Date: Fri, 11 Oct 2013 09:28:44 +0200 From: =?ISO-8859-1?Q?Peter_Ankerst=E5l?= <peter@pean.org> To: Adrian Chadd <adrian@freebsd.org> Cc: FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: kern/182665: [wlan] Kernel panic when creating second wlandev. Message-ID: <5257A8AC.40703@pean.org> In-Reply-To: <CAJ-VmokmDnGy7wMh6AYBpu414tqDBmcuu4f=7qfBJZs7YM7qSA@mail.gmail.com> 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>
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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 = 1; apic id = 01
Oct 11 09:25:00 gw kernel: fault virtual address = 0x0
Oct 11 09:25:00 gw kernel: fault code = supervisor read, page
not present
Oct 11 09:25:00 gw kernel: instruction pointer = 0x20:0xc0800600
Oct 11 09:25:00 gw kernel: stack pointer = 0x28:0xe8d879e0
Oct 11 09:25:00 gw kernel: frame pointer = 0x28:0xe8d879e8
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 = base 0x0, limit
0xfffff, type 0x1b
Oct 11 09:25:00 gw kernel: = DPL 0, pres 1, def32 1, gran 1
Oct 11 09:25:00 gw kernel: processor eflags = interrupt enabled,
resume, IOPL = 0
Oct 11 09:25:00 gw kernel: current process = 2968 (bsnmpd)
Oct 11 09:25:00 gw kernel: trap number = 12
Oct 11 09:25:00 gw kernel: panic: page fault
Oct 11 09:25:00 gw kernel: cpuid = 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+0x434
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 Ankerstål <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+=k[2];
> 175 case 2 : b+=k[1];
> 176 case 1 : a+=k[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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