We have the same issue (Stop error 0x00000027) mentioned in KB .please see the following stack text from memory dump.So please answer to the question asap.On our servers we have already the KB 3000483 installed so i need to know still we need to go for KB978625 fix this ?

STACK_TEXT: 

fffffa60`1a82ec00 fffffa60`0338e7a9 : ffffffff`ffffffff fffffa80`98235e70 00000000`00000003 fffffa80`9632d8e0 : ksecdd!DeleteSecurityContext+0x4c

fffffa60`1a82ec40 fffffa60`0338ecd2 : fffffa80`9632d8e0 00000000`00000080 fffffa60`02f99110 fffffa80`9632d8e0 : mrxsmb!UninitializeSecurityContextForSession+0xb1

fffffa60`1a82ec70 fffffa60`02f7c2c9 : fffffa60`02f9a968 00000000`00000080 fffffa60`02f99110 fffffa80`9632d988 : mrxsmb!SmbCepTearDownSessionEntry+0x6a

fffffa60`1a82eca0 fffff800`01c64bd7 : fffffa60`02f9a968 fffffa60`02f9ad98 00000000`00000000 00000000`00000000 : rdbss!RxpWorkerThreadDispatcher+0x199

fffffa60`1a82ed50 fffff800`01a97446 : fffffa60`005f1180 fffffa80`97ff13c0 fffffa80`91e01bb0 fffffa60`005f1a70 : nt!PspSystemThreadStartup+0x57

fffffa60`1a82ed80 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiStartSystemThread+0x16