Connectrix MDS 9148S 重新開機，無法處理針對地址為 0x0000003c 的資料的核心分頁要求

Summary: Connectrix MDS 9148S 重新開機，無法處理在位址為 0x0000003c 的核心分頁要求。

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Symptoms

在 8.4（2d） 上執行的交換器 MDS 9148S 因核心錯誤而重新開機。 
`show system reset-reason module 1`
----- reset reason for Supervisor-module 1 (from Supervisor in slot 1) ---
1) At 952261 usecs after Mon Apr 24 05:28:51 2023
    Reason: Kernel Panic
    Service:
    Version: 8.4(2d)
No cores saved.
命令 show system internal kernel nvram-messages previous 輸出顯示如下： 
Unable to handle kernel paging request for data at address 0x0000003c
Faulting instruction address: 0xc02358cc
KGDB: Waiting for remote debugger
Start stack dumping
Moving to kernel stack
Done stack dumping
Start register dumping
Done register dumping
Done all dumping 4586 8196
**** KERNEL PANIC OCCURED*******
Writing reset reason. Irqs 1
Writing stack trace
Writing kernel traces
Starting dump of trace eventsTrace events filled bufferFinished dump of trace eventsin.dcos-telnetd:18248 /debugfs/tracing/per_cpu/cpu0/trace_pipe_raw read done, size 3010560
in.dcos-telnetd:18248 /debugfs/tracing/per_cpu/cpu1/trace_pipe_raw read done, size 3084288
Buffer read= 2089152
Resetting board
命令 show accounting log 指示同時配置終端寬度和終端長度，然後關閉會話。 
Mon Apr 24 05:20:52 2023:type=update:id=10.x.x.x@pts/1:user=scripten:cmd=terminal width 511 (SUCCESS)
Mon Apr 24 05:20:52 2023:type=update:id=10.x.x.x@pts/1:user=scripten:cmd=terminal length 0 (SUCCESS)
Mon Apr 24 05:20:53 2023:type=update:id=10.x.x.x@pts/2:user=SRVC_A006AC_0004_PRD:cmd=terminal session-timeout 60 (SUCCESS)
Mon Apr 24 05:20:53 2023:type=update:id=10.x.x.x@pts/2:user=SRVC_A006AC_0004_PRD:cmd=terminal length 0 (SUCCESS)
Mon Apr 24 05:21:05 2023:type=stop:id=10.x.x.x@pts/1:user=scripten:cmd=shell terminated because the ssh session closed
Mon Apr 24 05:25:49 2023:type=stop:id=10.x.x.x@pts/2:user=SRVC_A006AC_0004_PRD:cmd=shell terminated because the ssh session closed

Cause

上述研究結果指出問題是由於 Cisco 問題 CSCwe09965 而發生，https://bst.cisco.com/bugsearch/bug/CSCwe09965此超連結會帶您前往 Dell Technologies 以外的網站。 （需要登入 Cisco 才能檢視文章）

症狀：
MDS 9148S 交換器因核心錯誤而重新載入。顯示的原因如下 show system reset-reason 命令是：原因：核心錯誤
進一步的問題說明：
此問題的觸發因素不明。內核錯誤會導致系統重新載入，並在重新載入期間中斷流量。
景：
此問題適用於任何 MDS 平台。

Resolution

因應措施：
避免在關閉會話時並行設置終端寬度或長度。

請勿同時設定終端寬度和終端長度，然後關閉工作階段或避免使用任何會保持設定終端寬度與長度的指令檔。

主意：
此問題已在 8.4（2f）、9.3.1 和 9.4.x 版本中解決。

Affected Products

Connectrix MDS-9148S
Article Properties
Article Number: 000212786
Article Type: Solution
Last Modified: 28 May 2025
Version:  4
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