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FreeBSD lock order reversal (LOR) #56

ID 56
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LOR
lock order reversal
 1st 0x... dont_sleep_in_callout (dont_sleep_in_callout) @ kern/kern_timeout.c:257
 2nd 0x... ipf fragment rwlock (ipf fragment rwlock) @ contrib/ipfilter/netinet/ip_frag.c:529
		
KDB: stack backtrace:
kdb_backtrace()
witness_checkorder()
_sx_xlock()
ipfr_fragexpire()
ipfr_slowtimer()
ithread_loop()
fork_exit()
fork_trampoline()
		
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