节点因 lockdata 利用率过高而运行 OOM

Summary: 由于 lockdata 未释放已用内存，节点耗尽内存。

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Symptoms

节点显示出内存耗尽 （OOM） 的迹象，“lockdata”显示为高内存利用率。
在严重的情况下，节点可能会出现性能下降甚至崩溃。
这更有可能影响较低内存的节点，如 16 GB A200/2000 节点，但可能会影响较高的内存节点。

消息日志中的 OOM 消息示例，lockdata 显示为使用超过 3GB 的 top consumer--

2025-12-28T04:47:47.270517-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: Malloc Pigs:
2025-12-28T04:47:47.273671-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: Type                   InUse   MemUse   Requests
2025-12-28T04:47:47.275835-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: lockdata             3389051 3389051K 3716197873
2025-12-28T04:47:47.278575-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: 8kB dinodes           818152  670368K 29437430894
2025-12-28T04:47:47.281406-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: isi_hash               31612   92553K 16882805458
2025-12-28T04:47:47.283209-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: layout_hints          216930   67791K  506523261
2025-12-28T04:47:47.285766-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: iaddr_set             918679   57418K 76306136502
2025-12-28T04:47:47.289540-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: lbm super               8820   42195K  255485113
2025-12-28T04:47:47.291600-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: devbuf                 16994   37217K    2699236
2025-12-28T04:47:47.293557-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: bar_owner_vec259         301   32928K   11315960
2025-12-28T04:47:47.295987-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: newblk                     4   32768K   18925356
2025-12-28T04:47:47.299318-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: crc_vec200              7986   31867K  863150005
2025-12-28T04:47:47.301157-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: bam_alloc              34903   19302K 2500981635
2025-12-28T04:47:47.303032-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: ptr_llcb_map           99885   19299K 2274118968
2025-12-28T04:47:47.306277-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: inodedep                   4   16384K    7051517
2025-12-28T04:47:47.309572-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: ddvec84               216932   13621K 4596579001
2025-12-28T04:47:47.312698-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: sysctloid             216712   11835K     231785
2025-12-28T04:47:47.314522-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: Unshown bins account for 99614K
2025-12-28T04:47:47.316385-05:00 <0.4> EXAMPLE-24(id24) /boot/kernel.amd64/kernel: Total: 4634206K

检查节点可能会显示多个利用率较高的节点 --

martid32@elvis: /2026-01-12-003 $ grep lockdata */kern.malloc_pigs|sort -k3n
EXAMPLE-21/kern.malloc_pigs:lockdata               57883   57883K   33140621
EXAMPLE-24/kern.malloc_pigs:lockdata              179535  179535K  133252264
EXAMPLE-22/kern.malloc_pigs:lockdata              191116  191116K  134601448
EXAMPLE-15/kern.malloc_pigs:lockdata              201258  201258K  173115576
EXAMPLE-19/kern.malloc_pigs:lockdata              212236  212236K  145973662
EXAMPLE-16/kern.malloc_pigs:lockdata              223574  223574K  200913232
EXAMPLE-14/kern.malloc_pigs:lockdata              270028  270028K  212437579
EXAMPLE-12/kern.malloc_pigs:lockdata              810088  810088K  751687757
EXAMPLE-8/kern.malloc_pigs:lockdata              814480  814480K  820272423
EXAMPLE-20/kern.malloc_pigs:lockdata              861939  861939K  814769447
EXAMPLE-6/kern.malloc_pigs:lockdata             1002016 1002016K 1010428656
EXAMPLE-11/kern.malloc_pigs:lockdata             1043191 1043191K 1112512581
EXAMPLE-13/kern.malloc_pigs:lockdata             1052161 1052161K 1236223736
EXAMPLE-10/kern.malloc_pigs:lockdata             2287836 2287836K 2137296070
EXAMPLE-9/kern.malloc_pigs:lockdata             2287836 2287836K 2130601482
EXAMPLE-5/kern.malloc_pigs:lockdata             2288665 2288665K 2014785292
EXAMPLE-7/kern.malloc_pigs:lockdata             2290701 2290701K 2020741030
EXAMPLE-4/kern.malloc_pigs:lockdata             2291665 2291665K 2069854314
EXAMPLE-3/kern.malloc_pigs:lockdata             2293574 2293574K 2431882220
EXAMPLE-17/kern.malloc_pigs:lockdata             3554690 3554690K 3615677378
EXAMPLE-23/kern.malloc_pigs:lockdata             3554842 3554842K 3785712414
EXAMPLE-2/kern.malloc_pigs:lockdata             3566354 3566354K 3874955814
EXAMPLE-1/kern.malloc_pigs:lockdata             3567030 3567030K 3715078119

Cause

NFS 每文件实例 lockdata 是文件打开操作文件系统中的正常操作。
在某些情况下，它可能不会显示正确释放消耗的内存。
这可能会导致保留 3GB+ 未释放的内存，从而导致 lockdata 过度使用内存。 

Resolution

应执行一个或多个节点的主动重新启动，以释放内存 lockdata。
高速缓存的刷新显示不会带来任何改进。

检查活动群集上的内存利用率时，可以使用以下命令：

isi_for_array -s sysctl kern.malloc_pigs |grep lockdata

 

Affected Products

Isilon, PowerScale, PowerScale OneFS
Article Properties
Article Number: 000418874
Article Type: Solution
Last Modified: 20 تموز 2026
Version:  6
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