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Date: Mon, 20 Jun 2005 19:20:09 +0400
From: Andrey Chernov <ache@nagual.pp.ru>
To: current@freebsd.org
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Subject: page fault in tcp_dooptions()
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Fresh -current panic in tcp_dooptions():

Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x4
fault code              = supervisor read, page not present
instruction pointer     = 0x20:0xc053aae2
stack pointer           = 0x28:0xcc7e9a78
frame pointer           = 0x28:0xcc7e9ac8
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 29 (swi1: net)
trap number             = 12
panic: page fault

#0  0xc049f19c in doadump ()
#1  0xc049f6a4 in boot ()
#2  0xc049fd22 in panic ()
#3  0xc05d1c5f in trap_fatal ()
#4  0xc05d1efb in trap_pfault ()
#5  0xc05d22d0 in trap ()
#6  0xc05c344a in calltrap ()
#7  0xcc7e0008 in ?? ()
#8  0xc05c0028 in pnpbios_identify ()
#9  0xc0535db0 in tcp_dooptions ()
#10 0xc0536866 in tcp_input ()
#11 0xc052fa72 in ip_input ()
#12 0xc051e3bb in netisr_processqueue ()
#13 0xc051e687 in swi_net ()
#14 0xc0486aa4 in ithread_loop ()
#15 0xc0485a6d in fork_exit ()
#16 0xc05c34ac in fork_trampoline ()


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