On 3/10/19 12:37 PM, Parav Pandit wrote:
With write bw I hit a hit soft lockup, kernel:watchdog: BUG: soft lockup - CPU#63 stuck for 22s! [ksoftirqd/63:328] kernel: irq event stamp: 354570533 kernel: hardirqs last enabled at (354570532): [<ffffffff92c23f12>] _raw_read_unlock_irqrestore+0x32/0x60 kernel: hardirqs last disabled at (354570533): [<ffffffff92403717>] trace_hardirqs_off_thunk+0x1a/0x1c kernel: softirqs last enabled at (20353810): [<ffffffff93000325>] __do_softirq+0x325/0x3cf kernel: softirqs last disabled at (20353815): [<ffffffff9249eea5>] run_ksoftirqd+0x35/0x50 kernel: CPU: 32 PID: 173 Comm: ksoftirqd/32 Kdump: loaded Tainted: G L 5.0.0-rc7-vdevbus+ #2 kernel: Hardware name: Supermicro SYS-6028U-TR4+/X10DRU-i+, BIOS 2.0b 08/09/2016 kernel: rxe_responder+0x941/0x1ff0 [rdma_rxe] kernel: ? __lock_acquire+0x240/0xf60 kernel: ? find_held_lock+0x31/0xa0 kernel: ? find_held_lock+0x31/0xa0 kernel: ? rxe_do_task+0x7e/0xf0 [rdma_rxe] kernel: ? _raw_spin_unlock_irqrestore+0x32/0x51 kernel: rxe_do_task+0x85/0xf0 [rdma_rxe]
I've also seen this lockup with v5.0 while running blktests. I have not yet had the time to analyze this lockup further.
Bart.
