[Info-vax] Processes hang on USB-access

[Joukj]

Volker Halle wrote:
> Jouk,
> 
> the data in the CURRENT IRP on DNA2: looks consistent:
> 
> ...
> FFFFFFFF.829621D0   IRP$L_STS 	 CCB_LOOKED_UP,FUNC,VIRT >>> 00008012
> ...
> FFFFFFFF.82962260   IRP$L_FUNC      IO$_READPBLK >>>	     0000000C
> ...
> FFFFFFFF.82962284   IRP$PS_CCB 		     >>>	     7FF7C400
> FFFFFFFF.82962288   IRP$L_QIO_P1  Buf addr   >>>	     01472110
> ...
> FFFFFFFF.82962290   IRP$L_QIO_P2  Length     >>>      	     00007C00
> ...
> FFFFFFFF.82962298   IRP$L_QIO_P3  start LBN  >>>	     0004C01B
> ...
> FFFFFFFF.829622CC   IRP$L_FPC 				     81D9F3E0   <<< what's at this address ?
> Try SDA> EXA/INS 81D9F3E0
> 
> FFFFFFFF.829622F0   IRP$Q_RES_WAIT_STATE   >>>	    00000000.00000020 ???
> LIB.REQ: 'SCS Resource Wait State'
> 
> This MAY be the key to this problem. Please force another crash after a hang. And look at the other (pending) IRPs on this device.
> 

on the running system without problems yet:


FFFFFFFF.829B7D8C   IRP$L_FPC                       00010036 
  UCB$M_S
HD_SEQCMD_PEND+00036

FFFFFFFF.829B7DB0   IRP$Q_RES_WAIT_STATE            00000000.00000020

so the 00000000.00000020 looks normal