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  1. Lustre
  2. LU-7182

LBUG during key reestablishment with GSS clients

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: Lustre 2.8.0
    • Fix Version/s: Lustre 2.8.0
    • Labels:
    • Epic/Theme:
    • Severity:
      3
    • Rank (Obsolete):
      9223372036854775807

      Description

      Error during reconnect and during key expiration when the client attempts to instantiate a new key with the server. The server gets an LBUG:

      <3>LustreError: 10260:0:(tgt_handler.c:679:tgt_request_handle()) @@@ Unexpected xid 0 vs. last_xid 55e7a7650006b
      
      See following dmesg output:
      <4>Lustre: 9770:0:(sec_gss.c:2086:gss_svc_handle_init()) create svc ctx ffff8800a3f2d240: user from 192.168.1.108@tcp authenticated as root
      <4>Lustre: 9770:0:(sec_gss.c:394:gss_cli_ctx_uptodate()) server installed reverse ctx ffff8800a8d74b40 idx 0xbf1831de90d710e6, expiry 3588728678(+2147483647s)
      <4>Lustre: 9770:0:(tgt_handler.c:850:tgt_init_sec_level()) client 192.168.1.108@tcp -> target lustre-MDT0000 uses old version, run under security level 0.
      <4>Lustre: 10260:0:(sec_gss.c:2346:gss_svc_handle_destroy()) destroy svc ctx ffff8800a3f2d240 idx 0xbd752af10f590f8d (0->192.168.1.108@tcp)
      <3>LustreError: 10260:0:(tgt_handler.c:679:tgt_request_handle()) @@@ Unexpected xid 0 vs. last_xid 55e7a7650006b
      <3>  req@ffff8800b3b85cc0 x0/t0(0) o803->2fc4a29f-142e-0b7c-f3c3-9b04e56ce460@192.168.1.108@tcp:0/0 lens 224/0 e 0 to 0 dl 1441245045 ref 1 fl Interpret:/0/ffffffff rc 0/-1
      <4>Lustre: 10280:0:(gss_svc_upcall.c:1076:gss_svc_upcall_get_ctx()) Invalid gss ctx idx 0xbd752af10f590f8d from 192.168.1.108@tcp
      <0>LustreError: 10260:0:(tgt_handler.c:681:tgt_request_handle()) LBUG
      <4>Pid: 10260, comm: mdt00_004
      <4>
      <4>Call Trace:
      <4> [<ffffffffa100d875>] libcfs_debug_dumpstack+0x55/0x80 [libcfs]
      <4> [<ffffffffa100de77>] lbug_with_loc+0x47/0xb0 [libcfs]
      <4> [<ffffffffa069db98>] tgt_request_handle+0xc68/0x1230 [ptlrpc]
      <4> [<ffffffffa06455d1>] ptlrpc_main+0xe41/0x1920 [ptlrpc]
      <4> [<ffffffffa0644790>] ? ptlrpc_main+0x0/0x1920 [ptlrpc]
      <4> [<ffffffff8109abf6>] kthread+0x96/0xa0
      <4> [<ffffffff8100c20a>] child_rip+0xa/0x20
      <4> [<ffffffff8109ab60>] ? kthread+0x0/0xa0
      <4> [<ffffffff8100c200>] ? child_rip+0x0/0x20
      <4>
      <0>Kernel panic - not syncing: LBUG
      <4>Pid: 10260, comm: mdt00_004 Not tainted 2.6.32-431.23.3.el6_lustre.x86_64 #1
      <4>Call Trace:
      <4> [<ffffffff8152896c>] ? panic+0xa7/0x16f
      <4> [<ffffffffa100decb>] ? lbug_with_loc+0x9b/0xb0 [libcfs]
      <4> [<ffffffffa069db98>] ? tgt_request_handle+0xc68/0x1230 [ptlrpc]
      <4> [<ffffffffa06455d1>] ? ptlrpc_main+0xe41/0x1920 [ptlrpc]
      <4> [<ffffffffa0644790>] ? ptlrpc_main+0x0/0x1920 [ptlrpc]
      <4> [<ffffffff8109abf6>] ? kthread+0x96/0xa0
      <4> [<ffffffff8100c20a>] ? child_rip+0xa/0x20
      <4> [<ffffffff8109ab60>] ? kthread+0x0/0xa0
      <4> [<ffffffff8100c200>] ? child_rip+0x0/0x20
      

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              • Assignee:
                jhammond John Hammond
                Reporter:
                jfilizetti Jeremy Filizetti
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                Dates

                • Created:
                  Updated:
                  Resolved: