[LU-7572] sanity-scrub 4c : server kernel BUG at lustre-2.7.64/ldiskfs/namei.c:208

• Type: Bug
• Resolution: Duplicate
• Priority: Minor
• Affects Version/s: Lustre 2.8.0
• Environment: Server 2.7.64 Client 2.7.64; Configuration : 4 node_dne_singlemds; Release; 2.6.32_431.29.2.el6_lustremaster_9267_2_g0585b0f Build Date: Sat 12 Dec 2015 06:07:30 PM UTC
• Severity: 3
• Assignee: nasf (Inactive)
• Reporter: parinay v kondekar (Inactive)

Description

<4>------------[ cut here ]------------
<2>kernel BUG at /root/fsroot/workspace/Regular-build/BRANCH/master/MODE/normal/NODE/chroot-sl62-64/workdir/BUILD/lustre-2.7.64/ldiskfs/namei.c:208!
<4>invalid opcode: 0000 [#1] SMP 
<4>last sysfs file: /sys/devices/system/cpu/online
<4>CPU 0 
<4>Modules linked in: osp(U) mdd(U) lod(U) mdt(U) lfsck(U) mgs(U) mgc(U) osd_ldiskfs(U) lquota(U) lustre(U) lov(U) mdc(U) fid(U) lmv(U) fld(U) ksocklnd(U) ptlrpc(U) obdclass(U) lnet(U) sha512_generic sha256_generic libcfs(U) ldiskfs(U) nfs lockd fscache auth_rpcgss nfs_acl sunrpc ipt_REJECT ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 virtio_net i2c_piix4 i2c_core virtio_balloon ext4 jbd2 mbcache virtio_blk virtio_pci virtio_ring virtio pata_acpi ata_generic ata_piix dm_mirror dm_region_hash dm_log dm_mod [last unloaded: nf_defrag_ipv4]
<4>
<4>Pid: 26402, comm: mdt00_003 Not tainted 2.6.32-431.29.2.el6_lustremaster_9267_2 #1 Red Hat KVM
<4>RIP: 0010:[<ffffffffa0316747>]  [<ffffffffa0316747>] dx_get_dx_info+0xb7/0xc0 [ldiskfs]
<4>RSP: 0018:ffff88005949b720  EFLAGS: 00010206
<4>RAX: ffff880059c42950 RBX: ffff88005949b870 RCX: 0000000000000000
<4>RDX: 0000000000000000 RSI: ffff88005949b690 RDI: ffff88006e0a7000
<4>RBP: ffff88005949b720 R08: ffff88005949a000 R09: 00000000ffffffff
<4>R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000000
<4>R13: ffff8800798e60f8 R14: ffff880059c42950 R15: ffff880059d22728
<4>FS:  0000000000000000(0000) GS:ffff880002200000(0000) knlGS:0000000000000000
<4>CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
<4>CR2: 00007f38839a1000 CR3: 0000000001a85000 CR4: 00000000000006f0
<4>DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
<4>DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
<4>Process mdt00_003 (pid: 26402, threadinfo ffff88005949a000, task ffff88005d105500)
<4>Stack:
<4> ffff88005949b7c0 ffffffffa03183db 0000000000000188 ffff880059c792d0
<4><d> ffff880059d226d0 ffff880059d22728 ffff88005949b8b0 ffff88005949b96c
<4><d> ffff88005949b780 ffff88005949b820 ffff88005949b780 ffff88005bc39800
<4>Call Trace:
<4> [<ffffffffa03183db>] dx_probe+0x5b/0x720 [ldiskfs]
<4> [<ffffffff811bf6bc>] ? __getblk+0x2c/0x2a0
<4> [<ffffffffa0318d3e>] ldiskfs_dx_find_entry+0x29e/0x2e0 [ldiskfs]
<4> [<ffffffffa067e855>] ? _ldlm_lock_debug+0x2f5/0x680 [ptlrpc]
<4> [<ffffffffa0331f3c>] ? ldiskfs_xattr_get+0x10c/0x330 [ldiskfs]
<4> [<ffffffffa031909b>] __ldiskfs_find_entry+0x31b/0x4a0 [ldiskfs]
<4> [<ffffffffa033425b>] ? ldiskfs_xattr_trusted_get+0x2b/0x30 [ldiskfs]
<4> [<ffffffff811af127>] ? generic_getxattr+0x87/0x90
<4> [<ffffffffa0ba5904>] ? osd_xattr_get+0x1e4/0x290 [osd_ldiskfs]
<4> [<ffffffffa0bb0d24>] osd_index_ea_lookup+0x234/0xd30 [osd_ldiskfs]
<4> [<ffffffffa0e57b38>] ? lod_load_striping_locked+0x2d8/0x600 [lod]
<4> [<ffffffffa0e61985>] lod_index_lookup+0x25/0x30 [lod]
<4> [<ffffffffa0ed405c>] __mdd_lookup+0x28c/0x450 [mdd]
<4> [<ffffffffa0ed4306>] mdd_lookup+0xe6/0x180 [mdd]
<4> [<ffffffffa0d896cf>] mdt_getattr_name_lock+0xaff/0x1910 [mdt]
<4> [<ffffffffa0d8aa02>] mdt_intent_getattr+0x292/0x470 [mdt]
<4> [<ffffffffa0d7c294>] mdt_intent_policy+0x494/0xc40 [mdt]
<4> [<ffffffffa06838c7>] ldlm_lock_enqueue+0x127/0x8e0 [ptlrpc]
<4> [<ffffffffa06b1527>] ldlm_handle_enqueue0+0x807/0x15b0 [ptlrpc]
<4> [<ffffffffa0729fb1>] ? tgt_lookup_reply+0x31/0x190 [ptlrpc]
<4> [<ffffffffa073d1d1>] tgt_enqueue+0x61/0x230 [ptlrpc]
<4> [<ffffffffa073dc8c>] tgt_request_handle+0x8ec/0x1470 [ptlrpc]
<4> [<ffffffffa06e4e81>] ptlrpc_main+0xe41/0x1910 [ptlrpc]
<4> [<ffffffffa06e4040>] ? ptlrpc_main+0x0/0x1910 [ptlrpc]
<4> [<ffffffff8109abf6>] kthread+0x96/0xa0
<4> [<ffffffff8100c20a>] child_rip+0xa/0x20
<4> [<ffffffff8109ab60>] ? kthread+0x0/0xa0
<4> [<ffffffff8100c200>] ? child_rip+0x0/0x20
<4>Code: 85 c9 41 0f 94 c1 41 8d 0c 09 45 0f be c8 4c 01 c6 44 01 c9 d0 ea 75 dc 0f b6 c0 c9 8d 4c 01 0b 83 e1 fc 48 63 c9 48 8d 04 0f c3 <0f> 0b eb fe 0f 1f 44 00 00 55 48 89 e5 48 83 ec 20 0f 1f 44 00 
<1>RIP  [<ffffffffa0316747>] dx_get_dx_info+0xb7/0xc0 [ldiskfs]
<4> RSP <ffff88005949b720>

Issue Links

• duplicates: LU-6895 sanity-lfsck test 4 hung: bad entry in directory: rec_len is smaller than minimal - inode=3925999616