Hello, While running rping between a client running a kernel at commit ec9bf373f2458f4b5f1ece8b93a07e6204081667 against an rping server (5.14-rc1 but it doesn't matter). I see the following kernel crash on the client machine: [ 119.521742] BUG: unable to handle page fault for address: ffffc9003b8d7214 [ 119.523886] #PF: supervisor read access in kernel mode [ 119.525338] #PF: error_code(0x0000) - not-present page [ 119.526777] PGD 1000067 P4D 1000067 PUD 11f6067 PMD 0 [ 119.528265] Oops: 0000 [#1] SMP KASAN PTI [ 119.529372] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.13.0-rc1+ #197 [ 119.531294] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/22/2020 [ 119.534213] RIP: 0010:rxe_completer+0x761/0x1840 [rdma_rxe] [ 119.535807] Code: 8d a8 80 01 00 00 e8 2e 68 30 f6 41 8b 4c 24 28 d3 e5 4c 01 ed 48 85 ed 0f 84 20 06 00 00 48 8d bd 94 00 00 00 e8 0f 68 30 f6 <8b> 85 94 00 00 00 85 c0 0f 84 08 06 00 00 83 f8 03 0f 84 f8 08 00 [ 119.540937] RSP: 0018:ffff88805cc49dc8 EFLAGS: 00010246 [ 119.542406] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffc19917d1 [ 119.544448] RDX: 0000000000000007 RSI: dffffc0000000000 RDI: ffffc9003b8d7214 [ 119.546427] RBP: ffffc9003b8d7180 R08: 0000000000000004 R09: ffffed100b9893a6 [ 119.548404] R10: 0000000000000003 R11: ffffed100b9893a6 R12: ffff888011c42380 [ 119.550381] R13: ffffc900038d3180 R14: 00000000ffc7ffc1 R15: ffff88800cf76000 [ 119.552424] FS: 0000000000000000(0000) GS:ffff88805cc40000(0000) knlGS:0000000000000000 [ 119.554646] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 119.556378] CR2: ffffc9003b8d7214 CR3: 0000000007586005 CR4: 00000000001706e0 [ 119.558310] Call Trace: [ 119.558982] <IRQ> [ 119.559536] ? rxe_comp_queue_pkt+0x80/0x80 [rdma_rxe] [ 119.561008] ? __update_load_avg_cfs_rq+0x5a/0x550 [ 119.562290] ? _raw_spin_lock_irqsave+0x80/0xe0 [ 119.563745] ? _raw_write_lock_irqsave+0xe0/0xe0 [ 119.565281] ? __wake_up_bit+0x81/0xe0 [ 119.566415] ? wake_bit_function+0xb0/0xb0 [ 119.567669] ? rxe_comp_queue_pkt+0x80/0x80 [rdma_rxe] [ 119.569212] rxe_do_task+0xd2/0x160 [rdma_rxe] [ 119.570663] tasklet_action_common.isra.16+0x142/0x1f0 [ 119.572196] __do_softirq+0xf9/0x38b [ 119.573298] irq_exit_rcu+0x13d/0x150 [ 119.574424] sysvec_apic_timer_interrupt+0x66/0x80 [ 119.575742] </IRQ> [ 119.576332] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 119.577827] RIP: 0010:acpi_idle_do_entry+0x64/0x70 [ 119.579119] Code: be 08 00 00 00 48 89 df e8 b9 09 55 ff 48 89 df e8 71 ff 54 ff 48 8b 03 a8 08 75 0f e9 07 00 00 00 0f 00 2d 3e d1 74 00 fb f4 <fa> 5b c3 48 89 df 5b e9 70 f9 ff ff 0f 1f 44 00 00 41 57 41 89 d7 [ 119.584104] RSP: 0018:ffff88800130fd40 EFLAGS: 00000246 [ 119.585639] RAX: 0000000000004000 RBX: ffff8880012c8000 RCX: ffffffffb87481af [ 119.587986] RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff8880012c8000 [ 119.589995] RBP: 0000000000000001 R08: ffffed1000259001 R09: ffffed1000259001 [ 119.591923] R10: ffff8880012c8007 R11: ffffed1000259000 R12: ffff888007ac8800 [ 119.594036] R13: 0000000000000001 R14: ffff888007ac8804 R15: ffff888002b8e000 [ 119.596178] ? acpi_idle_do_entry+0x4f/0x70 [ 119.597335] acpi_idle_enter+0x14d/0x1c0 [ 119.598474] cpuidle_enter_state+0xb2/0x590 [ 119.599625] ? tick_nohz_stop_tick+0xb0/0x2c0 [ 119.600847] cpuidle_enter+0x3c/0x60 [ 119.601883] do_idle+0x399/0x400 [ 119.602799] ? arch_cpu_idle_exit+0x40/0x40 [ 119.604003] ? do_idle+0x26d/0x400 [ 119.604965] cpu_startup_entry+0x19/0x20 [ 119.606048] start_secondary+0x1c4/0x220 [ 119.607130] ? set_cpu_sibling_map+0xc30/0xc30 [ 119.608347] ? set_bringup_idt_handler.constprop.0+0x88/0x90 [ 119.609896] ? start_cpu0+0xc/0xc [ 119.610845] secondary_startup_64_no_verify+0xc2/0xcb [ 119.612227] Modules linked in: rpcrdma rdma_ucm rdma_cm iw_cm ib_cm rdma_rxe ip6_udp_tunnel udp_tunnel ib_uverbs ib_core uinput nls_utf8 isofs rfcomm xt_conntrack ipt_REJECT nf_reject_ipv4 nft_compat nft_counter nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables nfnetlink tun bridge stp llc bnep vsock_loopback vmw_vsock_virtio_transport_common vmw_vsock_vmci_transport vsock intel_rapl_msr snd_seq_midi snd_seq_midi_event intel_rapl_common crct10dif_pclmul crc32_pclmul ghash_clmulni_intel vmw_balloon rapl joydev pcspkr snd_ens1371 uvcvideo snd_ac97_codec ac97_bus btusb snd_seq btrtl videobuf2_vmalloc btbcm videobuf2_memops btintel videobuf2_v4l2 videobuf2_common bluetooth snd_pcm videodev snd_timer snd_rawmidi rfkill mc snd_seq_device ecdh_generic snd ecc soundcore vmw_vmci i2c_piix4 auth_rpcgss sunrpc ip_tables xfs libcrc32c sr_mod cdrom sg crc32c_intel nvme vmwgfx ata_generic drm_kms_helper serio_raw nvme_core syscopyarea sysfillrect sysimgblt fb_sys_fops ttm ahci [ 119.612378] drm libahci t10_pi vmxnet3 ata_piix libata dm_mirror dm_region_hash dm_log dm_mod fuse [ 119.638500] CR2: ffffc9003b8d7214 [ 119.639514] ---[ end trace 8177ac0f5fd1b1c0 ]---
