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  1. While trying to run through the NFS example in the Kubernetes codebase via GCE: https://github.com/GoogleCloudPlatform/kubernetes/tree/master/examples/nfs
  2.  
  3. gcloud alpha container kubectl create -f nfs-server-pod.yaml
  4. pods/nfs-server
  5.  
  6. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.482242] ------------[ cut here ]------------
  7. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.483060] WARNING: CPU: 0 PID: 7160 at /build/linux-50mAO0/linux-3.16.7-ckt4/fs/nfsd/nfs4recover.c:1195 nfsd4_umh_cltrack_init+0x4a/0x60 [nfsd]()
  8. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.486065] Modules linked in: nfsd auth_rpcgss oid_registry nfs_acl xt_nat xt_REDIRECT xt_tcpudp xt_comment nfs lockd sunrpc fscache sg veth xt_addrtype ipt_MASQUERADE bridge stp llc iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables aufs(C) parport_pc parport crct10dif_pclmul crc32_pclmul psmouse crc32c_intel ghash_clmulni_intel serio_raw aesni_intel virtio_net i2c_piix4 i2c_core evdev aes_x86_64 lrw gf128mul button processor thermal_sys glue_helper ablk_helper pcspkr cryptd ext4 crc16 mbcache jbd2 sd_mod crc_t10dif crct10dif_common virtio_scsi scsi_mod virtio_pci virtio virtio_ring
  9. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.495918] CPU: 0 PID: 7160 Comm: rpc.nfsd Tainted: G WC 3.16.0-0.bpo.4-amd64 #1 Debian 3.16.7-ckt4-3~bpo70+1
  10. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.497578] Hardware name: Google Google, BIOS Google 01/01/2011
  11. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.498520] 0000000000000000 ffffffffa039e910 ffffffff81543593 ffff88005d52fd78
  12. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.499980] ffffffff8106deec ffff88005d9d2600 ffff88006842a4c0 ffff88006842a4c0
  13. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.501183] ffff88005d9d2600 0000000000000000 ffffffff8106dfda ffffffffa039e8c8
  14. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.502414] Call Trace:
  15. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.502818] [<ffffffff81543593>] ? dump_stack+0x41/0x51
  16. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.503650] [<ffffffff8106deec>] ? warn_slowpath_common+0x8c/0xc0
  17. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.504687] [<ffffffff8106dfda>] ? warn_slowpath_fmt+0x4a/0x50
  18. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.505553] [<ffffffffa0398a3a>] ? nfsd4_umh_cltrack_init+0x4a/0x60 [nfsd]
  19. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.506683] [<ffffffffa03999c1>] ? nfsd4_client_tracking_init+0x91/0x130 [nfsd]
  20. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.508226] [<ffffffffa039386d>] ? nfs4_state_start_net+0x28d/0x330 [nfsd]
  21. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.509270] [<ffffffffa036cb53>] ? nfsd_svc+0x1b3/0x350 [nfsd]
  22. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.510251] [<ffffffffa036d9f0>] ? write_filehandle+0x270/0x270 [nfsd]
  23. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.511249] [<ffffffff812d2b1b>] ? simple_strtoull+0x2b/0x50
  24. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.512149] [<ffffffffa036d9f0>] ? write_filehandle+0x270/0x270 [nfsd]
  25. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.513148] [<ffffffffa036da7b>] ? write_threads+0x8b/0xe0 [nfsd]
  26. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.652743] [<ffffffff81151bce>] ? __get_free_pages+0xe/0x50
  27. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.653571] [<ffffffff811e38e1>] ? simple_transaction_get+0xc1/0xe0
  28. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.654522] [<ffffffffa036d9f0>] ? write_filehandle+0x270/0x270 [nfsd]
  29. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.655456] [<ffffffffa036d18b>] ? nfsctl_transaction_write+0x5b/0x90 [nfsd]
  30. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.656697] [<ffffffff811bd555>] ? vfs_write+0xc5/0x1f0
  31. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.657481] [<ffffffff811bda60>] ? SyS_write+0x50/0xb0
  32. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.658226] [<ffffffff81549a6d>] ? system_call_fast_compare_end+0x10/0x15
  33. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.659255] ---[ end trace 55a472001aaefdf8 ]---
  34. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.662348] ------------[ cut here ]------------
  35. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.663220] WARNING: CPU: 0 PID: 7160 at /build/linux-50mAO0/linux-3.16.7-ckt4/fs/nfsd/nfs4recover.c:530 nfsd4_legacy_tracking_init+0x20f/0x280 [nfsd]()
  36. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.666466] Modules linked in: nfsd auth_rpcgss oid_registry nfs_acl xt_nat xt_REDIRECT xt_tcpudp xt_comment nfs lockd sunrpc fscache sg veth xt_addrtype ipt_MASQUERADE bridge stp llc iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables aufs(C) parport_pc parport crct10dif_pclmul crc32_pclmul psmouse crc32c_intel ghash_clmulni_intel serio_raw aesni_intel virtio_net i2c_piix4 i2c_core evdev aes_x86_64 lrw gf128mul button processor thermal_sys glue_helper ablk_helper pcspkr cryptd ext4 crc16 mbcache jbd2 sd_mod crc_t10dif crct10dif_common virtio_scsi scsi_mod virtio_pci virtio virtio_ring
  37. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.675684] CPU: 0 PID: 7160 Comm: rpc.nfsd Tainted: G WC 3.16.0-0.bpo.4-amd64 #1 Debian 3.16.7-ckt4-3~bpo70+1
  38. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.677196] Hardware name: Google Google, BIOS Google 01/01/2011
  39. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.678058] 0000000000000000 ffffffffa039e910 ffffffff81543593 ffff88005d52fd58
  40. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.679213] ffffffff8106deec 00000000ffffffea ffff88006842a4c0 0000000000004000
  41. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.680391] ffff88005d9d2600 0000000000000000 ffffffff8106dfda ffffffffa039ea08
  42. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.681861] Call Trace:
  43. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.682240] [<ffffffff81543593>] ? dump_stack+0x41/0x51
  44. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.682997] [<ffffffff8106deec>] ? warn_slowpath_common+0x8c/0xc0
  45. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.683903] [<ffffffff8106dfda>] ? warn_slowpath_fmt+0x4a/0x50
  46. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.684780] [<ffffffffa039935f>] ? nfsd4_legacy_tracking_init+0x20f/0x280 [nfsd]
  47. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.685883] [<ffffffffa039998c>] ? nfsd4_client_tracking_init+0x5c/0x130 [nfsd]
  48. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.686939] [<ffffffffa039386d>] ? nfs4_state_start_net+0x28d/0x330 [nfsd]
  49. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.687949] [<ffffffffa036cb53>] ? nfsd_svc+0x1b3/0x350 [nfsd]
  50. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.688831] [<ffffffffa036d9f0>] ? write_filehandle+0x270/0x270 [nfsd]
  51. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.689788] [<ffffffff812d2b1b>] ? simple_strtoull+0x2b/0x50
  52. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.690670] [<ffffffffa036d9f0>] ? write_filehandle+0x270/0x270 [nfsd]
  53. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.691641] [<ffffffffa036da7b>] ? write_threads+0x8b/0xe0 [nfsd]
  54. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.692531] [<ffffffff81151bce>] ? __get_free_pages+0xe/0x50
  55. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.693439] [<ffffffff811e38e1>] ? simple_transaction_get+0xc1/0xe0
  56. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.694367] [<ffffffffa036d9f0>] ? write_filehandle+0x270/0x270 [nfsd]
  57. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.695348] [<ffffffffa036d18b>] ? nfsctl_transaction_write+0x5b/0x90 [nfsd]
  58. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.696582] [<ffffffff811bd555>] ? vfs_write+0xc5/0x1f0
  59. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.697347] [<ffffffff811bda60>] ? SyS_write+0x50/0xb0
  60. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.698104] [<ffffffff81549a6d>] ? system_call_fast_compare_end+0x10/0x15
  61. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.699108] ---[ end trace 55a472001aaefdf9 ]---
  62. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.699755] NFSD: Unable to initialize client recovery tracking! (-22)
  63. Apr 27 00:11:06 k8s-cluster-6-node-1 kernel: [60165.700753] NFSD: starting 90-second grace period (net ffff88006842a4c0)
  64. Apr 27 00:11:20 k8s-cluster-6-node-1 kernel: [60179.968025] cbr0: port 6(veth5cfa76d) entered forwarding state
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