[jhogarty]

Been running my new machine for about a week. Today was the first time I've had any issues. Twice today while trying to shutdown I got a message to hold down the power key. When I restart the machine, I get this error:

panic(cpu 1 caller 0x000E4F6C): vnode_rele_ext: vp 3869f78 usecount -ve : -1
Latest stack backtrace for cpu 1:
Backtrace:
0x00095564 0x00095A7C 0x0002683C 0x000E4F6C 0x000EB938 0x000E64E4 0x0026C774 0x002790F0
0x002A8604 0x000ABCB0 0x006E297E
Proceeding back via exception chain:
Exception state (sv=0x6356FC80)
PC=0x900C2E20; MSR=0x0000D030; DAR=0x901EB3CA; DSISR=0x40000000; LR=0x0000292C; R1=0xBFFFFEA0; XCP=0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 8.1.0: Tue May 10 18:16:08 PDT 2005; root:xnu-792.1.5.obj~4/RELEASE_PPCModel: PowerMac7,3, BootROM 5.1.8f7, 2 processors, PowerPC G5 (3.0), 2.5 GHz, 2.5 GB
Graphics: ATI Radeon 9600 XT, ATY,RV360, AGP, 128 MB
Memory Module: DIMM0/J11, 256 MB, DDR SDRAM, PC3200U-30330
Memory Module: DIMM1/J12, 256 MB, DDR SDRAM, PC3200U-30330
Memory Module: DIMM2/J13, 512 MB, DDR SDRAM, PC3200U-25330
Memory Module: DIMM3/J14, 512 MB, DDR SDRAM, PC3200U-25330
Memory Module: DIMM4/J41, 512 MB, DDR SDRAM, PC3200U-25330
Memory Module: DIMM5/J42, 512 MB, DDR SDRAM, PC3200U-25330
Modem: Jump, , V.92, Version 1.0,
Network Service: Built-in Ethernet, Ethernet, en0
Serial ATA Device: ST3160023AS, 149.05 GB
Parallel ATA Device: SONY DVD RW DW-U21A,
USB Device: USB Token, , Up to 1.5 Mb/sec, 500 mA
USB Device: Hub, , Up to 480 Mb/sec, 500 mA
USB Device: Hub in Apple Pro Keyboard, Mitsumi Electric, Up to 12 Mb/sec, 500 mA
USB Device: Apple Optical USB Mouse, Logitech, Up to 1.5 Mb/sec, 100 mA
USB Device: Apple Pro Keyboard, Mitsumi Electric, Up to 12 Mb/sec, 250 mA
USB Device: Apple Cinema HD Display, , Up to 1.5 Mb/sec, 100 mA
FireWire Device: iPod, Apple Computer, Inc., Up to 400 Mb/sec
FireWire Device: unknown_device, unknown_value, Up to 400 Mb/sec


Anyone know if this is a simple fix? Both times I got this the machine was running for at least 3 hours.

J...

[Big Mac]

That's a kernel panic. It's hard to say what to attribute it to - I've heard of vnode panics before but can't find an explanation for them. (Sometimes you can immediately recognize the source of the Panic from the log.) KPs can be either hardware or software related; one thing people often find to be the culprit is third party RAM. Go over to the Mac OS forum and read Detrius' freeze/kernel panic thread for additional information.

[jhogarty]

Thanks, I'll go take a look. I do have 2GB of Third Party Ram. I can try pulling and plugging. Just thought it weird that it only seems to happen when the computer is running for 3 hours or more.

J...