Recurring kernel panics

Discussion in 'macOS' started by Henrik85, Feb 28, 2011.

  1. Henrik85 macrumors member

    Mar 3, 2009
    Stockholm, Sweden
    I've been having recurring kernel panics for the last year or so. It usually happens 1-2 times each month.

    9 out of 10 times, it happens when I'm away from the computer. I think it's related to the internet sharing feature or the airport adapter.

    My setup looks like this: Internet <- VPN connection <- Ethernet <- Wireless sharing/routing

    One time when I was going to activate airport and the internet sharing via the menu bar, it happened instantly.

    I would be very grateful if someone could point me in the right direction.

    Here's the most recent log:
    Interval Since Last Panic Report:  4304941 sec
    Panics Since Last Report:          7
    Anonymous UUID:                    1916A305-79CE-4D56-A1B9-D0EC231A6D48
    Tue Mar  1 06:57:47 2011
    panic(cpu 1 caller 0x226b53): "thread_invoke: preemption_level -1, possible cause: unlocking an unlocked mutex or spinlock"@/SourceCache/xnu/xnu-1504.9.26/osfmk/kern/sched_prim.c:1471
    Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
    0x52c63e28 : 0x21b50c (0x5d4438 0x52c63e5c 0x223974 0x0) 
    0x52c63e78 : 0x226b53 (0x58babc 0xffffffff 0x58ba54 0x226423) 
    0x52c63ef8 : 0x227259 (0xacc0b98 0x52c63fe0 0x84008278 0x52c63fc8) 
    0x52c63f68 : 0x219159 (0x2a0695 0x0 0x1 0x4f11e1) 
    0x52c63fa8 : 0x2a9a9a (0xffffffff 0x1 0x2a142f 0xb43dd84) 
    0x52c63fc8 : 0x2a08a6 (0x0 0x0 0x10 0xb43dd84) 
    BSD process name corresponding to current thread: natd
    Mac OS version:
    Kernel version:
    Darwin Kernel Version 10.6.0: Wed Nov 10 18:13:17 PST 2010; root:xnu-1504.9.26~3/RELEASE_I386
    System model name: Macmini3,1 (Mac-F22C86C8)
    System uptime in nanoseconds: 451849963647830
    unloaded kexts:	423.91.27 (addr 0xf2d000, size 0x1900544) - last unloaded 202766819105
    loaded kexts:
    com.regularrateandrhythm.driver.RowmoteIREmu	1.0	2.0.1
    com.vmware.kext.vmnet	3.0.0
    com.vmware.kext.vmioplug	3.0.0
    com.vmware.kext.vmci	3.0.0
    com.vmware.kext.vmx86	3.0.0
    foo.tun	1.0
    foo.tap	1.0
    jp.plentycom.driver.SteerMouse	4.0.2
    com.vara.driver.VaraAudio	1.0.2
    com.Cycling74.driver.Soundflower	1.5.1
    com.iospirit.driver.rbiokithelper	1.8.1
    at.obdev.nke.LittleSnitch	2.2.05	2.1 - last loaded 13798936233798	1.5	1.9.3d0	2.1.0	2.0.2d1	100.12.19	3.4.5	1.0.17	1.4.12	1.13	1.9.9f12	7.0.0	364	366	1.1.6	17.1	4.5.0d5	6.2.6	2.6.5	1.6.3	31	1.0.0d1	1.5	4.7.1	2.1.5	4.1.7	426.36.1	4.1.7	4.1.5	1.4.0	1.3.1	2.0.15	1.3.5	1.6	1.3.5	1.4	105.13.0	1	0	2.1.11	105.13.0	1.5	17	6.2.6	1.9.9f12	10	14	10	10	20	74.2	2.3.8f7	10.0.3	2.0.3	365	1.8.0fc1	1.3	41.4	3.1.0d3	4.5.0d5	1.9.9f12	1.9.9f12	6.2.6	2.2	2.2	2.3.8f7	2.3.8f7	2.3.8f7	141	141	2.6.5	4.1.5	2.6.5	2.6.5	1.6	1.6	1.6	4.1.5	3.9.0	1.2.5	2.6.5	402.1	4.2.6	2.0.4	4.1.5	312	4.1.7	1.4.0	1.9	2.2.7	1.6.5	1.1	1.0.0d1	6	289	1.6.2	1.3.5	2.6	1.3.0
    Model: Macmini3,1, BootROM MM31.0081.B06, 2 processors, Intel Core 2 Duo, 2 GHz, 4 GB, SMC 1.35f0
    Graphics: NVIDIA GeForce 9400, NVIDIA GeForce 9400, PCI, 256 MB
    Memory Module: global_name
    AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x90), Broadcom BCM43xx 1.0 (
    Bluetooth: Version 2.3.8f7, 2 service, 19 devices, 1 incoming serial ports
    Network Service: Ethernet, Ethernet, en0
    Network Service: AirPort, AirPort, en1
    Network Service: Anonine, PPP (PPTP), ppp0
    Serial ATA Device: Hitachi HTS543212L9SA02, 111.79 GB
    Serial ATA Device: PIONEER DVD-RW  DVRTS08
    USB Device: Keyboard Hub, 0x05ac  (Apple Inc.), 0x1006, 0x26400000
    USB Device: Apple Keyboard, 0x05ac  (Apple Inc.), 0x0221, 0x26420000
    USB Device: External HDD, 0x1058  (Western Digital Technologies, Inc.), 0x1001, 0x26200000
    USB Device: External HDD, 0x1058  (Western Digital Technologies, Inc.), 0x1003, 0x24700000
    USB Device: USB2.0 Hub, 0x05e3  (Genesys Logic, Inc.), 0x0608, 0x24300000
    USB Device: USB-PS/2 Optical Mouse, 0x046d  (Logitech Inc.), 0xc01e, 0x24310000
    USB Device: BRCM2046 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0x06100000
    USB Device: Bluetooth USB Host Controller, 0x05ac  (Apple Inc.), 0x8216, 0x06110000
    USB Device: IR Receiver, 0x05ac  (Apple Inc.), 0x8242, 0x04500000
  2. Henrik85 thread starter macrumors member

    Mar 3, 2009
    Stockholm, Sweden
    While searching for a solution to this problem, I found out that the Cisco VPN kernel extension is known to often cause kernel panics.

    I happened to have this kernel extension on my system (CiscoVPN.kext).

    After deleting it, I haven't had a single panic for several days now.

    So far so good... :)
  3. r0k macrumors 68040


    Mar 3, 2008
    Glad you got it sorted out. It would be helpful if you post back in another month to confirm the kernel panics are gone for good...
  4. Henrik85 thread starter macrumors member

    Mar 3, 2009
    Stockholm, Sweden
    Will do :) It's been running for 10 days (24/7) straight now :)
  5. iSAWaUFO macrumors newbie

    Dec 3, 2006
    How to remove CiscoVPN.kext ??

    Can you provide more details about removing the file CiscoVPN.kext?
    I have Cisco Anyconnect VPN client and I believe my 10.5.8 Mac Pro started crashing with Kernel Panics soon after installing the VPN client.

    Can you continue using the VPN client if you remove the file? Where is the file located. Do you just remove it and reboot? Does VPN still work?
  6. Henrik85 thread starter macrumors member

    Mar 3, 2009
    Stockholm, Sweden
    You probably won't be able to use the client if you remove the kext file.

    I don't remember where it's located - do a search for it.

    I basically just deleted it and rebooted my machine. I don't know what kind of VPN connection you have, but the one I'm using works fine with the built-in VPN client (although I must say it's very limited).
  7. mfripp macrumors newbie

    Jun 30, 2010
    If you want to remove the kext, you should probably remove the Cisco VPN client entirely. You can do that following the instructions at (which also shows that CiscoVPN.kext is in /System/Library/Extensions).

    In my experience, Macs have not really needed the CiscoVPN client for a while, at least for IPsec access. The built-in VPN client works very well (System Preferences -> Network -> + to add a network interface -> VPN -> Cisco IPSec).

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