Re: resume from S3 regression [Was: 2.6.18-rc3-mm2]

From: Mattia Dongili
Date: Mon Aug 07 2006 - 16:55:23 EST

On Mon, Aug 07, 2006 at 01:02:08PM -0700, Andrew Morton wrote:
> On Mon, 7 Aug 2006 21:38:36 +0200
> Mattia Dongili <malattia@xxxxxxxx> wrote:
> > after resume from ram (tested in single user), I can type commands for a
> > few seconds (time is variable), the processes get stuck in io_schedule.
> > Poorman's screenshots are here:
> >
> >
> That probably measn that the device or device driver has got itself into a
> sick state and IO completions aren't occurring.

BTW: I tried to reverse ide-reprogram-disk-pio-timings-on-resume.patch
with no luck.

> Which storage device (and which device driver) is being used here?

A dmesg is available here (apart from the already resolved BUGs the boot
process is meaningful):
[ 3.168000] ICH3M: chipset revision 1
[ 3.168000] ICH3M: not 100% native mode: will probe irqs later
[ 3.168000] ide0: BM-DMA at 0x1860-0x1867, BIOS settings: hda:DMA, hdb:pio
[ 3.168000] ide1: BM-DMA at 0x1868-0x186f, BIOS settings: hdc:pio, hdd:pio
[ 3.168000] Probing IDE interface ide0...
[ 3.460000] hda: FUJITSU MHV2080AH, ATA DISK drive
[ 4.132000] ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
[ 4.136000] Probing IDE interface ide1...
[ 4.704000] Probing IDE interface ide1...
[ 5.272000] hda: max request size: 128KiB
[ 5.344000] hda: 156301488 sectors (80026 MB) w/8192KiB Cache, CHS=65535/16/63, UDMA(100)
[ 5.348000] hda: cache flushes supported
[ 5.352000] hda: hda1 hda2 hda3 hda4 < hda5 hda6 >

lspci reports:
00:1f.1 IDE interface: Intel Corporation 82801CAM IDE U100 (rev 01) (prog-if 8a [Master SecP PriP])
Subsystem: Sony Corporation VAIO PCG-GR214EP/GR214MP/GR215MP/GR314MP/GR315MP
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 255
Region 0: I/O ports at <ignored>
Region 1: I/O ports at <ignored>
Region 2: I/O ports at <ignored>
Region 3: I/O ports at <ignored>
Region 4: I/O ports at 1860 [size=16]
Region 5: Memory at d0000000 (32-bit, non-prefetchable) [size=1K]

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