[ 1772.805928] BUG: unable to handle kernel NULL pointer dereference at (null) [ 1772.808352] IP: [] __fput+0x3d/0x260 [ 1772.809863] PGD 0 [ 1772.810479] Oops: 0000 [#1] SMP [ 1772.811394] Modules linked in: nfsd(OE) auth_rpcgss nfs_acl lockd grace sunrpc nf_conntrack_ftp ip6t_rpfilter ipt_REJECT nf_reject_ipv4 ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink 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 nf_conntrack libcrc32c iptable_mangle iptable_security iptable_raw ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter zfs(POE) zunicode(POE) zlua(POE) iosf_mbi crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd ppdev sg joydev pcspkr shpchp virtio_balloon i2c_piix4 parport_pc parport dm_multipath dm_mod zcommon(POE) znvpair(POE) zavl(POE) icp(POE) [ 1772.832293] spl(OE) drop_tcp_sock(OE) ip_tables ext4 mbcache jbd2 sd_mod crc_t10dif crct10dif_generic virtio_net virtio_scsi ata_generic pata_acpi cirrus drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm ata_piix crct10dif_pclmul libata crct10dif_common crc32c_intel virtio_pci i2c_core virtio_ring serio_raw virtio floppy [ 1772.841107] CPU: 25 PID: 1001 Comm: kworker/25:2 Tainted: P OE ------------ 3.10.0-693.el7.x86_64 #1 [ 1772.843815] Hardware name: Red Hat KVM, BIOS 1.10.2-3.el7_4.1 04/01/2014 [ 1772.845851] Workqueue: events delayed_fput [ 1772.847009] task: ffff8817caa28fd0 ti: ffff8817cda48000 task.ti: ffff8817cda48000 [ 1772.849066] RIP: 0010:[] [] __fput+0x3d/0x260 [ 1772.851150] RSP: 0018:ffff8817cda4bda8 EFLAGS: 00010297 [ 1772.852517] RAX: 0000000000000000 RBX: ffff880b9f89b600 RCX: ffff8817cda4bfd8 [ 1772.854234] RDX: 000000000000821d RSI: ffff8812cf044fc0 RDI: ffff880b9f89b600 [ 1772.855992] RBP: ffff8817cda4bde0 R08: ffff880b9f89b600 R09: 0000000000000000 [ 1772.857894] R10: 0000000000000000 R11: ffff88173409f910 R12: ffff8817cda4bdf0 [ 1772.859754] R13: ffff8805e6c77148 R14: ffff8812cf044fc0 R15: ffff88178bb2a420 [ 1772.861659] FS: 0000000000000000(0000) GS:ffff8817dee40000(0000) knlGS:0000000000000000 [ 1772.863885] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1772.865397] CR2: 0000000000000000 CR3: 00000000019f2000 CR4: 00000000003406e0 [ 1772.867223] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1772.869147] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1772.871180] Stack: [ 1772.871716] ffff880a5adcd350 ffff88173409f910 ffff880b9f89b600 ffff8817cda4bdf0 [ 1772.873737] ffff8817dee56540 ffff8817dee5a700 0000000000000640 ffff8817cda4be18 [ 1772.875809] ffffffff812031df ffff880f8b574800 ffff880f8b574800 000000003cc699aa [ 1772.877835] Call Trace: [ 1772.878495] [] delayed_fput+0xaf/0xe0 [ 1772.879917] [] process_one_work+0x17a/0x440 [ 1772.881454] [] worker_thread+0x126/0x3c0 [ 1772.882884] [] ? manage_workers.isra.24+0x2a0/0x2a0 [ 1772.884628] [] kthread+0xcf/0xe0 [ 1772.885922] [] ? insert_kthread_work+0x40/0x40 [ 1772.887390] [] ret_from_fork+0x58/0x90 [ 1772.888936] [] ? insert_kthread_work+0x40/0x40 [ 1772.890662] Code: 48 89 fb 48 83 ec 10 4c 8b 77 18 4c 8b 7f 10 4c 8b 6f 20 e8 36 68 4a 00 48 8b 73 18 8b 53 44 4c 8b 56 30 89 d0 83 e0 02 83 f8 01 <41> 0f b7 02 45 19 e4 41 83 e4 08 41 83 c4 08 44 89 e1 66 25 00 [ 1772.899184] RIP [] __fput+0x3d/0x260 [ 1772.902598] RSP [ 1772.905483] CR2: 0000000000000000