Alexander Motin wrote: > Yoshifumi SASAKI wrote: >> Sound... succeed to load snd_hda.ko >> >> hdac0: <Intel SCH High Definition Audio Controller> mem >> 0x942c0000-0x942c3fff irq 11 at device 27.0 on pci0 >> hdac0: HDA Driver Revision: 20090215_0128 >> hdac0: [ITHREAD] >> hdac0: HDA Codec #0: Realtek ALC262 >> pcm0: <HDA Realtek ALC262 PCM #0 Analog> at cad 0 nid 1 on hdac0 >> >> I receive many messages.And I try to play MP3 data,But not sound. >> >> interrupt storm detected on "irq5:"; throttling interrupt source >> interrupt storm detected on "irq5:"; throttling interrupt source >> interrupt storm detected on "irq5:"; throttling interrupt source >> interrupt storm detected on "irq5:"; throttling interrupt source > > snd_hda supports several interrupt modes: MSI, usual interrupts and > polling (interruptless operation). The version you have tested uses MSI > by default. You can switch it to use usual interrupts by setting > hint.hdac.0.msi=0 in loader.conf, or to use polling by > dev.hdac.0.polling=1 sysctl. Also you can try latest CURRENT, as there > were some MSI related changes recently. According to Intel's official SCH chip errata: "High Definition Audio Does Not Send Interrupts to the CPU When Using the MSI". So may be disabling it is the right way out. -- Alexander MotinReceived on Tue Mar 10 2009 - 17:29:46 UTC
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