Date: Fri, 25 May 2007 16:12:42 -0500 From: "Roger Miranda" <rmiranda@digitalrelay.ca> To: freebsd-drivers@freebsd.org Subject: LOR on e1000 Message-ID: <200705251612.42487.rmiranda@digitalrelay.ca>
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Not to sure if this is the right place to post this. We have posted on the freebsd-stable mailing list, but decided this might b= e a=20 driver issue. We have a machine running freebsd 6.2 with if_bridge just doing proxy=20 interception. The problem is the machine goes into to a dead lock with my= =20 tcp connection (not so much a heavy load). We can only recreate the dead=20 lock with about 25 or more PCs behind our system. Here is a copy of the LOR: =2D------------------------------------------------------------------------= =2D--------------------------------------- lock order reversal: 1st 0xc06e0820 polling (polling) @ /usr/src/sys/kern/kern_poll.c:422 2nd 0xc473070c if_bridge (if_bridge) @ /usr/src/sys/net/if_bridge.c:1976 KDB: stack backtrace: witness_checkorder(c473070c,9,c068bfbc,7b8) at witness_checkorder+0x55c _mtx_lock_flags(c473070c,0,c068bfbc,7b8,c473070c,...) at _mtx_lock_flags+0x= 41 bridge_input(c43d9000,c4740000,c43a828c,c43a8000,c4740000,...) at=20 bridge_input+0x80 ether_input(c43d9000,c4740000,c43a828c,0,c0675f3c,...) at ether_input+0x122 e1000_rxeof(d43f2cbc,c0524e5d,d43f2ca8,1,5,...) at e1000_rxeof+0x19b e1000_poll(c43d9000,0,5) at e1000_poll+0x46 netisr_poll(0) at netisr_poll+0x70 swi_net(0,c4315438,c4323a80,c050a484,c4322648,...) at swi_net+0xb0 ithread_loop(c430f700,d43f2d38,c430f700,c050a484,0,...) at ithread_loop+0x1= de fork_exit(c050a484,c430f700,d43f2d38) at fork_exit+0x7d fork_trampoline() at fork_trampoline+0x8 =2D-- trap 0x1, eip =3D 0, esp =3D 0xd43f2d6c, ebp =3D 0 --- softdep_waitidle: Failed to flush worklist for 0xc44ffcf8 =2D------------------------------------------------------------------------= =2D--------------------------------------- here is the pciconf output for the network intel cards: =2D------------------------------------------------------------------------= =2D--------------------------------------- em0@pci1:1:0:=A0=A0=A0class=3D0x020000 card=3D0x10758086 chip=3D0x10758086 = rev=3D0x00=20 hdr=3D0x00 =A0 =A0 class =A0 =A0=3D network =A0 =A0 subclass =3D ethernet em1@pci3:10:0:=A0=A0class=3D0x020000 card=3D0x10768086 chip=3D0x10768086 re= v=3D0x00=20 hdr=3D0x00 =A0 =A0 class =A0 =A0=3D network =A0 =A0 subclass =3D ethernet =2D------------------------------------------------------------------------= =2D--------------------------------------- Any help will be really appreciated. We have upgrade the Intel drivers to= =20 version (em-6.3.9). Roger
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