Date: Wed, 14 Dec 2011 22:37:51 -0800 From: Vijay Singh <vijju.singh@gmail.com> To: freebsd-net@freebsd.org Subject: LOR in FreeBSD 8.1 w/ IPv6 Message-ID: <CALCNsJQDTJf16yoAEbXBm6XUZCQENxLd29e_j_9yTdyrPzXnSA@mail.gmail.com>
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Hi, the following LOR is reported on my system: f6070c-01% lock order reversal: 1st 0xffffff00043c0c18 e5a:rx(0) (e5a:rx(0)) @ sys/dev/e1000/if_em.c:1607 2nd 0xffffffff80f10780 in6_multi_mtx (in6_multi_mtx) @ sys/netinet6/in6_var.h:734 KDB: stack backtrace: kdb_backtrace() at kdb_backtrace+0x3e witness_releaseok() at witness_releaseok+0x1934 witness_checkorder() at witness_checkorder+0xafc _mtx_lock_flags() at _mtx_lock_flags+0xef icmp6_input() at icmp6_input+0x15ed icmp6_input() at icmp6_input+0x292 ip6_input() at ip6_input+0x1156 netisr_dispatch_src() at netisr_dispatch_src+0x168 netisr_dispatch() at netisr_dispatch+0x20 ether_demux() at ether_demux+0x253 ether_ipfw_chk() at ether_ipfw_chk+0xb66 ether_ipfw_chk() at ether_ipfw_chk+0xbbd netisr_dispatch_src() at netisr_dispatch_src+0x168 netisr_dispatch() at netisr_dispatch+0x20 ether_ipfw_chk() at ether_ipfw_chk+0xc2d busdma_map_sg_vec() at busdma_map_sg_vec+0xa611 busdma_map_sg_vec() at busdma_map_sg_vec+0x2f58 taskqueue_unblock() at taskqueue_unblock+0x235 taskqueue_thread_loop() at taskqueue_thread_loop+0x73 fork_exit() at fork_exit+0x166 fork_trampoline() at fork_trampoline+0xe --- trap 0, rip = 0, rsp = 0xffffff8062691d30, rbp = 0 --- Is it known? -vijay
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