On 03.07.2017 09:34, Meelis Roos wrote: > Today I tested 4.12 release on my RP3440 (HP parisc). It worked fine, > then on shutdown I got this strange message from kernel after shutdown: > > reboot: Power down > System shut down completed. > Please power this system off now. > BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 40s! > > and this continues with longer and longer times. > > Is it something hppa specific or general? No idea. Maybe other platforms (like x86_64) physically drop power on machine so you won't see it. On parisc we can't power off on many machines, so instead we will keep running in an endless for-next loop. Btw, I'm seeing a similar BUG: [ 308.432664] reboot: Power down [ 308.479625] System shut down completed. [ 308.479625] Please power this system off now. [ 332.523916] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [halt:1807] [ 332.523916] Modules linked in: [ 332.523916] CPU: 0 PID: 1807 Comm: halt Not tainted 4.12.0-64bit+ #724 [ 332.523916] task: 00000000af379e00 task.stack: 00000000af00c000 [ 332.523916] [ 332.523916] IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004022d180 000000004022d17c [ 332.523916] IIR: 08030241 ISR: 0000000000000000 IOR: 0000000000000000 [ 332.523916] CPU: 0 CR30: 00000000af00c000 CR31: 00000000d23345e2 [ 332.523916] ORIG_R28: 0000000000000000 [ 332.523916] IAOQ[0]: machine_restart+0x0/0xa0 [ 332.523916] IAOQ[1]: machine_power_off+0x104/0x108 [ 332.523916] RP(r2): machine_power_off+0x104/0x108 [ 332.523916] Backtrace: [ 332.523916] [<000000004022d17c>] machine_power_off+0x104/0x108 [ 332.523916] [<000000004028ff3c>] kernel_power_off+0x1ac/0x1c0 [ 332.523916] [<00000000402902a8>] SyS_reboot+0x250/0x340 [ 332.523916] [<0000000040209020>] syscall_exit+0x0/0x14 Helge -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
