Date: Mon, 6 Sep 2004 02:32:09 -0700 (PDT) From: Michael Haro <mharo@FreeBSD.org> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/71422: LOR in sys/net/bpf Message-ID: <200409060932.i869W9WD029487@burrito.bitsurf.net> Resent-Message-ID: <200409060940.i869eOWR085731@freefall.freebsd.org>
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>Number: 71422 >Category: kern >Synopsis: LOR in sys/net/bpf >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Sep 06 09:40:24 GMT 2004 >Closed-Date: >Last-Modified: >Originator: Michael Haro >Release: FreeBSD 5.3-BETA3 i386 >Organization: >Environment: System: FreeBSD ****.****.ucdavis.edu 5.3-BETA3 FreeBSD 5.3-BETA3 #0: Sat Sep 4 16:43:17 PDT 2004 root@****.****.ucdavis.edu:/usr/obj/usr/src/sys/GENERIC >Description: When I boot my 5.3-BETA3 (RELENG_5 as of yesterday) system and start kismet dmesg shows the following: lock order reversal 1st 0xc1701ad8 bpf interface lock (bpf interface lock) @ /usr/src/sys/net/bpf.c:1273 2nd 0xc191ab64 bpf0 (bpf cdev lock) @ /usr/src/sys/net/bpf.c:1277 KDB: stack backtrace: kdb_backtrace(0,ffffffff,c08bddc8,c08bd558,c084c8bc) at kdb_backtrace+0x29 witness_checkorder(c191ab64,9,c07f9506,4fd) at witness_checkorder+0x544 _mtx_lock_flags(c191ab64,0,c07f9506,4fd,c16d0200) at _mtx_lock_flags+0x5b bpf_mtap2(c1701ac0,c1713020,10,c16d0200) at bpf_mtap2+0x8c wi_rx_intr(c1711000) at wi_rx_intr+0x432 wi_intr(c1711000) at wi_intr+0x143 pccard_intr(c1705e00,c1701c00,cbd0cd1c,c05ed790,c15f4440) at pccard_intr+0x60 cbb_func_intr(c15f4440) at cbb_func_intr+0x45 ithread_loop(c150c400,cbd0cd48,c150c400,c05ed66c,0) at ithread_loop+0x124 fork_exit(c05ed66c,c150c400,cbd0cd48) at fork_exit+0xa4 fork_trampoline() at fork_trampoline+0x8 --- trap 0x1, eip = 0, esp = 0xcbd0cd7c, ebp = 0 --- I've not done anything special with any tunable variables or anything. Let me know if you'd like more information as I'm not really sure what to report. >How-To-Repeat: If I reboot and start kismet it happens again. >Fix: Not sure, but willing to test patches. >Release-Note: >Audit-Trail: >Unformatted:
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