[PATCH AUTOSEL for 4.9 113/190] IB/hfi1: Fix softlockup issue

2018-03-07 Thread Sasha Levin
From: Tadeusz Struk [ Upstream commit 22546b741af8355cd2e16739b6af4a8f17081839 ] Soft lockups can occur because the mad processing on different CPUs acquire the spin lock dc8051_lock: [534552.835870] [] ? read_dev_port_cntr.isra.37+0x23/0x160 [hfi1] [534552.835880]

[PATCH AUTOSEL for 4.9 113/190] IB/hfi1: Fix softlockup issue

2018-03-07 Thread Sasha Levin
From: Tadeusz Struk [ Upstream commit 22546b741af8355cd2e16739b6af4a8f17081839 ] Soft lockups can occur because the mad processing on different CPUs acquire the spin lock dc8051_lock: [534552.835870] [] ? read_dev_port_cntr.isra.37+0x23/0x160 [hfi1] [534552.835880] []