On Mon, 16 Oct 2017, Petri Latvala wrote:
Please CC LKML next time when you report a problem. I almost missed this
thread.
> [ 174.561006] kernel BUG at arch/x86/kernel/apic/vector.c:154!
> [ 174.716682] assign_vector_locked+0x9c/0x150
> [ 174.721229] apic_set_affinity+0x47/0x70
> [ 174.725440] ioapic_set_affinity+0x1a/0x60
> [ 174.729838] irq_do_set_affinity+0x18/0x60
> [ 174.734206] irq_migrate_all_off_this_cpu+0x136/0x270
> [ 174.739647] fixup_irqs+0x2f/0x130
> [ 174.743312] cpu_disable_common+0x1c7/0x1e0
> [ 174.747792] native_cpu_disable+0x20/0x30
> [ 174.752073] take_cpu_down+0x3c/0xa0
> [ 174.755869] multi_cpu_stop+0x8e/0xb0
> [ 174.759762] ? cpu_stop_queue_work+0x90/0x90
> [ 174.764360] cpu_stopper_thread+0x8a/0x100
> [ 174.768758] smpboot_thread_fn+0x165/0x230
> [ 174.773168] kthread+0x10c/0x140
Can you please pick up linux-next of today and merge the x86/apic branch
from the tip-tree into it:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/apic
There is a fix which might be related. Though I have no idea yet how the
above can happen.
Please enable tracing in the kernel configuration and enable the vector
tracepoints.
# for D in `ls -d /sys/kernel/debug/tracing/events/irq_vectors/vector_*`; do
echo 1 > $D/enable; done
Also please do
# echo 1 > /proc/sys/kernel/ftrace_dump_on_oops
That should dump the trace buffer when the bug hits. I try to reproduce
myself.
Thanks,
tglx
