[Info-vax] Processes hang on USB-access

[Joukj]

Volker Halle wrote:
>> Correct stays the same on the hanging system 
>>
>> Now I get 
>>
>> FFFFFFFF.8299890C IRP$L_FPC 81DB3F50 SYS$DUDRIVER+17B50 
>>
>> and 
>>
>> SDA> exa/ins @81DB3F50 
>> %SDA-E-NOREAD, unable to access location 00000000.00003088 
>>
> 
> Now this does look like a fork-PC in DUDRIVER !
> 
> Try
> 
> SDA> EXA @81DB3F50        ! this looks like a procedure descriptor
> SDA> EXA                               ! should be the routine address
> SDA> EXA/INS @.                 ! first instruction in routine
> 
> Volker.

Problem is that the IRP$L_FPC is varying. Now I get on the running 
system with the USB hanging:

FFFFFFFF.82974FCC   IRP$L_FPC                       00000000


I'll try again at the next hang.