Category Archives: Performance

ARM64 – Odroid C2 – Ethernet Fix, at Last..

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Thanks to Jerome Brunet, there is now a fix for the long-standing Ethernet hang problem on the C2..   Details are here:   http://lists.infradead.org/pipermail/linux-amlogic/2016-November/001538.html The patch is an attachment – named ‘attachment.bin‘, and so will need to be renamed to something appropriate..     I applied this to the 4.9-rc3-derived version of the C2 patched kernel, from https://git.kernel.org/cgit/linux/kernel/git/khilman/linux-amlogic.git/log/?h=v4.10/integ..    There is a … Continue reading →

ARM64 – Odroid C2 – Hack to Fix Ethernet Hangs..

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I had been constantly frustrated by the Odroid C2 meson8b-dwmac Ethernet ‘hang’ problem, which has persisted over (at least..) eight different ‘patched kernel’ versions that I have tested..    The network link hung/stopped after a short time at full (1000Mbps) speed, and also – sometimes after a bit longer – at reduced (100Mbps) speed.. The driver does show … Continue reading →

ARM64 – Odroid C2 – New MMC Driver, Ethernet / USB Still Broken..

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After some of the code for the C2 has been removed from various git repositories, there is a new 4.9-rc1-based tree at https://git.kernel.org/cgit/linux/kernel/git/khilman/linux-amlogic.git/?h=v4.10/integ , which now includes the ‘new’ rewritten MMC driver. To select this, choose ‘Amlogic S905/GX* SD/MMC Host Controller support (MMC_MESON_GX)‘ in the kernel config.. …… Fedora 24 (Workstation Edition) Kernel 4.9.0-rc1-c2 on an aarch64 … Continue reading →

Kernel – 4.9-rc1 released – OK with Latest VMware, and NVIDIA 370.28/367.57

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Kernel 4.9-rc1 has been released, and brief details are here: http://lkml.iu.edu/hypermail/linux/kernel/1610.1/03881.html Fedora 25 (Workstation Edition) Kernel 4.9.0-rc1 on an x86_64 (ttyS0) ………….. # uname -a Linux rgtest 4.9.0-rc1 #1 SMP Sat Oct 15 13:42:12 PDT 2016 x86_64 x86_64 x86_64 GNU/Linux Latest VMware (12.5.0) compiled and ran OK.. NVIDIA drivers 367.57 and  370.28 compiled OK.. …. Building modules, … Continue reading →

VMware – New Driver 12.5.0 – OK with Kernel 4.7, and 4.8..

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Updated to the latest VMware Workstation Pro version – 12.5.0, and it compiles OK with kernel.org kernel 4.7 (4.7.3) and also with 4.8 (4.8-rc6). Release notes here:   http://pubs.vmware.com/Release_Notes/en/workstation/12pro/workstation-125-release-notes.html Nice to see that they have actually fixed quite a lot of Linux-related ‘issues’, this time.. Robert Gadsdon.  September 14, 2016 … Continue reading →

ARM64 – Odroid C2 – Boots with Latest ‘Linux-Next’..

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I tried the latest ‘Linux-Next’ version, from https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/log/?id=refs/tags/next-20160913 and the C2 booted OK, but the Ethernet problem still persists.. ……… eth0: device MAC address 00:1e:06:33:13:6e meson6-dwmac c9410000.ethernet eth0: Link is Up – 1Gbps/Full – flow control rx/tx Fedora 24 (Workstation Edition) Kernel 4.8.0-rc6-next-20160913 on an aarch64 (ttyAML0) ………………… # uname -a Linux rgc2 4.8.0-rc6-next-20160913 #2 SMP PREEMPT … Continue reading →

ARM64 – Odroid C2 – Boots with Patched 4.8-rc4 – Ethernet Issues..

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Decided to try the Odroid C2 with the latest Kernel, and recently-released patches for MMC support.. Used the (patched) version of 4.8-rc4 from here:  https://github.com/ioft/linux/tree/c2    Thanks to umiddelb for producing this, which incorporates the (e)MMC support patches, and also includes patches providing the latest version of the dwmac_meson8b Ethernet driver, and associated mods to the device tree … Continue reading →

X86_64 – UP Board – ‘Cherry Trail’ – Sound – Working..

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The only missing OS component on the new UP Board (x5-Z8350) was that sound (HDMI) was not present..    After a bit of digging, I found some patches for Kernel 4.5, and a later patched kernel version that was supposed to work.. I tried the patched version of 4.7.0 from here:  https://github.com/plbossart/sound/tree/byt-cht-hdmi-v4.7  but found that the compile failed: … Continue reading →

KERNEL – 4.8-rc1 Out – Breaks VMware and NVIDIA – and Fixes..

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Kernel 4.8-rc1 is out, and brief details are here:   http://lkml.iu.edu/hypermail/linux/kernel/1608.0/04804.html VMware 12.1.1 – with the previous 4.6/4.7 patches, fails to compile vmmon: /tmp/modconfig-gfkQLR/vmmon-only/linux/hostif.c: In function ‘HostIF_EstimateLockedPageLimit’: /tmp/modconfig-gfkQLR/vmmon-only/linux/hostif.c:1597:47: error: ‘NR_ANON_PAGES’ undeclared (first use in this function) Further research revealed that NR_ANON_PAGES has been changed to NR_ANON_MAPPED in 4.8, and so the fix is quite simple.. In ~/vmmon-only/linux/hostif.c, around … Continue reading →

ARM64 – Hikey to Kernel 4.7 – and Polkitd Fix..

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Managed to update the Hikey ARM64 SoC to the latest kernel – 4.7 Final. Fedora 24 (Twenty Four) Kernel 4.7.0 on an aarch64 (ttyAMA0) ………………………. # uname -a Linux rghikey 4.7.0 #1 SMP PREEMPT Sun Jul 24 19:53:54 EDT 2016 aarch64 aarch64 aarch64 GNU/Linux On boot, and when the network initialised, polkitd segfaulted again, the same as … Continue reading →