strange behaviour dsmc (AIX)

Hi,

after doing a simple selective backup (dsmc selective /ssa/home04/sscphenk),
some strange things happens:

08/18/97   16:43:35  ANR0400I Session 2994 started for node ISIS-S315 (AIX).
08/18/97   16:46:59  ANR8337I 3590 volume 000587 mounted in drive 3590-2
                      (/dev/rmt2).
08/18/97   16:48:00  ANR9999D pkshmem.c(753): Warning: attempt to free out of
                      range aligned block: Heap=3: Address=704C0000,
                      Low=60000000, High=6005FFFF.
08/18/97   16:48:12  ANR9999D pkshmem.c(753): Warning: attempt to free out of
                      range aligned block: Heap=3: Address=70580000,
                      Low=60000000, High=6005FFFF.
08/18/97   16:48:45  ANR8337I 3590 volume 000522 mounted in drive 3590-0
                      (/dev/rmt0).
08/18/97   16:49:11  ANR9999D pkshmem.c(753): Warning: attempt to free out of
                      range aligned block: Heap=3: Address=705C0000,
                      Low=60000000, High=6005FFFF.
08/18/97   16:49:12  ANR9999D pkshmem.c(753): Warning: attempt to free out of
                      range aligned block: Heap=3: Address=70640000,
                      Low=60000000, High=6005FFFF.
08/18/97   16:49:45  ANR8337I 3590 volume 000529 mounted in drive 3590-1
                      (/dev/rmt1).
08/18/97   16:49:51  ANR9999D pkshmem.c(753): Warning: attempt to free out of
                      range aligned block: Heap=3: Address=70680000,
                      Low=60000000, High=6005FFFF.
08/18/97   16:49:52  ANR0403I Session 2994 ended for node ISIS-S315 (AIX).

So, first volume 000587 is used:
adsm> q mount
ANR8330I 3494-3590 volume 000587 is mounted R/W in drive 3590-2 (/dev/rmt2),
status: IN USE.
ANR8334I   1 volumes found.

Then after the two ANR9999D volume 000522 is mounted:
dsm> q mount
ANR8330I 3494-3590 volume 000587 is mounted R/W in drive 3590-2 (/dev/rmt2),
status: IN USE.
ANR8330I 3494-3590 volume 000522 is mounted R/O in drive 3590-0 (/dev/rmt0),
status: IN USE.
ANR8334I   2 volumes found.

And after the next two ANR9999D volume 000529 is mounted:
adsm> q mount
ANR8329I 3494-3590 volume 000587 is mounted R/W in drive 3590-2 (/dev/rmt2),
status: IN USE.
ANR8329I 3494-3590 volume 000522 is mounted R/O in drive 3590-0 (/dev/rmt0),
status: IDLE.
ANR8329I 3494-3590 volume 000529 is mounted R/O in drive 3590-1 (/dev/rmt1),
status: IN USE.
ANR8334I   3 volumes found.

q vol 000587 f=d gives:
                 Volume Status: Filling
     Approx. Date Last Written: 08/18/97   16:49:51
        Approx. Date Last Read: 08/18/97   07:39:22

q vol 000522 f=d gives:
                 Volume Status: Full
     Approx. Date Last Written: 07/02/97   19:36:06
        Approx. Date Last Read: 08/18/97   16:48:45

q vol 000539 f=d gives:
                 Volume Status: Full
     Approx. Date Last Written: 08/18/97   08:42:29
        Approx. Date Last Read: 08/18/97   16:49:45

Anyone seen this before?

(running ADSM V2.1.0.13 on a SP2 (AIX 4.1.4.0) using 3494 with 4 3590 units,
 backup/archive client's 2.1.0.6 on AIX 3.2, AIX 4.1.4, SunOs, Solaris,
 IRIX, Win95, WinNT, HSM client's 2.1.0.6 on AIX 4.1.4.0)

Regards,

Henk ten Have                   SARA, Academic Computing Services Amsterdam
Systems Programmer              Kruislaan 415
E-mail: hthta AT sara DOT nl           1098 SJ Amsterdam
Phone : +31205923000            The Netherlands