Date: Mon, 19 Apr 2010 12:58:56 +0400 From: Lystopad Olexandr <laa@laa.zp.ua> To: freebsd-stable@freebsd.org Subject: Re: ath0: kernel panic when adhoc mode. Message-ID: <20100419085856.GX2460@cemu.ru> In-Reply-To: <j2m3a142e751004180320o147dfb25nd027e22c7ee18464@mail.gmail.com> References: <20100414103054.GA2460@cemu.ru> <j2m3a142e751004180320o147dfb25nd027e22c7ee18464@mail.gmail.com>
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Hello, Paul B Mahol! On Sun, Apr 18, 2010 at 10:20:26AM +0000 onemda@gmail.com wrote about "Re: ath0: kernel panic when adhoc mode.": > On 4/14/10, Lystopad Olexandr <laa@laa.zp.ua> wrote: > > Hi! > > > > I install 8.0 FreeBSD, upgrade it to yesturday stable. > > I need to create wireless link in adhoc mode. > > Help me to do this. > > > > > > I put a wireless card into this box: > > > > ath0@pci0:3:3:0: class=0x020000 card=0xcc2114b9 chip=0x0013168c > > rev=0x01 hdr=0x00 > > vendor = 'Atheros Communications Inc.' > > device = '802.11a/b/g Wireless Adapter (AR5212)' > > class = network > > subclass = ethernet > > cap 01[44] = powerspec 2 supports D0 D3 current D0 > > > > > > > > when I do: > > # ifconfig wlan0 create wlandev ath0 wlanmode adhoc > > > > server reboot with kernel panic: > > > > Fatal trap 12: page fault while in kernel mode > > cpuid = 1; apic id = 01 > > fault virtual address = 0xffff > > fault code = supervisor read, page not present > > instruction pointer = 0x20:0xc0791612 > > stack pointer = 0x28:0xd2f42ba4 > > frame pointer = 0x28:0xd2f42bac > > code segment = base 0x0, limit 0xfffff, type 0x1b > > = DPL 0, pres 1, def32 1, gran 1 > > processor eflags = interrupt enabled, resume, IOPL = 0 > > current process = 0 (ath0 taskq) > > trap number = 12 > > panic: page fault > > cpuid = 1 > > Uptime: 3m35s > > Physical memory: 439 MB > > Dumping 80 MB: 65 49 33panic: bufwrite: buffer is not busy??? > > cpuid = 1 > > 17 1 > > > > #0 doadump () at pcpu.h:246 > > 246 pcpu.h: No such file or directory. > > in pcpu.h > > (kgdb) #0 doadump () at pcpu.h:246 > > #1 0xc06b3497 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:416 > > #2 0xc06b3789 in panic (fmt=Variable "fmt" is not available. > > ) at /usr/src/sys/kern/kern_shutdown.c:579 > > #3 0xc08b63bc in trap_fatal (frame=0xd2f42b64, eva=65535) > > at /usr/src/sys/i386/i386/trap.c:938 > > #4 0xc08b6620 in trap_pfault (frame=0xd2f42b64, usermode=0, eva=65535) > > at /usr/src/sys/i386/i386/trap.c:851 > > #5 0xc08b6f39 in trap (frame=0xd2f42b64) at > > /usr/src/sys/i386/i386/trap.c:533 > > #6 0xc0899b3b in calltrap () at /usr/src/sys/i386/i386/exception.s:165 > > #7 0xc0791612 in ieee80211_getcapinfo (vap=0xc2d5f000, chan=0xffff) > > at /usr/src/sys/net80211/ieee80211_output.c:1836 > > #8 0xc0793d17 in ieee80211_beacon_construct (m=0xc2edca00, > > frm=0xc2f0516e "", bo=0xc2d5f884, ni=0xc2ceb000) > > at /usr/src/sys/net80211/ieee80211_output.c:2559 > > #9 0xc07946db in ieee80211_beacon_alloc (ni=0xc2ceb000, bo=0xc2d5f884) > > at /usr/src/sys/net80211/ieee80211_output.c:2756 > > #10 0xc050eaea in ath_newstate (vap=0xc2d5f000, nstate=IEEE80211_S_RUN, > > arg=-1) at /usr/src/sys/dev/ath/if_ath.c:2641 > > #11 0xc0798db1 in ieee80211_newstate_cb (xvap=0xc2d5f000, npending=3) > > at /usr/src/sys/net80211/ieee80211_proto.c:1654 > > #12 0xc06ebf92 in taskqueue_run (queue=0xc2a84c80) > > at /usr/src/sys/kern/subr_taskqueue.c:239 > > #13 0xc06ec19d in taskqueue_thread_loop (arg=0xc2ada074) > > at /usr/src/sys/kern/subr_taskqueue.c:360 > > #14 0xc068a331 in fork_exit (callout=0xc06ec0e0 <taskqueue_thread_loop>, > > arg=0xc2ada074, frame=0xd2f42d38) at /usr/src/sys/kern/kern_fork.c:843 > > #15 0xc0899bb0 in fork_trampoline () at > > /usr/src/sys/i386/i386/exception.s:270 > > (kgdb) > > > > This is bug, please report it ASAP. Thanks. Done. http://www.freebsd.org/cgi/query-pr.cgi?pr=145826 -- Olexandr Lystopad
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