From owner-freebsd-wireless@FreeBSD.ORG Tue Jan 28 23:06:41 2014 Return-Path: Delivered-To: freebsd-wireless@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 8B8C16C0; Tue, 28 Jan 2014 23:06:41 +0000 (UTC) Received: from mail-qa0-x230.google.com (mail-qa0-x230.google.com [IPv6:2607:f8b0:400d:c00::230]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 299C61380; Tue, 28 Jan 2014 23:06:41 +0000 (UTC) Received: by mail-qa0-f48.google.com with SMTP id f11so1451679qae.35 for ; Tue, 28 Jan 2014 15:06:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=IA+nev6qh+DzHXIUONU6GBEGhI1dWXw/W5FqVtztEUo=; b=pMUzI9JWDr8Uc+LGqyc+OpmPHvwNOc2rgW7/hWWCZisqsAqvW+8j622suu0rSr4qO9 BLhrBX9VJXM0PYbkEx8dC38DueYNRqm09XihMoXgpR0TAGtR+X2Pe56bXei44CyXMN6V 9uNWtnFEZ+1ucvP9LifQ4+AvUCU5+CdBeXwOBQGzg9sxAtiKeGb641SvoveTbjFdBbR1 PKMyCp94xu+DIWLkgt8pAGMpn/uzsJzr0s2ZHGUm0Ms+ma3e740d6pKHyqBAZLkCOcS+ GAyhEq5RJPvBWHaOespfF++z2fWkbQuZGEJlGl9ub/8oyL5F3UtlcaSPlZS9NaZd9ltz neAQ== MIME-Version: 1.0 X-Received: by 10.140.30.230 with SMTP id d93mr6520037qgd.51.1390950399741; Tue, 28 Jan 2014 15:06:39 -0800 (PST) Received: by 10.140.27.151 with HTTP; Tue, 28 Jan 2014 15:06:39 -0800 (PST) In-Reply-To: References: Date: Tue, 28 Jan 2014 21:06:39 -0200 Message-ID: Subject: Re: FreeBSD 10.0: hostapd crash with Ralink 3070 From: Pedro Flynn To: Adrian Chadd Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.17 Cc: "freebsd-wireless@freebsd.org" X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Jan 2014 23:06:41 -0000 Just to bring to our attention frame 8: (kgdb) frame 8 #8 0xffffffff81a198bc in run_update_beacon (vap=0xfffff8000e8dd000, item=2) at /usr/src/sys/modules/usb/run/../../../dev/usb/wlan/if_run.c:3974 3974 ieee80211_beacon_update(vap->iv_bss, &rvp->bo, rvp->beacon_mbuf, mcast); Current language: auto; currently minimal (kgdb) print run_update_beacon $23 = {void (struct ieee80211vap *, int)} 0xffffffff81a19750 (kgdb) thanks, pflynn On Tue, Jan 28, 2014 at 9:04 PM, Adrian Chadd wrote: > Right, frame 8 (the run beacon update) is passing a NULL mbuf into > net80211. Why's it doing that. > > > > -a > > > On 28 January 2014 15:02, Pedro Flynn wrote: > > Here we go (this output is not beautiful...). Please, let me know if I > > missed something or if I did something wrong: > > > > bt output: > > > > #0 doadump (textdump=) at pcpu.h:219 > > #1 0xffffffff808af530 in kern_reboot (howto=260) > > at /usr/src/sys/kern/kern_shutdown.c:447 > > #2 0xffffffff808af8f4 in panic (fmt=) > > at /usr/src/sys/kern/kern_shutdown.c:754 > > #3 0xffffffff80c8e692 in trap_fatal (frame=, > > eva=) at /usr/src/sys/amd64/amd64/trap.c:882 > > #4 0xffffffff80c8e969 in trap_pfault (frame=0xfffffe009695f720, > usermode=0) > > at /usr/src/sys/amd64/amd64/trap.c:699 > > #5 0xffffffff80c8e0f6 in trap (frame=0xfffffe009695f720) > > at /usr/src/sys/amd64/amd64/trap.c:463 > > #6 0xffffffff80c75392 in calltrap () > > at /usr/src/sys/amd64/amd64/exception.S:232 > > #7 0xffffffff809b1163 in ieee80211_beacon_update (ni=0xfffffe0000ffc000, > > bo=0xfffff8000e8dd9e8, m=0x0, mcast=0) at atomic.h:161 > > #8 0xffffffff81a198bc in run_update_beacon (vap=0xfffff8000e8dd000, > item=2) > > at /usr/src/sys/modules/usb/run/../../../dev/usb/wlan/if_run.c:3974 > > #9 0xffffffff809b42bd in ieee80211_wme_updateparams_locked ( > > vap=0xfffff8000e8dd000) at ieee80211_var.h:814 > > #10 0xffffffff809b437a in ieee80211_wme_updateparams > > (vap=0xfffff8000e8dd000) > > at /usr/src/sys/net80211/ieee80211_proto.c:1150 > > #11 0xffffffff809b3f43 in ieee80211_wme_initparams (vap= > out>) > > at /usr/src/sys/net80211/ieee80211_proto.c:955 > > #12 0xffffffff809a9aec in ieee80211_sta_join1 () > > at /usr/src/sys/net80211/ieee80211_node.c:741 > > #13 0xffffffff8099047b in hostap_newstate (vap=0xfffff8000e8dd000, > > nstate=, arg=) > > at /usr/src/sys/net80211/ieee80211_hostap.c:274 > > #14 0xffffffff81a1a36a in run_newstate (vap=, > > nstate=IEEE80211_S_RUN, arg=-1) > > at /usr/src/sys/modules/usb/run/../../../dev/usb/wlan/if_run.c:1881 > > #15 0xffffffff809b2edf in ieee80211_newstate_cb (xvap=0xfffff8000e8dd000, > > npending=) > > at /usr/src/sys/net80211/ieee80211_proto.c:1756 > > #16 0xffffffff808f5b66 in taskqueue_run_locked (queue=0xfffff8000e8e4600) > > at /usr/src/sys/kern/subr_taskqueue.c:333 > > #17 0xffffffff808f63e8 in taskqueue_thread_loop (arg= out>) > > at /usr/src/sys/kern/subr_taskqueue.c:535 > > #18 0xffffffff8088198a in fork_exit ( > > callout=0xffffffff808f6340 , > > arg=0xfffffe0000ff60f0, frame=0xfffffe009695fc00) > > at /usr/src/sys/kern/kern_fork.c:995 > > #19 0xffffffff80c758ce in fork_trampoline () > > at /usr/src/sys/amd64/amd64/exception.S:606 > > #20 0x0000000000000000 in ?? () > > > > frame 0 > > #0 doadump (textdump=) at pcpu.h:219 > > 219 pcpu.h: No such file or directory. > > in pcpu.h > > print doadump > > $1 = {int (boolean_t)} 0xffffffff808af6f0 > > > > frame 1: > > #1 0xffffffff808af530 in kern_reboot (howto=260) > > at /usr/src/sys/kern/kern_shutdown.c:447 > > 447 doadump(TRUE); > > print kern_reboot > > print kern_reboot > > $3 = {void (int)} 0xffffffff808aedf0 > > > > frame 2 > > #2 0xffffffff808af8f4 in panic (fmt=) > > at /usr/src/sys/kern/kern_shutdown.c:754 > > 754 kern_reboot(bootopt); > > (kgdb) print panic > > $4 = {void (const char *)} 0xffffffff808af760 > > > > frame 3 > > #3 0xffffffff80c8e692 in trap_fatal (frame=, > > eva=) at /usr/src/sys/amd64/amd64/trap.c:882 > > 882 panic("%s", trap_msg[type]); > > (kgdb) print trap_fatal > > $5 = {void (struct trapframe *, vm_offset_t)} 0xffffffff80c8e2f0 > > > > (kgdb) frame 4 > > #4 0xffffffff80c8e969 in trap_pfault (frame=0xfffffe009695f720, > usermode=0) > > at /usr/src/sys/amd64/amd64/trap.c:699 > > 699 trap_fatal(frame, eva); > > (kgdb) print trap_pfault > > $6 = {int (struct trapframe *, int)} 0xffffffff80c8e6a0 > > (kgdb) frame 5 > > #5 0xffffffff80c8e0f6 in trap (frame=0xfffffe009695f720) > > at /usr/src/sys/amd64/amd64/trap.c:463 > > 463 (void) trap_pfault(frame, FALSE); > > (kgdb) print trap > > $7 = {void (struct trapframe *)} 0xffffffff80c8db10 > > > > frame 6 > > #6 0xffffffff80c75392 in calltrap () > > at /usr/src/sys/amd64/amd64/exception.S:232 > > 232 call trap > > Current language: auto; currently asm > > (kgdb) print calltrap > > $8 = {} 0xffffffff80c7538a > > (kgdb) frame 7 > > #7 0xffffffff809b1163 in ieee80211_beacon_update (ni=0xfffffe0000ffc000, > > bo=0xfffff8000e8dd9e8, m=0x0, mcast=0) at atomic.h:161 > > 161 atomic.h: No such file or directory. > > in atomic.h > > Current language: auto; currently minimal > > (kgdb) print ieee80211_beacon_update > > $9 = {int (struct ieee80211_node *, struct ieee80211_beacon_offsets *, > > struct mbuf *, int)} 0xffffffff809b1090 > > > > frame 8 > > #8 0xffffffff81a198bc in run_update_beacon (vap=0xfffff8000e8dd000, > item=2) > > at /usr/src/sys/modules/usb/run/../../../dev/usb/wlan/if_run.c:3974 > > 3974 ieee80211_beacon_update(vap->iv_bss, &rvp->bo, rvp->beacon_mbuf, > > mcast); > > (kgdb) print run_update_beacon > > $10 = {void (struct ieee80211vap *, > > int)} 0xffffffff81a19750 > > (kgdb) frame 9 > > #9 0xffffffff809b42bd in ieee80211_wme_updateparams_locked ( > > vap=0xfffff8000e8dd000) at ieee80211_var.h:814 > > 814 vap->iv_update_beacon(vap, what); > > (kgdb) print ieee80211_wme_updateparams_locked > > $11 = {void (struct ieee80211vap > > *)} 0xffffffff809b3f90 > > (kgdb) frame 10 > > #10 0xffffffff809b437a in ieee80211_wme_updateparams > > (vap=0xfffff8000e8dd000) > > at /usr/src/sys/net80211/ieee80211_proto.c:1150 > > 1150 ieee80211_wme_updateparams_locked(vap); > > (kgdb) print ieee80211_wme_updateparams > > $12 = {void (struct ieee80211vap > > *)} 0xffffffff809b4320 > > > > frame 11 > > #11 0xffffffff809b3f43 in ieee80211_wme_initparams (vap= > out>) > > at /usr/src/sys/net80211/ieee80211_proto.c:955 > > 955 ieee80211_wme_updateparams(vap); > > (kgdb) print ieee80211_wme_initparams > > $13 = {void (struct ieee80211vap > > *)} 0xffffffff809b3ca0 > > (kgdb) frame 12 > > #12 0xffffffff809a9aec in ieee80211_sta_join1 () > > at /usr/src/sys/net80211/ieee80211_node.c:741 > > 741 ieee80211_wme_initparams(vap); > > (kgdb) print ieee80211_sta_join1 > > $14 = {int (struct ieee80211_node *)} 0xffffffff809a9a10 > > > > (kgdb) frame 13 > > #13 0xffffffff8099047b in hostap_newstate (vap=0xfffff8000e8dd000, > > nstate=, arg=) > > at /usr/src/sys/net80211/ieee80211_hostap.c:274 > > 274 ieee80211_ht_adjust_channel(ic, > > (kgdb) print hostap_newstate > > $15 = {int (struct ieee80211vap *, enum ieee80211_state, > > int)} 0xffffffff80990190 > > frame 14 > > #14 0xffffffff81a1a36a in run_newstate (vap=, > > nstate=IEEE80211_S_RUN, arg=-1) > > at /usr/src/sys/modules/usb/run/../../../dev/usb/wlan/if_run.c:1881 > > 1881 return(rvp->newstate(vap, nstate, arg)); > > (kgdb) print run_newstate > > $16 = {int (struct ieee80211vap *, enum ieee80211_state, > > int)} 0xffffffff81a19b30 > > (kgdb) frame 15 > > #15 0xffffffff809b2edf in ieee80211_newstate_cb (xvap=0xfffff8000e8dd000, > > npending=) > > at /usr/src/sys/net80211/ieee80211_proto.c:1756 > > 1756 rc = vap->iv_newstate(vap, nstate, arg); > > (kgdb) print ieee80211_newstate_cb > > $17 = {void (void *, int)} 0xffffffff809b2d90 > > (kgdb) frame 16 > > #16 0xffffffff808f5b66 in taskqueue_run_locked (queue=0xfffff8000e8e4600) > > at /usr/src/sys/kern/subr_taskqueue.c:333 > > 333 task->ta_func(task->ta_context, pending); > > (kgdb) print taskqueue_run_locked > > $18 = {void (struct taskqueue *)} 0xffffffff808f5a80 > > > frame 17 > > #17 0xffffffff808f63e8 in taskqueue_thread_loop (arg= out>) > > at /usr/src/sys/kern/subr_taskqueue.c:535 > > 535 taskqueue_run_locked(tq); > > (kgdb) print taskqueue_thread_loop > > $19 = {void (void *)} 0xffffffff808f6340 > > (kgdb) frame 18 > > #18 0xffffffff8088198a in fork_exit ( > > callout=0xffffffff808f6340 , > > arg=0xfffffe0000ff60f0, frame=0xfffffe009695fc00) > > at /usr/src/sys/kern/kern_fork.c:995 > > 995 callout(arg, frame); > > (kgdb) print fork_exit > > $20 = {void (void (*)(void *, struct trapframe *), void *, struct > trapframe > > *)} 0xffffffff808818f0 > > (kgdb) frame 19 > > #19 0xffffffff80c758ce in fork_trampoline () > > at /usr/src/sys/amd64/amd64/exception.S:606 > > 606 call fork_exit > > Current language: auto; currently asm > > (kgdb) print fork_trampoline > > $21 = {} 0xffffffff80c758c0 > > > frame 20 > > #20 0x0000000000000000 in ?? () > > > > Thanks, > > > > pflynn > > > > > > On Tue, Jan 28, 2014 at 8:47 PM, Adrian Chadd > wrote: > >> > >> ok, do 'bt', and see what's being passed into ieee80211_beacon_update. > >> Use 'frame X' to switch to frame X, and 'print VARIABLE_NAME' to print > >> out the contents of the given variable name. > >> > >> That mbuf looks like it's NULL, which is odd. > >> > >> Thanks! > >> > >> > >> -a > >> > >> > >> On 28 January 2014 14:45, Pedro Flynn wrote: > >> > OK! This is what I have: > >> > > >> > list * (0xffffffff809b1163) > >> > Undefined command: "". Try "help". > >> > (kgdb) list * (0xffffffff809b1163) > >> > 0xffffffff809b1163 is in ieee80211_beacon_update > >> > (/usr/src/sys/net80211/ieee80211_output.c:3099). > >> > 3094 /* XXX do WME aggressive mode processing? */ > >> > 3095 IEEE80211_UNLOCK(ic); > >> > 3096 return 1; /* just assume length changed */ > >> > 3097 } > >> > 3098 > >> > 3099 wh = mtod(m, struct ieee80211_frame *); > >> > 3100 seqno = ni->ni_txseqs[IEEE80211_NONQOS_TID]++; > >> > 3101 *(uint16_t *)&wh->i_seq[0] = > >> > 3102 htole16(seqno << IEEE80211_SEQ_SEQ_SHIFT); > >> > 3103 M_SEQNO_SET(m, seqno); > >> > Current language: auto; currently minimal > >> > (kgdb) > >> > > >> > > >> > (by the way, I'm building a kernel with debug symbols) > >> > > >> > Thanks, > >> > > >> > pflynn > >> > > >> > > >> > > >> > On Tue, Jan 28, 2014 at 8:34 PM, Adrian Chadd > >> > wrote: > >> >> > >> >> Ok, fire up kgdb > >> >> > >> >> # kgdb /boot/kernel/kernel /var/crash/vmcore.0 > >> >> > >> >> then > >> >> > >> >> (gdb) list * (0xffffffff809b1163) > >> >> > >> >> (.. that's the "instruction pointer" at the time of the panic.) > >> >> > >> >> I bet it's iv_bss. > >> >> > >> >> > >> >> > >> >> -a > >> > > >> > > > > > >