[ag.]

I recently changed the my MacBook's hard drive since my MacBook kept restarting. Now there's another problem.

Whenever i leave the MacBook on (using wifi) and come back the internet would be disconnected. Then when i click the AirPort button a message telling me to Restart The MacBook comes up.

So, i do restart the MacBook, and when it's back there will be a message saying "MacOS X quit unexpectedly".

This is the Problem Report Details:

panic(cpu 1 caller 0x0039CD77): "m_free: freeing an already freed mbuf"@/SourceCache/xnu/xnu-1228.0.2/bsd/kern/uipc_mbuf.c:2742
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x21077978 : 0x12b0e1 (0x455670 0x210779ac 0x133238 0x0)
0x210779c8 : 0x39cd77 (0x48e03c 0x1cd19800 0x20f5c01c 0x40)
0x21077a08 : 0x39d073 (0x1cd04500 0x8 0x21077a58 0x1)
0x21077a28 : 0x9dbb87 (0x1cd19800 0x0 0x20 0x60e675)
0x21077b98 : 0x9dbec5 (0x1287f2c8 0x12881150 0x0 0x2bbac40)
0x21077ce8 : 0x9e720b (0x12997004 0x0 0x21077d18 0x1a677c)
0x21077e68 : 0x9b784a (0x1287f4c0 0xfe8d9130 0x0 0x0)
0x21077eb8 : 0x9b8f3f (0xa3fc80 0xa3fc84 0x21077ed8 0x1a136f)
0x21077f48 : 0x9b74b7 (0x2fd4804 0x0 0x1b225000 0x19ccc1)
0x21077f78 : 0x13e987 (0x2fd4c94 0x2fd4804 0x0 0x2afd540)
0x21077fc8 : 0x19e2ec (0x0 0x0 0x1a10b5 0x30613c8)
Backtrace terminated-invalid frame pointer 0
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.AirPort.Atheros(300.22)@0x9b6000->0xa40fff
dependency: com.apple.iokit.IO80211Family(200.7)@0x998000
dependency: com.apple.iokit.IOPCIFamily(2.4)@0x63c000
dependency: com.apple.iokit.IONetworkingFamily(1.6.0)@0x64c000

BSD process name corresponding to current thread: kernel_task

Mac OS version:
9B18

Kernel version:
Darwin Kernel Version 9.1.0: Wed Oct 31 17:46:22 PDT 2007; root:xnu-1228.0.2~1/RELEASE_I386
System model name: MacBook2,1 (Mac-F4208CAA

I am using Leopard 10.5.1, MacBook (Mid-2007)

Please help me and tell me what is wrong with the MacBook!

Thank You.

[Cold Warrior]

Looks like airport driver issues. What wifi hardware (router model, brand) are you using?

[ag.]

I'm using ... 3Com router. Model Number: WL-525

[ginoledesma]

The error message looks very similar to the ones reported in the Apple Support Forums. One application notorious for causing this is Azureus. Are you using such an app? Turning off IPv6 / Link-Layer tends to help sometimes, but isn't always the cure. Others have switched fromto alternate apps (e.g. Transmission) until Apple works out the issue.

[ag.]

Yeah i am using Azureus Vuze 3.0. Should i switch to Transmission?