Date: Fri, 11 Oct 2013 08:20:06 -0700 From: Adrian Chadd <adrian@freebsd.org> To: =?ISO-8859-1?Q?Peter_Ankerst=E5l?= <peter@pean.org> Cc: FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: kern/182665: [wlan] Kernel panic when creating second wlandev. Message-ID: <CAJ-Vmo=p15yo2749%2BH3vR5NpgzbWORJnx6dEDYxZHCP_XF0SpA@mail.gmail.com> In-Reply-To: <5257A8AC.40703@pean.org> References: <201310091810.r99IA3mS098467@freefall.freebsd.org> <CAJ-VmomMsq8EnaDgkhvOM2aRagnDKsR6jrt6tsm6hr5d_9kV=g@mail.gmail.com> <193DD662-CB03-412F-A170-AD28BA67C612@pean.org> <CAJ-VmokmDnGy7wMh6AYBpu414tqDBmcuu4f=7qfBJZs7YM7qSA@mail.gmail.com> <5257A8AC.40703@pean.org>
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what's wlan0 setup as? -a On 11 October 2013 00:28, Peter Ankerst=E5l <peter@pean.org> wrote: > Hi! > > Here is a new crash. > > I have wlan0 set up with ath0 as wlandev and then when I run: > > # ifconfig wlan1 create wlanmode hostap wlandev ath1 > > > the machine crashes with this message: > > Oct 11 09:25:00 gw syslogd: kernel boot file is /boot/kernel/kernel > Oct 11 09:25:00 gw kernel: > Oct 11 09:25:00 gw kernel: > Oct 11 09:25:00 gw kernel: Fatal trap 12: page fault while in kernel mode > Oct 11 09:25:00 gw kernel: cpuid =3D 1; apic id =3D 01 > Oct 11 09:25:00 gw kernel: fault virtual address =3D 0x0 > Oct 11 09:25:00 gw kernel: fault code =3D supervisor read, page > not present > Oct 11 09:25:00 gw kernel: instruction pointer =3D 0x20:0xc0800600 > Oct 11 09:25:00 gw kernel: stack pointer =3D 0x28:0xe8d879= e0 > Oct 11 09:25:00 gw kernel: frame pointer =3D 0x28:0xe8d879= e8 > Oct 11 09:25:00 gw kernel: wlan1: Ethernet address: b0:48:7a:d5:fe:a2 > Oct 11 09:25:00 gw kernel: code segment =3D base 0x0, limit 0xfff= ff, > type 0x1b > Oct 11 09:25:00 gw kernel: =3D DPL 0, pres 1, def32 1, gran 1 > Oct 11 09:25:00 gw kernel: processor eflags =3D interrupt enabled, > resume, IOPL =3D 0 > Oct 11 09:25:00 gw kernel: current process =3D 2968 (bsnmpd) > Oct 11 09:25:00 gw kernel: trap number =3D 12 > Oct 11 09:25:00 gw kernel: panic: page fault > Oct 11 09:25:00 gw kernel: cpuid =3D 1 > Oct 11 09:25:00 gw kernel: KDB: stack backtrace: > Oct 11 09:25:00 gw kernel: #0 0xc078bfc2 at kdb_backtrace+0x52 > Oct 11 09:25:00 gw kernel: #1 0xc07567f1 at panic+0x121 > Oct 11 09:25:00 gw kernel: #2 0xc0a4ffb9 at trap_fatal+0x339 > Oct 11 09:25:00 gw kernel: #3 0xc0a5024a at trap_pfault+0x27a > Oct 11 09:25:00 gw kernel: #4 0xc0a4fa46 at trap+0x5a6 > Oct 11 09:25:00 gw kernel: #5 0xc0a3a20c at calltrap+0x6 > Oct 11 09:25:00 gw kernel: #6 0xc083f635 at ieee80211_ioctl_getstainfo+** > 0x55 > Oct 11 09:25:00 gw kernel: #7 0xc083b244 at ieee80211_ioctl_get80211+0x43= 4 > Oct 11 09:25:00 gw kernel: #8 0xc08650b8 at in_control+0x228 > Oct 11 09:25:00 gw kernel: #9 0xc080df53 at ifioctl+0x1943 > Oct 11 09:25:00 gw kernel: #10 0xc07a7d5c at soo_ioctl+0x30c > Oct 11 09:25:00 gw kernel: #11 0xc07a0b4b at kern_ioctl+0x19b > Oct 11 09:25:00 gw kernel: #12 0xc07a0969 at sys_ioctl+0xe9 > Oct 11 09:25:00 gw kernel: #13 0xc0a50823 at syscall+0x363 > Oct 11 09:25:00 gw kernel: #14 0xc0a3a271 at Xint0x80_syscall+0x21 > > > > On 10/11/2013 12:31 AM, Adrian Chadd wrote: > >> what's the backtrace from the kernel crash? >> >> That's a bit odd.. :-) >> >> >> >> -adiran >> >> >> >> On 10 October 2013 11:38, Peter Ankerst=E5l <peter@pean.org >> <mailto:peter@pean.org>> wrote: >> >> Sorry, had to rebuild kernel with debug symbols. >> >> Heres the output: >> >> (kgdb) list *0xc0800110 >> 0xc0800110 is in jenkins_hash32 >> (/usr/src/sys/libkern/jenkins_**hash.c:177). >> 172 switch(length) /* all the case >> statements fall through */ >> 173 { >> 174 case 3 : c+=3Dk[2]; >> 175 case 2 : b+=3Dk[1]; >> 176 case 1 : a+=3Dk[0]; >> 177 final(a,b,c); >> 178 case 0: /* case 0: nothing left to add */ >> 179 break; >> 180 } >> 181 /*----------------------------**-------------------------- >> report the result */ >> >> >> On Oct 9, 2013, at 11:18 PM, Adrian Chadd <adrian@freebsd.org >> <mailto:adrian@freebsd.org>> wrote: >> >> > Hi, >> > >> > Is there a backtrace for this? Iv'e not seen this before. >> > >> > >> > -adrian >> >> >> >> >
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