[LU-9390] sanity test_42e: MDS BUG in kmem_cache_alloc_trace()

• Status: Open
• Project: Lustre
• Type: Bug
• Priority: Minor
• Reporter: Maloo
• Assignee: WC Triage
• Resolution: Unresolved
• Severity: 3

Description

This issue was created by maloo for Andreas Dilger <[e-mail]>

This issue relates to the following test suite run: https://testing.hpdd.intel.com/test_sets/207debbe-26b7-11e7-b742-5254006e85c2.

when testing patch https://review.whamcloud.com/26750

The sub-test test_42e failed with the following error in the MDS console log:
https://testing.hpdd.intel.com/test_logs/24e7a244-26b7-11e7-b742-5254006e85c2/show_text

08:41:04:[ 3984.580836] BUG: unable to handle kernel paging request at 0000000100000000
08:41:04:[ 3984.581698] RIP: kmem_cache_alloc_trace+0x80/0x200
08:41:04:[ 3984.619294] Call Trace:
08:41:04:[ 3984.619294]  osp_txn_key_init+0x20/0xd0 [osp]
08:41:04:[ 3984.619294]  keys_fill+0x9b/0x120 [obdclass]
08:41:04:[ 3984.619294]  lu_context_init+0xd3/0x1f0 [obdclass]
08:41:04:[ 3984.619294]  osd_trans_start+0x1e2/0x490 [osd_ldiskfs]
08:41:04:[ 3984.619294]  mdt_empty_transno+0xf1/0x830 [mdt]
08:41:04:[ 3984.619294]  mdt_mfd_open+0x8dc/0xe70 [mdt]
08:41:04:[ 3984.619294]  mdt_finish_open+0x49b/0x690 [mdt]
08:41:04:[ 3984.619294]  mdt_reint_open+0x2307/0x31a0 [mdt]
08:41:04:[ 3984.619294]  mdt_reint_rec+0x80/0x210 [mdt]
08:41:04:[ 3984.619294]  mdt_reint_internal+0x5b2/0x980 [mdt]
08:41:04:[ 3984.619294]  mdt_intent_reint+0x162/0x430 [mdt]
08:41:04:[ 3984.619294]  mdt_intent_policy+0x43e/0xc30 [mdt]
08:41:04:[ 3984.619294]  ldlm_lock_enqueue+0x387/0x970 [ptlrpc]
08:41:04:[ 3984.619294]  ldlm_handle_enqueue0+0x9c3/0x1680 [ptlrpc]
08:41:04:[ 3984.619294]  tgt_enqueue+0x62/0x210 [ptlrpc]
08:41:04:[ 3984.619294]  tgt_request_handle+0x915/0x1320 [ptlrpc]
08:41:04:[ 3984.619294]  ptlrpc_server_handle_request+0x21b/0xa90 [ptlrpc]
08:41:05:[ 3984.619294]  ptlrpc_main+0xaa0/0x1de0 [ptlrpc]

Info required for matching: sanity 42e

Issue Links

• is related to: LU-9349 PFL known issues tracking ticket

Comments

[Andreas Dilger]

Not positive this is PFL related, but hit during testing of a PFL patch.