On Thu, 2019-10-24 at 05:59:32 UTC, Michael Ellerman wrote: > accumulate_stolen_time() is called prior to interrupt state being > reconciled, which can trip the warning in arch_local_irq_restore(): > > WARNING: CPU: 5 PID: 1017 at arch/powerpc/kernel/irq.c:258 > .arch_local_irq_restore+0x9c/0x130 > ... > NIP .arch_local_irq_restore+0x9c/0x130 > LR .rb_start_commit+0x38/0x80 > Call Trace: > .ring_buffer_lock_reserve+0xe4/0x620 > .trace_function+0x44/0x210 > .function_trace_call+0x148/0x170 > .ftrace_ops_no_ops+0x180/0x1d0 > ftrace_call+0x4/0x8 > .accumulate_stolen_time+0x1c/0xb0 > decrementer_common+0x124/0x160 > > For now just mark it as notrace. We may change the ordering to call it > after interrupt state has been reconciled, but that is a larger > change. > > Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
Applied to powerpc next. https://git.kernel.org/powerpc/c/eb8e20f89093b64f48975c74ccb114e6775cee22 cheers
