Kernel Panic - Githubissues

What steps will reproduce the problem?
1. Use the System :)
2. Use the System
3. Follow Step 1.

What is the expected output? What do you see instead?
Interval Since Last Panic Report:  684944 sec
Panics Since Last Report:          12
Anonymous UUID:                    C7D328A3-6A2D-469D-BFD7-E0DBAFBB7A8E

Wed Aug 11 17:36:06 2010
panic(cpu 0 caller 0xffffff7f817a61b5): "ZFS: I/O failure (read on <unknown> 
off 0: zio 0xffffff8017b1f008 [L0 SPA space map] 1000L/200P 
DVA[0]=<0:4189d10600:200> DVA[1]=<0:24e456600:200> DVA[2]=<0:528187bc00:200> 
fletcher4 lzjb LE contiguous birth=782364 fill=1 
cksum=193f686b44:96a80b03edd:1d15bf1849190:3dfe456e6d8f8f): error " 
"5"@/Users/ksh/devel/maczfs_72/usr/src/uts/common/fs/zfs/zio.c:918
Backtrace (CPU 0), Frame : Return Address
0xffffff8091f6bda0 : 0xffffff8000204b99 
0xffffff8091f6bea0 : 0xffffff7f817a61b5 
0xffffff8091f6bf00 : 0xffffff7f817a9c85 
0xffffff8091f6bfa0 : 0xffffff80002c6367 
      Kernel Extensions in backtrace (with dependencies):
         com.apple.filesystems.zfs(72.1.10)@0xffffff7f8175d000->0xffffff7f817c5fff

BSD process name corresponding to current thread: kernel_task

Mac OS version:
10F569

Kernel version:
Darwin Kernel Version 10.4.0: Fri Apr 23 18:27:12 PDT 2010; 
root:xnu-1504.7.4~1/RELEASE_X86_64
System model name: MacBookPro5,2 (Mac-F2268EC8)

Original issue reported on code.google.com by smazap....@gmail.com on 11 Aug 2010 at 3:49

gmzang / maczfs

Kernel Panic #52