(In reply to Liu Liu from comment #597) --- snip -- > Some updates since I last posted. I've updated to gcc-8 and enabled > idle=halt. Even though idle=halt + gcc-7 with the original reprod steps can > still cause a lockup. By defaulting to gcc-8 and idle=halt, in day-to-day > uses, I haven't encountered any system lockup in the past 2 months. I > concluded that idle=halt should mitigate this problem for normal uses.
Are you saying that you compiled kernel with gcc-8 or that you use gcc-8 in your day to day work? On my system I get a lockup if I do not use idle=nomwait. Like everyone else I too have tried verious combinations to be stable. (Ryzen 2500U Laptop) As far as I can tell this bug is not really fixed except on Microsoft Windows (and who knows what they are doing). Regardless things seem stable now but I can not use suspend (a different bug) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1690085 Title: Ryzen 1800X freeze - rcu_sched detected stalls on CPUs/tasks To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1690085/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
