Re: Oops on boot with TCQ enabled (VIA KT133A)

On Sat, Oct 19 2002, Jan Dittmer wrote:

Box runs nevertheless. Disabled tcq at runtime.
Do you need more information? Their seems to be no more fs corruption, as 
reported earlier.

jan


Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller at PCI slot 00:07.1
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci00:07.1
    ide0: BM-DMA at 0x9000-0x9007, BIOS settings: hda:DMA, hdb:pio
    ide1: BM-DMA at 0x9008-0x900f, BIOS settings: hdc:DMA, hdd:DMA
hda: IC35L060AVVA07-0, ATA DISK drive
hda: DMA disabled
IDE init is ugly:Call Trace:
 [<c02722cf>] ide_do_drive_cmd+0x8f/0x180
 [<c026f4e8>] ide_diag_taskfile+0x88/0xa0
 [<c026f516>] ide_raw_taskfile+0x16/0x20
 [<c027dc17>] ide_tcq_configure+0x77/0xe0
 [<c027dcc6>] ide_enable_queued+0x46/0xb0
 [<c027de28>] __ide_dma_queued_on+0x48/0x50
 [<c026b675>] ide_init_queue+0x75/0x80
 [<c026b936>] init_irq+0x2b6/0x380
 [<c026be56>] hwif_init+0x106/0x220
 [<c026b54c>] probe_hwif_init+0x1c/0x70
 [<c027bded>] ide_setup_pci_device+0x3d/0x70
 [<c026a583>] via_init_one+0x33/0x40
 [<c010508f>] init+0x2f/0x180
 [<c0105060>] init+0x0/0x180
 [<c01054f5>] kernel_thread_helper+0x5/0x10

hda: bad special flag: 0x03
IDE init is ugly:Call Trace:
 [<c02722cf>] ide_do_drive_cmd+0x8f/0x180
 [<c026f4e8>] ide_diag_taskfile+0x88/0xa0
 [<c026f516>] ide_raw_taskfile+0x16/0x20
 [<c027dc46>] ide_tcq_configure+0xa6/0xe0
 [<c027dcc6>] ide_enable_queued+0x46/0xb0
 [<c027de28>] __ide_dma_queued_on+0x48/0x50
 [<c026b675>] ide_init_queue+0x75/0x80
 [<c026b936>] init_irq+0x2b6/0x380
 [<c026be56>] hwif_init+0x106/0x220
 [<c026b54c>] probe_hwif_init+0x1c/0x70
 [<c027bded>] ide_setup_pci_device+0x3d/0x70
 [<c026a583>] via_init_one+0x33/0x40
 [<c010508f>] init+0x2f/0x180
 [<c0105060>] init+0x0/0x180
 [<c01054f5>] kernel_thread_helper+0x5/0x10

hda: tagged command queueing enabled, command queue depth 32

It's not an oops, and it's not causes by TCQ either. The above is simply
a reminder to fix the ide init sequence, because it's probe sequence
tries to use drive->disk before it has been set up. That is worked
around, but stack is dumped for good measure. So you can feel
comfortable using 2.5.44 regardless.

But I'm curious about TCQ on your system, since another VIA user
reported problems. Does it appear to work for you?

-- 
Jens Axboe