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OCI Linux Instance Reports Error "WARNING: CPU: 6 PID: 3816 at fs/nfsd/nfsproc.c:810 nfserrno+0x5c/0x70 [nfsd]" (Doc ID 2724651.1)

Last updated on OCTOBER 30, 2020

Applies to:

Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64

Symptoms

The error below is reported intermittently when performing "sudo su -" command as shown below:

$ sudo su - root
Last login: Wed Oct 28 14:45:45 GMT 2020 on pts/4
ABRT has detected 1 problem(s). For more info run: abrt-cli list --since 1603896345

The ABRT Warning is reporting an NFS call strace from the system.

     = /var/log/messages =

Oct 28 15:53:22 <hostname> kernel: nfsd: non-standard errno: -16
Oct 28 15:53:22 <hostname> kernel: ------------[ cut here ]------------
Oct 28 15:53:22 <hostname> kernel: WARNING: CPU: 6 PID: 3816 at fs/nfsd/nfsproc.c:810 nfserrno+0x5c/0x70 [nfsd]
Oct 28 15:53:22 <hostname> kernel: Modules linked in: rpcsec_gss_krb5 cmac sctp_diag sctp tcp_diag udp_diag inet_diag unix_diag lp parport arc4 ecb md4 nls_utf8 cifs ccm dns_resolver fscache xt_comment xt_owner nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat iptable_mangle iptable_security iptable_raw nf_conntrack ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter bochs_drm ttm drm_kms_helper drm kvm_intel kvm syscopyarea sysfillrect sg sysimgblt irqbypass i2
c_piix4 fb_sys_fops pcspkr nfsd auth_rpcgss
Oct 28 15:53:22 <hostname> kernel: binfmt_misc nfs_acl lockd grace ip_tables vfat fat xfs libcrc32c sd_mod virtio_net net_failover virtio_scsi failover be2iscsi bnx2i cnic uio cxgb4i cxgb4 ata_generic ptp pps_core crct10dif_pclmul cxgb3i crc32_pclmul cxgb3 crc32c_intel ghash_clmulni_intel pcbc mdio libcxgbi libcxgbqla4xxx iscsi_boot_sysfs pata_acpi virtio_pci aesni_intel virtio_ring ata_piix crypto_simd glue_helper libata floppy serio_raw cryptd virtio sunrpc dm_mirrordm_region_hash dm_log dm_mod iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi
Oct 28 15:53:22 <hostname> kernel: CPU: 6 PID: 3816 Comm: nfsd Not tainted 4.14.35-1902.8.4.el7uek.x86_64 #2
Oct 28 15:53:22 <hostname> kernel: Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015
Oct 28 15:53:22 <hostname> kernel: task: ffff8d444ff98000 task.stack: ffff9a8647f6c000
Oct 28 15:53:22 <hostname> kernel: RIP: 0010:nfserrno+0x5c/0x70 [nfsd]
Oct 28 15:53:22 <hostname> kernel: RSP: 0018:ffff9a8647f6fd60 EFLAGS: 00010246
Oct 28 15:53:22 <hostname> kernel: RAX: 000000000000001d RBX: ffff8d4446963068 RCX: 0000000000000000
Oct 28 15:53:22 <hostname> kernel: RDX: 0000000000000000 RSI: ffff8d46ffd969c8 RDI: ffff8d46ffd969c8
Oct 28 15:53:22 <hostname> kernel: RBP: ffff9a8647f6fd60 R08: 0000000000000000 R09: 00000000000344d2
Oct 28 15:53:22 <hostname> kernel: R10: 0000000000000004 R11: 00000000000344d1 R12: ffff8d41722416c0
Oct 28 15:53:22 <hostname> kernel: R13: 0000000000004000 R14: ffff8d444e14c878 R15: ffff8d44469623e0
Oct 28 15:53:22 <hostname> kernel: FS:  0000000000000000(0000) GS:ffff8d46ffd80000(0000) knlGS:0000000000000000
Oct 28 15:53:22 <hostname> kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Oct 28 15:53:22 <hostname> kernel: CR2: 00007f76b5bf9000 CR3: 0000000df640a005 CR4: 00000000003606e0
Oct 28 15:53:22 <hostname> kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Oct 28 15:53:22 <hostname> kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Oct 28 15:53:22 <hostname> kernel: Call Trace:
Oct 28 15:53:22 <hostname> kernel: nfsd_unlink+0x14a/0x270 [nfsd]
Oct 28 15:53:22 <hostname> kernel: nfsd4_remove+0x56/0x140 [nfsd]
Oct 28 15:53:22 <hostname> kernel: nfsd4_proc_compound+0x3be/0x720 [nfsd]
Oct 28 15:53:22 <hostname> kernel: nfsd_dispatch+0xc1/0x260 [nfsd]
Oct 28 15:53:22 <hostname> kernel: svc_process_common+0x397/0x730 [sunrpc]
Oct 28 15:53:22 <hostname> kernel: svc_process+0x106/0x1d0 [sunrpc]
Oct 28 15:53:22 <hostname> kernel: nfsd+0xe9/0x160 [nfsd]
Oct 28 15:53:22 <hostname> kernel: kthread+0x105/0x138
Oct 28 15:53:22 <hostname> kernel: ? nfsd_destroy+0x60/0x60 [nfsd]
Oct 28 15:53:22 <hostname> kernel: ? kthread_bind+0x20/0x15
Oct 28 15:53:22 <hostname> kernel: ret_from_fork+0x24/0x49
Oct 28 15:53:22 <hostname> kernel: Code: 36 04 00 00 74 0a b8 00 00 00 05 c3 31 d2 eb e2 55 89 fe 31 c0 48 c7 c7 68 c6 89 c0 c6 05 f8 35 04 00 01 48 89 e5 e8 47 81 89 ce <0f> 0b b8 00 00 00 05 5d c3 90 66 2e 0f 1f 84 00 00 00 00 00 0f
Oct 28 15:53:22 <hostname> kernel: ---[ end trace 7e4dac40ffff0a18 ]---
Oct 28 15:53:23 <hostname> sh: abrt-dump-oops: Found oopses: 1
Oct 28 15:53:23 <hostname> sh: abrt-dump-oops: Creating problem directories
Oct 28 15:53:23 <hostname> sh: abrt-dump-oops: Not going to make dump directories world readable because PrivateReports is on
Oct 28 15:53:24 <hostname> abrt-dump-oops: Reported 1 kernel oopses to Abrt

Cause

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In this Document
Symptoms
Cause
Solution
References


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