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Date:      Tue, 04 Nov 2014 10:56:03 -0500
From:      "Thomas Laus" <lausts@acm.org>
To:        freebsd-stable@freebsd.org
Subject:   FAILURE - zero length DMA transfer attempted setting up DMA failed
Message-ID:  <5458F713.18781.42E5DC@lausts.acm.org>

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I performed a source upgrade on my computer that is used to edit my vacation 
videos from
FreeBSD 9-STABLE r273924 to FreeBSD 10.1-STABLE r274052 and had continuous 
errors on the
system console after booting into multiuser mode. The errors went away when 
going back
to single user mode.

Nov  3 14:07:30 video kernel: FreeBSD 10.1-PRERELEASE #1 r274052: Mon Nov  3 
13:48:05 EST 2014
Nov  3 14:07:30 video kernel: CPU: Intel(R) Core(TM)2 Duo CPU     E8400  @ 
3.00GHz (2999.72-MHz K8-class CPU)
Nov  3 14:07:30 video kernel: Origin = "GenuineIntel"  Id = 0x10676  Family = 
0x6  Model = 0x17  Stepping = 6
Nov  3 14:07:30 video kernel: 
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,C
MOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Nov  3 14:07:30 video kernel: 
Features2=0x8e3fd<SSE3,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,
SSE4.1>
Nov  3 14:07:30 video kernel: AMD Features=0x20000800<SYSCALL,LM>
Nov  3 14:07:30 video kernel: AMD Features2=0x1<LAHF>
Nov  3 14:07:30 video kernel: atapci0: <Intel ICH7 UDMA100 controller> port 
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xffa0-0xffaf at device 31.1 on pci0
Nov  3 14:07:30 video kernel: ata0: <ATA channel> at channel 0 on atapci0
Nov  3 14:07:30 video kernel: atapci1: <Intel ICH7 SATA300 controller> port 
0xc080-0xc087,0xc000-0xc003,0xbc00-0xbc07,0xb880-0xb883,0xb800-0xb80f irq 19 
at device 31.2 on pci0
Nov  3 14:07:30 video kernel: ata2: <ATA channel> at channel 0 on atapci1
Nov  3 14:07:30 video kernel: ata3: <ATA channel> at channel 1 on atapci1
Nov  3 14:07:30 video kernel: ada0 at ata2 bus 0 scbus1 target 0 lun 0
Nov  3 14:07:30 video kernel: ada0: <PLEXTOR PX-256M5Pro 1.05> ATA-8 SATA 3.x 
device
Nov  3 14:07:30 video kernel: ada0: Serial Number P02312106355
Nov  3 14:07:30 video kernel: ada0: 150.000MB/s transfers (SATA, UDMA5, PIO 
8192bytes)
Nov  3 14:07:30 video kernel: ada0: 244198MB (500118192 512 byte sectors: 16H 
63S/T 16383C)
Nov  3 14:07:30 video kernel: ada0: Previously was known as ad4
Nov  3 14:18:17 video kernel: ata0: FAILURE - zero length DMA transfer 
attempted
Nov  3 14:18:17 video kernel: ata0: setting up DMA failed
Nov  3 14:18:17 video kernel: ata0: FAILURE - zero length DMA transfer 
attempted
Nov  3 14:18:17 video kernel: ata0: setting up DMA failed
Nov  3 14:18:17 video kernel: ata3: FAILURE - zero length DMA transfer 
attempted
Nov  3 14:18:17 video kernel: ata3: setting up DMA failed
Nov  3 14:18:17 video kernel: ata3: FAILURE - zero length DMA transfer 
attempted
Nov  3 14:18:17 video kernel: ata3: setting up DMA failed
Nov  3 14:18:17 video kernel: ata3: FAILURE - zero length DMA transfer 
attempted
Nov  3 14:18:17 video kernel: ata3: setting up DMA failed
Nov  3 14:18:17 video kernel: ata3: FAILURE - zero length DMA transfer 
attempted
Nov  3 14:18:49 video kernel: ata3: FAILURE - zero length DMA transfer 
attempted
Nov  3 14:18:49 video kernel: ata3: setting up DMA failed
Nov  3 14:18:49 video kernel: ata3: FAILURE - zero length DMA transfer 
attempted
Nov  3 14:18:49 video kernel: ata3: setting up DMA failed

I went back to FreeBSD 9-STABLE and had no further errors.  This computer 
uses a
Plextor SSD and works well on the FreeBSD 9 branch.  This SSD has TRIM 
enabled and
was setup like the Warren Block SSD Guide.  It has partitions for root, var, 
usr
and has a swapfile and tmpfs.  Trim was enabled on the 3 disk partitions 
during
the newfs operation.

Tom


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