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Hi,

 

I've been experiencing a weird problem on Mac OS X v10.6.2 using the 64-bit kernel on a P55 motherboard (Gigabyte GA-P55-UD4). I get a kernel panic once a USB flash drive is attached after the machine has slept -- or equivalently, a kernel panic when the machine wakes up after having slept with a USB flash drive attached.

 

A workaround is using the 32-bit kernel by including the kernel flag arch=i386 in /Extra/com.apple.Boot.plist. There are no problems with the 32-bit kernel.

 

The machine:

  • Gigabyte GA-P55-UD4
  • Intel Core i7-860 + stock cooler
  • Kingston ValueRAM DDR3 1333 MHz DIMM RAM
  • Gigabyte GeForce 9600 GT (GV-N96TSL-1GI)
  • WD Caviar Green 1.5 TB
  • Samsung SATA DVD-RW

is running:

  • Chameleon 2.0-RC4-r684, with Rekursor's patched boot v2.
  • Custom extracted, fixed, and editted DSDT with patches (including sleep) provided by tonymacx86.
  • Vanilla Mac OS 10.6.2, except for:
    • Ethernet through RealtekR1000SL.kext.
    • Sound through 10.6.0 AppleHDA.kext, LegacyHDA.kext for ALC888, and HDEF DSDT patches.

 

Any ideas to what is the cause for this 64-bit kernel panic?

The problem is in your DSDT

I have similiar thread somwhere here in the forum :P

I also used dsdt from tonymac site.

I patched my own DSDT and now everything is working, including sleep.

tony done a great job on the dsdt's but changed some addresses which he shouldn't

you could use my dsdt for reference

ud4p.dsl.zip

The problem is in your DSDT

I have similiar thread somwhere here in the forum :)

I also used dsdt from tonymac site.

I patched my own DSDT and now everything is working, including sleep.

tony done a great job on the dsdt's but changed some addresses which he shouldn't

you could use my dsdt for reference

 

I tried looking at the DSDT you posted in this thread and the copies you posted in the other thread, but looking at a diff of the DSDTs did not help me much -- too many lines changed to yield a clear picture.

 

Could you elaborate on which addresses Tony changed that he should not have changed?

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