[LU-2080] SWL -ldiskfs_add_entry: bad entry in directory #: rec_len is smaller than minimal

• Status: Resolved
• Project: Lustre
• Affects Version/s: Lustre 2.3.0
• Type: Bug
• Priority: Blocker
• Reporter: Cliff White (Inactive)
• Assignee: Liang Zhen (Inactive)
• Resolution: Duplicate

Environment

SWL LLNL hyperion running lustre-reivews 9219

• Severity: 3

Description

2012-10-02 13:16:40 LDISKFS-fs Dumping htree_lock ffff880240455e00, mode 0, head ffff88025951f980
2012-10-02 13:16:40 LDISKFS-fs error (device md1): ldiskfs_add_entry: bad entry in directory #119539429: rec_len is smaller than minimal - block=59837240offset=92(92), inode=119560484, rec_len=0, name_len=4
2012-10-02 13:16:40 Aborting journal on device md1-8.

VMcore obtained

 KERNEL: /boot/vmlinux-2.6.32-279.5.1.el6_lustre.gb16fe80.x86_64
    DUMPFILE: vmcore.rst6  [PARTIAL DUMP]
        CPUS: 16
        DATE: Tue Oct  2 13:16:40 2012
      UPTIME: 02:33:34
LOAD AVERAGE: 29.46, 35.50, 23.68
       TASKS: 829
    NODENAME: hyperion-rst6
     RELEASE: 2.6.32-279.5.1.el6_lustre.gb16fe80.x86_64
     VERSION: #1 SMP Fri Sep 28 01:17:20 PDT 2012
     MACHINE: x86_64  (2394 Mhz)
      MEMORY: 12 GB
       PANIC: "kernel BUG at /var/lib/jenkins/workspace/lustre-reviews/arch/x86_64/build_type/server/distro/el6/ib_stack/inkernel/BUILD/BUILD/lustre-ldiskfs-3.3.0/ldiskfs/namei.c:1722!"
         PID: 5289
     COMMAND: "mdt00_027"
        TASK: ffff880275fa6ae0  [THREAD_INFO: ffff8802de892000]
         CPU: 0
       STATE: TASK_RUNNING (PANIC)

PID: 5289 TASK: ffff880275fa6ae0 CPU: 0 COMMAND: "mdt00_027"
#0 [ffff8802de8932a0] machine_kexec at ffffffff8103281b
#1 [ffff8802de893300] crash_kexec at ffffffff810ba792
#2 [ffff8802de8933d0] oops_end at ffffffff81501700
#3 [ffff8802de893400] die at ffffffff8100f26b
#4 [ffff8802de893430] do_trap at ffffffff81500ff4
#5 [ffff8802de893490] do_invalid_op at ffffffff8100ce35
#6 [ffff8802de893530] invalid_op at ffffffff8100bedb
[exception RIP: add_dirent_to_buf+1101]
RIP: ffffffffa072a3fd RSP: ffff8802de8935e0 RFLAGS: 00010286
RAX: ffff88031dadd800 RBX: ffff880155701064 RCX: 00000000000014f8
RDX: ffff880308182400 RSI: 0000000000000086 RDI: ffff88031daddc00
RBP: ffff8802de8936b0 R8: 00000000fffffffb R9: 00000000fffffffe
R10: 0000000000000000 R11: 00000000000000b4 R12: ffff8802d7990a50
R13: 000000000000005c R14: 0000000000000004 R15: 0000000007205924
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#7 [ffff8802de8936b8] ldiskfs_add_entry at ffffffffa072d0c5 [ldiskfs]
#8 [ffff8802de893758] __osd_ea_add_rec at ffffffffa0fcb689 [osd_ldiskfs]
#9 [ffff8802de8937a8] osd_index_ea_insert at ffffffffa0fd7beb [osd_ldiskfs]
#10 [ffff8802de893838] __mdd_index_insert_only at ffffffffa0eb86f7 [mdd]
#11 [ffff8802de893898] __mdd_index_insert at ffffffffa0eb9891 [mdd]
#12 [ffff8802de8938e8] mdd_create at ffffffffa0ebf59b [mdd]
#13 [ffff8802de893a28] cml_create at ffffffffa103c637 [cmm]
#14 [ffff8802de893a78] mdt_reint_open at ffffffffa0f55b9f [mdt]
#15 [ffff8802de893b48] mdt_reint_rec at ffffffffa0f3f151 [mdt]
#16 [ffff8802de893b68] mdt_reint_internal at ffffffffa0f389aa [mdt]
#17 [ffff8802de893bb8] mdt_intent_reint at ffffffffa0f38f7d [mdt]
#18 [ffff8802de893c08] mdt_intent_policy at ffffffffa0f35191 [mdt]
#19 [ffff8802de893c48] ldlm_lock_enqueue at ffffffffa0905881 [ptlrpc]
#20 [ffff8802de893ca8] ldlm_handle_enqueue0 at ffffffffa092d9bf [ptlrpc]
#21 [ffff8802de893d18] mdt_enqueue at ffffffffa0f35506 [mdt]
#22 [ffff8802de893d38] mdt_handle_common at ffffffffa0f2c802 [mdt]
#23 [ffff8802de893d88] mdt_regular_handle at ffffffffa0f2d6f5 [mdt]
#24 [ffff8802de893d98] ptlrpc_server_handle_request at ffffffffa095db3c [ptlrpc]
#25 [ffff8802de893e98] ptlrpc_main at ffffffffa095f111 [ptlrpc]
#26 [ffff8802de893f48] kernel_thread at ffffffff8100c14a

Issue Links

• duplicates: LU-2041 SWL ldiskfs_add_entry: bad entry in d...

Comments

[Peter Jones]

Liang is this another occurence of LU-2041?

[Andreas Dilger]

This is just LU-2041 with the extra BUG() triggered by the debug patch.