Re: sysrq-b fails miserably to reboot PowerNV box

2016-10-09 Thread Michael Ellerman
Anton Blanchard writes: > Hi, > > Unfortunately sysrq-b seems to tie us up in knots, instead of rebooting > the box. This is mainline from today. I logged it too, so we (hopefully) don't forget: https://github.com/linuxppc/linux/issues/72 cheers

Re: sysrq-b fails miserably to reboot PowerNV box

2016-10-08 Thread Benjamin Herrenschmidt
On Sat, 2016-10-08 at 22:16 +1100, Anton Blanchard wrote: > Hi, > > Unfortunately sysrq-b seems to tie us up in knots, instead of > rebooting > the box. This is mainline from today. Argh yeah reboot from interrupt context, what a PITA... ppc_md.machine_shutdown is called which is supposed to be

sysrq-b fails miserably to reboot PowerNV box

2016-10-08 Thread Anton Blanchard
Hi, Unfortunately sysrq-b seems to tie us up in knots, instead of rebooting the box. This is mainline from today. Anton -- Trying to free IRQ 17 from IRQ context! [ cut here ] WARNING: CPU: 32 PID: 0 at kernel/irq/manage.c:1460 __free_irq+0x298/0x380 Modules linked in: kv