misc/182141: Very frequent (at most 3 hours) kernel trap 12

[Berend de Boer]

The following reply was made to PR misc/182141; it has been noted by GNATS.

From: Berend de Boer <berend at pobox.com>
To: bug-followup at FreeBSD.org, berend at pobox.com
Cc:  
Subject: Re: misc/182141: Very frequent (at most 3 hours) kernel trap 12
Date: Tue, 24 Sep 2013 19:08:43 +1200

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 Slightly different stack trace with kernel without ALTQ, and without INET=
 6.
 
 Sep 24 18:58:58 bmach kernel: Fatal trap 12: page fault while in kernel m=
 ode
 Sep 24 18:58:58 bmach kernel: cpuid =3D 1; apic id =3D 01
 Sep 24 18:58:58 bmach kernel: fault virtual address	=3D 0x10
 Sep 24 18:58:58 bmach kernel: fault code		=3D supervisor read data, page
 not present
 Sep 24 18:58:58 bmach kernel: instruction pointer	=3D 0x20:0xffffffff816f=
 4dee
 Sep 24 18:58:58 bmach kernel: stack pointer	        =3D
 0x28:0xffffff811945d390
 Sep 24 18:58:58 bmach kernel: frame pointer	        =3D
 0x28:0xffffff811945d540
 Sep 24 18:58:58 bmach kernel: code segment		=3D base 0x0, limit 0xfffff,
 type 0x1b
 Sep 24 18:58:58 bmach kernel: =3D DPL 0, pres 1, long 1, def32 0, gran 1
 Sep 24 18:58:58 bmach kernel: processor eflags	=3D interrupt enabled,
 resume, IOPL =3D 0
 Sep 24 18:58:58 bmach kernel: current process		=3D 1739 (named)
 Sep 24 18:58:58 bmach kernel: trap number		=3D 12
 Sep 24 18:58:58 bmach kernel: panic: page fault
 Sep 24 18:58:58 bmach kernel: cpuid =3D 1
 Sep 24 18:58:58 bmach kernel: KDB: stack backtrace:
 Sep 24 18:58:58 bmach kernel: #0 0xffffffff8091a936 at kdb_backtrace+0x66=
 
 Sep 24 18:58:58 bmach kernel: #1 0xffffffff808e4a8d at panic+0x1cd
 Sep 24 18:58:58 bmach kernel: #2 0xffffffff80b9cd90 at trap_fatal+0x290
 Sep 24 18:58:58 bmach kernel: #3 0xffffffff80b9d0cd at trap_pfault+0x1ed
 Sep 24 18:58:58 bmach kernel: #4 0xffffffff80b9d6ee at trap+0x3ce
 Sep 24 18:58:58 bmach kernel: #5 0xffffffff80b87cff at calltrap+0x8
 Sep 24 18:58:58 bmach kernel: #6 0xffffffff816f6906 at pf_test+0xc26
 Sep 24 18:58:58 bmach kernel: #7 0xffffffff816fd891 at pf_check_out+0x41
 Sep 24 18:58:58 bmach kernel: #8 0xffffffff809a81ce at pfil_run_hooks+0x9=
 e
 Sep 24 18:58:58 bmach kernel: #9 0xffffffff80a04227 at ip_output+0x407
 Sep 24 18:58:58 bmach kernel: #10 0xffffffff80a79b19 at udp_send+0x509
 Sep 24 18:58:58 bmach kernel: #11 0xffffffff8094f527 at sosend_dgram+0x2d=
 7
 Sep 24 18:58:58 bmach kernel: #12 0xffffffff80953813 at kern_sendit+0x1a3=
 
 Sep 24 18:58:58 bmach kernel: #13 0xffffffff80953aac at sendit+0xdc
 Sep 24 18:58:58 bmach kernel: #14 0xffffffff80953b37 at sys_sendmsg+0x87
 Sep 24 18:58:58 bmach kernel: #15 0xffffffff80b9c636 at amd64_syscall+0x5=
 46
 Sep 24 18:58:58 bmach kernel: #16 0xffffffff80b87fe7 at Xfast_syscall+0xf=
 7
 
 
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