On Fri, 2010-02-05 at 09:13 +0100, Takashi Iwai wrote: > At Thu, 04 Feb 2010 22:20:17 +0200, > Maxim Levitsky wrote: > > > > Hi, > > > > Although I thought that polling mode is harmless, it sometimes isn't. > > I found out that after few dozens of hibernate cycles, the timeout would > > happen again kicking out first MSI, and then whole RRIB (single_cmd). > > > > However, I also found out that if I resend the command that caused the > > timeout, it would complete normally. > > Even futher, it is possible to poll for this command, and send next > > normally. It just works. > > So interrupts do work, but sometimes (very rarely) are missed. It might > > be even a hardware bug. > > > > The patch I send allows to delay switch to polling till we get 3 such > > timeouts in a row. > > > > I tested this approach for about 130 hibernate cycles. > > Thanks! Applied both patches now. > > I changed snd_printd() to snd_printdd() since the former is enabled on > vendor kernels often as default, and this can worry innocent users (I > know from my experiences :) Thanks a lot! Best regards, Maxim Levitsky _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
