Kernel Panic of Finder

This happened while accessing a folder on the Synology NAS.

1. Put the mac to sleep, and wake it up again, the shared disks on NAS are not available right away.
2. The system first shows a popup telling the shared folder are unavailable.
3. At that moment there are two options'ignore' or 'disconnect'. Select 'ignore'
4. Browse the files on NAS and get the kernel panic.


Interval Since Last Panic Report: 341560 sec
Panics Since Last Report: 2
Anonymous UUID: 534725CF-9812-48D0-997C-0121B78E0595

Sun Feb 21 12:28:37 2010
panic(cpu 2 caller 0x5e7207e3): "afpfs_getnewvnode: orphaned vnode (data)"@/SourceCache/afpfs/afpfs-531.1/Sources/afpfs_vfsutils.c:169
Backtrace (CPU 2), Frame : Return Address (4 potential args on stack)
0x4b26b8a8 : 0x21b2bd (0x5cf868 0x4b26b8dc 0x223719 0x0)
0x4b26b8f8 : 0x5e7207e3 (0x5e749640 0x4e 0x4b26b9dc 0x2)
0x4b26b988 : 0x5e724d29 (0x3715e004 0x0 0x4b26b9b4 0x8b52604)
0x4b26b9f8 : 0x5e72e670 (0x3715e004 0xcb51afc 0x4b26ba74 0x1)
0x4b26ba98 : 0x2f677e (0x4b26bab0 0x3 0x4b26bae8 0x464f0f)
0x4b26bae8 : 0x2f3927 (0xcb51afc 0x5947f0 0x0 0x4b26bdcc)
0x4b26bb38 : 0x2c6336 (0xcb51afc 0x5947f0 0x0 0x4b26bdcc)
0x4b26bde8 : 0x2c667c (0xddb2ab4 0x8635f4 0x0 0x0)
0x4b26bf78 : 0x4ee947 (0x8aa2d20 0x7cd5a88 0xddb29f4 0x0)
0x4b26bfc8 : 0x29e3fd (0x7cd5a84 0x0 0x10 0xddacee0)
Kernel Extensions in backtrace (with dependencies):
com.apple.filesystems.afpfs(9.6)@0x5e6fd000->0x5e753fff

BSD process name corresponding to current thread: Finder

Mac OS version:
10C540

Kernel version:
Darwin Kernel Version 10.2.0: Tue Nov 3 10:37:10 PST 2009; root:xnu-1486.2.11~1/RELEASE_I386
System model name: MacPro1,1 (Mac-F4208DC8)

System uptime in nanoseconds: 36836425323411



May someone tell me what caused the error? The NAS or finder? Thanks a lot!!