** Tags removed: verification-needed-yakkety ** Tags added: verification-done-yakkety
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1645928 Title: [Bug] (Purley) x86/hpet: Reduce HPET counter read contention Status in intel: New Status in linux package in Ubuntu: Fix Released Status in linux source package in Yakkety: Fix Committed Status in linux source package in Zesty: Fix Released Bug description: Issue description: Boot ubuntu 16.10 and upstream v4.8 kernel on Purley, sometimes we saw following call trace: [ 8.740679] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0, 0, 0, 0, 0^M [ 8.747701] hpet0: 8 comparators, 64-bit 24.000000 MHz counter^M [ 32.765648] NMI watchdog: BUG: soft lockup - CPU#129 stuck for 22s! [watchdog/129:913]^M [ 32.779913] NMI watchdog: BUG: soft lockup - CPU#130 stuck for 22s! [swapper/130:0]^M [ 32.779915] Modules linked in:^M [ 32.779918] CPU: 130 PID: 0 Comm: swapper/130 Not tainted 3.10.0-481.el7.x86_64 #1^M [ 32.779919] Hardware name: Intel Corporation PURLEY/PURLEY, BIOS PLYDCRB1.86B.0095.D20.1607292025 07/29/2016^M [ 32.779921] task: ffff8830b3fb3ec0 ti: ffff8801738e0000 task.ti: ffff8801738e0000^M [ 32.779930] RIP: 0010:[<ffffffff8105feb6>] [<ffffffff8105feb6>] native_safe_halt+0x6/0x10^M [ 32.779932] RSP: 0000:ffff8801738e3e98 EFLAGS: 00000286^M <snip> (All cpus are stuck and NMI dump resulting in a large amount of output.) Issue solution: v4.9 kernel has a commit to fix this issue, please backport it to 16.10: f99fd22 x86/hpet: Reduce HPET counter read contention To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1645928/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
