Date: Fri, 21 May 2004 12:54:24 -0400 From: "Alan B. Clegg" <alan@clegg.com> To: freebsd-mobile@freebsd.org Subject: Lock reversal and wi failure Message-ID: <20040521165424.GC43877@shazam.wetworks.org>
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--rQ2U398070+RC21q Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On a newly CVSup'd and built system, I'm seeing the following: After a few minutes of use (not always the same length of time, nor packets passed), my D-Link DWL-650 stops transmitting. The "associated" light stays on, and a tcpdump of the radiolink continues to show 802.11 packets passing. However, any network traffic above that level is not seen. I'm=20 currently using a Orinoco Silver and have not seen a similar failure. Here's some output.... > name -a FreeBSD skippy.firehouse.net 5.2-CURRENT FreeBSD 5.2-CURRENT #0: Fri May 21= 07:38:41 EDT 2004 root@skippy.firehouse.net:/usr/obj/usr/src/sys/skipp= y i386 > dmesg wi0: <Lucent Technologies WaveLAN/IEEE> at port 0x180-0x1bf irq 11 function= 0 config 1 on pccard1 wi0: [GIANT-LOCKED] wi0: using Lucent Technologies, WaveLAN/IEEE wi0: Lucent Firmware: Station (8.10.1) wi0: Ethernet address: 00:02:2d:30:f3:59 wi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps wi0: promiscuous mode enabled lock order reversal 1st 0xc08a17a0 bpf global lock (bpf global lock) @ /usr/src/sys/net/bpf.c:= 380 2nd 0xc32b4bec wi0 (network driver) @ /usr/src/sys/dev/wi/if_wi.c:1090 Stack backtrace: backtrace(0,ffffffff,c087db38,c087da20,c0813abc) at backtrace+0x12 witness_checkorder(c32b4bec,9,c07b1eb7,442) at witness_checkorder+0x593 _mtx_lock_flags(c32b4bec,0,c07b1eb7,442) at _mtx_lock_flags+0x67 wi_ioctl(c32b4000,80206910,d5172a7c,c07c22b5,d5172aa0) at wi_ioctl+0x42 ifpromisc(c32b4000,0) at ifpromisc+0x92 bpf_detachd(c36cc000) at bpf_detachd+0x26 bpfclose(c3521500,1,2000,c36316e0,c081c080) at bpfclose+0x83 spec_close(d5172b20,d5172b48,c0638dfc,d5172b20,c08590e0) at spec_close+0x2b6 spec_vnoperate(d5172b20) at spec_vnoperate+0x13 vn_close(c361fe38,1,c44b4c00,c36316e0,d5172bb8) at vn_close+0x40 vn_closefile(c32ad330,c36316e0) at vn_closefile+0x1e fdrop_locked(c32ad330,c36316e0,c1608bbc,0,c07b6dca) at fdrop_locked+0x117 fdrop(c32ad330,c36316e0,3,c36316e0,d5172c14) at fdrop+0x24 closef(c32ad330,c36316e0) at closef+0x1db fdfree(c36316e0,c36337f8,c36336e0,0,c363374c) at fdfree+0x2eb exit1(c36316e0,0,d5172d40,c07539b7,c36316e0) at exit1+0x45f exit1(c36316e0,d5172d14,1,3,292) at exit1 syscall(2f,2f,2f,bfbfe9d0,280eb9fa) at syscall+0x217 Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (1), eip =3D 0x2822152f, esp =3D 0xbfbfe7bc, ebp =3D 0xbfbfe7d8= --- wi0: promiscuous mode disabled wi0: promiscuous mode enabled lock order reversal 1st 0xc3e4d560 bpf1 (bpf cdev lock) @ /usr/src/sys/net/bpf.c:1548 2nd 0xc32b4bec wi0 (network driver) @ /usr/src/sys/dev/wi/if_wi.c:1090 Stack backtrace: backtrace(0,ffffffff,c087d138,c087da20,c0813abc) at backtrace+0x12 witness_checkorder(c32b4bec,9,c07b1eb7,442) at witness_checkorder+0x593 _mtx_lock_flags(c32b4bec,0,c07b1eb7,442) at _mtx_lock_flags+0x67 wi_ioctl(c32b4000,80206910,d51d8ab0,c3e4d560,60c) at wi_ioctl+0x42 ifpromisc(c32b4000,0) at ifpromisc+0x92 bpf_detachd(c3e4d500,c3e4d560,0,c07c22b5,60c) at bpf_detachd+0x26 bpf_setdlt(c3e4d500,7f,0,c361fe38,d51d8b88) at bpf_setdlt+0xa4 bpfioctl(c3521500,80044278,d51d8c60,1,c40696e0) at bpfioctl+0x3e9 spec_ioctl(d51d8b88,d51d8c34,c0639897,d51d8b88,c08592a0) at spec_ioctl+0x15a spec_vnoperate(d51d8b88) at spec_vnoperate+0x13 vn_ioctl(c32adf24,80044278,d51d8c60,c44b4c00,c40696e0) at vn_ioctl+0x17f ioctl(c40696e0,d51d8d14,3,1,296) at ioctl+0x37c syscall(2f,2f,2f,7f,817e000) at syscall+0x217 Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (54), eip =3D 0x28223253, esp =3D 0xbfbfe79c, ebp =3D 0xbfbfe7b= 8 --- --=20 We have shared the incommunicable experience of war. We felt, we still feel, the passion of life to its top. In our youths, our hearts were touched by fire. -- Oliver Wendall Holmes --rQ2U398070+RC21q Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFArjRAyJP8xSfQVdsRAsJZAJ9gp4Jb31QKtWkyXynayN2nkPRVFwCfSBhv bQF48Qiw7t3q0lrwKeFi2yM= =Zqhj -----END PGP SIGNATURE----- --rQ2U398070+RC21q--
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