Karl Hiramoto wrote: > Sergei Shtylyov wrote: > >> Hello. >> >> Karl Hiramoto wrote: >> >> >>>> Krzysztof Halasa wrote: >>>> >>>>> Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx> writes: >>>>> >>>>>> Normally you get a backtrace when a "nobody cared" message is >>>>>> issued - >>>>>> this should tell you which driver is probably the cause. >>>>>> >>>>> Right - or that the other device is the cause (stuck IRQ line). So, >>>>> Karl, please just post the backtrace. >>>>> >>>> Krzysztof, you mentioned clearing the IRQ in the platform code, is >>>> there an example of this somewhere? >>>> >>>> There is a Compact flash on hda connected the the HPT371N, looking >>>> at the IDE code it looks like the drive my not be ready, or the >>>> drive may raise the IRQ.. >>>> >>>> As soon as request_irq is called, the IRQ happens. >>>> >>>> CCing linux-IDE now, as it may be an issue with this driver. >>>> >>>> Backtrace below, sorry about some of the lines being wrapped. >>>> >>> I think i see the problem: >>> >>> In the platform code, i should save the frequency of 33 Mhz in the >>> correct register. >>> >> You mean the PCI frequency? >> >> >>>> hpt366: HPT371N chipset detected >>>> hpt366 0000:00:01.0: IDE controller (0x1103:0x0007 rev 0x02) >>>> PCI: enabling device 0000:00:01.0 (0140 -> 0141) >>>> hpt366 0000:00:01.0: IDE port disabled >>>> hpt366 0000:00:01.0: no clock data saved by BIOS >>>> hpt366 0000:00:01.0: DPLL base: 77 MHz, f_CNT: 120, assuming 50 MHz PCI >>>> >> Hum, interesting... is your PCI indeed running at a frequency close to >> 50 MHz? >> > > No, it's being miscalculated by the hpt366 driver. I think it should be > 33 Mhz. At least i have not yet seen this IRQ "nobody cared" message > when i set it to 33Mhz in the hpt366 driver. > Still doing more tests to see if it comes up again, but it's hard to > reproduce. > > > Sorry, think i misspoke, after reading the IXP4xx dev manual it says 66Mhz PCI version 2.2. -- -- Karl Hiramoto http://karl.hiramoto.org/ -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
