Date: Mon, 1 Oct 2012 08:04:08 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org Cc: Kim Culhan <w8hdkim@gmail.com> Subject: Re: panic possibly on on bridge member removal Message-ID: <201210010804.08925.jhb@freebsd.org> In-Reply-To: <CAKZxVQU0azfJShEiRgjsCu2aRqcBFi1qV7HDajFY2y=Dz084Gw@mail.gmail.com> References: <CAKZxVQU0azfJShEiRgjsCu2aRqcBFi1qV7HDajFY2y=Dz084Gw@mail.gmail.com>
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On Saturday, September 29, 2012 8:40:03 am Kim Culhan wrote: > After a few hours of operation involving tap0 added to the bridge > running openvpn > and shutting down openvpn which removes tap0 from the bridge, the > machine is found to have a panic: > > Fatal trap 12: page fault while in kernel mode > cpuid = 1; apic id = 01 > fault virtual address = 0x188 > fault code = supervisor read data, page not present > instruction pointer = 0x20:0xffffffff82a14f96 > stack pointer = 0x28:0xffffff8000285670 > frame pointer = 0x28:0xffffff80002856b0 > code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, long 1, def32 0, gran 1 > processor eflags = interrupt enabled, resume, IOPL = 0 > current process = 12 (swi5: fast taskq) > [ thread pid 12 tid 100022 ] > Stopped at bridge_enqueue+0x86: calll *0x188(%r12) > db> bt > Tracing pid 12 tid 100022 td 0xfffffe0003aff000 > bridge_enqueue() at bridge_enqueue+0x86 Can you run 'gdb /boot/kernel/kernel' and do 'l *bridge_enqueue+0x86'? -- John Baldwin
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