2003 sp1 blue screen srv.sys

after installing sp1 on a server that is an a cluster I got this error STOP
0x0000004E PFN_LIST_CORRUPT I went through all of the documented procedures
to fix to no avail. I then went through the mem dump file and found the cause
was the srv.sys. I noticed the date on the file is the same date as the
service pack. I rolled back to no service pack and all is well. I want to
know if there is any known issue or fix for this. I wouldd like to get to sp1
if possible. any help would be great. thanks

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