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Date:      Wed, 27 Nov 2013 02:17:56 GMT
From:      Dmitry <dilmas.kras@gmail.com>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   kern/184320: Kernel dump when try route IPv6-address
Message-ID:  <201311270217.rAR2Hu2H068584@oldred.freebsd.org>
Resent-Message-ID: <201311270220.rAR2K00r036693@freefall.freebsd.org>

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>Number:         184320
>Category:       kern
>Synopsis:       Kernel dump when try route IPv6-address
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Nov 27 02:20:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Dmitry
>Release:        9.1-STABLE
>Organization:
>Environment:
FreeBSD ngs.g-service.ru 9.1-STABLE FreeBSD 9.1-STABLE #1: Sat Jun 22 13:57:50 KRAT 2013     root@ngs.g-service.ru:/usr/obj/usr/src/sys/GENERIC  amd64

>Description:
ngs# kgdb kernel.debug /var/crash/vmcore.0
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "amd64-marcel-freebsd"...

Unread portion of the kernel message buffer:


Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0x0
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff809242d9
stack pointer           = 0x28:0xffffff824416b800
frame pointer           = 0x28:0xffffff824416b960
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         = 55315 (route)
trap number             = 12
panic: page fault
cpuid = 1
KDB: stack backtrace:
#0 0xffffffff8088ed86 at kdb_backtrace+0x66
#1 0xffffffff80858d9e at panic+0x1ce
#2 0xffffffff80bd8320 at trap_fatal+0x290
#3 0xffffffff80bd8658 at trap_pfault+0x1e8
#4 0xffffffff80bd8c5e at trap+0x3be
#5 0xffffffff80bc22df at calltrap+0x8
#6 0xffffffff808c4216 at sosend_generic+0x3f6
#7 0xffffffff808a813e at soo_write+0x5e
#8 0xffffffff808a0ce5 at dofilewrite+0x85
#9 0xffffffff808a101c at kern_writev+0x6c
#10 0xffffffff808a10a4 at sys_write+0x64
#11 0xffffffff80bd7c00 at amd64_syscall+0x540
#12 0xffffffff80bc25c7 at Xfast_syscall+0xf7
Uptime: 221d7h57m1s

..

(kgdb) list *0xffffffff809242d9
0xffffffff809242d9 is in route_output (/usr/src/sys/net/rtsock.c:805).
800                             info.rti_info[RTAX_NETMASK] = rt_mask(rt);
801                             info.rti_info[RTAX_GENMASK] = 0;
802                             if (rtm->rtm_addrs & (RTA_IFP | RTA_IFA)) {
803                                     ifp = rt->rt_ifp;
804                                     if (ifp) {
805                                             info.rti_info[RTAX_IFP] =
806                                                 ifp->if_addr->ifa_addr;
807                                             error = rtm_get_jailed(&info, ifp, rt,
808                                                 &saun, curthread->td_ucred);
809                                             if (error != 0) {

>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:



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