[pulseaudio-discuss] On SHM related Bus errors

Colin Guthrie gmane at colin.guthr.ie
Sun May 9 01:28:19 PDT 2010


There has been some discussion about bus errors and SHM of late.

I've just seen my first bug report on the topic!


Extract (5 is the lowest number in the call stack due to the crash handler)

Application: KNotify (knotify4), signal: Bus error
[KCrash Handler]
#5  0x00007f071225df5e in pa_shm_create_rw () from
#6  0x00007f0712252676 in pa_mempool_new () from
#7  0x00007f07152a8958 in pa_context_new_with_proplist () from
#8  0x00007f0718c33d08 in Phonon::PulseSupport::PulseSupport
(this=0x6de530) at

This happens after a resume from suspend.

What kind of thing can cause this? Non writable SHM area? Full up?

What is the best way to go about debugging this?



Colin Guthrie

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Open Source:
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  PulseAudio Hacker [http://www.pulseaudio.org/]
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