Category Archives: Performance

NVIDIA – New 4XX Driver, OK with Kernel 4.19..

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NVIDIA have version-bumped their driver, and new driver 410.57 is now available, and details are here:  https://www.nvidia.com/Download/driverResults.aspx/138279/en-us Tested with Kernel 4.19-rc4, and this version compiles/loads OK, without any need for a patch.. …………………… ld -r -o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.57/kernel/nvidia-modeset/nv-modeset-interface.o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.57/kernel/nvidia-modeset/nvidia-modeset-linux.o Building modules, stage 2. MODPOST 4 modules CC /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.57/kernel/nvidia-drm.mod.o LD [M] /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.57/kernel/nvidia-drm.ko CC /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.57/kernel/nvidia-modeset.mod.o LD [M] /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.57/kernel/nvidia-modeset.ko CC /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.57/kernel/nvidia-uvm.mod.o … Continue reading →

IA64 – Kernel 4.18-rc2 Boots on HP Itanium2

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Updated the HP Itanium 2 system to Kernel 4.18-rc2, and all appears to be OK..: ……………………….. [ 0.000000] Linux version 4.18.0-rc2 (root@rgia64) (gcc version 6.4.0 (Gentoo 6.4.0 p1.1)) #1 SMP Sat Jun 30 16:13:38 PDT 2018 [ 0.000000] EFI v1.10 by HP: [ 0.000000] efi: SALsystab=0x3fb38000 ACPI 2.0=0x3fb2e000 SMBIOS=0x3fb3a000 HCDP=0x3fb2c000 [ 0.000000] PCDP: v0 at 0x3fb2c000 [ … Continue reading →

Fedora – Fix For Annoying F27 KDE/Dolphin QT Bug..

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The latest version of QT5 on Fedora 27 – qt5-qtbase-5.9.6-1.fc27.x86_64 – produces a very annoying display problem in KDE’s Dolphin file manager, where the window does not resize/reformat correctly, leaving large blank areas at each side: This has been identified as a QT5 bug/regression, and a patch is available, at https://codereview.qt-project.org/#/c/233482/ I have applied this, and Dolphin … Continue reading →

Kernel – 4.18-rc2 is Out – Includes fix for VMware Runtime, OK with Latest Patched VMware and NVIDIA.

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Kernel 4.18-rc2 has been released, and brief details of changes from -rc1 are here:  http://lkml.iu.edu/hypermail/linux/kernel/1806.3/00112.html This includes the cmdline fix, which enables the VMware runtimes to execute correctly.   The VMware 14.1.2 vmmon patch is still required (see http://rglinuxtech.com/?p=2322 ) NVIDIA 390.67 compiles OK, with the nvidia-drm-drv.c patch (see http://rglinuxtech.com/?p=2315 ) Robert Gadsdon.  June 24, 2018. … Continue reading →

VMware – New Version of 4.18-rc1 ‘cmdline’ Patch..

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As expected, there is another version of the cmdline patch for Kernel 4.18-rc1 – this time from Linus himself.. at  http://lkml.iu.edu/hypermail/linux/kernel/1806.2/03011.html I have applied this, and – as with the previous version –  VMware now behaves correctly.. I should mention that is is not a good idea to try to copy/paste patches from a website newsgroup listing, … Continue reading →

Fedora – F28 Annoyances, and Workarounds..

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Running Fedora 28 on the test system, I have encountered the following issues with various applications, and found substitute rpm workarounds..  Usually, these can be installed by downloading them ,and then using # rpm -Uvh……… –force.. Grub-customizer still crashes, but the F27 version works ( grub-customizer-5.0.6-6.fc27.x86_64 ) Wine crashes with some windows apps, and the workaround is … Continue reading →

Kernel – GCC8 / ‘Objtool Warnings’ Patches..

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There are now patches available to deal with the host of ‘objtool‘ warnings when compiling the kernel with GCC8: …………………………….. drivers/video/fbdev/core/fbmem.o: warning: objtool: fb_set_var()+0x209: sibling call from callable instruction with modified stack frame drivers/video/fbdev/core/fbmem.o: warning: objtool: do_remove_conflicting_framebuffers()+0xa6: sibling call from callable instruction with modified stack frame drivers/video/fbdev/core/fbmem.o: warning: objtool: register_framebuffer()+0x14b: sibling call from callable instruction with modified … Continue reading →

GCC – Update to 8.1.1 – Still Gives Kernel Compile Warnings..

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Fedora 28 has GCC 8.1.1 available (currently in ‘updates-testing‘ repo), and I tested this with Kernel 4.17-rc4, to see if there was any improvement in the horde of warnings generated with 8.0.1. In short, there is no real difference: ……………………………… CC security/keys/request_key.o arch/x86/kvm/lapic.o: warning: objtool: kvm_lapic_reg_read()+0x126: sibling call from callable instruction with modified stack frame arch/x86/kvm/lapic.o: warning: … Continue reading →

Fedora – 28 Released, but Fails with GCC 8 and Kernel 4.16…

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Fedora 28 has been released, but this includes GCC 8 (8.0.1) which – currently – is not capable of compiling Kernel 4.16 as-is (tested with 4.16.6): ……………………………. CC /usr/src/linux-4.16.6/tools/objtool/objtool.o CC /usr/src/linux-4.16.6/tools/objtool/libstring.o CC /usr/src/linux-4.16.6/tools/objtool/str_error_r.o ../lib/str_error_r.c: In function ‘str_error_r’: ../lib/str_error_r.c:25:3: error: passing argument 1 to restrict-qualified parameter aliases with argument 5 [-Werror=restrict] snprintf(buf, buflen, “INTERNAL ERROR: strerror_r(%d, %p, %zd)=%d”, … Continue reading →