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  1. Lustre
  2. LU-4127

Loading fld module crashes kernel in mainline 3.12-rc.5

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Details

    • Bug
    • Resolution: Fixed
    • Critical
    • None
    • Lustre 2.4.1
    • None
    • Plain 3.12-rc5
    • 4
    • 11137

    Description

      Trigger Bug

      • modprobe fld

      [ 395.749857] LustreError: 8638:0:(lu_object.c:1314:lu_context_key_register()) ASSERTION( key->lct_init != ((void *)0) ) failed:
      [ 395.761503] LustreError: 8638:0:(lu_object.c:1314:lu_context_key_register()) LBUG
      [ 395.769982] Kernel panic - not syncing: LBUG
      [ 395.774365] CPU: 1 PID: 8638 Comm: modprobe Tainted: G C 3.12.0-rc5-qlustar-gen-1 #1
      [ 395.783134] Hardware name: Supermicro X8DTT-H/X8DTT-H, BIOS 080016 03/08/2010
      [ 395.790525] ffffffffa0a27cd8 ffff880c186b1c38 ffffffff81549200 0000000000000007
      [ 395.798332] ffffffffa051873d ffff880c186b1cb8 ffffffff81546827 ffffffff816746fd
      [ 395.806149] ffffffff00000008 ffff880c186b1cc8 ffff880c186b1c68 ffffffffa06af350
      [ 395.813963] Call Trace:
      [ 395.816516] [<ffffffff81549200>] dump_stack+0x46/0x58
      [ 395.821757] [<ffffffff81546827>] panic+0xb6/0x1c6
      [ 395.826667] [<ffffffffa04fcb50>] lbug_with_loc+0xb0/0xb0 [libcfs]
      [ 395.832963] [<ffffffffa06902b1>] lu_context_key_register+0x131/0x140 [obdclass]
      [ 395.840514] [<ffffffffa0a2a000>] ? 0xffffffffa0a29fff
      [ 395.845756] [<ffffffffa0a2a000>] ? 0xffffffffa0a29fff
      [ 395.850999] [<ffffffffa0a2a041>] fld_mod_init+0x41/0x45 [fld]
      [ 395.856936] [<ffffffff81000239>] do_one_initcall+0x49/0x170
      [ 395.862709] [<ffffffff8106ad3e>] ? __blocking_notifier_call_chain+0x5e/0x80
      [ 395.869863] [<ffffffff810a7f7a>] load_module+0x1bca/0x22f0
      [ 395.875543] [<ffffffff810a56b0>] ? __symbol_get+0x70/0x70
      [ 395.881132] [<ffffffff810a8738>] SyS_init_module+0x98/0xc0
      [ 395.886810] [<ffffffff81556da6>] system_call_fastpath+0x1a/0x1f

      Attachments

        1. .config
          94 kB
          Roland Fehrenbacher
        2. 0001-QL-Fix-lustre-fld-module-crash-when-loading.patch
          2 kB
          Roland Fehrenbacher

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              wc-triage WC Triage
              rfehren Roland Fehrenbacher
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              Dates

                Created:
                Updated:
                Resolved: