Premption issue?

[luke]

While running yesterday's git version, on kernel 2.6.24.7, I am having the 
following issue.

While playing a sound file (mp3 or headerless CPM (.cdr format)), using 
ALSA's sound drivers, and sox's play utility, I have the audio completely 
stop for 1 to 2 seconds, if I try to read a screen of data with read full 
screen, or if I just, for example, hit pagedown while in lynx.

This is with a DEC express.

I do much audio processing with my system, and this is going to kill me 
(well, it won't--I'll revert to an old version of speakup, running on 
2.6.18, but then I lose my USB sound card, and have to live with the on 
board one).

Oh, speaking of that, this is only tested through my on board sound, which 
previously gave me no such problems.

I did set "high resolution timer" in the kernel config, if that matters.  
(Along with many other things, but that seems potentially relevant)

An lsmod follows:

Module                  Size  Used by
loop                   17028  0 
nls_iso8859_1           3968  0 
nls_cp437               5632  0 
vfat                   12992  0 
fat                    52188  1 vfat
sg                     34912  0 
sd_mod                 29200  0 
usb_storage            33536  0 
libusual               16288  1 usb_storage
ipv6                  246500  12 
ppdev                   9220  0 
lp                     11716  0 
af_packet              21316  2 
bridge                 53464  0 
llc                     7444  1 bridge
fuse                   47700  1 
usblp                  13632  0 
pl2303                 20612  0 
usbserial              33320  1 pl2303
ide_cd                 38944  0 
cdrom                  36128  1 ide_cd
usbhid                 29632  0 
hid                    35328  1 usbhid
snd_intel8x0           32796  0 
snd_ac97_codec         97184  1 snd_intel8x0
ac97_bus                1920  1 snd_ac97_codec
snd_pcm_oss            41120  0 
snd_mpu401              8040  0 
snd_mpu401_uart         7808  1 snd_mpu401
parport_pc             27684  1 
parport                35336  3 ppdev,lp,parport_pc
snd_pcm                75464  3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_mixer_oss          16256  1 snd_pcm_oss
rtc                    12124  0 
snd_seq_dummy           3588  0 
snd_seq_oss            30848  0 
snd_seq_midi            8288  0 
snd_rawmidi            23520  2 snd_mpu401_uart,snd_seq_midi
snd_seq_midi_event      7168  2 snd_seq_oss,snd_seq_midi
snd_seq                48080  6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer              21636  2 snd_pcm,snd_seq
snd_seq_device          8204  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
pata_acpi               7232  0 
ehci_hcd               31884  0 
snd                    51108  12 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mpu401,snd_mpu401_uart,snd_pcm,snd_mixer_oss,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore               7328  1 snd
ohci_hcd               23044  0 
snd_page_alloc         10248  2 snd_intel8x0,snd_pcm
forcedeth              47372  0 
usbcore               135404  9 usb_storage,libusual,usblp,pl2303,usbserial,usbhid,ehci_hcd,ohci_hcd
i2c_nforce2             6336  0 
i2c_core               23696  1 i2c_nforce2
fan                     4612  0 
nvidia_agp              8348  1 
agpgart                33136  1 nvidia_agp
evdev                  11392  0