修改/etc/system文件导致系统panic

wenzi0131

1. 系统重启时panic信息
Boot device: /pci@400/pci@2/pci@0/pci@4/scsi@0/disk@w3cf7b4882cf0db52,0:a  File and args:
SunOS Release 5.10 Version Generic_150400-03 64-bit
Copyright (c) 1983, 2013, Oracle and/or its affiliates. All rights reserved.
Cannot assemble drivers for root /pci@400/pci@2/pci@0/pci@4/scsi@0/disk@w3cf7b4882cf0db52,0:a
Cannot mount root on /pci@400/pci@2/pci@0/pci@4/scsi@0/disk@w3cf7b4882cf0db52,0:a fstype ufs

panic[cpu0]/thread=180e000: vfs_mountroot: cannot mount root

000000000180b950 genunix:vfs_mountroot+370 (19c3800, 19ee800, 0, 12b6800, 19c7800, 6)
  %l0-3: 00000300050fe000 00000000019bad50 0000000001159400 0000000001a1e400
  %l4-7: 0000000000000600 0000000000000200 0000000000000800 0000000000000200
000000000180ba10 genunix:main+10c (1a12400, 180c000, 19114c0, 10c4c00, 0, 1914270)
  %l0-3: 0000000000000001 0000000070002000 0000000070002000 0000000000000000
  %l4-7: 000000000193b000 0000000000000000 0000000001867c00 0000000001867cc0

skipping system dump - no dump device configured
rebooting...

2./etc/system新增加的内容如下：
...
*nxup_driver_start
forceload: drv/sd
forceload: drv/ssd
forceload: drv/nxup
*nxup_driver_end
...

注：drv/nxup是我们开发的一个驱动文件

请帮忙看下这个现象会是什么原因导致的，谢谢~！！

wenzi0131

注释掉/etc/system下新增加的内容可以正常启动