> I am seeing the following soft lockup on multiple Ultrasparc II era > sparc machines - Ultra 2, Netra X1, Blade 100 at least. 4.9 was fine. > Will attempt to bisect some time. > > The lockups are detected routinely (every 2-3 files when compiling new > kernel) but the machine keeps running. > > CC added because of NMI changes - no idea if it is related. > > I have THP enabled and always on in most machines' kernel config. > > [503216.376072] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [khugepaged:153] Ocassionally, I also get this on the U2: [500680.792223] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 39s! [500680.891127] Showing busy workqueues and worker pools: [500680.955396] workqueue events: flags=0x0 [500681.005072] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 [500681.080732] pending: vmstat_shepherd [500681.131337] workqueue events_freezable_power_: flags=0x84 [500681.199644] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 [500681.275233] pending: disk_events_workfn [500681.328847] workqueue kblockd: flags=0x18 [500681.380364] pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=2/256 [500681.457924] pending: blk_mq_timeout_work, blk_mq_timeout_work [500681.534525] workqueue vmstat: flags=0xc [500681.583956] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 [500681.659357] pending: vmstat_update -- Meelis Roos (mroos@xxxxxxxx) -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
