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  1. Lustre
  2. LU-2888

After downgrade from 2.4 to 2.1.4, hit (osd_handler.c:2343:osd_index_try()) ASSERTION( dt_object_exists(dt) ) failed

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Details

    • Bug
    • Resolution: Fixed
    • Major
    • Lustre 2.4.0, Lustre 2.1.6
    • Lustre 2.4.0, Lustre 2.1.4
    • None
    • before upgrade, server and client: 2.1.4 RHEL6
      after upgrade, server and client: lustre-master build# 1270 RHEL6
    • 3
    • 6970

    Description

      Here are what I did:
      1. format the system as 2.1.4 and then upgrade to 2.4, success.
      2. showdown the filesystem and disable quota
      3. downgrade the system to 2.1.4 again, when mount MDS, hit following errors

      Here is the console of MDS:

      Lustre: DEBUG MARKER: == upgrade-downgrade End == 18:53:45 (1362020025)
      LDISKFS-fs warning (device sdb1): ldiskfs_fill_super: extents feature not enabled on this filesystem, use tune2fs.
      LDISKFS-fs (sdb1): mounted filesystem with ordered data mode. Opts: 
      LDISKFS-fs warning (device sdb1): ldiskfs_fill_super: extents feature not enabled on this filesystem, use tune2fs.
      LDISKFS-fs (sdb1): mounted filesystem with ordered data mode. Opts: 
      LDISKFS-fs warning (device sdb1): ldiskfs_fill_super: extents feature not enabled on this filesystem, use tune2fs.
      LDISKFS-fs (sdb1): mounted filesystem with ordered data mode. Opts: 
      Lustre: MGS MGS started
      Lustre: 7888:0:(ldlm_lib.c:952:target_handle_connect()) MGS: connection from 7306ea48-8511-52b2-40cf-6424fc417e41@0@lo t0 exp (null) cur 1362020029 last 0
      Lustre: MGC10.10.4.132@tcp: Reactivating import
      Lustre: MGS: Logs for fs lustre were removed by user request.  All servers must be restarted in order to regenerate the logs.
      Lustre: Setting parameter lustre-MDT0000-mdtlov.lov.stripesize in log lustre-MDT0000
      Lustre: Setting parameter lustre-clilov.lov.stripesize in log lustre-client
      Lustre: Enabling ACL
      Lustre: Enabling user_xattr
      LustreError: 7901:0:(osd_handler.c:2343:osd_index_try()) ASSERTION( dt_object_exists(dt) ) failed: 
      LustreError: 7901:0:(osd_handler.c:2343:osd_index_try()) LBUG
      Pid: 7901, comm: llog_process_th
      
      Message from
      Call Trace:
       syslogd@fat-amd [<ffffffffa03797f5>] libcfs_debug_dumpstack+0x55/0x80 [libcfs]
      -1 at Feb 27 18: [<ffffffffa0379e07>] lbug_with_loc+0x47/0xb0 [libcfs]
      53:49 ...
       ker [<ffffffffa0d6bd74>] osd_index_try+0x84/0x540 [osd_ldiskfs]
      nel:LustreError: [<ffffffffa04c1dfe>] dt_try_as_dir+0x3e/0x60 [obdclass]
       7901:0:(osd_han [<ffffffffa0c5eb3a>] orph_index_init+0x6a/0x1e0 [mdd]
      dler.c:2343:osd_ [<ffffffffa0c6ec45>] mdd_prepare+0x1d5/0x640 [mdd]
      index_try()) ASS [<ffffffffa0ccd23c>] ? mdt_process_config+0x6c/0x1030 [mdt]
      ERTION( dt_objec [<ffffffffa0da0499>] cmm_prepare+0x39/0xe0 [cmm]
      t_exists(dt) ) f [<ffffffffa0ccfd7d>] mdt_device_alloc+0xe0d/0x2190 [mdt]
      ailed: 
      
      Me [<ffffffffa04bdeff>] ? keys_fill+0x6f/0x1a0 [obdclass]
      ssage from syslo [<ffffffffa04a2c87>] obd_setup+0x1d7/0x2f0 [obdclass]
      gd@fat-amd-1 at  [<ffffffffa048ef3b>] ? class_new_export+0x72b/0x960 [obdclass]
      Feb 27 18:53:49  [<ffffffffa04a2fa8>] class_setup+0x208/0x890 [obdclass]
      ...
       kernel:Lu [<ffffffffa04aac6c>] class_process_config+0xc3c/0x1c30 [obdclass]
      streError: 7901: [<ffffffffa037a993>] ? cfs_alloc+0x63/0x90 [libcfs]
      0:(osd_handler.c [<ffffffffa04a5813>] ? lustre_cfg_new+0x353/0x7e0 [obdclass]
      :2343:osd_index_ [<ffffffffa04acd0b>] class_config_llog_handler+0x9bb/0x1610 [obdclass]
      try()) LBUG
       [<ffffffffa0637e3b>] ? llog_client_next_block+0x1db/0x4b0 [ptlrpc]
       [<ffffffffa0478098>] llog_process_thread+0x888/0xd00 [obdclass]
       [<ffffffffa0477810>] ? llog_process_thread+0x0/0xd00 [obdclass]
       [<ffffffff8100c14a>] child_rip+0xa/0x20
       [<ffffffffa0477810>] ? llog_process_thread+0x0/0xd00 [obdclass]
       [<ffffffffa0477810>] ? llog_process_thread+0x0/0xd00 [obdclass]
       [<ffffffff8100c140>] ? child_rip+0x0/0x20
      
      Kernel panic - not syncing: LBUG
      Pid: 7901, comm: llog_process_th Not tainted 2.6.32-279.14.1.el6_lustre.x86_64 #1
      Call Trace:
      
       [<ffffffff814fdcba>] ? panic+0xa0/0x168
      Message from sy [<ffffffffa0379e5b>] ? lbug_with_loc+0x9b/0xb0 [libcfs]
      slogd@fat-amd-1  [<ffffffffa0d6bd74>] ? osd_index_try+0x84/0x540 [osd_ldiskfs]
      at Feb 27 18:53: [<ffffffffa04c1dfe>] ? dt_try_as_dir+0x3e/0x60 [obdclass]
      49 ...
       kernel [<ffffffffa0c5eb3a>] ? orph_index_init+0x6a/0x1e0 [mdd]
      :Kernel panic -  [<ffffffffa0c6ec45>] ? mdd_prepare+0x1d5/0x640 [mdd]
      not syncing: LBU [<ffffffffa0ccd23c>] ? mdt_process_config+0x6c/0x1030 [mdt]
      G
       [<ffffffffa0da0499>] ? cmm_prepare+0x39/0xe0 [cmm]
       [<ffffffffa0ccfd7d>] ? mdt_device_alloc+0xe0d/0x2190 [mdt]
       [<ffffffffa04bdeff>] ? keys_fill+0x6f/0x1a0 [obdclass]
       [<ffffffffa04a2c87>] ? obd_setup+0x1d7/0x2f0 [obdclass]
       [<ffffffffa048ef3b>] ? class_new_export+0x72b/0x960 [obdclass]
       [<ffffffffa04a2fa8>] ? class_setup+0x208/0x890 [obdclass]
       [<ffffffffa04aac6c>] ? class_process_config+0xc3c/0x1c30 [obdclass]
       [<ffffffffa037a993>] ? cfs_alloc+0x63/0x90 [libcfs]
       [<ffffffffa04a5813>] ? lustre_cfg_new+0x353/0x7e0 [obdclass]
       [<ffffffffa04acd0b>] ? class_config_llog_handler+0x9bb/0x1610 [obdclass]
       [<ffffffffa0637e3b>] ? llog_client_next_block+0x1db/0x4b0 [ptlrpc]
       [<ffffffffa0478098>] ? llog_process_thread+0x888/0xd00 [obdclass]
       [<ffffffffa0477810>] ? llog_process_thread+0x0/0xd00 [obdclass]
       [<ffffffff8100c14a>] ? child_rip+0xa/0x20
       [<ffffffffa0477810>] ? llog_process_thread+0x0/0xd00 [obdclass]
       [<ffffffffa0477810>] ? llog_process_thread+0x0/0xd00 [obdclass]
       [<ffffffff8100c140>] ? child_rip+0x0/0x20
      Initializing cgroup subsys cpuset
      Initializing cgroup subsys cpu
      

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              bobijam Zhenyu Xu
              sarah Sarah Liu
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                Created:
                Updated:
                Resolved: