On Thu, 16 Aug 2018, Heiner Kallweit wrote: > Recently I started to get warning "NOHZ: local_softirq_pending 202" and > I think it's related to mentioned commit (didn't bisect it yet). > See log from suspending. > > I have no reason to think the fix is wrong, it may just have revealed > another issue which existed before and was hidden by the bug.
Looks so. That seems to be related to CPU offlining. No idea yet... > Rgds, Heiner > > [ 75.073353] random: crng init done > [ 75.073402] random: 7 urandom warning(s) missed due to ratelimiting > [ 78.619564] PM: suspend entry (deep) > [ 78.619675] PM: Syncing filesystems ... done. > [ 78.653684] Freezing user space processes ... (elapsed 0.002 seconds) done. > [ 78.656094] OOM killer disabled. > [ 78.656113] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) > done. > [ 78.658177] Suspending console(s) (use no_console_suspend to debug) > [ 78.663066] nuvoton-cir 00:07: disabled > [ 78.671817] sd 0:0:0:0: [sda] Synchronizing SCSI cache > [ 78.672210] sd 0:0:0:0: [sda] Stopping disk > [ 78.786651] ACPI: Preparing to enter system sleep state S3 > [ 78.789613] PM: Saving platform NVS memory > [ 78.789759] Disabling non-boot CPUs ... > [ 78.805154] NOHZ: local_softirq_pending 202 > [ 78.805182] NOHZ: local_softirq_pending 202 > [ 78.807102] smpboot: CPU 1 is now offline >
