[Bug 282605] panic: tcp_do_segment: sent too much

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=282605

            Bug ID: 282605
           Summary: panic: tcp_do_segment: sent too much
           Product: Base System
           Version: 15.0-CURRENT
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: ddaniel@nvidia.com

Sending stress TCP with offloaded NAT-T configuration 

panic: tcp_do_segment: sent too much

BT
#0  __curthread () at /usr/kernel_git/sys/amd64/include/pcpu_aux.h:57
#1  doadump (textdump=textdump@entry=1) at
/usr/kernel_git/sys/kern/kern_shutdown.c:404
#2  0xffffffff80b3b7a0 in kern_reboot (howto=260) at
/usr/kernel_git/sys/kern/kern_shutdown.c:524
#3  0xffffffff80b3bcd7 in vpanic (fmt=0xffffffff81172d6e "%s: sent too much",
ap=ap@entry=0xfffffe010a82db20) at /usr/kernel_git/sys/kern/kern_shutdown.c:979
#4  0xffffffff80b3bb03 in panic (fmt=<unavailable>) at
/usr/kernel_git/sys/kern/kern_shutdown.c:892
#5  0xffffffff80d34372 in tcp_do_segment (tp=0xfffff803402baa80,
tp@entry=<error reading variable: value is not available>, m=<optimized out>, 
    m@entry=<error reading variable: value is not available>,
th=0xfffff802fd295e84, th@entry=<error reading variable: value is not
available>, drop_hdrlen=64, 
    drop_hdrlen@entry=<error reading variable: value is not available>, tlen=0,
tlen@entry=<error reading variable: value is not available>,
iptos=<unavailable>, 
    iptos@entry=<error reading variable: value is not available>) at
/usr/kernel_git/sys/netinet/tcp_input.c:1548
#6  0xffffffff80d30d98 in tcp_input_with_port (mp=<optimized out>,
offp=<optimized out>, proto=<optimized out>, port=port@entry=0) at
/usr/kernel_git/sys/netinet/tcp_input.c:1158
#7  0xffffffff80d31a5b in tcp_input (mp=<unavailable>, offp=<unavailable>,
proto=<unavailable>) at /usr/kernel_git/sys/netinet/tcp_input.c:1502
#8  0xffffffff80d1e3af in ip_input (m=0x0, m@entry=<error reading variable:
value is not available>) at /usr/kernel_git/sys/netinet/ip_input.c:857
#9  0xffffffff80c98b7b in netisr_process_workstream_proto
(nwsp=0xffffffff823c0a00, proto=1) at /usr/kernel_git/sys/net/netisr.c:927
#10 swi_net (arg=0xffffffff823c0a00) at /usr/kernel_git/sys/net/netisr.c:974
#11 0xffffffff80af3b56 in intr_event_execute_handlers (ie=0xfffff800035ee600,
p=<optimized out>) at /usr/kernel_git/sys/kern/kern_intr.c:1183
#12 ithread_execute_handlers (ie=0xfffff800035ee600, p=<optimized out>) at
/usr/kernel_git/sys/kern/kern_intr.c:1196
#13 ithread_loop (arg=arg@entry=0xfffff800033cdf60) at
/usr/kernel_git/sys/kern/kern_intr.c:1289
#14 0xffffffff80aeff52 in fork_exit (callout=0xffffffff80af38f0 <ithread_loop>,
arg=0xfffff800033cdf60, frame=0xfffffe010a82df40) at
/usr/kernel_git/sys/kern/kern_fork.c:1151
#15 <signal handler called>

SHA ID of the kernel:
2ce493e1693b55a330079ac5fce8beb66e26ddeb

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