Date: Sat, 23 Sep 2006 21:56:45 +1000 From: Callum Gibson <callumgibson@optusnet.com.au> To: freebsd-stable@freebsd.org Subject: panic unloading bluetooth module Message-ID: <20060923115645.GA96872@omma.gibson.athome>
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Hi, I just experienced a panic after playing around with bluetooth. After a fresh boot I decided to try and unload the ng_ubt module and noted all the dependencies. So I tried to unload all of them in turn a few times. Some seemed to unload but kldstat showed many of them still and it seemed like I wasn't going to be able to unload them all. Then I pressed the wlan/bluetooth toggle button and had the panic. I'm synced to 6_RELENG as at 20th September. Apparently (null) below is where "ubt" should be. There are these 2 messages, but I had many more failed attempts to unload modules which had dependencies, so perhaps they are also significant. Sep 23 21:22:35 incant kernel: kldunload: attempt to unload file that was loaded by the kernel Sep 23 21:24:16 incant kernel: kldunload: attempt to unload file that was loaded by the kernel Then here is the panic message: Sep 23 21:26:49 incant kernel: (null): at uhub0 port 2 (addr 2) disconnected Sep 23 21:26:49 incant kernel: Sep 23 21:26:49 incant kernel: Sep 23 21:26:49 incant kernel: Fatal trap 12: page fault while in kernel mode Sep 23 21:26:49 incant kernel: fault virtual address = 0x78 Sep 23 21:26:49 incant kernel: fault code = supervisor read, page not present Sep 23 21:26:49 incant kernel: instruction pointer = 0x8:0xffffffff8022e06d Sep 23 21:26:49 incant kernel: stack pointer = 0x10:0xffffffffa36c3b20 Sep 23 21:26:49 incant kernel: frame pointer = 0x10:0xffffff0000bb7d00 Sep 23 21:26:49 incant kernel: code segment = base 0x0, limit 0xfffff, type 0x1b Sep 23 21:26:49 incant kernel: = DPL 0, pres 1, long 1, def32 0, gran 1 Sep 23 21:26:49 incant kernel: processor eflags = interrupt enabled, resume, IOPL = 0 Sep 23 21:26:49 incant kernel: current process = 25 (irq19: ohci0 ohci+ Sep 23 21:26:49 incant kernel: trap number = 12 Sep 23 21:26:49 incant kernel: panic: page fault -- Callum @ home http://members.optusnet.com.au/callumgibson/
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