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Date: Wed, 6 Aug 2003 08:07:58 -0400 (EDT)
From: Bryan Liesner <bleez@comcast.net>
To: freebsd-current@freebsd.org
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Subject: PANIC shutting down inetd
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I get the following panic while shutting down the system or simply
issuing a kill to inetd.

This happens each and every time, but locks the system, so a dump
isn't available.
The kernel is compiled without WITNESS and without INVARIANTS.

Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x8108810
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc02e02d
stack pointer           = 0x10:0xdcdfaa50
frame pointer           = 0x10:0xdcdfaa50
code  segment           = base 0x0 limit 0xffff, type 0x1b
                        = DPL 0, pres 1, def32 1,gran 1
processor eflags        = interrupt enabled, resume, IOPL=0
current process         = 381 (inetd)
trap number             = 12
panic page fault

DDB says:
Stopped at in_pcbremlists+0x8d

stack trace:

in_pcbremlists()
in_pcbdetach()
tcp_close()
tcp_disconnect()
tcp_usr_detach()
soclose()
soo_close()
fdrop_locked()
fdrop()