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From: Tatsumi Hosokawa <hosokawa@FreeBSD.org>
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Subject: SATA disks on 5.2-CURRENT
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Hi.

I installed today's -current on my pentium4+i865 box and tested sata
disks on ICH5.

atapci2@pci0:31:2:      class=0x01018f card=0x24d11458 chip=0x24d18086 rev=0x02
hdr=0x00
    vendor   = 'Intel Corporation'
    device   = '82801EB (ICH5) SATA Controller'
    class    = mass storage
    subclass = ATA

Disks sometimes work, and sometimes don't work, and sometimes the
system hangs in boot process (these disks work fine on 4.9-RELEASE).

Error messages:

 Case 1:
  Dec  7 21:52:02 nekodaisuki kernel: ad4: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=40<UNCORRECTABLE>
  Dec  7 21:52:02 nekodaisuki kernel: ad6: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=10<NID_NOT_FOUND>

 Case 2:
  Dec  8 00:27:48 nekodaisuki kernel: ad4: WARNING - READ_DMA recovered from missing interrupt
  Dec  8 00:27:48 nekodaisuki kernel: ad4: FAILURE - READ_DMA status=ff<BUSY,READY,DMA_READY,DSC,DRQ,CORRECTABLE,INDEX,ERROR> error=0
  Dec  8 00:27:48 nekodaisuki kernel: ad4: timeout sending command=c8
  Dec  8 00:27:48 nekodaisuki kernel: ad4: error issuing DMA command
  Dec  8 00:27:48 nekodaisuki kernel: ad4: WARNING - READ_DMA recovered from missing interrupt
  Dec  8 00:27:48 nekodaisuki kernel: ad4: FAILURE - READ_DMA status=ff<BUSY,READY,DMA_READY,DSC,DRQ,CORRECTABLE,INDEX,ERROR> error=0


--
Tatsumi Hosokawa
<hosokawa@FreeBSD.org>
http://FromTo.Cc/hosokawa/