Openmoko Bug #2330: recording from usb headset and playing back audio at the same time prints "frame 0 active: -18"
Openmoko Public Trac
bugs at docs.openmoko.org
Sun Jan 24 20:44:45 CET 2010
#2330: recording from usb headset and playing back audio at the same time prints
"frame 0 active: -18"
-----------------------------+----------------------------------------------
Reporter: lindi | Owner: openmoko-kernel
Type: defect | Status: new
Priority: normal | Milestone:
Component: System Software | Version: unspecified
Severity: normal | Keywords:
Haspatch: 0 | Blockedby:
Estimated: | Patchreview:
Blocking: | Reproducible: always
-----------------------------+----------------------------------------------
Steps to reproduce:
0) connect usb headset to openmoko
1) alsactl restore -f stereoout.state
2) cat /dev/zero | aplay -D hw:0,0 -t raw -r 8000 -f S16_LE -c 2
3) arecord -D hw:1 -t raw -r 48000 -f S16_LE -c 1 > /dev/null
4) Try to run both at the same time
Expected results:
2) audio is played with speaker
3) audio is recorded from usb headset
4) audio is played with speaker and recorded from usb headset
Actual results:
2) seems to work:
Playing raw data 'stdin' : Signed 16 bit Little Endian, Rate 8000 Hz,
Stereo
and vmstat shows almost no load:
{{{
procs -----------memory---------- ---swap-- -----io---- -system--
----cpu----
r b swpd free buff cache si so bi bo in cs us sy id
wa
0 0 108 12952 10016 57468 0 0 0 0 326 244 0 1 99
0
0 0 108 13584 10016 57468 0 0 0 0 323 258 0 1 99
0
0 0 108 13200 10016 57468 0 0 0 0 344 283 0 2 98
0
0 0 108 13172 10024 57468 0 0 0 2 313 253 2 2 95
1
0 0 108 13172 10032 57468 0 0 0 2 311 234 0 0 98
2
0 0 108 13172 10032 57468 0 0 0 0 310 229 0 1 99
0
0 0 108 13172 10032 57468 0 0 0 0 319 237 0 1 99
0
0 0 108 13172 10032 57468 0 0 0 0 348 242 0 1 99
0
0 0 108 13172 10032 57468 0 0 0 0 311 238 0 1 99
0
}}}
3) seems to work
Recording raw data 'stdin' : Signed 16 bit Little Endian, Rate
48000 Hz, Mono
and vmstat again shows almost no load:
{{{
procs -----------memory---------- ---swap-- -----io---- -system--
----cpu----
r b swpd free buff cache si so bi bo in cs us sy id
wa
0 1 108 14148 10084 57472 0 0 0 2 2306 238 0 0 97
3
0 0 108 14120 10084 57472 0 0 0 0 2307 249 2 2 95
2
0 0 108 14120 10092 57472 0 0 0 2 2305 246 0 0 98
1
0 0 108 14120 10092 57472 0 0 0 0 2311 242 0 0
100 0
0 0 108 14120 10092 57472 0 0 0 0 2308 244 0 0 99
0
0 0 108 14120 10092 57472 0 0 0 0 2304 240 0 0
100 0
}}}
4) causes aplay to print
underrun!!! (at least 5.185 ms long)
underrun!!! (at least 0.015 ms long)
underrun!!! (at least 3.817 ms long)
underrun!!! (at least 1.094 ms long)
underrun!!! (at least 9.648 ms long)
underrun!!! (at least 0.540 ms long)
underrun!!! (at least 0.700 ms long)
underrun!!! (at least 5.194 ms long)
underrun!!! (at least 0.013 ms long)
underrun!!! (at least 0.014 ms long)
underrun!!! (at least 0.715 ms long)
underrun!!! (at least 2.273 ms long)
underrun!!! (at least 7.920 ms long)
underrun!!! (at least 3.670 ms long)
underrun!!! (at least 0.069 ms long)
and kernel to print
{{{
[16892.715000] frame 0 active: -18
[16892.725000] frame 0 active: -18
[16892.725000] frame 0 active: -18
[16892.725000] frame 0 active: -18
[16892.725000] frame 0 active: -18
[16892.725000] frame 0 active: -114
[16892.725000] frame 0 active: -18
[16892.725000] frame 0 active: -18
[16892.730000] frame 0 active: -18
[16892.730000] frame 0 active: -114
[16892.730000] frame 0 active: -18
[16892.730000] frame 0 active: -18
[16892.730000] frame 0 active: -18
[16892.730000] frame 0 active: -18
[16892.730000] frame 0 active: -18
[16892.735000] frame 0 active: -18
[16892.735000] frame 0 active: -18
[16892.735000] frame 0 active: -18
[16892.735000] frame 0 active: -18
[16892.735000] frame 0 active: -18
[16892.735000] frame 0 active: -114
[16892.735000] frame 0 active: -18
[16892.740000] frame 0 active: -18
[16892.740000] frame 0 active: -18
[16892.740000] frame 0 active: -114
[16892.740000] frame 0 active: -18
[16892.740000] frame 0 active: -18
[16892.740000] frame 0 active: -18
[16892.740000] frame 0 active: -18
[16892.745000] frame 0 active: -18
[16892.745000] frame 0 active: -18
[16892.745000] frame 0 active: -18
[16892.745000] frame 0 active: -18
[16892.745000] frame 0 active: -18
[16892.745000] frame 0 active: -18
[16892.745000] frame 0 active: -18
}}}
at a very rapid rate.
More info:
1) kernel is andy-tracking a3587e4ed77974ad with DEBUG and PREEMPT
disabled.
--
Ticket URL: <https://docs.openmoko.org/trac/ticket/2330>
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