Re: Testing IDE-TCQ and Taskfile - doesn't work nicely:)

[Jan-Benedict Glaw <jbglaw@lug-owl.de>]

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On Mon, 2003-06-23 23:18:00 +0200, Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
wrote in message <Pine.SOL.4.30.0306232315480.8078-200000@mion.elka.pw.edu.pl>:
> On Mon, 23 Jun 2003, Jan-Benedict Glaw wrote:
> > I've played a bit with my "mirror" machine
> >
> > - 200MHz Pentium-MMX
> > - 64MB RAM
> > - jbglaw@mirror:~$ cat /proc/ide/hd*/model
> >   WDC AC2850F		# System drive
> >   IC35L040AVER07-0	# \
> >   IC35L120AVV207-0	#   > Storage (with DM/LVM)
> >   Maxtor 4W100H6	# /
> > - jbglaw@mirror:~$ lspci |grep IDE
> >   00:07.1 IDE interface: Intel Corp. 82371AB/EB/MB PIIX4 IDE (rev 01)
> > - Linux v2.5.73
> > - <*> Intel PIIXn chipsets support
> >
> > Basically, if I enable Taskfile I/O, the box refuses to boot (basically,
> > the first drive sounds really broken like "clack   clack   clack" and no
> > data comes off the drive so there's no partition table, no root FS, but
> > a panic:) Is anybody interested in nailing this bug down?
> 
> YES

I'll note down this one after having had a little sleep...

> > Disabling Taskfile lets me boot the box, but hdc doesn't like TCQ and
> > gives errors:
> >
> > ide_tcq_intr_timeout: timeout waiting for service interrupt
> > ide_tcq_intr_timeout: missing isr!
> > hdc: invalidating tag queue (0 commands)
> > hdc: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
> > hdc: drive_cmd: error=0x04 { DriveStatusError }
> > [above messages repeat...]
> 
> TCQ shouldn't be enabled on hdc, you have two drives on second ide
> channel and current TCQ driver design allows only one drive per channel,
> so proper fix is to not enable TCQ :-).

Your patch works for me - TCQ gets no longer stitched on while I've
configured to default ON, queue depth 32:

Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
PIIX4: IDE controller at PCI slot 00:07.1
PIIX4: chipset revision 1
PIIX4: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:pio, hdd:pio
hda: WDC AC2850F, ATA DISK drive
hdb: IC35L040AVER07-0, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hdc: IC35L120AVV207-0, ATA DISK drive
hdd: Maxtor 4W100H6, ATA DISK drive
ide1 at 0x170-0x177,0x376 on irq 15
hda: max request size: 128KiB
hda: task_no_data_intr: status=0x51 { DriveReady SeekComplete Error }
hda: task_no_data_intr: error=0x04 { DriveStatusError }
hda: 1667232 sectors (854 MB) w/64KiB Cache, CHS=1654/16/63, DMA
 hda: hda1 hda2 hda3
hdb: max request size: 128KiB
hdb: host protected area => 1
hdb: 80418240 sectors (41174 MB) w/1916KiB Cache, CHS=79780/16/63, UDMA(33)
 hdb: hdb1 hdb2 hdb3 hdb4
hdc: max request size: 1024KiB
hdc: host protected area => 1
hdc: 241254720 sectors (123522 MB) w/1821KiB Cache, CHS=15017/255/63, UDMA(33)
 hdc: hdc1 < hdc5 hdc6 hdc7 hdc8 hdc9 hdc10 hdc11 hdc12 hdc13 hdc14 hdc15 hdc16 hdc17 >
hdd: max request size: 128KiB
hdd: host protected area => 1
hdd: 195711264 sectors (100204 MB) w/2048KiB Cache, CHS=194158/16/63, UDMA(33)
 hdd: hdd1 < hdd5 hdd6 hdd7 hdd8 hdd9 hdd10 hdd11 hdd12 hdd13 hdd14 >

The box is now running for a couple of minuted hitting it's HDDs with
rsync...

MfG, JBG

-- 
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier Bürger" | im Internet! |   im Irak!
      ret = do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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