Date: Sat, 20 Apr 2002 18:22:02 +0100 From: Dominic Marks <dominic_marks@btinternet.com> To: freebsd-stable@freebsd.org Cc: sos@freebsd.in-addr.btopenworld.com, asmodai@freebsd.org Subject: ATA changes in recent -STABLE Message-ID: <20020420182202.A56732@host217-41-2-91.in-addr.btopenw>
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Hey,
Is anyone else seeing messages about DMA alignment on their console?
ad0: non aligned DMA transfer attempted
I'm getting a lot of these messages. The source is
sys/dev/ata/ata-dma.c, line 1103:
if (((uintptr_t)data & ch->alignment) || (count & ch->alignment)) {
ata_printf(ch, device, "non aligned DMA transfer attempted\n");
return -1;
}
I'm getting a lot of these, most seem to have appeared when using cvs
to update my source and ports layouts. There doesn't appear to be a
negative impact (im considering reboots/data loss as negative and
performance as secondary).
Any suggestions on what I should/could do about this, if anything.
There doesn't seem to be a mention of it in the ata manual page. Other
information available on request.
Thanks
--
Dominic
uname -a:
FreeBSD gallium 4.5-STABLE FreeBSD 4.5-STABLE #5: Thu Apr 18 13:05:54
BST 2002 dom@gallium:/usr/obj/usr/src/sys/GALLIUM i386
dmesg:
Copyright (c) 1992-2002 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD 4.5-STABLE #5: Thu Apr 18 13:05:54 BST 2002
dom@gallium:/usr/obj/usr/src/sys/GALLIUM
Timecounter "i8254" frequency 1193182 Hz
CPU: Pentium II/Pentium II Xeon/Celeron (447.69-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x652 Stepping = 2
Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR>
real memory = 201326592 (196608K bytes)
avail memory = 193060864 (188536K bytes)
Preloaded elf kernel "kernel" at 0xc02d1000.
Preloaded elf module "if_tun.ko" at 0xc02d109c.
Preloaded elf module "if_xl.ko" at 0xc02d113c.
Preloaded elf module "miibus.ko" at 0xc02d11dc.
Preloaded elf module "snd_es137x.ko" at 0xc02d127c.
Preloaded elf module "snd_pcm.ko" at 0xc02d1320.
Preloaded elf module "usb.ko" at 0xc02d13c0.
Preloaded elf module "ums.ko" at 0xc02d145c.
Pentium Pro MTRR support enabled
Using $PIR table, 11 entries at 0xc00fdf10
apm0: <APM BIOS> on motherboard
apm: found APM BIOS v1.2, connected at v1.2
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82443BX (440 BX) host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
pcib1: <Intel 82443BX (440 BX) PCI-PCI (AGP) bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <Matrox MGA G400 AGP graphics accelerator> at 0.0 irq 11
isab0: <Intel 82371AB PCI to ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 ATA33 controller> port 0x10e0-0x10ef at device 7.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port 0x10c0-0x10df irq 9 at device 7.2 on pci0
usb0: <Intel 82371AB/EB (PIIX4) USB controller> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
ums0: Microsoft Microsoft Wheel Mouse Optical\M-., rev 1.10/1.21, addr 2, iclass 3/1
ums0: 3 buttons and Z dir.
chip1: <Intel 82371AB Power management controller> port 0x7000-0x700f at device 7.3 on pci0
pcm0: <AudioPCI ES1373-A> port 0x1080-0x10bf irq 11 at device 12.0 on pci0
xl0: <3Com 3c905B-TX Fast Etherlink XL> port 0x1000-0x107f mem 0xf4000000-0xf400007f irq 11 at device 14.0 on pci0
xl0: Ethernet address: 00:01:02:45:63:95
miibus0: <MII bus> on xl0
xlphy0: <3Com internal media interface> on miibus0
xlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
orm0: <Option ROMs> at iomem 0xc0000-0xc87ff,0xc8800-0xc8fff,0xe0000-0xe3fff,0xe4000-0xeffff on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
ata1-slave: ATAPI identify retries exceeded
ad0: 28629MB <QUANTUM FIREBALLlct15 30> [58168/16/63] at ata0-master UDMA33
acd0: DVD-ROM <TOSHIBA DVD-ROM SD-M1202> at ata1-master PIO4
Mounting root from ufs:/dev/ad0s1a
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