Re: Promise, DMA and RAID5 problems running 2.4.1

2001-02-08 Thread Vojtech Pavlik
On Wed, Feb 07, 2001 at 12:53:36PM -0800, Andre Hedrick wrote: > On Wed, 7 Feb 2001, Alan Cox wrote: > > > > Iff CONFIG_BLK_DEV_IDECS is set then yes, doing schedule is better. > > > But I do not see any benefit in doing > > > > > > unsigned long timeout = jiffies + ((HZ + 19)/20) + 1; > > > whi

Re: Promise, DMA and RAID5 problems running 2.4.1

2001-02-07 Thread A.Sajjad Zaidi
Petr Vandrovec wrote: > It is known bug which I reported to Andre already. Open > drivers/ide/ide.c in favorite text editor, and replace strange > body of ide_delay_50ms() with simple mdelay(50). Promise driver > invokes ide_delay_50ms with interrupts disabled, so it freezes > here forever. If yo

Re: Promise, DMA and RAID5 problems running 2.4.1

2001-02-07 Thread Stephen Wille Padnos
"A.Sajjad Zaidi" wrote: > > do you understand that you can't really have raid on ide involving > > two drives on the same channel? > > Is that just because of performance or are there other problems? Its working > fine as it is, but Im considering setting up all drives as masters (2x > ATA-100, 2

Re: Promise, DMA and RAID5 problems running 2.4.1

2001-02-07 Thread A.Sajjad Zaidi
Mark Hahn wrote: > > drives (all IBM-DTLA307045 s) that I realised that the cylinder/head > > translation is different and I cant use the whole drive unless its > > partitioned while attached to the other IDE ports. > > no, it's just that the bios doesn't perform the LBA geometry lie > outside the

Re: Promise, DMA and RAID5 problems running 2.4.1

2001-02-07 Thread Andre Hedrick
On Wed, 7 Feb 2001, Alan Cox wrote: > > Iff CONFIG_BLK_DEV_IDECS is set then yes, doing schedule is better. > > But I do not see any benefit in doing > > > > unsigned long timeout = jiffies + ((HZ + 19)/20) + 1; > > while (0 < (signed long)(timeout - jiffies)); > > On that bit we agree. What d

Re: Promise, DMA and RAID5 problems running 2.4.1

2001-02-07 Thread Alan Cox
> Iff CONFIG_BLK_DEV_IDECS is set then yes, doing schedule is better. > But I do not see any benefit in doing > > unsigned long timeout = jiffies + ((HZ + 19)/20) + 1; > while (0 < (signed long)(timeout - jiffies)); On that bit we agree. - To unsubscribe from this list: send the line "unsubscrib

Re: Promise, DMA and RAID5 problems running 2.4.1

2001-02-07 Thread Petr Vandrovec
On 7 Feb 01 at 19:33, Alan Cox wrote: > > It is known bug which I reported to Andre already. Open > > drivers/ide/ide.c in favorite text editor, and replace strange > > body of ide_delay_50ms() with simple mdelay(50). Promise driver > > invokes ide_delay_50ms with interrupts disabled, so it freez

Re: Promise, DMA and RAID5 problems running 2.4.1

2001-02-07 Thread Alan Cox
> It is known bug which I reported to Andre already. Open > drivers/ide/ide.c in favorite text editor, and replace strange > body of ide_delay_50ms() with simple mdelay(50). Promise driver > invokes ide_delay_50ms with interrupts disabled, so it freezes > here forever. If you have NMI watchdog, yo

Re: Promise, DMA and RAID5 problems running 2.4.1

2001-02-07 Thread Petr Vandrovec
On 7 Feb 01 at 19:12, A.Sajjad Zaidi wrote: > I just built a system that uses a K7V motherboard with the KT133 > chipset. It has an onboard Promise PDC20265 ATA-100 controller. Im > running RH6.2. > > hda: dma_intr: bad DMA status > hda: dma_intr: status=0x50 { DriveReady SeekComplete } > hda: