Date: Fri, 27 Jan 2006 04:22:03 -0500 From: ben <ben@desync.com> To: freebsd-current@freebsd.org Subject: em, polling, carp LOR Message-ID: <70316A00-62D2-4C36-BCFF-8080CCDCCDA7@desync.com>
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Please excuse if this is already known. It used to work. lock order reversal: 1st 0xc4be31a4 em1 (network driver) @ /usr/src/sys/dev/em/if_em.c:1070 2nd 0xc50d41d0 carp_if (carp_if) @ /usr/src/sys/netinet/ip_carp.c:1251 KDB: stack backtrace: witness_checkorder(c50d41d0,9,c08b29b5,4e3) at witness_checkorder+0x56b _mtx_lock_flags(c50d41d0,0,c08b29b5,4e3,800) at _mtx_lock_flags+0x50 carp_forus(c50d41c0,c50c5802,0,1,5dc) at carp_forus+0x4b ether_demux(c4c1d800,c5090800,c4be3000,83,c4c23820) at ether_demux+0x1f7 ether_input(c4c1d800,c5090800,0,e35d6c70,c0698a28) at ether_input+0x15b em_process_receive_interrupts(1,1,5,0,e35d6cd4) at em_process_receive_interrupts+0x2d3 em_poll(c4c1d800,0,5) at em_poll+0x79 netisr_poll(0,c4b3c980,c4b3ee00,0,e35d6d0c) at netisr_poll+0x70 swi_net(0,c4b3ee38,c4aefb60,c0660d38,c4aee450) at swi_net+0x2d ithread_loop(c4ab5870,e35d6d38,c4ab5870,c0660d38,0) at ithread_loop +0x1eb fork_exit(c0660d38,c4ab5870,e35d6d38) at fork_exit+0x80 fork_trampoline() at fork_trampoline+0x8 --- trap 0x1, eip = 0, esp = 0xe35d6d6c, ebp = 0 --- Thanks, bw.
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