kernel oops in rdma in 5.7-rc5

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Hi Chuck,

I was running some tests on latest in Trond's origin/testing and got
the following oops. Is this known?

[ 2116.066790] CPU: 1 PID: 429 Comm: kworker/u256:3 Not tainted 5.7.0-rc5 #16
[ 2116.070852] Hardware name: VMware, Inc. VMware Virtual
Platform/440BX Desktop Reference Platform, BIOS 6.00 04/13/2018
[ 2116.077145] Workqueue: rpciod rpc_async_schedule [sunrpc]
[ 2116.080990] RIP: 0010:ib_drain_rq+0x7/0x80 [ib_core]
[ 2116.084088] Code: c6 48 c7 c7 c8 b1 cf c0 31 c0 c6 05 57 85 04 00
01 e8 0d c9 3c e4 0f 0b e9 00 ff ff ff 66 0f 1f 44 00 00 0f 1f 44 00
00 55 53 <48> 8b 07 48 89 fb 48 8b 40 30 48 85 c0 74 53 e8 85 34 f3 e4
48 8b
[ 2116.094874] RSP: 0018:ffffae1bc07e7d80 EFLAGS: 00010292
[ 2116.098270] RAX: ffff99006ffdb800 RBX: ffff99006fff2c00 RCX: 0000000000000000
[ 2116.102803] RDX: 0000000000000000 RSI: 0000000000000207 RDI: 0000000000000000
[ 2116.107521] RBP: ffff990071110800 R08: 0000000000000000 R09: ffff990031b10000
[ 2116.111567] R10: 0000000000000000 R11: 000000000000477d R12: ffff99006ffdb800
[ 2116.115771] R13: ffff99006fff2c00 R14: ffff990071110e40 R15: 0000000000000001
[ 2116.119860] FS:  0000000000000000(0000) GS:ffff99007be40000(0000)
knlGS:0000000000000000
[ 2116.124401] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2116.127864] CR2: 0000000000000000 CR3: 00000000788a2003 CR4: 00000000001606e0
[ 2116.131983] Call Trace:
[ 2116.136671]  rpcrdma_xprt_disconnect+0x52/0x2b0 [rpcrdma]
[ 2116.140171]  ? call_transmit+0xa0/0xa0 [sunrpc]
[ 2116.142819]  xprt_rdma_close+0x17/0x80 [rpcrdma]
[ 2116.145496]  xprt_connect+0x17b/0x1e0 [sunrpc]
[ 2116.148116]  ? call_transmit+0xa0/0xa0 [sunrpc]
[ 2116.150834]  __rpc_execute+0x80/0x430 [sunrpc]
[ 2116.153994]  ? try_to_wake_up+0x62/0x5e0
[ 2116.156374]  rpc_async_schedule+0x29/0x40 [sunrpc]
[ 2116.159099]  process_one_work+0x172/0x380
[ 2116.161591]  worker_thread+0x49/0x3f0
[ 2116.163707]  kthread+0xf8/0x130
[ 2116.165512]  ? max_active_store+0x80/0x80
[ 2116.167892]  ? kthread_bind+0x10/0x10
[ 2116.170231]  ret_from_fork+0x35/0x40
[ 2116.172468] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4
dns_resolver nfs lockd grace fscache ib_isert iscsi_target_mod ib_srpt
target_core_mod rpcrdma ib_srp ib_iser scsi_transport_srp libiscsi
ib_ipoib scsi_transport_iscsi rdma_rxe ib_umad ip6_udp_tunnel
udp_tunnel rdma_ucm rdma_cm iw_cm ib_cm ib_uverbs ib_core tcp_lp
nls_utf8 isofs rfcomm fuse xt_CHECKSUM xt_MASQUERADE tun bridge stp
llc ip6t_rpfilter ipt_REJECT nf_reject_ipv4 ip6t_REJECT nf_reject_ipv6
xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute ip6table_nat
ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_nat
nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle
iptable_security iptable_raw ebtable_filter ebtables ip6table_filter
ip6_tables iptable_filter vsock_loopback
vmw_vsock_virtio_transport_common vmw_vsock_vmci_transport vsock bnep
sunrpc snd_seq_midi snd_seq_midi_event intel_rapl_msr
intel_rapl_common crc32_pclmul snd_ens1371 snd_ac97_codec
ghash_clmulni_intel ac97_bus snd_rawmidi snd_seq
[ 2116.172559]  btusb btrtl btbcm btintel bluetooth snd_seq_device
uvcvideo snd_pcm videobuf2_vmalloc videobuf2_memops aesni_intel
videobuf2_v4l2 vmw_balloon videobuf2_common videodev crypto_simd
cryptd glue_helper snd_timer snd vmw_vmci mc joydev pcspkr
ecdh_generic ecc rfkill sg soundcore i2c_piix4 ip_tables xfs libcrc32c
sd_mod t10_pi sr_mod crc_t10dif cdrom crct10dif_generic ata_generic
pata_acpi crct10dif_pclmul crct10dif_common vmwgfx crc32c_intel
drm_kms_helper serio_raw syscopyarea sysfillrect sysimgblt fb_sys_fops
ttm e1000 ata_piix drm libata mptspi scsi_transport_spi mptscsih
mptbase dm_mirror dm_region_hash dm_log dm_mod
[ 2116.259736] CR2: 0000000000000000
[ 2116.266264] ---[ end trace f10e2bf40bcc51ad ]---



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