Category Archives: compilation

Kernel – GCC 8 Tests – Not Quite Ready…

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I decided to try updating a crash-and-burn test system to Fedora 28 (early-beta..) as this included GCC 8 (currently 8.0.1), to see how well the Kernel (4.16-rc6) compiled.. There were a lot of warnings generated: …………………… CC [M] drivers/rtc/rtc-pcf8523.o CC drivers/usb/core/file.o CC drivers/video/hdmi.o CC [M] drivers/rtc/rtc-pcf8563.o drivers/video/hdmi.c: In function ‘hdmi_spd_infoframe_init’: drivers/video/hdmi.c:171:2: warning: ‘strncpy’ specified bound 8 equals … Continue reading →

Kernel – GCC 8 Tests – Not Quite Ready…

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I decided to try updating a crash-and-burn test system to Fedora 28 (early-beta..) as this included GCC 8 (currently 8.0.1), to see how well the Kernel (4.16-rc6) compiled.. There were a lot of warnings generated: …………………… CC [M] drivers/rtc/rtc-pcf8523.o CC drivers/usb/core/file.o CC drivers/video/hdmi.o CC [M] drivers/rtc/rtc-pcf8563.o drivers/video/hdmi.c: In function ‘hdmi_spd_infoframe_init’: drivers/video/hdmi.c:171:2: warning: ‘strncpy’ specified bound 8 equals … Continue reading →

IA64 – Updated to 4.16-rc3..

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Just updated the HP RX2600 to Kernel 4.16-rc3, and apart from an odd quirk at compile time, all went OK.. ………….. Building modules, stage 2. MODPOST 98 modules GZIP arch/ia64/hp/sim/boot/vmlinux.gz File “./arch/ia64/scripts/unwcheck.py”, line 19 print “Usage: %s FILE” % sys.argv[0] ^ SyntaxError: Missing parentheses in call to ‘print’ make: [arch/ia64/Makefile:78: unwcheck] Error 1 (ignored) ……………… Despite this, … Continue reading →

Kernel – GCC and ‘Retpoline’..

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The recent summary of Kernel 4.15 mentioned the test for ‘compliant’ versions of GCC which fully support the retpoline mitigation, but only gave an example of non-compliance: With GCC 7.2: ~]$ cat /sys/devices/system/cpu/vulnerabilities/spectre_v2  Vulnerable: Minimal generic ASM retpoline I re-created Fedora (Rawhide) GCC 7.3.1 for Fedora 27, and it gives the following, after Kernel 4.15 compilation/boot: ~]$ … 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 – 4.14.9 NVIDIA Saga – Simple Patch, or Wait for 4.14.10..?

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More on the Kernel 4.14.9 NVIDIA breakage..     Basically, code that should have only gone into 4.15-rc found its way into 4.14.9 – which is why the existing 4.15 NVIDIA patch fixed it..     Thanks to dinosaur_ on the NVIDIA forum, there is a simpler patch available:  https://devtalk.nvidia.com/default/topic/1028016/linux/patch-for-compiling-v384-98-modules-with-linux-v4-14-9-/ There is also a 4.14.10-rc1 patch which is supposed to revert … Continue reading →

KERNEL – 4.14.9 Breaks NVIDIA – and a Fix..

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Just updated to Kernel 4.14.9, and normally this should not be anything to cause concern, but this time there has been a significant code change made, that has broken NVIDIA (384.98): ………………… /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-4.14.9/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-4.14.9/arch/x86/include/asm/processor.h:900:26: … 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 →

VMware – Fix for Kernel 4.15-rc1..

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Thanks – again – to mkubecek, there is now a fix for VMware 14.0.0 and Kernel 4.15 – and details are here:   https://github.com/mkubecek/vmware-host-modules/commit/562121d7bc06 The fix involves changes to vmmon-only/linux/driver.c and vmmon-only/linux/hostif.c, and a new file: vmmon-only/include/compat_timer.h .    I have tested this on 4.15-rc1, and now vmmon compiles, and vmware loads/runs, correctly. Robert Gadsdon.  November 27, 2017.

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