I need help to read a backtrace (bt), my pfsense makes kernel panic

erode

Hi everybody how are you? I am having kernel panic in my pfsense, the error it gives is the following:

Panic String: bpf_mcopy

It does it once a week, the hardware I have is the following:

ThinkSystem SR250
RAM: DDR4 16gb ecc
CPU: Intel(R) Xeon(R) E-2224 CPU @ 3.40GHz
Network cards: Broadcom NetXtreme PCIe 1Gb 4-Port RJ45 Ethernet Adapter PCI-E
Emulex VFA5.2 2x10GbE SFP + PCIe Adapter

And coredump is as follows:

amd64
12.2-STABLE
FreeBSD 12.2-STABLE fd0f54f44b5c(RELENG_2_5_0) pfSense

Crash report details:

No PHP errors found.

Filename: /var/crash/info.0
Dump header from device: /dev/ada0p3
  Architecture: amd64
  Architecture Version: 4
  Dump Length: 101376
  Blocksize: 512
  Compression:none
  Dumptime: Tue Feb 8 12:38:47 2022
  Hostname: jd.domain.com.ar
  Magic: FreeBSD Text Dump
  Version String: FreeBSD 12.2-STABLE fd0f54f44b5c(RELENG_2_5_0) pfSense
  Panic String: bpf_mcopy
  Dump Parity: 3354687337
  Bounds: 0
  Dump Status: good

Filename: /var/crash/textdump.tar.0
ddb.txt06000014000014200507207 7067 ustarrootwheeldb:0:kdb.enter.default> run lockinfo
db:1:lockinfo> show locks
No such command; use "help" to list available commands
db:1:lockinfo> show alllocks
No such command; use "help" to list available commands
db:1:lockinfo> show lockedvnods
Locked vnodes
db:0:kdb.enter.default> show pcpu
cpuid = 3
dynamic pcpu = 0xfffffe0080d99380
curthread = 0xfffff80140906000: pid 51869 tid 100576 "openvpn"
curpcb = 0xfffff801409065a0
fpcurthread=0xfffff80140906000:pid 51869 "openvpn"
idlethread = 0xfffff80005617740: tid 100006 "idle: cpu3"
curpmap = 0xfffff802e19a0138
tssp=0xffffffff83717758
commontssp=0xffffffff83717758
rsp0 = 0xfffffe009333dbc0
kcr3 = 0x800000018eb296b5
ucr3 = 0x800000018e96beb5
scr3 = 0x3ae00ef02
gs32p = 0xffffffff8371df70
ldt = 0xffffffff8371dfb0
tss = 0xffffffff8371dfa0
tlb gene=58597308
curvnet = 0xfffff80005090b80
db:0:kdb.enter.default> bt
Tracing pid 51869 tid 100576 td 0xfffff80140906000
kdb_enter() at kdb_enter+0x37/frame 0xfffffe009333cff0
vpanic() at vpanic+0x197/frame 0xfffffe009333d040
panic() at panic+0x43/frame 0xfffffe009333d0a0
bpf_buffer_append_mbuf() at bpf_buffer_append_mbuf+0x64/frame 0xfffffe009333d0d0
catchpacket() at catchpacket+0x4fd/frame 0xfffffe009333d170
bpf_mtap2() at bpf_mtap2+0x1f0/frame 0xfffffe009333d270
ether_vlan_mtap() at ether_vlan_mtap+0xa3/frame 0xfffffe009333d3b0
oce_multiq_transmit() at oce_multiq_transmit+0x112/frame 0xfffffe009333d410
oce_multiq_start() at oce_multiq_start+0x76/frame 0xfffffe009333d440
vlan_transmit() at vlan_transmit+0xda/frame 0xfffffe009333d4b0
ether_output_frame() at ether_output_frame+0xb4/frame 0xfffffe009333d4e0
ether_output() at ether_output+0x676/frame 0xfffffe009333d560
ip_output() at ip_output+0x131c/frame 0xfffffe009333d6a0
ip_forward() at ip_forward+0x366/frame 0xfffffe009333d770
ip_input() at ip_input+0x7db/frame 0xfffffe009333d820
netisr_dispatch_src() at netisr_dispatch_src+0xca/frame 0xfffffe009333d870
tunwrite() at tunwrite+0x31f/frame 0xfffffe009333d8b0
devfs_write_f() at devfs_write_f+0xda/frame 0xfffffe009333d920
dofilewrite() at dofilewrite+0xb0/frame 0xfffffe009333d970
sys_writev() at sys_writev+0x6e/frame 0xfffffe009333d9c0
amd64_syscall() at amd64_syscall+0x387/frame 0xfffffe009333daf0
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe009333daf0
--- syscall (121, FreeBSD ELF64, sys_writev), rip = 0x80088e75a, rsp = 0x7fffffffcb48, rbp = 0x7fffffffcb80 ---

I have two identical computers since I was configuring it in CARP, and in both it does the same thing to me, randomly once a week, at different times. Any idea what it could be? I have more data from the dump, like the ps and the boot log.

From already thank you very much!!

viragomann

@erode
Any reason for not updating to the current version?

erode

@viragomann hi! im in the current version:

2.5.2-RELEASE (amd64)
built on Fri Jul 02 15:33:00 EDT 2021
FreeBSD 12.2-STABLE

The system is on the latest version.

stephenw10

This is a duplicate thread. Please continue here:
https://forum.netgate.com/topic/168212/panic-string-bpf_mcopy/12

Steve