https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240106Ryan Moeller <
[hidden email]> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |
[hidden email]
Status|New |Open
--- Comment #4 from Ryan Moeller <
[hidden email]> ---
When I followed the reproduction steps described in the linked threads with a
debug kernel I hit the following assert:
panic: m_dup: bogus m_pkthdr.len
cpuid = 1
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe2eca39e700
vpanic() at vpanic+0x177/frame 0xfffffe2eca39e760
doadump() at doadump/frame 0xfffffe2eca39e7e0
m_dup() at m_dup+0x376/frame 0xfffffe2eca39e860
bridge_broadcast() at bridge_broadcast+0x1bf/frame 0xfffffe2eca39e8c0
bridge_forward() at bridge_forward+0x222/frame 0xfffffe2eca39e920
bridge_input() at bridge_input+0x3d5/frame 0xfffffe2eca39e990
ether_nh_input() at ether_nh_input+0x2a6/frame 0xfffffe2eca39e9e0
netisr_dispatch_src() at netisr_dispatch_src+0xa2/frame 0xfffffe2eca39ea40
ether_input() at ether_input+0x8f/frame 0xfffffe2eca39ea80
epair_nh_sintr() at epair_nh_sintr+0x1a/frame 0xfffffe2eca39eaa0
swi_net() at swi_net+0x1b9/frame 0xfffffe2eca39eb20
intr_event_execute_handlers() at intr_event_execute_handlers+0x99/frame
0xfffffe2eca39eb60
ithread_loop() at ithread_loop+0xb7/frame 0xfffffe2eca39ebb0
fork_exit() at fork_exit+0x84/frame 0xfffffe2eca39ebf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe2eca39ebf0
— trap 0, rip = 0, rsp = 0, rbp = 0 —
The offending KASSERT is still there:
/* Check correct total mbuf length */
KASSERT((remain > 0 && m != NULL) || (remain == 0 && m ==
NULL),
("%s: bogus m_pkthdr.len", __func__));
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