I have an IBM Thinkpad T30.  I've been able to suspend/resume for
years with apm with no trouble, under 1.5 (I think), 1.6, and now
2.99.15.

I recently got a new 100G disk (FUJITSU MHU2100AT), and at the same
time set up a hibernation partition.  Now, when resuming or coming out
of hibernation, dd reports only about 3.3 MB/s read rate from the
disk.  On a fresh boot, I get 31.7 MB/s (bs=128k).  This feels like a
downgrade to PIO, but I don't see any such mesages in the log.

A friend has the same model disk, in a R51 (or close), and doesn't
have this problem.

It could be that the disk is in some funky mode, but atactl reports
that it is 'active' mode

Any clues about where to look?  Anyone else seeing this?  I wonder
about adding something to undo a downgrade to PIO.


NetBSD 2.99.15 (SINEW) #36: Thu Apr 21 08:20:42 EDT 2005
	root@foo.ir.bbn.com:/usr/obj/sinew/gdt/i386/sys/arch/i386/compile/SINEW
total memory = 510 MB
avail memory = 493 MB
BIOS32 rev. 0 found at 0xfd7e0
PCI BIOS rev. 2.1 found at 0xfd8fe
PCI IRQ Routing Table rev. 1.0 found at 0xfdeb0, size 256 bytes (14 entries)
PCI Interrupt Router at 000:31:0 (Intel 82371FB (PIIX) PCI-ISA Bridge compatible)
mainbus0 (root)
cpu0 at mainbus0: (uniprocessor)
cpu0: Intel Mobile Pentium 4 (686-class), 1998.39 MHz, id 0xf24
cpu0: features 3febf9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR>
cpu0: features 3febf9ff<PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX>
cpu0: features 3febf9ff<FXSR,SSE,SSE2,SS,HTT,TM>
cpu0: "Intel(R) Pentium(R) 4 Mobile CPU 2.00GHz"
cpu0: I-cache 12K uOp cache 8-way, D-cache 8 KB 64B/line 4-way
cpu0: L2 cache 512 KB 64B/line 8-way
cpu0: ITLB 4K/4M: 64 entries
cpu0: DTLB 4K/4M: 64 entries
cpu0: using thermal monitor 1
cpu0: 16 page colors
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0
pchb0: Intel 82845 Host (rev. 0x04)
pchb0: random number generator enabled
agp0 at pchb0: aperture at 0xe0000000, size 0x4000000
ppb0 at pci0 dev 1 function 0: Intel 82845 AGP (rev. 0x04)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
vga1 at pci1 dev 0 function 0: ATI Technologies Radeon Mobility M7 LW (AGP) (rev. 0x00)
wsdisplay0 at vga1 kbdmux 1: console (80x25, vt100 emulation)
wsmux1: connecting to wsdisplay0
uhci0 at pci0 dev 29 function 0: Intel 82801CA USB Controller (rev. 0x02)
uhci0: interrupting at irq 11
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1 at pci0 dev 29 function 1: Intel 82801CA USB Controller (rev. 0x02)
uhci1: interrupting at irq 11
usb1 at uhci1: USB revision 1.0
uhub1 at usb1
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2 at pci0 dev 29 function 2: Intel 82801CA USB Controller (rev. 0x02)
uhci2: interrupting at irq 11
usb2 at uhci2: USB revision 1.0
uhub2 at usb2
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
ppb1 at pci0 dev 30 function 0: Intel 82801BAM Hub-PCI Bridge (rev. 0x42)
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled
cbb0 at pci2 dev 0 function 0: Texas Instruments PCI1520 PCI-CardBus Bridge (rev. 0x01)
cbb1 at pci2 dev 0 function 1: Texas Instruments PCI1520 PCI-CardBus Bridge (rev. 0x01)
wi0 at pci2 dev 2 function 0: Intersil PRISM2.5 Mini-PCI WLAN (rev. 0x01)
wi0: interrupting at irq 11
wi0: 802.11 address X
wi0: using RF:PRISM2.5 MAC:ISL3874A(Mini-PCI)
wi0: Intersil Firmware: Primary (1.1.0), Station (1.4.9)
wi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
fxp0 at pci2 dev 8 function 0: Intel PRO/100 VE Network Controller, rev 66
fxp0: interrupting at irq 11
fxp0: Ethernet address X
inphy0 at fxp0 phy 1: i82562ET 10/100 media interface, rev. 0
inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
cbb0: interrupting at irq 11
cardslot0 at cbb0 slot 0 flags 0
cardbus0 at cardslot0: bus 3 device 0
pcmcia0 at cardslot0
cbb1: interrupting at irq 11
cardslot1 at cbb1 slot 1 flags 0
cardbus1 at cardslot1: bus 6 device 0
pcmcia1 at cardslot1
pcib0 at pci0 dev 31 function 0
pcib0: Intel 82801CAM LPC Interface (rev. 0x02)
piixide0 at pci0 dev 31 function 1
piixide0: Intel 82801CA IDE Controller (ICH3) (rev. 0x02)
piixide0: bus-master DMA support present
piixide0: primary channel wired to compatibility mode
piixide0: primary channel interrupting at irq 14
atabus0 at piixide0 channel 0
piixide0: secondary channel wired to compatibility mode
piixide0: secondary channel interrupting at irq 15
atabus1 at piixide0 channel 1
Intel 82801CA SMBus Controller (SMBus serial bus, revision 0x02) at pci0 dev 31 function 3 not configured
auich0 at pci0 dev 31 function 5: i82801CA (ICH3) AC-97 Audio
auich0: interrupting at irq 11
auich0: ac97: Analog Devices AD1881A codec; headphone, Analog Devices Phat Stereo
auich0: ac97: ext id 1<VRA>
Intel 82801CA Modem (modem communications, revision 0x02) at pci0 dev 31 function 6 not configured
isa0 at pcib0
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
sysbeep0 at pcppi0
isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
npx0 at isa0 port 0xf0-0xff: using exception 16
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
isapnp0: no ISA Plug 'n Play devices found
apm0 at mainbus0: Power Management spec V1.2
auich0: measured ac97 link rate at 47248 Hz, will use 48000 Hz
audio0 at auich0: full duplex, mmap, independent
IPsec: Initialized Security Association Processing.
wd0 at atabus0 drive 0: <FUJITSU MHU2100AT>
wd0: drive supports 16-sector PIO transfers, LBA addressing
wd0: 95396 MB, 193821 cyl, 16 head, 63 sec, 512 bytes/sect x 195371568 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd0(piixide0:0:0): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100) (using DMA)
boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs
wsdisplay0: screen 1 added (80x25, vt100 emulation)
wsdisplay0: screen 2 added (80x25, vt100 emulation)
wsdisplay0: screen 3 added (80x25, vt100 emulation)
wsdisplay0: screen 4 added (80x25, vt100 emulation)