kernel oops in NFS-shared zfs #2165
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Closing as duplicate of #2171. |
behlendorf
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4089 NULL pointer dereference in arc_read() Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com> Reviewed by: Garrett D'Amore <garrett@damore.org> Approved by: Dan McDonald <danmcd@nexenta.com> References: https://www.illumos.org/issues/4089 illumos/illumos-gate@57815f6 Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #2171 Issue #2165 Closes #2198
ryao
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4089 NULL pointer dereference in arc_read() Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com> Reviewed by: Garrett D'Amore <garrett@damore.org> Approved by: Dan McDonald <danmcd@nexenta.com> References: https://www.illumos.org/issues/4089 illumos/illumos-gate@57815f6 Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue openzfs#2171 Issue openzfs#2165 Closes openzfs#2198 Conflicts: module/zfs/arc.c
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I had a kernel OOPS on a zfs-backed NFS server -- the syslog message is below, I'm happy to provide further information as useful:
Mar 5 16:52:23 storage kernel: [3634128.457887] BUG: unable to handle kernel NULL pointer dereference at 0000000000000014
Mar 5 16:52:23 storage kernel: [3634128.474112] IP: [] arc_read+0x7a1/0x8d0 [zfs]
Mar 5 16:52:23 storage kernel: [3634128.482540] PGD 0
Mar 5 16:52:23 storage kernel: [3634128.490776] Oops: 0000 [#1] SMP
Mar 5 16:52:23 storage kernel: [3634128.499036] Modules linked in: 8021q garp stp mrp appletalk ipx p8023 p8022 psnap llc svcrdma xprtrdma rdma_ucm rdma_cm ib_addr iw_cm ib_uverbs ext2 ses enclosure vesafb(F) x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd gpio_ich dm_round_robin dm_multipath scsi_dh microcode ib_umad ib_ipoib sb_edac joydev ib_cm edac_core lpc_ich mei_me mei ioatdma nfsd auth_rpcgss nfs_acl wmi nfs lockd sunrpc mlx4_ib fscache ib_sa mac_hid ib_mad ib_core lp parport zfs(POF) zunicode(POF) zavl(POF) zcommon(POF) znvpair(POF) spl(OF) zlib_deflate mlx4_en hid_generic usb_storage igb mlx4_core mpt2sas i2c_algo_bit usbhid dca ahci hid ptp raid_class libahci pps_core scsi_transport_sas
Mar 5 16:52:23 storage kernel: [3634128.599086] CPU: 9 PID: 5069 Comm: nfsd Tainted: PF O 3.11.0-15-generic #23-Ubuntu
Mar 5 16:52:23 storage kernel: [3634128.618536] Hardware name: Supermicro X9DRi-LN4+/X9DR3-LN4+/X9DRi-LN4+/X9DR3-LN4+, BIOS 3.0 07/05/2013
Mar 5 16:52:23 storage kernel: [3634128.638911] task: ffff8820172a1770 ti: ffff8820170b2000 task.ti: ffff8820170b2000
Mar 5 16:52:23 storage kernel: [3634128.660476] RIP: 0010:[] [] arc_read+0x7a1/0x8d0 [zfs]
Mar 5 16:52:23 storage kernel: [3634128.682831] RSP: 0018:ffff8820170b37b0 EFLAGS: 00010282
Mar 5 16:52:23 storage kernel: [3634128.693955] RAX: ffff8805f5716598 RBX: ffffc91199a5f000 RCX: 0000000000000000
Mar 5 16:52:23 storage kernel: [3634128.715696] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8805f5716950
Mar 5 16:52:23 storage kernel: [3634128.738671] RBP: ffff8820170b3838 R08: ffffc90303a71000 R09: 0000000000020000
Mar 5 16:52:23 storage kernel: [3634128.760849] R10: ffff88100e3d6000 R11: 0000000000000000 R12: ffff88128431c1a8
Mar 5 16:52:23 storage kernel: [3634128.783629] R13: ffff8820170b3894 R14: ffff881002a5e000 R15: ffff880faa0ad4f8
Mar 5 16:52:23 storage kernel: [3634128.806763] FS: 0000000000000000(0000) GS:ffff88207fc20000(0000) knlGS:0000000000000000
Mar 5 16:52:23 storage kernel: [3634128.830427] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Mar 5 16:52:23 storage kernel: [3634128.842035] CR2: 0000000000000014 CR3: 0000000001c0e000 CR4: 00000000000407e0
Mar 5 16:52:23 storage kernel: [3634128.864743] Stack:
Mar 5 16:52:23 storage kernel: [3634128.875923] ffffffffa025ad00 ffff881136c83b00 ffff880200000000 0000000000040640
Mar 5 16:52:23 storage kernel: [3634128.898274] ffff880d00000000 00000000170b3838 ffff88062a9c8910 0000000592935e00
Mar 5 16:52:23 storage kernel: [3634128.920513] ffff88100e3d6000 0000000000020000 ff2247bc00000000 ffffffffa0333550
Mar 5 16:52:23 storage kernel: [3634128.942832] Call Trace:
Mar 5 16:52:23 storage kernel: [3634128.953591] [] ? arc_read_done+0x2f0/0x2f0 [zfs]
Mar 5 16:52:23 storage kernel: [3634128.965882] [] dbuf_read+0x214/0x880 [zfs]
Mar 5 16:52:23 storage kernel: [3634128.976894] [] dmu_buf_hold_array_by_dnode+0x181/0x5c0 [zfs]
Mar 5 16:52:23 storage kernel: [3634128.998560] [] dmu_buf_hold_array+0x5d/0x80 [zfs]
Mar 5 16:52:23 storage kernel: [3634129.009277] [] dmu_read_uio+0x41/0xe0 [zfs]
Mar 5 16:52:23 storage kernel: [3634129.019881] [] zfs_read+0x17c/0x4b0 [zfs]
Mar 5 16:52:23 storage kernel: [3634129.030335] [] zpl_read_common+0x52/0x80 [zfs]
Mar 5 16:52:23 storage kernel: [3634129.040524] [] zpl_read+0x60/0x90 [zfs]
Mar 5 16:52:23 storage kernel: [3634129.050359] [] ? zpl_read_common+0x80/0x80 [zfs]
Mar 5 16:52:23 storage kernel: [3634129.060210] [] do_loop_readv_writev+0x62/0x90
Mar 5 16:52:23 storage kernel: [3634129.069996] [] do_readv_writev+0x20d/0x230
Mar 5 16:52:23 storage kernel: [3634129.079598] [] ? exportfs_decode_fh+0xa8/0x2e0
Mar 5 16:52:23 storage kernel: [3634129.088706] [] ? kmem_cache_alloc_trace+0x108/0x130
Mar 5 16:52:23 storage kernel: [3634129.097765] [] ? aa_alloc_task_context+0x27/0x40
Mar 5 16:52:23 storage kernel: [3634129.106578] [] ? apparmor_cred_prepare+0x2f/0x50
Mar 5 16:52:23 storage kernel: [3634129.115306] [] vfs_readv+0x32/0x60
Mar 5 16:52:23 storage kernel: [3634129.123727] [] nfsd_vfs_read.isra.12+0x6e/0x160 [nfsd]
Mar 5 16:52:23 storage kernel: [3634129.132186] [] ? find_client_in_id_table+0x141/0x190 [nfsd]
Mar 5 16:52:23 storage kernel: [3634129.148571] [] ? lookup_clientid+0x51/0x80 [nfsd]
Mar 5 16:52:23 storage kernel: [3634129.156810] [] nfsd_read_file+0x68/0xa0 [nfsd]
Mar 5 16:52:23 storage kernel: [3634129.165386] [] nfsd4_encode_read+0x16d/0x260 [nfsd]
Mar 5 16:52:23 storage kernel: [3634129.173982] [] nfsd4_encode_operation+0x5f/0xc0 [nfsd]
Mar 5 16:52:23 storage kernel: [3634129.182561] [] nfsd4_proc_compound+0x21e/0x7b0 [nfsd]
Mar 5 16:52:23 storage kernel: [3634129.190646] [] nfsd_dispatch+0xbb/0x200 [nfsd]
Mar 5 16:52:23 storage kernel: [3634129.198432] [] svc_process_common+0x46d/0x6e0 [sunrpc]
Mar 5 16:52:23 storage kernel: [3634129.206074] [] svc_process+0x107/0x170 [sunrpc]
Mar 5 16:52:23 storage kernel: [3634129.213744] [] nfsd+0xbf/0x130 [nfsd]
Mar 5 16:52:23 storage kernel: [3634129.221282] [] ? nfsd_destroy+0x80/0x80 [nfsd]
Mar 5 16:52:23 storage kernel: [3634129.229462] [] kthread+0xc0/0xd0
Mar 5 16:52:23 storage kernel: [3634129.236696] [] ? kthread_create_on_node+0x120/0x120
Mar 5 16:52:23 storage kernel: [3634129.245865] [] ret_from_fork+0x7c/0xb0
Mar 5 16:52:23 storage kernel: [3634129.254659] [] ? kthread_create_on_node+0x120/0x120
Mar 5 16:52:23 storage kernel: [3634129.263869] Code: 04 00 48 89 44 24 08 48 c7 04 24 00 ad 25 a0 89 54 24 18 48 8b 54 24 38 89 74 24 10 4c 89 f6 e8 a6 d7 09 00 49 8b 97 f8 00 00 00 <48> 63 52 14 f0 48 01 15 03 0a 0d 00 41 f6 45 00 04 48 89 c7 0f
Mar 5 16:52:23 storage kernel: [3634129.292264] RIP [] arc_read+0x7a1/0x8d0 [zfs]
Mar 5 16:52:23 storage kernel: [3634129.301443] RSP
Mar 5 16:52:23 storage kernel: [3634129.310911] CR2: 0000000000000014
Mar 5 16:52:23 storage kernel: [3634129.334845] ---[ end trace ed56a43c12891658 ]---
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