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From: "Hofmann, Laurent" <laurent@kally.net>
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Date: Sat, 31 Mar 2007 00:02:30 +0200
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Subject: Memory leak / Kernel Panic using snd_uaudio (USB Sound Card)
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Hello,

 

I have a strange problem with my USB Sound Card. I found some records using
Google, but they are all old and never answered.

 

I'm using the kernel module snd_uaudio to use an USB Sound Card (kldload
uaudio) on Freebsd 6.2-RELEASE. Usb Sound Card is a Hercule Muse Pocket LT.

When playing audio (using PulseAudio), after around 2 hours, I get a kernel
panic followed by a system reboot :

 

"19:33:14 dolphin kernel: usb0: isoc TD alloc failed" 

And/Or

"Mar 30 17:56:58 dolphin kernel: panic: kmem_malloc(12288): kmem_map too
small: 42278912 total allocated".

 

I can reproduce it as needed.

 

How can we try to deal with this problem and find out what is wrong ?

 

Thanks for your help,

 

Best Regards,

 

Laurent H.