#53 video and audio machine freeze

[George Estes]

The audio and video machines will freeze on a fairly
regular basis while running the RC2 linux software
(redhat-2001-0614-0732. When the audio machine freezes
it forms a continuous loop on the last few words
spoken. We have experience this problem on both our
production node in 5239BI and our portable node. I
can't yet validate this, but the freezes seem to be
triggered by events on the display machine. For
example, closing out the resource manager on the
display machine without first killing the resource
manager on the audio machine will cause the audio
machine to hang. Although it may be just coincidence
that this has happened a couple of time. I'm going to
experiment more with this.
The other thing I've notice is the longer the Node
runs the more buffer memory it uses. At start of a
session it's using about 80mb and by the end of an
hour session it's 300mb. Shared memory usage also
increases, but not nearly as much.

Below is some output info from our portable node audio
machine.
....................................
[agnode@ag-5239-audio agnode]$ ps auxw
USER PID %CPU %MEM VSZ RSS TTY STAT
START TIME COMMAND
root 1 0.1 0.0 1120 476 ? S
15:52 0:05 init [3]
root 2 0.0 0.0 0 0 ? SW
15:52 0:00 [kflushd]
root 3 0.0 0.0 0 0 ? SW
15:52 0:00 [kupdate]
root 4 0.0 0.0 0 0 ? SW
15:52 0:00 [kpiod]
root 5 0.0 0.0 0 0 ? SW
15:52 0:00 [kswapd]
root 6 0.0 0.0 0 0 ? SW<
15:52 0:00 [mdrecoveryd]
root 348 0.0 0.1 1208 540 ? S
15:53 0:00 /sbin/pump -i eth1
root 375 0.0 0.1 1172 552 ? S
15:54 0:00 syslogd -m 0
root 384 0.0 0.1 1472 804 ? S
15:54 0:00 klogd
daemon 398 0.0 0.0 1144 496 ? S
15:54 0:00 /usr/sbin/atd
root 412 0.0 0.1 1328 620 ? S
15:54 0:00 crond
root 421 0.0 0.2 2408 1204 ? S
15:54 0:00 sshd
root 439 0.0 0.2 1364 1364 ? SL
15:54 0:00 xntpd -A
root 477 0.0 0.0 1148 464 ? S
15:54 0:00 gpm -t ps/2
xfs 600 0.0 0.2 2296 1424 ? S
15:54 0:00 xfs -droppriv -daemon -port -1
root 617 0.0 0.2 2240 1136 tty1 S
15:54 0:00 login -- agnode

root 618 0.0 0.0 1092 412 tty2 S
15:54 0:00 /sbin/mingetty t
y2
root 619 0.0 0.0 1092 412 tty3 S
15:54 0:00 /sbin/mingetty t
y3
root 620 0.0 0.0 1092 412 tty4 S
15:54 0:00 /sbin/mingetty t
y4
root 621 0.0 0.0 1092 412 tty5 S
15:54 0:00 /sbin/mingetty t
y5
root 622 0.0 0.0 1092 412 tty6 S
15:54 0:00 /sbin/mingetty t
y6
agnode 625 0.0 0.1 1692 936 tty1 S
15:54 0:00 -bash
agnode 645 0.0 0.1 1644 772 tty1 S
15:54 0:00 sh /usr/X11R6/bi
/startx
agnode 652 0.0 0.1 2304 780 tty1 S
15:54 0:00 xinit /etc/X11/x
nit/xinitrc -- :0 -auth /home/agnode/.Xauthority
root 653 20.3 1.3 13256 6752 ? S
15:54 9:37 /etc/X11/X :0 -a
th /home/agnode/.Xauthority
agnode 657 0.0 0.5 5584 2668 tty1 S
15:54 0:00 /usr/bin/gnome-s
ssion
agnode 667 0.0 0.3 5436 1892 tty1 S
15:54 0:00 gnome-smproxy --
m-client-id default0
agnode 673 0.0 0.4 4304 2480 tty1 S
15:54 0:00 enlightenment -c
ientId default2
agnode 675 1.3 0.5 5920 2928 tty1 S
15:54 0:37 magicdev --sm-cl
ent-id=default12
agnode 690 0.0 0.2 2632 1252 ? S
15:54 0:00 gnome-name-servi
e
agnode 691 0.0 0.3 3184 1668 tty1 S
15:54 0:00 xscreensaver -no
splash -timeout 20 -nice 10
agnode 692 0.0 0.8 7040 4344 tty1 S
15:54 0:00 panel --sm-clien
-id default8
agnode 694 0.0 1.0 7948 5528 tty1 S
15:54 0:00 gmc --sm-client-
d default10
agnode 704 0.0 0.6 6056 3364 ? S
15:54 0:00 gnomepager_apple
--activate-goad-server gnomepager_applet
agnode 706 0.0 0.6 6012 3200 ? S
15:54 0:00 gen_util_applet
-activate-goad-server gen_util_applet
agnode 710 0.0 0.6 5664 3388 tty1 S
15:54 0:00 gnome-terminal
agnode 711 0.0 0.1 1144 536 tty1 S
15:54 0:00 gnome-pty-helper
agnode 712 0.0 0.1 1700 940 pts/0 S
15:54 0:00 bash
agnode 722 0.0 0.1 1444 744 pts/0 S
15:54 0:00 aumix
agnode 790 1.0 0.6 5664 3384 tty1 R
16:41 0:00 gnome-terminal
agnode 791 0.0 0.1 1144 536 tty1 S
16:41 0:00 gnome-pty-helper
agnode 792 0.2 0.1 1700 940 pts/1 S
16:41 0:00 bash
agnode 802 0.0 0.1 2340 708 pts/1 R
16:41 0:00 ps auxw
.......................................

[agnode@ag-5239-audio agnode]$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 8
model name : Pentium III (Coppermine)
stepping : 6
cpu MHz : 866.376
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 3
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8
apic sep mtrr pge mca cmov pat pse36 pn mmx fxsr xmm
bogomips : 1730.15
....................................

agnode@ag-5239-audio agnode]$ /sbin/lspci -v
00:00.0 Host bridge: VIA Technologies, Inc. VT82C691
[Apollo PRO] (rev c4)
Flags: bus master, medium devsel, latency 0
Memory at d0000000 (32-bit, prefetchable)
Capabilities: <available only to root>

00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598
[Apollo MVP3 AGP] (prog-if 00 [Normal decode])
Flags: bus master, 66Mhz, medium devsel,
latency 0
Bus: primary=00, secondary=01, subordinate=01,
sec-latency=0
Capabilities: <available only to root>

00:06.0 VGA compatible controller: ATI Technologies
Inc: Unknown device 4752 (rev 27) (prog-if 00 [VGA])
Flags: bus master, stepping, medium devsel,
latency 32, IRQ 11
Memory at d2000000 (32-bit, non-prefetchable)
I/O ports at f000
Memory at d4200000 (32-bit, non-prefetchable)
Capabilities: <available only to root>

00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686
[Apollo Super] (rev 40)
Subsystem: VIA Technologies, Inc.: Unknown
device 0000
Flags: bus master, stepping, medium devsel,
latency 0
Capabilities: <available only to root>

00:07.1 IDE interface: VIA Technologies, Inc. VT82C586
IDE [Apollo] (rev 06) (pr
og-if 8a [Master SecP PriP])
Subsystem: VIA Technologies, Inc.: Unknown
device 0571
Flags: bus master, medium devsel, latency 32
I/O ports at d400
Capabilities: <available only to root>

00:07.4 Host bridge: VIA Technologies, Inc. VT82C686
[Apollo Super ACPI] (rev 40
)
Flags: medium devsel
Capabilities: <available only to root>

00:0d.0 Ethernet controller: Intel Corporation 82557
[Ethernet Pro 100] (rev 08)
Subsystem: Intel Corporation EtherExpress
PRO/100+ Management Adapter
Flags: bus master, medium devsel, latency 32,
IRQ 10
Memory at d4202000 (32-bit, non-prefetchable)
I/O ports at e000
Memory at d4000000 (32-bit, non-prefetchable)
Capabilities: <available only to root>

00:0e.0 Ethernet controller: Intel Corporation 82557
[Ethernet Pro 100] (rev 08)
Subsystem: Intel Corporation EtherExpress
PRO/100+ Management Adapter
Flags: bus master, medium devsel, latency 32,
IRQ 5
Memory at d4201000 (32-bit, non-prefetchable)
I/O ports at e400
Memory at d4100000 (32-bit, non-prefetchable)
Expansion ROM at d3000000
Capabilities: <available only to root>

00:0f.0 Multimedia audio controller: Ensoniq: Unknown
device 5880 (rev 02)
Subsystem: Ensoniq: Unknown device 8001
Flags: bus master, slow devsel, latency 64,
IRQ 10
I/O ports at e800
Capabilities: <available only to root>

00:11.0 SCSI storage controller: Adaptec 7892A (rev 02)
Subsystem: Adaptec: Unknown device e2a0
Flags: bus master, 66Mhz, medium devsel,
latency 32, IRQ 11
BIST result: 00
I/O ports at ec00
Memory at d4203000 (64-bit, non-prefetchable)
Capabilities: <available only to root>
...........................................
[agnode@ag-5239-audio agnode]$ cat /proc/meminfo
total: used: free: shared: buffers:
cached:
Mem: 529223680 401805312 127418368 44621824 328335360
36790272
Swap: 73986048 0 73986048
MemTotal: 516820 kB
MemFree: 124432 kB
MemShared: 43576 kB
Buffers: 320640 kB
Cached: 35928 kB
BigTotal: 0 kB
BigFree: 0 kB
SwapTotal: 72252 kB
SwapFree: 72252 kB