[DragonFlyBSD - Bug #2308] System freeze when unloading snd_hda

Joachim de Groot via Redmine bugtracker-admin at leaf.dragonflybsd.org
Fri Feb 17 23:36:58 PST 2012

Issue #2308 has been reported by Joachim de Groot.

Bug #2308: System freeze when unloading snd_hda

Author: Joachim de Groot
Status: New
Priority: Normal
Target version: 

When unloading snd_hda, the system (v3.1.0.197.gcc1635-DEVELOPMENT) freezes completely.
There is no panic; the screen just gets garbled and the system no longer responds to any interaction, may it be local or via network. 

This shows up when loading the module:

pcm0: <NVidia MCP51 High Definition Audio Controller> mem 0xf2300000-0xf2303fff irq 21 at device 16.1 on pci0
pcm0: <HDA Codec: Realtek ALC260>
pcm0: <HDA Driver Revision: 20071129_0050>

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