[44100.745418] Unable to handle kernel paging request at virtual address 00002260 [44100.758109] Mem abort info: [44100.761956] Exception class = DABT (current EL), IL = 32 bits [44100.768677] SET = 0, FnV = 0 [44100.772039] EA = 0, S1PTW = 0 [44100.775736] Data abort info: [44100.779766] ISV = 0, ISS = 0x00000004 [44100.784425] CM = 0, WnR = 0 [44100.788179] user pgtable: 4k pages, 48-bit VAs, pgd = ffff8021a8b40000 [44100.795815] [0000000000002260] *pgd=0000000000000000 [44100.802390] Internal error: Oops: 96000004 [#1] SMP [44100.808278] Modules linked in: rdma_test(OE) hns_roce_pci(OE) hns_roce(OE) debug_nic_mii(OE) rdma_ucm(OE) rdma_cm(OE) ib_cm(OE) i w_cm(OE) ib_uverbs(OE) ib_core(OE) hns3_enet_ut(OE) hclge(OE) hnae3(OE) [last unloaded: rdma_test] [44100.833620] CPU: 0 PID: 4680 Comm: kworker/u2:0 Tainted: G OE 4.14.0 #1 [44100.845099] Workqueue: events_unbound flush_to_ldisc [44100.850594] task: ffff8021f266c200 task.stack: ffff00003bd28000 [44100.857556] PC is at n_tty_receive_buf_common+0x68/0xa08 [44100.863382] LR is at n_tty_receive_buf_common+0x54/0xa08 [44100.869091] pc : [] lr : [] pstate: 80c00149 [44100.876787] sp : ffff00003bd2bc40 [44100.880411] x29: ffff00003bd2bc40 x28: ffff8021a3c47400 [44100.886332] x27: ffff00003c533cc8 x26: ffff000008e0c000 [44100.892170] x25: 0000000000000000 x24: ffff8021f266c200 [44100.897990] x23: 0000000000000000 x22: ffff8021a3c46c20 [44100.903841] x21: ffff8021a3c474c0 x20: 0000000000000003 [44100.909654] x19: 0000000000000000 x18: 0000000000000003 [44100.915482] x17: 0000ffffa0e0dca8 x16: 0000000000438170 [44100.921318] x15: 00003d27a0000000 x14: 00003d0900000000 [44100.927167] x13: 00000000000061a8 x12: 000000000000ac42 [44100.932979] x11: 0000000000000001 x10: 0000000000000c80 [44100.938788] x9 : ffff00003bd2bd40 x8 : ffff8021f266cee0 [44100.944592] x7 : ffff8021ad587e10 x6 : 0000000000000001 [44100.950446] x5 : ffff0000094d0ab0 x4 : 0000000000000001 [44100.956274] x3 : 0000000000000003 x2 : 0000000000000000 [44100.962056] x1 : 0000000000000000 x0 : 0000000000002260 [44100.968028] Process kworker/u2:0 (pid: 4680, stack limit = 0xffff00003bd28000) [44100.975728] Call trace: [44100.978848] Exception stack(0xffff00003bd2bb00 to 0xffff00003bd2bc40) [44100.985988] bb00: 0000000000002260 0000000000000000 0000000000000000 0000000000000003 [44100.994293] bb20: 0000000000000001 ffff0000094d0ab0 0000000000000001 ffff8021ad587e10 [44101.002542] bb40: ffff8021f266cee0 ffff00003bd2bd40 0000000000000c80 0000000000000001 [44101.010813] bb60: 000000000000ac42 00000000000061a8 00003d0900000000 00003d27a0000000 [44101.019111] bb80: 0000000000438170 0000ffffa0e0dca8 0000000000000003 0000000000000000 [44101.027366] bba0: 0000000000000003 ffff8021a3c474c0 ffff8021a3c46c20 0000000000000000 [44101.035652] bbc0: ffff8021f266c200 0000000000000000 ffff000008e0c000 ffff00003c533cc8 [44101.043947] bbe0: ffff8021a3c47400 ffff00003bd2bc40 ffff0000086a4594 ffff00003bd2bc40 [44101.052252] bc00: ffff0000086a45a8 0000000080c00149 ffff00003bd2bc20 ffff000008c47aec [44101.060464] bc20: ffffffffffffffff ffff0000086a4594 ffff00003bd2bc40 ffff0000086a45a8 [44101.068876] [] n_tty_receive_buf_common+0x68/0xa08 [44101.075722] [] n_tty_receive_buf2+0x40/0x50 [44101.081939] [] tty_ldisc_receive_buf+0x48/0xa0 [44101.088725] [] tty_port_default_receive_buf+0x50/0x8c [44101.095825] [] flush_to_ldisc+0xc0/0xd4 [44101.103151] [] process_one_work+0x144/0x390 [44101.109367] [] worker_thread+0x144/0x418 [44101.115489] [] kthread+0x10c/0x138 [44101.122129] [] ret_from_fork+0x10/0x18 [44101.128234] Code: 911d6340 f90047a0 d2844c00 8b170000 (c8dffc03) [44101.135955] ---[ end trace d1054bd4df5a813f ]--- [44101.141207] Kernel panic - not syncing: Fatal exception [44101.147961] Kernel Offset: disabled [44101.152249] CPU features: 0x000a18 [44101.156150] Memory Limit: none [44101.159788] ---[ end Kernel panic - not syncing: Fatal exception