Not sure, I haven't dug into it. It shouldn't be hard to fix though. I think someone just screwed up in defining the structures in the USB drivers and didn't specify alignment. ath(4) got it right because Sam ran it on MIPS/ARM boards.
-adrian On 27 July 2013 20:34, XiaoQI Ge <g...@7axu.com> wrote: > That should be how to solve it? > -- > Regards. > By: XiaoQI Ge; PGP:8B09D5F7 > WWW: https://www.7axu.com/ > > > > 2013/7/27 Adrian Chadd <adr...@freebsd.org>: >> This is known; there's some alignment issue with the radiotap TX/RX >> structures in some of these USB devices. >> >> >> >> -adrain >> >> On 25 July 2013 20:23, XiaoQI Ge <g...@7axu.com> wrote: >>> 我更新到最新的源码(r253662),这次错误信息变成了0xde9f4d34 >>> >>> [root@FreeBSD.ttyu0] ~ # Fatal kernel mode data abort: 'Alignment Fault 1' >>> trapframe: 0xde9f4d34 >>> FSR=00000801, FAR=c284afbb, spsr=00000013 >>> r0 =c284c000, r1 =c284afbb, r2 =c284c210, r3 =0000096c >>> r4 =c284c024, r5 =c05f07c5, r6 =00000014, r7 =c2844800 >>> r8 =c05f07c5, r9 =c284c000, r10=000035cb, r11=de9f4e10 >>> r12=0000002e, ssp=de9f4d80, slr=00000000, pc =c046d20c >>> >>> [ thread pid 0 tid 100053 ] >>> Stopped at ieee80211_radiotap_chan_change+0x90: strh r3, [r1] >>> db> >>> --- >>> Kernel wlan related options >>> device wlan # 802.11 support >>> options IEEE80211_DEBUG # enable debug msgs >>> options IEEE80211_AMPDU_AGE # age frames in AMPDU reorder q's >>> options IEEE80211_SUPPORT_MESH # enable 802.11s draft support >>> device wlan_wep # 802.11 WEP support >>> device wlan_ccmp # 802.11 CCMP support >>> device wlan_tkip # 802.11 TKIP support >>> device wlan_amrr # AMRR transmit rate control algorithm >>> device firmware # firmware assist module >>> device run #Ralink Technology USB IEEE 802.11a/g/n >>> wireless network device >>> device runfw #Firmware Module for Ralink driver >>> >>> --- >>> The compiler command >>> make TARGET_ARCH=armv6 TARGET_CPUTYPE=armv6 KERNCONF=BBB WITH_FDT=yes >>> buildkernel >>> -- >>> Regards. >>> By: XiaoQI Ge; PGP:8B09D5F7 >>> WWW: https://www.7axu.com/ >>> >>> >>> >>> 2013/7/24 XiaoQI Ge <g...@7axu.com>: >>>> How do I debug it? Can provide useful information >>>> >>>> login: root >>>> Jul 24 18:27:31 FreeBSD login: ROOT LOGIN (root) ON ttyu0 >>>> FreeBSD 10.0-CURRENT (BBB) #4 r253585M: Wed Jul 24 17:07:53 CST 2013 >>>> [root@FreeBSD.ttyu0] ~ # ifconfig wlan create wlandev run0 >>>> wlan0: Ethernet address: 10:6f:3f:2b:fd:6d >>>> wlan0 >>>> [root@FreeBSD.ttyu0] ~ # ifconfig wlan0 up >>>> run0: firmware RT2870 ver. 0.236 loaded >>>> Fatal kernel mode data abort: 'Alignment Fault 1' >>>> trapframe: 0xde9e4d5c >>>> FSR=00000801, FAR=c282ffbb, spsr=00000013 >>>> r0 =c2831000, r1 =c282ffbb, r2 =c2831210, r3 =0000096c >>>> r4 =c2831024, r5 =c2831000, r6 =c05d9362, r7 =c2829800 >>>> r8 =00000014, r9 =c08144d8, r10=80001cce, r11=de9e4e10 >>>> r12=0000002e, ssp=de9e4da8, slr=00000000, pc =c045c510 >>>> >>>> [ thread pid 0 tid 100053 ] >>>> Stopped at ieee80211_radiotap_chan_change+0x90: strh r3, [r1] >>>> db> >>>> >>>> >>>> These two places modified: >>>> 2522 } >>>> 2523 >>>> 2524 ant = run_maxrssi_chain(sc, rxwi); >>>> 2525 rssi = rxwi->rssi[ant]; >>>> 2526 nf = run_rssi2dbm(sc, rssi, ant); >>>> 2527 >>>> 2528 m->m_pkthdr.rcvif = ifp; >>>> 2529 m->m_pkthdr.len = m->m_len = len; >>>> 2530 /* >>>> 2531 if (ni != NULL) { >>>> 2532 (void)ieee80211_input(ni, m, rssi, nf); >>>> 2533 ieee80211_free_node(ni); >>>> 2534 } else { >>>> 2535 (void)ieee80211_input_all(ic, m, rssi, nf); >>>> 2536 } >>>> 2537 */ >>>> 2538 /* >>>> 2539 * DAAN: fill-in tap header BEFORE calling ieee80211_input*() so >>>> the >>>> 2540 * user will see the actual data that belongs to THIS packet.. >>>> 2541 */ >>>> 2542 if (__predict_false(ieee80211_radiotap_active(ic))) { >>>> 2543 struct run_rx_radiotap_header *tap = &sc->sc_rxtap; >>>> 2544 >>>> 2545 tap->wr_flags = 0; >>>> 2546 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); >>>> 2547 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); >>>> 2548 tap->wr_antsignal = rssi; >>>> 2549 tap->wr_antenna = ant; >>>> 2550 tap->wr_dbm_antsignal = run_rssi2dbm(sc, rssi, ant); >>>> 2551 tap->wr_rate = 2; /* in case it can't be found below */ >>>> 2552 phy = le16toh(rxwi->phy); >>>> 2553 switch (phy & RT2860_PHY_MODE) { >>>> 2554 case RT2860_PHY_CCK: >>>> 2555 switch ((phy & RT2860_PHY_MCS) & ~RT2860_PHY_SHPRE) { >>>> 2556 case 0: tap->wr_rate = 2; break; >>>> 2557 case 1: tap->wr_rate = 4; break; >>>> 2558 case 2: tap->wr_rate = 11; break; >>>> 2559 case 3: tap->wr_rate = 22; break; >>>> 2560 } >>>> 2561 if (phy & RT2860_PHY_SHPRE) >>>> 2562 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; >>>> 2563 break; >>>> 2564 case RT2860_PHY_OFDM: >>>> 2565 switch (phy & RT2860_PHY_MCS) { >>>> 2566 case 0: tap->wr_rate = 12; break; >>>> 2567 case 1: tap->wr_rate = 18; break; >>>> 2568 case 2: tap->wr_rate = 24; break; >>>> 2569 case 3: tap->wr_rate = 36; break; >>>> 2570 case 4: tap->wr_rate = 48; break; >>>> 2571 case 5: tap->wr_rate = 72; break; >>>> 2572 case 6: tap->wr_rate = 96; break; >>>> 2573 case 7: tap->wr_rate = 108; break; >>>> 2574 } >>>> 2575 break; >>>> 2576 } >>>> 2577 } >>>> 2578 >>>> 2579 if (ni != NULL) { >>>> 2580 (void)ieee80211_input(ni, m, rssi, nf); >>>> 2581 ieee80211_free_node(ni); >>>> 2582 } else { >>>> 2583 (void)ieee80211_input_all(ic, m, rssi, nf); >>>> 2584 } >>>> 2585 >>>> 2586 } >>>> 2587 >>>> 2588 static void >>>> >>>> >>>> Index: sys/vm/vm_map.c >>>> =================================================================== >>>> --- sys/vm/vm_map.c (revision 253514) >>>> +++ sys/vm/vm_map.c (working copy) >>>> @@ -239,8 +239,7 @@ >>>> vm_map_t map; >>>> >>>> map = (vm_map_t)mem; >>>> - map->nentries = 0; >>>> - map->size = 0; >>>> + memset(map, 0, sizeof(*map)); >>>> mtx_init(&map->system_mtx, "vm map (system)", NULL, MTX_DEF | >>>> MTX_DUPOK); >>>> sx_init(&map->lock, "vm map (user)"); >>>> return (0); >>>> >>>> -- >>>> Regards. >>>> By: XiaoQI Ge; PGP:8B09D5F7 >>>> WWW: https://www.7axu.com/ >>>> >>>> >>>> >>>> 2013/7/24 XiaoQI Ge <g...@7axu.com>: >>>>> I manually make up, is compiling the kernel >>>>> -- >>>>> Regards. >>>>> By: XiaoQI Ge; PGP:8B09D5F7 >>>>> WWW: https://www.7axu.com/ >>>>> >>>>> >>>>> >>>>> 2013/7/24 XiaoQI Ge <g...@7axu.com>: >>>>>> patch < /root/if_run_2013_01_19_radiotap_fix_only.diff appears to be >>>>>> invalid >>>>>> >>>>>> ] /usr/src/sys/dev/usb/wlan # patch < >>>>>> /root/if_run_2013_01_19_radiotap_fix_only.diff >>>>>> Hmm... Looks like a unified diff to me... >>>>>> The text leading up to this was: >>>>>> -------------------------- >>>>>> |--- if_run.c.fix1_vnet 2013-06-14 10:12:49.786774072 +0200 >>>>>> |+++ if_run.c.fix2_vnet_plus_radiotap 2013-06-14 10:15:34.890774314 >>>>>> +0200 >>>>>> -------------------------- >>>>>> File to patch: >>>>>> >>>>>> >>>>>> 2013/7/23 Daan Vreeken <d...@vitsch.nl>: >>>>>>> cd /usr/src/sys/dev/usb/wlan >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Regards. >>>>>> By: XiaoQI Ge; PGP:8B09D5F7 >>>>>> WWW: https://www.7axu.com/ >>> _______________________________________________ >>> freebsd-wireless@freebsd.org mailing list >>> http://lists.freebsd.org/mailman/listinfo/freebsd-wireless >>> To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org" _______________________________________________ freebsd-wireless@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"