Re: Yet another ATA-related Kernel trap 12 :-(
It seems Terry Lambert wrote: > Vladimir Kushnir wrote: > > Setup: Fujitsu MPG3409AT E disk on external CMD649 controller (the only > > HD). Kernel trap while booting with timeout for ad0 device. Setting > > "hw.ata.ata_dma=0" solves the problem. Sources last cvsupped last night > > (after the last ATA-related commits). Dmesg output attached, but that's > > about all I can provide - no serial console here. > > This is probably related to the inverted sense-test that was > recently fixed. Nope. > FWIW: the CMD640 series of chips is well known to mung DMA, if > an interrupt occurs during a transfer. I can't say for certain > that the CMD649 has this problem, so you might want to look at > the vendor errata for the chips. Personally, I avoid the CMD64x > controllers entirely, so as to avoid getting a bad one, since I > have no idea if there is actually a good one in existance. 8-(. The old CMD640 should be avoided at all costs, the newer CMD646 has problems thats taken care of pr revision. The newer CMD648/649 are OK but are not the best performers... -Søren To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: Yet another ATA-related Kernel trap 12 :-(
Vladimir Kushnir wrote: > Setup: Fujitsu MPG3409AT E disk on external CMD649 controller (the only > HD). Kernel trap while booting with timeout for ad0 device. Setting > "hw.ata.ata_dma=0" solves the problem. Sources last cvsupped last night > (after the last ATA-related commits). Dmesg output attached, but that's > about all I can provide - no serial console here. This is probably related to the inverted sense-test that was recently fixed. FWIW: the CMD640 series of chips is well known to mung DMA, if an interrupt occurs during a transfer. I can't say for certain that the CMD649 has this problem, so you might want to look at the vendor errata for the chips. Personally, I avoid the CMD64x controllers entirely, so as to avoid getting a bad one, since I have no idea if there is actually a good one in existance. 8-(. -- Terry To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: Yet another ATA-related Kernel trap 12 :-(
It seems Vladimir Kushnir wrote: > Setup: Fujitsu MPG3409AT E disk on external CMD649 controller (the only > HD). Kernel trap while booting with timeout for ad0 device. Setting > "hw.ata.ata_dma=0" solves the problem. Sources last cvsupped last night > (after the last ATA-related commits). Dmesg output attached, but that's > about all I can provide - no serial console here. I just committed a fix for that. -Søren To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
