After long hours of testing, it appears that the problem goes away with mem=12G or lower in the kernel command line, and appears with mem=13G or any other value up to 16G that the system has.
Tomorrow I'll test sysctl vm.dirty_background_ratio=5; feel free to suggest more tests. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1698118 Title: Slow disk writes after some uptime, only on certain hw and 4.4+ kernels To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1698118/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
