Re: IRQ (routing ?) problem [was Re: epic100 in current -ac kernels]

[ARND BERGMANN]

  This message is in MIME format.  The first part should be readable text,
  while the remaining parts are likely unreadable without MIME-aware tools.
  Send mail to [e-mail] for more info.

---559023410-1804928587-982234724=:19331
Content-Type: TEXT/PLAIN; charset=US-ASCII

Sorry for the delay, I could not get physical access to the machine
for the last days.

I was able to do some more testing today and found this:
- The problem is not the IRQ /sharing/, after getting rid of all the
  other PCI cards, the problem was still there.
- The only thing that seems to have any effect on the symptoms is the
  presence of the USB driver, either usb-uhci or uhci. I am not using
  USB at all. As described before, the system behaves is either of those
  ways:
   * epic100 driver without DMA mapping (e.g. 2.4.0-ac9): normal operation
   * driver with DMA mapping+USB driver loaded: lots of interrupts -> slow
   * driver with DMA mapping, USB driver not loaded: hang after ~2 seconds
- I sometimes get 'spurious interrupt: IRQ7', even though no device is 
  connected there. Probably not important.

On Sat, 10 Feb 2001, Francois Romieu wrote:

> 
> The following informations may help:
> - motherboard type
Asus A7V, onboard USB hub and Promise ATA/100 chip

> - bios revision
Can't see right now, system was bought in October 2000
I think it was 1.004, but I am not sure.

> - lspci -x 
see attachment, this was when I ripped out sound, tv and scsi

> - 2.4.2pre3 + whatever recent ac epic100 = ?
Still no improvement until latest -ac (2.4.1-ac13)

Arnd <><

---559023410-1804928587-982234724=:19331
Content-Type: TEXT/PLAIN; charset=US-ASCII; name=lspci-vx
Content-Transfer-Encoding: BASE64
Content-ID: <Pine.GSO.4.21.0102151158440.19331@gamma10>
Content-Description: 
Content-Disposition: attachment; filename=lspci-vx
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---559023410-1804928587-982234724=:19331--