.31, at https://gist.github.com/joanbm/144a965c36fc1dc0d1f1b9be3438a368 I have tested this with the latest beta driver – 470.42.01 – and kernel 5.14-rc1, and it does apply OK (with some offsets): …… patching file a/kernel/common/inc/nv-time.h Hunk #2 succeeded at 215 (offset 9 lines). patching file a/kernel/nvidia-drm/nvidia-drm-drv.c Hunk #2 succeeded … Continue reading →

Kernel – 5.14-rc1 – OK with Patched VMware, Breaks NVIDIA..

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Kernel 5.14-rc1 has been released, and brief details are here:   http://lkml.iu.edu/hypermail/linux/kernel/2107.1/02943.html The latest VMware 16.1.2 patch includes a fix for 5.14-rc, and compiles and runs OK (tested with 5.14-rc1).   Find it at:  https://github.com/mkubecek/vmware-host-modules/tree/workstation-16.1.2 NVIDIA 470.42.01 compile failed: …………. /home/rgadsdon/NVIDIA-Linux-x86_64-470.42.01/kernel/common/inc/nv-time.h: In function ‘nv_sleep_ms’: /home/rgadsdon/NVIDIA-Linux-x86_64-470.42.01/kernel/common/inc/nv-time.h:217:18: error: ‘struct task_struct’ has no member named ‘state’; did you mean ‘__state’? 217 | … Continue reading →

Kernel – 5.13 is Out. OK with latest NVIDIA, and VMware (Patched..)

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Kernel 5.13 has been released, and brief details are here:   http://lkml.iu.edu/hypermail/linux/kernel/2106.3/02627.html As expected, the latest NVIDIA (470.42.01) and VMware 16.1.2 (patched) compile and load/run OK..     The latest VMware patches (vmmon/vmnet) can be found here:  https://github.com/mkubecek/vmware-host-modules/tree/workstation-16.1.2    ‘New’ releases of VMware sometimes compile OK with the latest kernel, without these, but the patched code typically compiles more cleanly… Robert … Continue reading →

NVIDIA – New Driver 465.31 – OK with Kernel 5.13..

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NVIDIA have released driver 465.31, and this now compiles OK with Kernel 5.13 (tested with 5.13-rc2)..   Details are here:  https://forums.developer.nvidia.com/t/linux-solaris-and-freebsd-driver-465-31-new-feature-branch-release/178316 ………………………………… ld -r -o /home/rgadsdon/NVIDIA-Linux-x86_64-465.31/kernel/nvidia-modeset/nv-modeset-interface.o /home/r gadsdon/NVIDIA-Linux-x86_64-465.31/kernel/nvidia-modeset/nvidia-modeset-linux.o /home/rgadsdon/NVIDIA-L inux-x86_64-465.31/kernel/nvidia-modeset/nv-kthread-q.o  MODPOST /home/rgadsdon/NVIDIA-Linux-x86_64-465.31/kernel/Module.symvers  CC [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-465.31/kernel/nvidia-drm.mod.o  LD [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-465.31/kernel/nvidia-drm.ko  CC [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-465.31/kernel/nvidia-ib-peermem-stub.mod.o  LD [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-465.31/kernel/nvidia-ib-peermem-stub.ko  CC [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-465.31/kernel/nvidia-modeset.mod.o  LD [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-465.31/kernel/nvidia-modeset.ko  CC [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-465.31/kernel/nvidia-peermem.mod.o  LD [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-465.31/kernel/nvidia-peermem.ko  CC [M] … Continue reading →

ARM64 – Pi 4 USB Problems – And a Messy Fix..

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After some delay, I finally had a ‘good’ cooling solution for my 8GB Pi4, and resumed testing.. The last Kernel version I had running on it was 5.9-rc4, and everything seemed to be working OK (including 8GB of memory recognised). I then updated to 5.11.18, and found that none of the USB ports worked: # dmesg |grep … Continue reading →

NVIDIA – Patch for Kernel 5.13 Support..

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There is now a patch for NVIDIA 465.27 with Kernel 5.13-rc.. at: https://gist.github.com/joanbm/4a9d392e6f2d45c93ef434bda78174e5  – click on ‘Raw’ to download the source.. Thanks (again) to Joan Bruguera for the patch, and Willy Frissen for the notification.. I have tested this with Kernel 5.13-rc1, and the driver now compiles OK, and loads/runs.. Robert Gadsdon.   May 10th 2021. … Continue reading →

Kernel – 5.13-rc1 – OK with patched VMware, Breaks NVIDIA..

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Kernel 5.13-rc1 is out and brief details are here:   http://lkml.iu.edu/hypermail/linux/kernel/2105.1/00457.html VMware 16.1.1 (patched..) compiles and loads OK, but NVIDIA 465.27 compile fails: ……………………………. /home/rgadsdon/NVIDIA-Linux-x86_64-465.27/kernel/nvidia-drm/nvidia-drm-crtc.c: At top level: /home/rgadsdon/NVIDIA-Linux-x86_64-465.27/kernel/nvidia-drm/nvidia-drm-crtc.c:454:23: error: initialization of ‘int (*)(struct drm_plane *, struct drm_atomic_state *)’ from incompatible pointer type ‘int (*)(struct drm_plane *, struct drm_plane_state *)’ [-Werror=incompatible-pointer-types] 454 | .atomic_check = nv_drm_plane_atomic_check, | ^~~~~~~~~~~~~~~~~~~~~~~~~ … Continue reading →

Compiler – Fun with CLANG – Kernel, NVIDIA, and VMware…

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I have been carrying out some preliminary tests to see how feasible it is to compile the Linux Kernel, and NVIDIA drivers, and VMware, using the ‘alternative’ to GCC – CLANG.. The kernel compile is relatively easy, and well documented: # make CC=clang HOSTCC=clang -j8 (for a 4-core system) The compile seems to be slower than GCC, … Continue reading →

NVIDIA – Patch for Kernel 5.12 Support.

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Thanks to Willy Frissen for the info, and joanbm for the patch, which can be found at https://gist.githubusercontent.com/joanbm/7a034ac4b79396c3841040e410ef7e91/raw/b21e792dc0b6f891a4a83d182e0ba9b24b36bd80/nvidia-fix-linux-5.12.patch I have applied this to 460.56, with Kernel 5.12-rc1, and it compiles successfully, and appears to work OK.     Unable to do a longer test, as my 5.12-rc1 system still crashes with a USB error, after the KVM switches out.. … Continue reading →

Kernel – 5.12-rc1 – USB-related Crash..

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After running kernel 5.12-rc1 for short time, it crashed: ……………………………. usb 1-1.1.1.5: USB disconnect, device number 11 usb 1-1.1.1.5.4: USB disconnect, device number 12 cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0 BUG: kernel NULL pointer dereference, address: 0000000000000278 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) – not-present page PGD 0 P4D 0 Oops: 0000 … Continue reading →