Re: HPET regression in 2.6.26 versus 2.6.25 -- found another user with the same regression

David Witbrodt
2008-08-23T16:33:20Z

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> > could you try the debug patch below ontop of latest tip/master:
>
> please use the replacement debug patch below. (the previous one was
> buggy, it would likely lock up because it iterated incorrectly.)

Oops! My fault. I was composing my reply a bit at a time, adding
stuff with each reboot, and couldn't see my inbox had this followup
from you before I hit Send.

> [ and i'd also like to stress that this isnt a solution, this is a debug
> hack that can lead to a solution. ]

ACK.

Personally, if I had champagne here, I'd have popped the cork already.
This is the first 2.6.2[67] kernel I've had that can boot without
"hpet=ignore" or reverting the 2 commits from February.

Here are the messages about ignoring conflicts. The full 'dmesg' output
is attached -- gzip'ed because it was over 100K (I used kernel parameters
"debug initcall_debug", and a bunch of unexpected stack traces also
appeared).

$ dmesg | grep ^ignoring
ignoring resource conflict between System RAM/{0000000000100000..0000000077fdffff} and Kernel code/{0000000000200000..000000000058b008}
ignoring resource conflict between 0000:00:14.0/{00000000fed00000..00000000fed003ff} and reserved/{00000000fec00000..00000000ffffffff}
ignoring resource conflict between pnp 00:0c/{00000000e0000000..00000000efffffff} and reserved/{00000000e0000000..00000000efffffff}
ignoring resource conflict between pnp 00:0d/{00000000000f0000..00000000000fffff} and reserved/{00000000000f0000..00000000000fffff}
ignoring resource conflict between pnp 00:0d/{0000000077fe0000..0000000077ffffff} and ACPI Non-volatile Storage/{0000000077fe0000..0000000077fe2fff}
ignoring resource conflict between pnp 00:0d/{00000000ffff0000..00000000ffffffff} and reserved/{00000000fec00000..00000000ffffffff}
ignoring resource conflict between pnp 00:0d/{0000000000000000..000000000009ffff} and System RAM/{0000000000000000..000000000009f3ff}
ignoring resource conflict between pnp 00:0d/{0000000000100000..0000000077fdffff} and System RAM/{0000000000100000..0000000077fdffff}
ignoring resource conflict between ehci_hcd/{00000000fe029000..00000000fe0290ff} and 0000:00:13.5/{00000000fe029000..00000000fe0290ff}
ignoring resource conflict between ohci_hcd/{00000000fe02e000..00000000fe02efff} and 0000:00:13.0/{00000000fe02e000..00000000fe02efff}
ignoring resource conflict between ohci_hcd/{00000000fe02d000..00000000fe02dfff} and 0000:00:13.1/{00000000fe02d000..00000000fe02dfff}
ignoring resource conflict between ohci_hcd/{00000000fe02c000..00000000fe02cfff} and 0000:00:13.2/{00000000fe02c000..00000000fe02cfff}
ignoring resource conflict between ohci_hcd/{00000000fe02b000..00000000fe02bfff} and 0000:00:13.3/{00000000fe02b000..00000000fe02bfff}
ignoring resource conflict between ohci_hcd/{00000000fe02a000..00000000fe02afff} and 0000:00:13.4/{00000000fe02a000..00000000fe02afff}
ignoring resource conflict between uvesafb/{00000000d8000000..00000000d8ffffff} and PCI Bus 0000:01/{00000000d8000000..00000000dfffffff}
ignoring resource conflict between uvesafb/{00000000000003c0..00000000000003df} and vga+/{00000000000003c0..00000000000003df}
ignoring resource conflict between ACPI PM1a_EVT_BLK/{0000000000004000..0000000000004003} and pnp 00:01/{0000000000004000..00000000000040fe}
ignoring resource conflict between ACPI PM1a_CNT_BLK/{0000000000004004..0000000000004005} and pnp 00:01/{0000000000004000..00000000000040fe}
ignoring resource conflict between ACPI PM_TMR/{0000000000004008..000000000000400b} and pnp 00:01/{0000000000004000..00000000000040fe}
ignoring resource conflict between ACPI PM2_CNT_BLK/{0000000000004050..0000000000004050} and pnp 00:01/{0000000000004000..00000000000040fe}
ignoring resource conflict between ACPI CPU throttle/{0000000000004010..0000000000004015} and ACPI CPU throttle/{0000000000004010..0000000000004015}
ignoring resource conflict between r8169/{000000000000de00..000000000000deff} and PCI Bus 0000:02/{000000000000d000..000000000000dfff}
ignoring resource conflict between r8169/{00000000fdcff000..00000000fdcff0ff} and PCI Bus 0000:02/{00000000fdc00000..00000000fdcfffff}
ignoring resource conflict between atiixp/{00000000000001f0..00000000000001f7} and 0000:00:14.1/{00000000000001f0..00000000000001f7}
ignoring resource conflict between atiixp/{00000000000003f6..00000000000003f6} and 0000:00:14.1/{00000000000003f6..00000000000003f6}
ignoring resource conflict between atiixp/{000000000000f900..000000000000f90f} and 0000:00:14.1/{000000000000f900..000000000000f90f}
ignoring resource conflict between ide_generic/{00000000000001f0..00000000000001f7} and atiixp/{00000000000001f0..00000000000001f7}
ignoring resource conflict between ide_generic/{00000000000003f6..00000000000003f6} and atiixp/{00000000000003f6..00000000000003f6}
ignoring resource conflict between ide_generic/{0000000000000170..0000000000000177} and 0000:00:14.1/{0000000000000170..0000000000000177}
ignoring resource conflict between ide_generic/{0000000000000376..0000000000000376} and 0000:00:14.1/{0000000000000376..0000000000000376}
ignoring resource conflict between ahci/{000000000000ff00..000000000000ff07} and 0000:00:12.0/{000000000000ff00..000000000000ff07}
ignoring resource conflict between ahci/{000000000000fe00..000000000000fe03} and 0000:00:12.0/{000000000000fe00..000000000000fe03}
ignoring resource conflict between ahci/{000000000000fd00..000000000000fd07} and 0000:00:12.0/{000000000000fd00..000000000000fd07}
ignoring resource conflict between ahci/{000000000000fc00..000000000000fc03} and 0000:00:12.0/{000000000000fc00..000000000000fc03}
ignoring resource conflict between ahci/{000000000000fb00..000000000000fb0f} and 0000:00:12.0/{000000000000fb00..000000000000fb0f}
ignoring resource conflict between ahci/{00000000fe02f000..00000000fe02f3ff} and 0000:00:12.0/{00000000fe02f000..00000000fe02f3ff}
ignoring resource conflict between piix4_smbus/{000000000000fa00..000000000000fa07} and 0000:00:14.0/{000000000000fa00..000000000000fa0f}
ignoring resource conflict between ICH HD audio/{00000000fe020000..00000000fe023fff} and 0000:00:14.2/{00000000fe020000..00000000fe023fff}
ignoring resource conflict between ICH HD audio/{00000000fdefc000..00000000fdefffff} and PCI Bus 0000:01/{00000000fdd00000..00000000fdefffff}
ignoring resource conflict between HPET 0/{00000000fed00000..00000000fed003ff} and 0000:00:14.0/{00000000fed00000..00000000fed003ff}
ignoring resource conflict between Local APIC/{00000000fee00000..00000000fee00fff} and pnp 00:0d/{00000000fee00000..00000000fee00fff}
ignoring resource conflict between IOAPIC 0/{00000000fec00000..00000000fec00fff} and pnp 00:0d/{00000000fec00000..00000000fec00fff}
ignoring resource conflict between PCI MMCONFIG 0/{00000000e0000000..00000000efffffff} and pnp 00:0c/{00000000e0000000..00000000efffffff}
ignoring resource conflict between serial-rsa/{00000000000003f0..00000000000003f7} and ide_generic/{00000000000003f6..00000000000003f6}
ignoring resource conflict between serial-rsa/{00000000000003f0..00000000000003f7} and ide_generic/{00000000000003f6..00000000000003f6}

Thanks Ingo,
Dave W.

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