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Upgrade Linux to 4.8 and adjust our kernel tweaks accordingly
Originally created by @intrigeri on #11886 (Redmine)
https://ftp-master.debian.org/new/linux_4.8.4-1~exp1.html reads:
* [amd64] Enable LEGACY_VSYSCALL_NONE instead of LEGACY_VSYSCALL_EMULATE.
This breaks (e)glibc 2.13 and earlier, and can be reverted using the kernel
parameter: vsyscall=emulate
* Enable SLAB_FREELIST_RANDOM
* security,printk: Enable SECURITY_DMESG_RESTRICT, preventing non-root users
reading the kernel log by default (sysctl: kernel.dmesg_restrict)Likely we can drop a couple tweaks we do, and should check if at least
our slab_nomerge is still the best we can do.
Feature Branch: feature/11886-linux-4.8
Attachments
Related issues
- Related to #11840 (closed)
- Related to #12090 (closed)
- Related to #12025
- Related to #12122 (closed)