I'm seeing this issue after desktop upgrade to yakkety with kernel 4.8.0-22-generic but not with kernel 4.4.16-040416-generic.
NMI watchdog: BUG: soft lockup - CPU#2 stuck for 22s! [ps:3908] Hardware name: Apple Inc. MacBookPro11,1/Mac-189A3D4F975D5FFC, BIOS MBP111.88Z.0138.B07.1402121134 02/12/2014 CPU: 2 PID: 3908 Comm: ps Tainted: P D OE 4.8.0-22-generic #24-Ubuntu RIP: 0010:[<ffffffffa92cf24b>] [<ffffffffa92cf24b>] native_queued_spin_lock_slowpath+0x17b/0x1a0 Call Trace: [<ffffffffa9a9ef10>] _raw_spin_lock+0x20/0x30 [<ffffffffa94a9236>] pid_revalidate+0x56/0x110 [<ffffffffa943eb5b>] lookup_fast+0x2eb/0x310 [<ffffffffa9441e81>] path_openat+0x181/0x1450 [<ffffffffa94432b4>] ? putname+0x54/0x60 [<ffffffffa9444491>] do_filp_open+0x91/0x100 [<ffffffffa9452ea6>] ? __alloc_fd+0x46/0x180 [<ffffffffa9431505>] do_sys_open+0x135/0x280 [<ffffffffa943166e>] SyS_open+0x1e/0x20 [<ffffffffa9a9f076>] entry_SYSCALL_64_fastpath+0x1e/0xa8 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1530405 Title: NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kerneloops:814] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1530405/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
