DLm: DLmV0199E 및 btifc 드라이버 오류로 예기치 않은 VTE 재부팅

Summary: VTE가 예기치 않게 재부팅되어 일반적으로 ConnectHome 이벤트(DLmV0199E) 및 코어 덤프가 생성될 수 있습니다. 이 문제는 DLm 5.5.0.4 핫픽스 2에서 발견되었으며 DLm 5.5.0.4 핫픽스 1에도 영향을 미칠 수 있습니다.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

Symptoms

VTE가 경고 없이 재부팅될 수 있습니다.
ConnectHome에서 다음 이벤트가 보고될 수 있습니다. DLmV0199E – VTE unexpectedly restarted without a clean shutdown.

안으로 /var/log/messages, 다음과 유사한 항목이 관찰될 수 있습니다.

2025-09-23T18:14:35.718486-07:00 vte2 kernel: [37095220.390346] INFO: rcu_sched self-detected stall on CPU
2025-09-23T18:14:35.718502-07:00 vte2 kernel: [37095220.390351]   17-...: (15000 ticks this GP) idle=e46/140000000000001/0 softirq=1383296613/1383296613 fqs=7429 
2025-09-23T18:14:35.718504-07:00 vte2 kernel: [37095220.390351]    (t=15001 jiffies g=1259992788 c=1259992787 q=35986)
2025-09-23T18:14:35.718505-07:00 vte2 kernel: [37095220.390354] NMI backtrace for cpu 17
2025-09-23T18:14:35.718506-07:00 vte2 kernel: [37095220.390356] CPU: 17 PID: 19300 Comm: btifc_rxbufs/2 Tainted: G        W  OE      4.12.14-122.173-default #1 SLE12-SP5
2025-09-23T18:14:35.718525-07:00 vte2 kernel: [37095220.390357] Hardware name: Dell Inc. PowerEdge R740/0YWR7D, BIOS 2.19.1 06/04/2023
2025-09-23T18:14:35.718526-07:00 vte2 kernel: [37095220.390357] Call Trace:
2025-09-23T18:14:35.718526-07:00 vte2 kernel: [37095220.390359]  <IRQ>
2025-09-23T18:14:35.718527-07:00 vte2 kernel: [37095220.390365]  dump_stack+0x64/0x89
2025-09-23T18:14:35.718528-07:00 vte2 kernel: [37095220.390368]  nmi_cpu_backtrace+0x98/0xa0
2025-09-23T18:14:35.718529-07:00 vte2 kernel: [37095220.390371]  ? irq_force_complete_move+0x130/0x130
2025-09-23T18:14:35.718530-07:00 vte2 kernel: [37095220.390373]  nmi_trigger_cpumask_backtrace+0xdd/0x120
.
2025-09-23T18:14:35.718551-07:00 vte2 kernel: [37095220.390413]  ibtifc_ql_send_rx_buffers_thread+0x19/0x240 [btifc_commdrv]

Cause

FICON 드라이버의 소프트 잠금으로 인해 NMI가 트리거되고 재부팅됩니다.

Resolution

이 문제는 DLm 펌웨어 버전 V5.5.0.6 이상에서 해결되었습니다. 
 

Affected Products

Disk Library for mainframe DLm2500, Disk Library for mainframe DLm8500
Article Properties
Article Number: 000226065
Article Type: Solution
Last Modified: 30 Sep 2025
Version:  2
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