Monday, April 15th, 2019

Time	Event
2:02p	Kernel prepatch 5.1-rc5 The 5.1-rc5 kernel prepatch is out for testing. "Nothing in here makes me feel uncomfortable about this release cycle so far. Knock wood." (Comment on this)
3:02p	Security updates for Monday Security updates have been issued by Debian (graphicsmagick, jasper, and libssh2), Fedora (kernel, kernel-headers, kernel-tools, nodejs-simple-markdown, and php), openSUSE (netpbm and xen), and SUSE (audiofile, firefox, java-1_7_0-openjdk, libvirt, openssh, and systemd). (Comment on this)
7:10p	Stable kernel updates Stable kernels 5.0.7, 4.19.34, 4.14.111, and 4.9.168 were actually released last week, but the email wasn't sent. As usual they all contain important fixes and users should upgrade. (Comment on this)
8:38p	An eBPF overview series from Collabora Adrian Ratiu is posting a series of articles on the Collabora blog digging into the kernel's eBPF subsystem. The first two parts are available now: an introduction and a look at the virtual machine. "eBPF is a RISC register machine with a total of 11 64-bit registers, a program counter and a 512 byte fixed-size stack. 9 registers are general purpouse read-write, one is a read-only stack pointer and the program counter is implicit, i.e. we can only jump to a certain offset from it. The VM registers are always 64-bit wide (even when running inside a 32-bit ARM processor kernel!) and support 32-bit subregister addressing if the most significant 32 bits are zeroed - this will be very useful in part 4 when cross-compiling and running eBPF programs on embedded devices." (Comment on this)

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