Some more pattern data (but from beta 6)
Sorry in case this is already improved in RC1 over beta6 (but the report of the original poster suggests that not). I'm using beta6 at this time rather than RC1 because of the keyboard mapping and global key handling issues.
The pattern (for me) seems to be that changing Location locks up Parallels (spinning beach ball of death), so I have to force quit it. I can then start Parallels again (without rebooting the Mac), and it works fine, including network.
But the next time the Mac is put to sleep, it will completely crash with a kernel panic while going to sleep. I've seen this now three times in exactly the same sequence.
The kernel panic data (this time in full) seems to be identical as well:
panic(cpu 0 caller 0x0019C9EF): Unresolved kernel trap (CPU 0, Type 13=general protection), registers:
CR0: 0x8001003b, CR2: 0x000e0000, CR3: 0x00da1000, CR4: 0x000026e0
EAX: 0x000006e0, EBX: 0x00000000, ECX: 0x00000001, EDX: 0x03da6a04
ESP: 0x24e13c0c, EBP: 0x24e13c48, ESI: 0x00000000, EDI: 0x00000202
EFL: 0x00010006, EIP: 0x0069b1b3, CS: 0x00000014, DS: 0x24e1001c
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x24e13ad8 : 0x128b5e (0x3bbf84 0x24e13afc 0x131bbc 0x0)
0x24e13b18 : 0x19c9ef (0x3c13b4 0x0 0xd 0x3c1158)
0x24e13bc8 : 0x197b8d (0x24e13bdc 0x24e13c48 0x69b1b3 0x3b10048)
0x24e13bd4 : 0x69b1b3 (0x3b10048 0x390001c 0x1c 0x24e1001c)
0x24e13c48 : 0x698915 (0x0 0x24e13d24 0x6d142b 0x38c6c40)
0x24e13cf8 : 0x69b0c9 (0x69b109 0x0 0x3ae14e 0x38c9c00)
0x24e13d18 : 0x69b1fe (0x3ba4be0 0x24e13d54 0x6cfd33 0x38c6b80)
0x24e13d38 : 0x699952 (0x3b48070 0x24e13d64 0x3834100 0x37ecf40)
0x24e13d68 : 0x698567 (0x0 0xc0045408 0x24e13ed8 0x3738940)
0x24e13d88 : 0x1e3d72 (0xb000000 0xc0045408 0x24e13ed8 0x81)
0x24e13dc8 : 0x1dac2e (0x24e13df0 0x297 0x24e13e28 0x1c4423)
0x24e13e28 : 0x1d29c3 (0x49fff78 0xc0045408 0x24e13ed8 0x81)
0x24e13e78 : 0x3255fb (0x456bcb0 0xc0045408 0x24e13ed8 0x390b1f4)
0x24e13ea8 : 0x3439a5 (0x456bcb0 0xc0045408 0x24e13ed8 0x390b1f4)
0x24e13f78 : 0x36da40 (0x390b1f4 0x433e40c 0x433e450 0x0)
0x24e13fd8 : 0x197f03 (0x43604f8 0x43604f8 0x24e13bdc 0x24e13b4c) Backtrace continues...
Kernel loadable modules in backtrace (with dependencies):
com.parallels.kext.hypervisor(2.1)@0x697000
Kernel version:
Darwin Kernel Version 8.6.2: Thu Apr 13 18:48:29 PDT 2006; root:xnu-792.9.59.obj~1/RELEASE_I386
Model: MacBookPro1,2, BootROM MBP12.0061.B00, 2 processors, Intel Core Duo, 2.16 GHz, 2 GB
Graphics: ATI Radeon X1600, ATY,RadeonX1600, PCIe, 256 MB
Memory Module: DIMM0/BANK 0, 1 GB, DDR2 SDRAM, 667 MHz
Memory Module: DIMM1/BANK 1, 1 GB, DDR2 SDRAM, 667 MHz
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x86), 0.1.20
Bluetooth: Version 1.7.4f16, 2 service, 0 devices, 1 incoming serial ports
Network Service: Built-in Ethernet, Ethernet, en0
Network Service: AirPort, AirPort, en1
Network Service: Parallels Host-Guest Adapter, Ethernet, en2
Serial ATA Device: ST9120821AS, 111.79 GB
Parallel ATA Device: MATSHITADVD-R UJ-846
USB Device: Built-in iSight, Micron, Up to 480 Mb/sec, 500 mA
USB Device: Apple Internal Keyboard / Trackpad, Apple Computer, Up to 12 Mb/sec, 500 mA
USB Device: IR Receiver, Apple Computer, Inc., Up to 12 Mb/sec, 500 mA
USB Device: Bluetooth HCI, Up to 12 Mb/sec, 500 mA