[LU-1259] Test failure on test suite conf-sanity, subtest test_41a

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.3.0
• Severity: 3
• Assignee: Jinshan Xiong (Inactive)
• Reporter: Maloo

Description

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

This issue relates to the following test suite run: https://maloo.whamcloud.com/test_sets/0908f616-76c9-11e1-ae2e-5254004bbbd3.

The sub-test test_41a failed with the following error:

test failed to respond and timed out

03:07:11:Lustre: DEBUG MARKER: == conf-sanity test 41a: mount mds with --nosvc and --nomgs ========================================== 03:07:01 (1332670021)
03:07:11:LDISKFS-fs (dm-0): warning: maximal mount count reached, running e2fsck is recommended
03:07:11:LDISKFS-fs (dm-0): mounted filesystem with ordered data mode. Opts:
03:07:11:LDISKFS-fs (dm-0): warning: maximal mount count reached, running e2fsck is recommended
03:07:11:LDISKFS-fs (dm-0): mounted filesystem with ordered data mode. Opts:
03:07:11:LustreError: 166-1: MGC10.10.4.72@tcp: Connection to service MGS via nid 0@lo was lost; in progress operations using this service will fail.
03:07:11:Lustre: 3481:0:(ldlm_lib.c:633:target_handle_reconnect()) MGS: a1661115-9b9b-aae9-6c6f-3eb85b686ad4 reconnecting
03:07:11:LustreError: 3481:0:(obd_class.h:521:obd_set_info_async()) obd_set_info_async: dev 0 no operation
03:07:11:LustreError: 3484:0:(ldlm_lock.c:726:ldlm_lock_decref_internal_nolock()) ASSERTION( lock->l_writers > 0 ) failed:
03:07:11:LustreError: 3484:0:(ldlm_lock.c:726:ldlm_lock_decref_internal_nolock()) LBUG
03:07:12:Pid: 3484, comm: mgs_lustre_noti
03:07:12:
03:07:12:Call Trace:
03:07:12: [<ffffffffa043a835>] libcfs_debug_dumpstack+0x55/0x80 [libcfs]
03:07:12: [<ffffffffa043ad67>] lbug_with_loc+0x47/0xb0 [libcfs]
03:07:12: [<ffffffffa0687a75>] ldlm_lock_decref_internal_nolock+0x115/0x120 [ptlrpc]
03:07:12: [<ffffffffa068b370>] ldlm_lock_decref_internal+0x60/0x700 [ptlrpc]
03:07:12: [<ffffffffa068c21d>] ldlm_lock_decref_and_cancel+0x7d/0x120 [ptlrpc]
03:07:12: [<ffffffffa0aad49b>] mgs_completion_ast_ir+0xfb/0x110 [mgs]
03:07:12: [<ffffffffa06a3540>] ldlm_cli_enqueue_local+0x1f0/0x4d0 [ptlrpc]
03:07:12: [<ffffffffa0aad3a0>] ? mgs_completion_ast_ir+0x0/0x110 [mgs]
03:07:12: [<ffffffffa06a2670>] ? ldlm_blocking_ast+0x0/0x130 [ptlrpc]
03:07:12: [<ffffffffa0aad2ac>] mgs_revoke_lock+0x13c/0x230 [mgs]
03:07:12: [<ffffffffa06a2670>] ? ldlm_blocking_ast+0x0/0x130 [ptlrpc]
03:07:12: [<ffffffffa0aad3a0>] ? mgs_completion_ast_ir+0x0/0x110 [mgs]
03:07:12: [<ffffffffa04444f1>] ? libcfs_debug_msg+0x41/0x50 [libcfs]
03:07:12: [<ffffffffa0ac348c>] mgs_ir_notify+0x11c/0x230 [mgs]
03:07:12: [<ffffffff8105e7f0>] ? default_wake_function+0x0/0x20
03:07:13: [<ffffffffa0ac3370>] ? mgs_ir_notify+0x0/0x230 [mgs]
03:07:13: [<ffffffff8100c14a>] child_rip+0xa/0x20
03:07:13: [<ffffffffa0ac3370>] ? mgs_ir_notify+0x0/0x230 [mgs]
03:07:13: [<ffffffffa0ac3370>] ? mgs_ir_notify+0x0/0x230 [mgs]
03:07:13: [<ffffffff8100c140>] ? child_rip+0x0/0x20
03:07:13:
03:07:13:Kernel panic - not syncing: LBUG