Messages in this thread | | | Date | Thu, 12 Aug 1999 02:13:23 +0200 | From | Roger Larsson <> | Subject | Re: hdd & sound |
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Hi all,
All of you that are having this problem. Could you reply to me with: a) type of ISA cards (as specific as possible, especially SCSI and sound) b) verify that you do not run SCSI/EIDE in non bus master mode. c) attach a output from vmstat 2 > vmstat.out (play sound, start this command, wait 5 secs, start disk activity, wait 5 secs, stop vmstat with ^C
This was checked on Wakkos machine, and it indicated that no bus mastering / DMA was used. Note: my SB16SCSI II does not have DMA enabled by default... and ISA cards can not do bus mastering on their own.) [I will make a summary]
PS.
I do think that this is related (until proven otherwise)
Check out http://www.gardena.net/benno/linux/audio/
But make sure that you are using Bus Master EIDE / dma transfers since it does not handle that yet !
/RogerL
Mike wrote: > > On Sat, 7 Aug 1999, Wakko Warner wrote: > > > I'm noticing this one one of my machines. When writing to a hard drive, the > > sound drags. The machine I'm on has piix4 ide and an isa scsi card. I'm > > playing sounds from the drive on the scsi card (aha1510 I think is the scsi > > card). I tried writing to both an ide and scsi drive, both drag the sound. > > Sound card is an SB16 pnp /w ide port (not disablable unfortunately). I had > > a similar problem on an isa ide card playing sounds off of the hard drive > > (like 44k 16bit 2ch sound off the drive, sound card was an ess card). My > > home box that this is happneing on is 2.2.7. The one with the isa ide is no > > longer active, but it was running 2.0.36. > > > I see much the same thing under (extremely) heavy disk load, both on > onboard piix4 ide, and on an onboard aic7??? scsi. > > Things it isn't: > hardware - too many people are seeing the same thing for that > driver specific - it happens on both ide and scsi, and with both sb and > ess cards > anything blindingly obvious > > Currently I suspect something evil either in sound_core.c or sound_timer.c > or (more likely) something scheduler related, but this is wild guessing. Any > ideas? > > -- > Mike <rickettm@ox.compsoc.net> > > Q: What's yellow, and equivalent to the Axiom of Choice? > A: Zorn's Lemon. > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.rutgers.edu > Please read the FAQ at http://www.tux.org/lkml/
--
The Internet interprets Windows as damage, and routes around it.
Roger Larsson Skellefteå Sweden
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
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