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Date:      Mon, 18 May 2015 10:21:13 +0300
From:      =?utf-8?B?0JHQtdC30LfRg9Cx0L7QsiDQkNC70LXQutGB0LDQvdC00YA=?= <bezzubov@gmail.com>
To:        freebsd-ipfw@freebsd.org
Subject:   Panic kernel 10.0&10.1
Message-ID:  <61ECD41E-247A-426C-92BD-9B8D496FFB93@gmail.com>

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Hello!
Please help to find problem why kernel panic on 10.0 and 10.1?
=E2=80=94
# uname -a
FreeBSD nas3.xxx.net 10.0-RELEASE-p9 FreeBSD 10.0-RELEASE-p9 #0: Thu Sep =
25 04:23:16 MSK 2014

# kgdb kernel.debug /var/crash/vmcore.7
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:
instruction pointer    =3D 0x20:0xffffffff80a49825
stack pointer           =3D 0x28:0xfffffe011ea908a0
frame pointer           =3D 0x28:0xfffffe011ea908f0
code segment        =3D base 0x0, limit 0xfffff, type 0x1b
            =3D DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags    =3D interrupt enabled, resume, IOPL =3D 0
current process        =3D 0 (dummynet)
trap number        =3D 12
panic: page fault
cpuid =3D 0
KDB: stack backtrace:
#0 0xffffffff809321b0 at kdb_backtrace+0x60
#1 0xffffffff808f9c95 at panic+0x155
#2 0xffffffff80d167e2 at trap_fatal+0x3a2
#3 0xffffffff80d16ab9 at trap_pfault+0x2c9
#4 0xffffffff80d16246 at trap+0x5e6
#5 0xffffffff80cfd4e2 at calltrap+0x8
#6 0xffffffff809bf1ae at netisr_dispatch_src+0x5e
#7 0xffffffff80afd79c at dummynet_send+0x10c
#8 0xffffffff80afd394 at dummynet_task+0x2c4
#9 0xffffffff8093ff46 at taskqueue_run_locked+0xe6
#10 0xffffffff809407c8 at taskqueue_thread_loop+0xa8
#11 0xffffffff808cb05a at fork_exit+0x9a
#12 0xffffffff80cfda1e at fork_trampoline+0xe
Uptime: 1d0h35m18s
Dumping 570 out of 4045 =
MB:..3%..12%..23%..31%..43%..51%..62%..71%..82%..93%

Reading symbols from /boot/kernel/coretemp.ko.symbols...done.
Loaded symbols for /boot/kernel/coretemp.ko.symbols
Reading symbols from /boot/kernel/ng_ipfw.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_ipfw.ko.symbols
Reading symbols from /boot/kernel/ng_car.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_car.ko.symbols
Reading symbols from /boot/kernel/ums.ko.symbols...done.
Loaded symbols for /boot/kernel/ums.ko.symbols
Reading symbols from /boot/kernel/ng_socket.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_socket.ko.symbols
Reading symbols from /boot/kernel/ng_tee.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_tee.ko.symbols
Reading symbols from /boot/kernel/ng_tcpmss.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_tcpmss.ko.symbols
Reading symbols from /boot/kernel/ng_vjc.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_vjc.ko.symbols
Reading symbols from /boot/kernel/zfs.ko.symbols...done.
Loaded symbols for /boot/kernel/zfs.ko.symbols
Reading symbols from /boot/kernel/opensolaris.ko.symbols...done.
Loaded symbols for /boot/kernel/opensolaris.ko.symbols
#0  doadump (textdump=3D<value optimized out>) at pcpu.h:219
219        __asm("movq %%gs:%1,%0" : "=3Dr" (td)
(kgdb) bt
#0  doadump (textdump=3D<value optimized out>) at pcpu.h:219
#1  0xffffffff808f9910 in kern_reboot (howto=3D260) at =
/usr/src/sys/kern/kern_shutdown.c:447
#2  0xffffffff808f9cd4 in panic (fmt=3D<value optimized out>) at =
/usr/src/sys/kern/kern_shutdown.c:754
#3  0xffffffff80d167e2 in trap_fatal (frame=3D<value optimized out>, =
eva=3D<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:882
#4  0xffffffff80d16ab9 in trap_pfault (frame=3D0xfffffe011ea907f0, =
usermode=3D0) at /usr/src/sys/amd64/amd64/trap.c:699
#5  0xffffffff80d16246 in trap (frame=3D0xfffffe011ea907f0) at =
/usr/src/sys/amd64/amd64/trap.c:463
#6  0xffffffff80cfd4e2 in calltrap () at =
/usr/src/sys/amd64/amd64/exception.S:232
#7  0xffffffff80a49825 in ip_input (m=3D0xfffff80008727700) at =
/usr/src/sys/netinet/ip_input.c:623
#8  0xffffffff809bf1ae in netisr_dispatch_src (proto=3D<value optimized =
out>, source=3D<value optimized out>, m=3D0x4000000001) at =
/usr/src/sys/net/netisr.c:972
#9  0xffffffff80afd79c in dummynet_send (m=3D<value optimized out>) at =
/usr/src/sys/netpfil/ipfw/ip_dn_io.c:665
#10 0xffffffff80afd394 in dummynet_task (context=3D<value optimized =
out>, pending=3D<value optimized out>) at =
/usr/src/sys/netpfil/ipfw/ip_dn_io.c:625
#11 0xffffffff8093ff46 in taskqueue_run_locked =
(queue=3D0xfffff800103b6c00) at /usr/src/sys/kern/subr_taskqueue.c:333
#12 0xffffffff809407c8 in taskqueue_thread_loop (arg=3D<value optimized =
out>) at /usr/src/sys/kern/subr_taskqueue.c:535
#13 0xffffffff808cb05a in fork_exit (callout=3D0xffffffff80940720 =
<taskqueue_thread_loop>, arg=3D0xffffffff8151efc8, =
frame=3D0xfffffe011ea90ac0) at /usr/src/sys/kern/kern_fork.c:995
#14 0xffffffff80cfda1e in fork_trampoline () at =
/usr/src/sys/amd64/amd64/exception.S:606
#15 0x0000000000000000 in ?? ()
Current language:  auto; currently minimal
=E2=80=94

Then I upgraded to 10.1:
=E2=80=94

# uname -a
FreeBSD nas3.XXX.net 10.1-RELEASE-p9 FreeBSD 10.1-RELEASE-p9 #0: Tue May =
 5 00:50:29 MSK 2015     root@nas3.XXX.net:/usr/obj/usr/src/sys/GENERIC  =
amd64

Yesterday server restarted again:

root@nas3:~ # last -10
root       pts/1    10.1.2.2               Thu May  7 00:06   still =
logged in
root       pts/0    help.XXX.net      Wed May  6 23:56   still logged in
boot time                                  Wed May  6 18:56
root       pts/0    10.1.2.2               Tue May  5 11:54 - 13:44  =
(01:49)

In /var/crash I have:
-rw-------  1 root  wheel  639356928 May  6 18:55 vmcore.8

kgdb:
root@nas3:/usr/obj/usr/src/sys/GENERIC # kgdb kernel.debug =
/var/crash/vmcore.8
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:

Reading symbols from /boot/kernel/coretemp.ko.symbols...done.
Loaded symbols for /boot/kernel/coretemp.ko.symbols
Reading symbols from /boot/kernel/netgraph.ko.symbols...done.
Loaded symbols for /boot/kernel/netgraph.ko.symbols
Reading symbols from /boot/kernel/ng_ipfw.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_ipfw.ko.symbols
Reading symbols from /boot/kernel/ipfw.ko.symbols...done.
Loaded symbols for /boot/kernel/ipfw.ko.symbols
Reading symbols from /boot/kernel/ng_car.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_car.ko.symbols
Reading symbols from /boot/kernel/ums.ko.symbols...done.
Loaded symbols for /boot/kernel/ums.ko.symbols
Reading symbols from /boot/kernel/ng_socket.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_socket.ko.symbols
Reading symbols from /boot/kernel/ng_mppc.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_mppc.ko.symbols
Reading symbols from /boot/kernel/rc4.ko.symbols...done.
Loaded symbols for /boot/kernel/rc4.ko.symbols
Reading symbols from /boot/kernel/ng_ether.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_ether.ko.symbols
Reading symbols from /boot/kernel/ng_pppoe.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_pppoe.ko.symbols
Reading symbols from /boot/kernel/ng_tee.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_tee.ko.symbols
Reading symbols from /boot/kernel/ng_pptpgre.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_pptpgre.ko.symbols
Reading symbols from /boot/kernel/ng_ksocket.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_ksocket.ko.symbols
Reading symbols from /boot/kernel/ng_iface.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_iface.ko.symbols
Reading symbols from /boot/kernel/ng_ppp.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_ppp.ko.symbols
Reading symbols from /boot/kernel/ng_netflow.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_netflow.ko.symbols
Reading symbols from /boot/kernel/ng_tcpmss.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_tcpmss.ko.symbols
Reading symbols from /boot/kernel/ng_bpf.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_bpf.ko.symbols
Reading symbols from /boot/kernel/zfs.ko.symbols...done.
Loaded symbols for /boot/kernel/zfs.ko.symbols
Reading symbols from /boot/kernel/opensolaris.ko.symbols...done.
Loaded symbols for /boot/kernel/opensolaris.ko.symbols
Reading symbols from /boot/kernel/ng_vjc.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_vjc.ko.symbols
Reading symbols from /boot/kernel/ng_l2tp.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_l2tp.ko.symbols
#0  doadump (textdump=3D<value optimized out>) at pcpu.h:219
219        __asm("movq %%gs:%1,%0" : "=3Dr" (td)

(kgdb) bt
#0  doadump (textdump=3D<value optimized out>) at pcpu.h:219
#1  0xffffffff80927da2 in kern_reboot (howto=3D260) at =
/usr/src/sys/kern/kern_shutdown.c:452
#2  0xffffffff80928164 in panic (fmt=3D<value optimized out>) at =
/usr/src/sys/kern/kern_shutdown.c:759
#3  0xffffffff80d24f5f in trap_fatal (frame=3D<value optimized out>, =
eva=3D<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:865
#4  0xffffffff80d25278 in trap_pfault (frame=3D0xfffffe011a565310, =
usermode=3D<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:676
#5  0xffffffff80d248da in trap (frame=3D0xfffffe011a565310) at =
/usr/src/sys/amd64/amd64/trap.c:440
#6  0xffffffff80d0a7c2 in calltrap () at =
/usr/src/sys/amd64/amd64/exception.S:232
#7  0xffffffff81a466db in bpf_filter (pc=3D0x34646dc7, =
p=3D0xfffff8003e94380e "E", wirelen=3D40, buflen=3D40) at =
/usr/src/sys/modules/netgraph/bpf/../../../net/bpf_filter.c:193
#8  0xffffffff81a4645f in ng_bpf_rcvdata (hook=3D<value optimized out>, =
item=3D<value optimized out>) at =
/usr/src/sys/modules/netgraph/bpf/../../../netgraph/ng_bpf.c:476
#9  0xffffffff8195d0ca in ng_apply_item (node=3D0xfffff80119342a00, =
item=3D0xfffff8003e2c5400, rw=3D0) at =
/usr/src/sys/modules/netgraph/netgraph/../../../netgraph/ng_base.c:2397
#10 0xffffffff8195cd1a in ng_snd_item (item=3D0xfffff8003e2c5400, =
flags=3D<value optimized out>) at =
/usr/src/sys/modules/netgraph/netgraph/../../../netgraph/ng_base.c:2314
#11 0xffffffff81a31d59 in ng_iface_send (ifp=3D0xfffff80119d61800, =
m=3D<value optimized out>, sa=3D<value optimized out>) at =
/usr/src/sys/modules/netgraph/iface/../../../netgraph/ng_iface.c:473
#12 0xffffffff81a318b8 in ng_iface_output (ifp=3D0xfffff80119d61800, =
m=3D0xfffff8003ec6da00, dst=3D<value optimized out>, ro=3D0x0)
    at =
/usr/src/sys/modules/netgraph/iface/../../../netgraph/ng_iface.c:408
#13 0xffffffff80a59024 in ip_output (m=3D0xfffff8003ec6da00, opt=3D<value =
optimized out>, flags=3D<value optimized out>, imo=3D<value optimized =
out>, inp=3D<value optimized out>)
    at /usr/src/sys/netinet/ip_output.c:638
#14 0xffffffff80a558ff in ip_forward (m=3D0xfffff8003ec6da00, =
srcrt=3D<value optimized out>) at /usr/src/sys/netinet/ip_input.c:1472
#15 0xffffffff80a5557d in ip_input (m=3D0xfffff8003ec6da00) at =
/usr/src/sys/netinet/ip_input.c:681
#16 0xffffffff809f44e2 in netisr_dispatch_src (proto=3D<value optimized =
out>, source=3D<value optimized out>, m=3D0x0) at =
/usr/src/sys/net/netisr.c:972
#17 0xffffffff809eb996 in ether_demux (ifp=3D<value optimized out>, =
m=3D0xfffff8003ec6da00) at /usr/src/sys/net/if_ethersubr.c:851
#18 0xffffffff809ec63e in ether_nh_input (m=3D<value optimized out>) at =
/usr/src/sys/net/if_ethersubr.c:646
#19 0xffffffff809f44e2 in netisr_dispatch_src (proto=3D<value optimized =
out>, source=3D<value optimized out>, m=3D0x0) at =
/usr/src/sys/net/netisr.c:972
#20 0xffffffff804d45db in em_rxeof (count=3D99) at =
/usr/src/sys/dev/e1000/if_em.c:4532
#21 0xffffffff804d3d3c in em_handle_que (context=3D0xfffffe0000a4e000, =
pending=3D<value optimized out>) at /usr/src/sys/dev/e1000/if_em.c:1534
#22 0xffffffff80971475 in taskqueue_run_locked =
(queue=3D0xfffff80002ba4d00) at /usr/src/sys/kern/subr_taskqueue.c:342
#23 0xffffffff80971f08 in taskqueue_thread_loop (arg=3D<value optimized =
out>) at /usr/src/sys/kern/subr_taskqueue.c:563
#24 0xffffffff808f8b6a in fork_exit (callout=3D0xffffffff80971e60 =
<taskqueue_thread_loop>, arg=3D0xfffffe0000a50738, =
frame=3D0xfffffe011a565ac0) at /usr/src/sys/kern/kern_fork.c:996
#25 0xffffffff80d0acfe in fork_trampoline () at =
/usr/src/sys/amd64/amd64/exception.S:606
#26 0x0000000000000000 in ?? ()
Current language:  auto; currently minimal

I use a firewall, only one pipe:
00400    161854      8289970 fwd X.X.X.X,3128 tcp from table(1) to any =
dst-port 80
00401    199967     10465560 pipe tablearg ip from any to table(1)
00401    187811     10188461 pipe tablearg ip from table(2) to any
${fwcmd} pipe 1 config bw 256Kbit/s mask dst-ip 0xffffffff
${fwcmd} pipe 2 config bw 256Kbit/s mask src-ip 0xffffffff

Then I tried to recompile kernel without netgraph. Now I have GENERIC + =
only:
options IPFIREWALL
options DUMMYNET

Few days ago it rebooted again:
kgdb kernel.debug /var/crash/vmcore.1


root@nas3:/usr/obj/usr/src/sys/nas # kgdb kernel.debug =
/var/crash/vmcore.last
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:
panic: page fault
cpuid =3D 0
KDB: stack backtrace:
#0 0xffffffff80963e70 at kdb_backtrace+0x60
#1 0xffffffff80928f95 at panic+0x155
#2 0xffffffff80d3840f at trap_fatal+0x38f
#3 0xffffffff80d38728 at trap_pfault+0x308
#4 0xffffffff80d37d8a at trap+0x47a
#5 0xffffffff80d1dc72 at calltrap+0x8
#6 0xffffffff809f5352 at netisr_dispatch_src+0x62
#7 0xffffffff80b1433c at dummynet_send+0x10c
#8 0xffffffff80b13f54 at dummynet_task+0x2c4
#9 0xffffffff809722e5 at taskqueue_run_locked+0xe5
#10 0xffffffff80972d78 at taskqueue_thread_loop+0xa8
#11 0xffffffff808f99da at fork_exit+0x9a
#12 0xffffffff80d1e1ae at fork_trampoline+0xe
Uptime: 4d21h21m20s
Dumping 555 out of 4044 =
MB:..3%..12%..21%..32%..41%..52%..61%..72%..81%..93%

Reading symbols from /boot/kernel/coretemp.ko.symbols...done.
Loaded symbols for /boot/kernel/coretemp.ko.symbols
Reading symbols from /boot/kernel/netgraph.ko.symbols...done.
Loaded symbols for /boot/kernel/netgraph.ko.symbols
Reading symbols from /boot/kernel/ng_ipfw.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_ipfw.ko.symbols
Reading symbols from /boot/kernel/ng_car.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_car.ko.symbols
Reading symbols from /boot/kernel/ums.ko.symbols...done.
Loaded symbols for /boot/kernel/ums.ko.symbols
Reading symbols from /boot/kernel/ng_socket.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_socket.ko.symbols
Reading symbols from /boot/kernel/ng_mppc.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_mppc.ko.symbols
Reading symbols from /boot/kernel/rc4.ko.symbols...done.
Loaded symbols for /boot/kernel/rc4.ko.symbols
Reading symbols from /boot/kernel/ng_ether.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_ether.ko.symbols
Reading symbols from /boot/kernel/ng_pppoe.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_pppoe.ko.symbols
Reading symbols from /boot/kernel/ng_tee.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_tee.ko.symbols
Reading symbols from /boot/kernel/ng_pptpgre.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_pptpgre.ko.symbols
Reading symbols from /boot/kernel/ng_ksocket.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_ksocket.ko.symbols
Reading symbols from /boot/kernel/ng_iface.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_iface.ko.symbols
Reading symbols from /boot/kernel/ng_ppp.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_ppp.ko.symbols
Reading symbols from /boot/kernel/ng_netflow.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_netflow.ko.symbols
Reading symbols from /boot/kernel/ng_tcpmss.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_tcpmss.ko.symbols
Reading symbols from /boot/kernel/ng_bpf.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_bpf.ko.symbols
Reading symbols from /boot/kernel/zfs.ko.symbols...done.
Loaded symbols for /boot/kernel/zfs.ko.symbols
Reading symbols from /boot/kernel/opensolaris.ko.symbols...done.
Loaded symbols for /boot/kernel/opensolaris.ko.symbols
Reading symbols from /boot/kernel/ng_vjc.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_vjc.ko.symbols
#0  doadump (textdump=3D<value optimized out>) at pcpu.h:219
219        __asm("movq %%gs:%1,%0" : "=3Dr" (td)
(kgdb) bt
#0  doadump (textdump=3D<value optimized out>) at pcpu.h:219
#1  0xffffffff80928c12 in kern_reboot (howto=3D260) at =
/usr/src/sys/kern/kern_shutdown.c:452
#2  0xffffffff80928fd4 in panic (fmt=3D<value optimized out>) at =
/usr/src/sys/kern/kern_shutdown.c:759
#3  0xffffffff80d3840f in trap_fatal (frame=3D<value optimized out>, =
eva=3D<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:865
#4  0xffffffff80d38728 in trap_pfault (frame=3D0xfffffe011e99c800, =
usermode=3D<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:676
#5  0xffffffff80d37d8a in trap (frame=3D0xfffffe011e99c800) at =
/usr/src/sys/amd64/amd64/trap.c:440
#6  0xffffffff80d1dc72 in calltrap () at =
/usr/src/sys/amd64/amd64/exception.S:232
#7  0xffffffff80a5627d in ip_input (m=3D0xfffff8004b041400) at =
/usr/src/sys/netinet/ip_input.c:594
#8  0xffffffff809f5352 in netisr_dispatch_src (proto=3D<value optimized =
out>, source=3D<value optimized out>, m=3D0x40000000c1)
    at /usr/src/sys/net/netisr.c:972
#9  0xffffffff80b1433c in dummynet_send (m=3D<value optimized out>) at =
/usr/src/sys/netpfil/ipfw/ip_dn_io.c:665
#10 0xffffffff80b13f54 in dummynet_task (context=3D<value optimized =
out>, pending=3D<value optimized out>)
    at /usr/src/sys/netpfil/ipfw/ip_dn_io.c:625
#11 0xffffffff809722e5 in taskqueue_run_locked =
(queue=3D0xfffff800193b2a00) at /usr/src/sys/kern/subr_taskqueue.c:342
#12 0xffffffff80972d78 in taskqueue_thread_loop (arg=3D<value optimized =
out>) at /usr/src/sys/kern/subr_taskqueue.c:563
#13 0xffffffff808f99da in fork_exit (callout=3D0xffffffff80972cd0 =
<taskqueue_thread_loop>, arg=3D0xffffffff815e6800,
    frame=3D0xfffffe011e99cac0) at /usr/src/sys/kern/kern_fork.c:996
#14 0xffffffff80d1e1ae in fork_trampoline () at =
/usr/src/sys/amd64/amd64/exception.S:606
#15 0x0000000000000000 in ?? ()
Current language:  auto; currently minimal[/CODE]

I have a suspicion of a dummynet module.

root@nas:/var/crash # sysctl -a | grep dummynet[/CMD]
net.inet.ip.dummynet.hash_size: 64
net.inet.ip.dummynet.pipe_slot_limit: 100
net.inet.ip.dummynet.pipe_byte_limit: 1048576
net.inet.ip.dummynet.io_fast: 0
net.inet.ip.dummynet.debug: 0
net.inet.ip.dummynet.red_lookup_depth: 256
net.inet.ip.dummynet.red_avg_pkt_size: 512
net.inet.ip.dummynet.red_max_pkt_size: 1500
net.inet.ip.dummynet.tick_delta: 0
net.inet.ip.dummynet.tick_delta_sum: -233
net.inet.ip.dummynet.tick_adjustment: 5593
net.inet.ip.dummynet.tick_diff: -4366
net.inet.ip.dummynet.tick_lost: 0
net.inet.ip.dummynet.expire: 1
net.inet.ip.dummynet.expire_cycle: 0
net.inet.ip.dummynet.schk_count: 60
net.inet.ip.dummynet.si_count: 0
net.inet.ip.dummynet.fsk_count: 30
net.inet.ip.dummynet.queue_count: 0
net.inet.ip.dummynet.io_pkt: 1038380
net.inet.ip.dummynet.io_pkt_fast: 0
net.inet.ip.dummynet.io_pkt_drop: 66254

I will try:
root@nas:/var/crash # sysctl -w net.inet.ip.dummynet.io_fast=3D1
May be I mistaked and something doing wrong and problem anywhere else?
Thanks






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