PowerPath 6.1が起動時にASMlibエラーを引き起こす

Summary: 起動中に、自動ストレージ管理ライブラリー(ASMlib)は、重複したsysfsとkobject_add_internal-EEXISTスタック トレースを報告します。PowerPath 6.1の1つずれの問題で、同じパーティションが2回登録されます。

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Symptoms

Oracle ASMlibで起動すると、次のメッセージが表示されることがあります。

Scanning the system form Oracle ASMLib disks : kobject_add_internal failed for sdX1 with --EEXIST, don’t try and register things with the same name in the same directory.
sdX: p1 could not be added: 17"
システム エラーのスキャン中

メッセージには、同様のスタックが表示されます。

Feb 4 14:05:28 linux21758 kernel: -----------[ cut here ]-----------
Feb 4 14:05:28 linux21758 kernel: WARNING: at fs/sysfs/dir.c:512 sysfs_add_one+0xb8/0xd0() (Tainted: P   ------------ )
Feb 4 14:05:28 linux21758 kernel: Hardware name: ProLiant DL385 G1
Feb 4 14:05:28 linux21758 kernel: sysfs: cannot create duplicate filename '/devices/pci0000:04/0000:04:09.0/0000:05:08.0/host2/rport-2:0-1/target2:0:1/2:0:1:5/block/sdv/sdv1'
Feb 4 14:05:28 linux21758 kernel: Modules linked in: oracleasm(U) autofs4 8021q garp stp llc cpufreq_ondemand powernow_k8 freq_table mperf ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 emcpdm(P)(U) emcpgpx(P)(U) emcpmpx(P)(U) emcp(P)(U) vhost_net macvtap macvlan tun uinput microcode tg3 ptp pps_core joydev hpilo hpwdt sg k8temp amd64_edac_mod edac_core edac_mce_amd i2c_amd756 i2c_core amd_rng shpchp ext4 jbd2 mbcache sd_mod crc_t10dif sr_mod cdrom cciss qla2xxx scsi_transport_fc scsi_tgt pata_acpi ata_generic pata_amd dm_mirror dm_region_hash dm_log dm_mod [last unloaded: emcpioc]
Feb 4 14:05:28 linux21758 kernel: Pid: 1867, comm: MpxTestDaemon Tainted: P   ------------ 2.6.32-642.el6.x86_64 #1
Feb 4 14:05:28 linux21758 kernel: Call Trace:
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8107c911>] ? warn_slowpath_common+0x91/0xe0
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8107ca16>] ? warn_slowpath_fmt+0x46/0x60
Feb 4 14:05:28 linux21758 kernel: [<ffffffff81219388>] ? sysfs_add_one+0xb8/0xd0
Feb 4 14:05:28 linux21758 kernel: [<ffffffff81219408>] ? create_dir+0x68/0xb0
Feb 4 14:05:28 linux21758 kernel: [<ffffffff81219489>] ? sysfs_create_dir+0x39/0x50
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8129bc39>] ? kobject_add_internal+0xb9/0x260
Feb 4 14:05:28 linux21758 kernel: [<ffffffff81187004>] ? pcpu_alloc_area+0x234/0x350
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8129bee8>] ? kobject_add_varg+0x38/0x60
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8129bfc4>] ? kobject_add+0x44/0x70
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8129ba6a>] ? kobject_get+0x1a/0x30
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8137d699>] ? device_add+0xc9/0x650
Feb 4 14:05:28 linux21758 kernel: [<ffffffff81387112>] ? pm_runtime_init+0xd2/0xe0
Feb 4 14:05:28 linux21758 kernel: [<ffffffff81212f16>] ? add_partition+0x206/0x320
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa02e31e6>] ? emcpInitPartitions+0xf6/0x100 [emcp]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa02e335f>] ? emcpFixupPartitionTables+0x16f/0x180 [emcp]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa0463612>] ? MpxLnxCleanup+0x232/0x5a0 [emcpmpx]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa047388e>] ? MpxIodoneUp+0x1fe/0x730 [emcpmpx]
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8106c732>] ? default_wake_function+0x12/0x20
Feb 4 14:05:28 linux21758 kernel: [<ffffffff810a6ad6>] ? autoremove_wake_function+0x16/0x40
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8105ed99>] ? __wake_up_common+0x59/0x90
Feb 4 14:05:28 linux21758 kernel: [<ffffffff810635d3>] ? __wake_up+0x53/0x70
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa02e0394>] ? PowerPutSema+0x54/0x80 [emcp]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa048ba28>] ? MpxTestDaemonCalloutGuts+0x258/0x460 [emcpmpx]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa048bc30>] ? MpxTestDaemonCallout+0x0/0x10 [emcpmpx]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa02e45e0>] ? PxDestroyDaemonThreadCallout+0x0/0x70 [emcp]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa048bc3e>] ? MpxTestDaemonCallout+0xe/0x10 [emcpmpx]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa02ea1a2>] ? PowerServiceDaemonQ+0x62/0xf0 [emcp]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa02ea24e>] ? PowerDaemonStart+0x1e/0x30 [emcp]
Feb 4 14:05:28 linux21758 kernel: [<ffffffff810743fa>] ? schedule_tail+0x2a/0xb0
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8100c28a>] ? child_rip+0xa/0x20
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa02ea230>] ? PowerDaemonStart+0x0/0x30 [emcp]
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8100c280>] ? child_rip+0x0/0x20
Feb 4 14:05:28 linux21758 kernel: --[ end trace 7738f94320d4cae7 ]--
Feb 4 14:05:28 linux21758 kernel: kobject_add_internal failed for sdv1 with -EEXIST, don't try to register things with the same name in the same directory.
Feb 4 14:05:28 linux21758 kernel: Pid: 1867, comm: MpxTestDaemon Tainted: P W   ------------ 2.6.32-642.el6.x86_64 #1
Feb 4 14:05:28 linux21758 kernel: Call Trace:
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8129bcdd>] ? kobject_add_internal+0x15d/0x260
Feb 4 14:05:28 linux21758 kernel: [<ffffffff81187004>] ? pcpu_alloc_area+0x234/0x350
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8129bee8>] ? kobject_add_varg+0x38/0x60
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8129bfc4>] ? kobject_add+0x44/0x70
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8129ba6a>] ? kobject_get+0x1a/0x30
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8137d699>] ? device_add+0xc9/0x650
Feb 4 14:05:28 linux21758 kernel: [<ffffffff81387112>] ? pm_runtime_init+0xd2/0xe0
Feb 4 14:05:28 linux21758 kernel: [<ffffffff81212f16>] ? add_partition+0x206/0x320
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa02e31e6>] ? emcpInitPartitions+0xf6/0x100 [emcp]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa02e335f>] ? emcpFixupPartitionTables+0x16f/0x180 [emcp]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa0463612>] ? MpxLnxCleanup+0x232/0x5a0 [emcpmpx]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa047388e>] ? MpxIodoneUp+0x1fe/0x730 [emcpmpx]
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8106c732>] ? default_wake_function+0x12/0x20
Feb 4 14:05:28 linux21758 kernel: [<ffffffff810a6ad6>] ? autoremove_wake_function+0x16/0x40
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8105ed99>] ? __wake_up_common+0x59/0x90
Feb 4 14:05:28 linux21758 kernel: [<ffffffff810635d3>] ? __wake_up+0x53/0x70
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa02e0394>] ? PowerPutSema+0x54/0x80 [emcp]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa048ba28>] ? MpxTestDaemonCalloutGuts+0x258/0x460 [emcpmpx]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa048bc30>] ? MpxTestDaemonCallout+0x0/0x10 [emcpmpx]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa02e45e0>] ? PxDestroyDaemonThreadCallout+0x0/0x70 [emcp]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa048bc3e>] ? MpxTestDaemonCallout+0xe/0x10 [emcpmpx]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa02ea1a2>] ? PowerServiceDaemonQ+0x62/0xf0 [emcp]
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa02ea24e>] ? PowerDaemonStart+0x1e/0x30 [emcp]
Feb 4 14:05:28 linux21758 kernel: [<ffffffff810743fa>] ? schedule_tail+0x2a/0xb0
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8100c28a>] ? child_rip+0xa/0x20
Feb 4 14:05:28 linux21758 kernel: [<ffffffffa02ea230>] ? PowerDaemonStart+0x0/0x30 [emcp]
Feb 4 14:05:28 linux21758 kernel: [<ffffffff8100c280>] ? child_rip+0x0/0x20
Feb 4 14:05:28 linux21758 kernel: emcpowerf: emcpowerf1

 

Cause

PowerPathコードで、異なるスレッドを使用してパーティションの追加を2回実行しようとしているというoff-by-oneエラーが発生しました。

この状況ではホストに影響はありませんが、スタックとメッセージが表示されます。

 

Resolution

この修正プログラムは、PowerPath 6.2 GAリリースに含まれる予定です。

 

Proprietăți articol
Article Number: 000167442
Article Type: Solution
Ultima modificare: 05 feb. 2026
Version:  4
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