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[linux-dvb] Dvb kernel w/Nebula chewing CPU time



I'm running the latest dvb-kernel CVS with a Nebula DigiTV card,
and *some of the time* when I load the kernel modules, the CPU
usage jumps to around 50% CPU time, with nothing actually running
or even accessing the card. Then some of the time, this stops.

Rmmoding the modules makes the CPU usage go back to normal. Loading
them again reintroduces the problem.

Even when the cpu usage is abnormal, the dvb devices can be accessed,
but there is significant loss of data leading to broken video
and audio. When it's normal, no such problems.

nforce2 M/b with RH9 and 2.4.22 kernel, APIC disabled.

Anyone got any ideas?

Example - output from "top":

83 processes: 82 sleeping, 1 running, 0 zombie, 0 stopped
CPU states:   0.0% user  48.2% system   0.0% nice   0.0% iowait  51.7% idle

lsmod output

Module                  Size  Used by    Tainted: P
dvb-bt8xx               5348   0  (unused)
bt878                   7568   0  [dvb-bt8xx]
nxt6000                 8684   1
dvb-core               51920   0  [dvb-bt8xx nxt6000]
bttv                  112736   0  [dvb-bt8xx bt878]
video-buf              16208   0  [bttv]
videodev                9216   2  [bttv]
v4l1-compat            13508   0  (unused)
i2c-algo-bit            8776   1  [bttv]
btcx-risc               3560   0  [bttv]
v4l2-common             5376   0  [bttv]
i2c-core               19044   0  [dvb-bt8xx bttv i2c-algo-bit]
ide-cd                 35392   0  (autoclean)
cdrom                  33216   0  (autoclean) [ide-cd]
etc....



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Clyde Stubbs                     |            HI-TECH Software
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