节点出现紧急情况、无法引导、出现引用 CPU 挂起、 MGWD 无响应或未找到引导设备的错误

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Category:: aff-series

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适用于

AFF-A200 | FAS2650
AFF-A220 | FAS2750
AFF-A300 | FAS8200
AFF-A700 | FAS9000
x3320a mSATA 启动设备

问题

启动设备可能会突然断开连接、 CPU 可能会挂起。
引导设备出现问题的节点将出现紧急情况或无法重新引导，我们将看到以下消息之一：

紧急字符串：

PANIC: thread (xxx) on cpu hung for 4001 milliseconds in process xxx

example:

PANIC: thread (swi4: clock) on cpu 0 hung for 4001 milliseconds in process swi4: clock on release 9.5P1 (C) on Thu Jun 11 03:41:13 EDT 2020

example:

PANIC: thread (md0.uzip) on cpu 0 hung for 4001 milliseconds in process md0.uzip on release 9.3P20 (C) on Tue Feb  2 22:28:58 JST 2021

Panic string: Process mgwd unresponsive for 620 seconds in process
PANIC: g_vfs_done(): rootfs.uzip read error - suspect boot device in process g_up on release 9.7P4 (C) on Tue Aug 11 02:55:33 EDT 2020

重新启动失败：

 Could not load fat://boot0/X86_64/freebsd/image1/kernel:Device not found ERROR: Error booting OS on: 'boot0' file: fat://boot0/X86_64/freebsd/image1 /kernel (boot0,fat)