[Bug 241131] Panic: Assertion in_epoch(net_epoch_preempt) failed

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=241131

            Bug ID: 241131
           Summary: Panic: Assertion in_epoch(net_epoch_preempt) failed
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: iz-rpi03 at hs-karlsruhe.de

After upgrading from r352935 to base r353304 the kernel panics after a few
minutes.

# panic: Assertion in_epoch(net_epoch_prempt) failed at
/usr/src/sys/netinet/igmp.c:3304
cpuid = 0
time = 1570538447
KDB: stack backtrace:
db_trace_self() at db_trace_self_wrapper+0x28
...
db_trace_self_wrapper() at vpanic+0x18c
...
vpanic at panic+0x44
...
panic() at igmp_fasttimo+0xadc
...
igmp_fasttimo() at pffasttimo+0x30
...
pffasttimo() at softclock_call_cc+0x110
...
softclock_call_cc() at softclock+0x84
...
softclock() at ithread_loop+0x1f4
...
ithread_loop() at fork_exit+0x7c
...
fork_exit() at fork_trampoline+0x10
...
KDB: enter: Panic
[ thread pid 12 tid 100016 ]
Stopped at      0
db> 

Regards, Ralf

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