Which package rc.sysinit is in?

["Steven Liu" <stevenliu@psdc.com>]

Hi All:

With your help, I have cross-built and tested the util-linux-2.9s
package for my mips r3000 CPU under linux-2.2.12. The system crushed in
the program rc.sysinit with pid=8 when it was booting up.

What and where is rc.sysinit?

Thanks,

Steven Liu