Volker Halle wrote:

>
> the process is busy waiting for an IO to finish on file HOPAK$DNA2:(288,1,0) <- this is the file ID.

The file at which it hangs is always know to me. but it seems each time
another one. It looks like a "random" location

>
> SDA> SHOW DEV DNA2: should list the current IRP address

IRP address 82962180

>
> SDA> READ SYSDEF
> SDA> FORMAT <irp address>
>

SDA> READ SYSDEF
SDA> FORMAT 82962180
FFFFFFFF.82962180 IRP$L_IOQFL 82977D80
FFFFFFFF.82962184 IRP$L_IOQBL 827463F8
UCB+008
FFFFFFFF.82962188 IRP$W_SIZE 0230
FFFFFFFF.8296218A IRP$B_TYPE 0A
FFFFFFFF.8296218B IRP$B_RMOD 47
FFFFFFFF.8296218C IRP$L_PID 00010046
SYS$K_6
FFFFFFFF.82962190 IRP$L_ACB64X_OFFSET 00000028
IRP$Q_PARAM_0
FFFFFFFF.82962194 00000000
FFFFFFFF.82962198 IRP$L_ACB_FLAGS 00000012
IRP$Q_PARAM_1
FFFFFFFF.8296219C IRP$L_THREAD_PID 00010046
SYS$K_6
FFFFFFFF.829621A0 IRP$L_KAST 8276AAC0
IRP$L_MIRP
IRP$L_WIND
FFFFFFFF.829621A4 IRP$L_UCB 82746340 UCB
FFFFFFFF.829621A8 IRP$L_CTXB 00054620
OPCCRA0
IRP$L_IIRP_P0
IRP$L_SHD_IOFL
IRP$PQ_ACB64_AST
FFFFFFFF.829621AC 00000000
FFFFFFFF.829621B0 IRP$L_HRB 0269F040
IRP$L_IIRP_P1
IRP$L_MV_TMO
IRP$L_SHAD
IRP$Q_ACB64_ASTPRM
FFFFFFFF.829621B4 00000000
FFFFFFFF.829621B8 IRP$Q_USER_THREAD_ID 00000000.00000000
FFFFFFFF.829621C0 IRP$B_EFN 14
FFFFFFFF.829621C1 IRP$B_PRI 3C
FFFFFFFF.829621C2 IRP$B_CLN_INDX 00
FFFFFFFF.829621C3 IRP$B_WLG_FLAGS 00
FFFFFFFF.829621C4 IRP$L_CHAN 00000210
FFFFFFFF.829621C8 IRP$L_CLN_WLE 0269F058
IRP$L_IIRP_P2
IRP$PQ_IOSB
IRP$Q_PARAM_2
FFFFFFFF.829621CC 00000000
FFFFFFFF.829621D0 IRP$L_STS 00008012
IRP$L_STS_OVERLAY
IRP$Q_STATUS
IRP$R_STS_BITS
FFFFFFFF.829621D4 IRP$L_STS2 00000300
FFFFFFFF.829621D8 IRP$PQ_VA_PTE FFFFFEFC.000051C8
FFFFFFFF.829621E0 IRP$L_SVAPTE 82962208
IRP+008
IRP$PS_BUFIO_PKT
FFFFFFFF.829621E4 IRP$L_BCNT 00007C00
FFFFFFFF.829621E8 IRP$L_BOFF 00000110
FFFFFFFF.829621EC IRP$L_ABOFF 00000110
IRP$L_OBOFF
FFFFFFFF.829621F0 IRP$L_EXTEND 00000000
FFFFFFFF.829621F4 IRP$PS_ALTDDT 00000000
IRP$PS_FDT_CONTEXT
FFFFFFFF.829621F8 IRP$R_DIOBM 00000004.00000000
FFFFFFFF.82962200 00000008.1F790058
FFFFFFFF.82962208 00003DF8.0016FF09
FFFFFFFF.82962210 000035C2.0016FF09
FFFFFFFF.82962218 000035C1.0016FF09
FFFFFFFF.82962220 000056C2.0016FF09
FFFFFFFF.82962228 00000000.00000000
... ...
FFFFFFFF.82962250 IRP$L_IOST1 08B2A4FA
IRP$L_MEDIA
FFFFFFFF.82962254 IRP$B_CARCON 00
IRP$L_IOST2
IRP$L_TT_TERM
IRP$W_SHD_COPY_TYPE
IRP$W_SHD_VUN
FFFFFFFF.82962255 00
FFFFFFFF.82962256 IRP$W_SHD_DEV_TYPE 0000
IRP$W_SHD_MSCP_DISK_MODIFIER
FFFFFFFF.82962258 IRP$L_ABCNT 00000000
IRP$Q_NT_PRVMSK
IRP$Q_STATION
IRP$Q_TT_STATE
FFFFFFFF.8296225C IRP$L_OBCNT 00007C00
FFFFFFFF.82962260 IRP$L_FUNC 0000000C
FFFFFFFF.82962264 00000000
FFFFFFFF.82962268 IRP$L_SEGVBN 0004C01B
OPCCRAB
IRP$Q_SEGVBN
FFFFFFFF.8296226C 00000000
FFFFFFFF.82962270 IRP$L_DIAGBUF 82962208
IRP+008
IRP$L_SCB_BUF
IRP$W_TT_PRMPT
FFFFFFFF.82962274 IRP$L_DCD_SRC_UCB 017033A5
IRP$L_SEQNUM
FFFFFFFF.82962278 IRP$L_ARB 00000000
FFFFFFFF.8296227C IRP$B_CPY_MODE 00
IRP$L_KEYDESC
IRP$L_WLE_PTR
FFFFFFFF.8296227D 000000
FFFFFFFF.82962280 IRP$PS_KPB 82B821C0
FFFFFFFF.82962284 IRP$PS_CCB 7FF7C400
FFFFFFFF.82962288 IRP$L_QIO_P1 01472110
IRP$Q_QIO_P1
FFFFFFFF.8296228C 00000000
FFFFFFFF.82962290 IRP$L_QIO_P2 00007C00
IRP$Q_QIO_P2
IRP$Q_QIO_P2
FFFFFFFF.82962294 00000000
FFFFFFFF.82962298 IRP$L_QIO_P3 0004C01B
OPCCRAB
IRP$Q_PARAM_3
IRP$Q_QIO_P3
FFFFFFFF.8296229C 00000000
FFFFFFFF.829622A0 IRP$L_QIO_P4 00000000
IRP$Q_QIO_P4
FFFFFFFF.829622A4 00000000
FFFFFFFF.829622A8 IRP$L_QIO_P5 00000000
IRP$Q_QIO_P5
FFFFFFFF.829622AC 00000000
FFFFFFFF.829622B0 IRP$L_QIO_P6 00000000
IRP$Q_QIO_P6
FFFFFFFF.829622B4 00000000
FFFFFFFF.829622B8 IRP$Q_LBN_64 00000000.00000000
FFFFFFFF.829622C0 IRP$L_FQFL 00000000
FFFFFFFF.829622C4 IRP$L_FQBL 00000000
FFFFFFFF.829622C8 IRP$W_CDRPSIZE FEC0
FFFFFFFF.829622CA IRP$B_CD_TYPE 39
FFFFFFFF.829622CB IRP$B_FLCK 3A
FFFFFFFF.829622CC IRP$L_FPC 81D9F3E0
SCS$MS8
FFFFFFFF.829622D0 IRP$Q_FR3 FFFFFFFF.829AF9C0
FFFFFFFF.829622D8 IRP$Q_FR4 FFFFFFFF.825A8BB8
FFFFFFFF.829622E0 IRP$L_SAVD_RTN 00000000
FFFFFFFF.829622E4 IRP$L_MSG_BUF 00000000
FFFFFFFF.829622E8 IRP$L_RSPID 00000000
FFFFFFFF.829622EC IRP$L_CDT 8276BD90
FFFFFFFF.829622F0 IRP$Q_RES_WAIT_STATE 00000000.00000020
FFFFFFFF.829622F8 IRP$L_SCS_STALL_DATA 00000000
FFFFFFFF.829622FC IRP$L_RWCPTR 00000000
FFFFFFFF.82962300 IRP$L_BD_ADDR 00000000
FFFFFFFF.82962304 IRP$L_RBUN 00000000
FFFFFFFF.82962308 IRP$L_LBUFH_AD 00000000
FFFFFFFF.8296230C IRP$AR_PSB 8289EA40
FFFFFFFF.82962310 IRP$B_SHD_PIO_CNT 00
IRP$L_ERASE_VBN
IRP$L_LBOFF
IRP$Q_ERASE_VBN
IRP$T_LBUFHNDL
FFFFFFFF.82962311 IRP$B_SHD_PIO_ACT 00
FFFFFFFF.82962312 IRP$B_SHD_PIO_FLAGS 00
FFFFFFFF.82962313 IRP$B_SHD_PIO_ERRCNT 00
FFFFFFFF.82962314 IRP$B_SHD_PIO_ERRINDEX 00
IRP$L_CDRPFL
IRP$L_RBUFH_AD
FFFFFFFF.82962315 IRP$B_SHD_PIO_ERRSEV 00
FFFFFFFF.82962316 0000
FFFFFFFF.82962318 IRP$L_RBOFF 00000000
IRP$Q_SHD_LOCK_FR0
FFFFFFFF.8296231C IRP$L_UBARSRCE 00000000
IRP$L_XCT_LEN
FFFFFFFF.82962320 IRP$L_DUTUFLAGS 00000000
IRP$Q_SHD_LOCK_FR1
FFFFFFFF.82962324 IRP$W_DUTUCNTR BD80
FFFFFFFF.82962326 IRP$W_ENDMSGSIZ 8276
FFFFFFFF.82962328 IRP$L_PDT 00000000
IRP$Q_SHD_LOCK_FR2
FFFFFFFF.8296232C IRP$L_WALK_CDDB 00000000
FFFFFFFF.82962330 IRP$L_WALK_ALCLS 00000000
IRP$Q_SHD_LOCK_FR4
FFFFFFFF.82962334 IRP$L_WALK_SVPC 00000000
FFFFFFFF.82962338 IRP$L_LB_CDDB 00000000
IRP$Q_SHD_LOCK_FR5
FFFFFFFF.8296233C 00000000
FFFFFFFF.82962340 IRP$L_DUTU_RSVD1 00000000
IRP$L_SHD_LOCK_FPC
FFFFFFFF.82962344 IRP$L_DUTU_RSVD2 00000000
IRP$L_SHD_PIO_ERROR
IRP$L_WBM_RMTSND_STS
FFFFFFFF.82962348 IRP$L_DUTU_RSVD3 00000000
IRP$L_SHD_PIO_LNK
IRP$L_WBM_REFCNT
FFFFFFFF.8296234C IRP$L_DUTU_RSVD4 00000000
IRP$L_SHDSPC
FFFFFFFF.82962350 IRP$L_SHD_CONTROL_IRP 00000000
FFFFFFFF.82962354 IRP$L_SHD_TEMP 00000000
FFFFFFFF.82962358 IRP$Q_SHD_SAVED_R1 00000000.00000000
FFFFFFFF.82962360 IRP$Q_SHD_SAVED_R2 00000000.00000000
FFFFFFFF.82962368 IRP$Q_SHD_SAVED_R4 00000000.00000000
FFFFFFFF.82962370 IRP$L_SHD_SVD_CNT_IRP 00000000
FFFFFFFF.82962374 IRP$L_SHD_SAVED_STATUS 00000000
FFFFFFFF.82962378 IRP$L_SHD_WLG_MODE_FPC 00000000
FFFFFFFF.8296237C IRP$L_SHD_PERLKID 00000000
FFFFFFFF.82962380 IRP$L_SHD_EXPEL_TIMER 00000000
FFFFFFFF.82962384 IRP$L_SHD_EXPEL_FLAGS 00000008
FFFFFFFF.82962388 IRP$L_SHD_EXPEL_MASK 00000000
FFFFFFFF.8296238C 00000000
FFFFFFFF.82962390 IRP$Q_DATACHECKRETRYCOUNTER 00000000.00000000
IRP$Q_SHD_RESERV_Q8
FFFFFFFF.82962398 IRP$Q_CURRENT_CLONE 00000000.00000000
IRP$Q_SHD_RESERV_Q9
FFFFFFFF.829623A0 IRP$Q_SHD_RESERV_Q10 00000000.00000000
FFFFFFFF.829623A8 IRP$B_SHD_FLAGS 00
FFFFFFFF.829623A9 00000000.000000
IRP$C_LENGTH

> Is the console terminal 'broadcast enabled' ? The default for DECwindows may be to disable broadcasts. Any Mount-Verification messages in OPERATOR.LOG ?
>

I did a reply/enab=dev in a terminal window. I captured a
Mount-Verification message on another node but nothing on the machine on
which the USB is mounted.

> You may consider to start IO tracing ( see http://de.openvms.org/Spring2009/05-sda_extensions.html#IO ) in the runn9ing system, wait for the next hang, force a dump and then look at the IO trace in the dump...
>

I'm going to check that one.

regards
Jouk