Date: Wed, 03 Aug 2005 18:43:40 +0200 From: Gordon Bergling <gbergling@0xfce3.net> To: freebsd-current@freebsd.org Subject: [LOR] bpf.c:403 and if_fxp.c:2388 Message-ID: <42F0F43C.2040902@0xfce3.net>
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Hi, I am gettings this LOR while using tcpdump on /dev/fxp0. I am found a similar looking entry at the LOR database, but the Line Numbers are different and the stacktrace is different. So I think it should be posted. (?) lock order reversal 1st 0xc07380a0 bpf global lock (bpf global lock) @ /usr/src/sys/net/bpf.c:403 2nd 0xc1604018 fxp0 (network driver) @ /usr/src/sys/dev/fxp/if_fxp.c:2388 KDB: stack backtrace: kdb_backtrace(0,ffffffff,c06fa8d8,c06f9730,c06c0b24) at kdb_backtrace+0x29 witness_checkorder(c1604018,9,c06776a8,954) at witness_checkorder+0x564 _mtx_lock_flags(c1604018,0,c06776a8,954) at _mtx_lock_flags+0x5b fxp_ioctl(c1646800,80206910,d1e729e0,1,c0684a3d) at fxp_ioctl+0x4a ifpromisc(c1646800,0) at ifpromisc+0xc4 bpf_detachd(c2955600) at bpf_detachd+0xa8 bpfclose(c294fa00,3,2000,c1bd9900,c06e98c0) at bpfclose+0x83 devfs_close(d1e72aa4) at devfs_close+0x2f1 VOP_CLOSE_APV(c06b9640,d1e72aa4) at VOP_CLOSE_APV+0x7e vn_close(c210cbb0,3,c2acab80,c1bd9900,c0682492) at vn_close+0x8b vn_closefile(c1786d38,c1bd9900,d1e72b5c,c04d8470,c1786d38) at vn_closefile+0xca devfs_close_f(c1786d38,c1bd9900) at devfs_close_f+0xf fdrop_locked(c1786d38,c1bd9900,c1533394,0,c0682492) at fdrop_locked+0x88 fdrop(c1786d38,c1bd9900,d1e72ba8,c0514bd0,c0682492) at fdrop+0x24 closef(c1786d38,c1bd9900) at closef+0x35f fdfree(c1bd9900,c1bd8d94,0,c068902a,6ac) at fdfree+0x473 exit1(c1bd9900,100,d1e72d30,c064eb4f,c1bd9900) at exit1+0x3f6 exit1(c1bd9900,d1e72d04,1,9,296) at exit1 syscall(3b,3b,3b,809f45a,bfbfe8dc) at syscall+0x22f Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (1, FreeBSD ELF32, sys_exit), eip = 0x28237383, esp = 0xbfbfe83c, ebp = 0xbfbfe858 --- Information about the notebook can be found at http://generic.0xfce3.net/laptop/ regards, Gordon
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