Date: Thu, 24 Sep 2009 22:47:43 +0200 From: "Paul B. Mahol" <onemda@gmail.com> To: Raphael Kubo da Costa <kubito@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: 8.0RC1 - Kernel panic when loading a ndisgen-generated module (rtl8180_sys) Message-ID: <3a142e750909241347w1f7ba8e2jd6c98d7810aaf28b@mail.gmail.com> In-Reply-To: <68c3445d0909240808l4d254c84i4a431701ed10cbfa@mail.gmail.com> References: <68c3445d0909212153rf19ec23p81ecc0a070f6d594@mail.gmail.com> <3a142e750909220343k153daac0xc00099fc09c176ac@mail.gmail.com> <68c3445d0909220551k33973d38iccf20c030a00b6c8@mail.gmail.com> <3a142e750909221420m29ae8302t71ed9558c77542f4@mail.gmail.com> <68c3445d0909221449g62904ae7pa4deb939baf4be1@mail.gmail.com> <3a142e750909221453l25d5dc8eifcbe70b39ced2ea8@mail.gmail.com> <68c3445d0909232143r623d9d2ex768578ff6c26d3b9@mail.gmail.com> <3a142e750909240244h59a4a001o13a4a7a46e7a75a1@mail.gmail.com> <68c3445d0909240546n371fe467wbf7ffb7284a9099@mail.gmail.com> <68c3445d0909240808l4d254c84i4a431701ed10cbfa@mail.gmail.com>
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On 9/24/09, Raphael Kubo da Costa <kubito@gmail.com> wrote: > 2009/9/24 Raphael Kubo da Costa <kubito@gmail.com>: >> 2009/9/24 Paul B. Mahol <onemda@gmail.com>: >>> On 9/24/09, Raphael Kubo da Costa <kubito@gmail.com> wrote: >>>> 2009/9/22 Paul B. Mahol <onemda@gmail.com>: >>>>> On 9/22/09, Raphael Kubo da Costa <kubito@gmail.com> wrote: >>>>>> While I'm not at home to do the other things you've mentioned: I don't >>>>>> even have time to run ifconfig - I've commented out the lines enabling >>>>>> ndis, if_ndis and rtl8180_sys in /boot/loader.conf. I just run kldload >>>>>> rtl8180_sys the kernel panics automatically. >>>>> >>>>> Just make sure you are using correct kernel source files(8.0 and not >>>>> 7.X). >>>> >>>> Well, after trying to fix things I ended up with a system that >>>> wouldn't even boot. So I formatted everything and installed 8.0-RC1 >>>> from the DVD. >>> >>> Does this installation installed new 8.0-RC1 sources in /sys ? >> Yes. >> >>>> ndisgen worked fine and I was able to load the module I had generated. >>>> However, wpa_supplicant does not work, and always writes the following >>> >>> With what arguments did wpa_supplicant start? >> I just ran /etc/rc.d/netif restart, so I'm not 100% sure. -D ndis -i >> ndis0 -c /etc/wpa_supplicant.conf, I guess, since when I ran it with >> these arguments the same errors were printed. >>> >>>> error messages after I try to use /etc/rc.d/netif restart: >>>> >>>> Sep 24 01:30:53 borges wpa_supplicant[1689]: Failed to initialize >>>> driver interface >>>> ifconfig: ioctl(SIOCAIFADDR): Invalid argument >>>> ioctl[SIOCG80211, op 98, len 32]: Invalid argument >>>> >>>> When I unloaded the ndis, if_ndis and rtl8180_sys modules and tried to >>>> kldload the latter, the kernel panicked again. >>>> >>>> Fatal trap 12: page fault while in kernel mode >>>> cpuid = 0; apic id = 00 >>>> fault virtual address = 0xc4b3631a >>>> fault code = supervisor read, page not present >>>> instruction pointer = 0x20:0xc4b136b3 >>>> stack pointer = 0x28:0xe3617a44 >>>> frame pointer = 0x28:0xe3617aac >>>> 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 = 2223 (ifconfig) >>> >>> But ifconfig is here again. So panic did not happened while loading >>> module. >> Is there anything I can do to get more information about this? >>> >>>> trap number = 12 >>>> panic: page fault >>>> cpuid = 0 >>>> Uptime: 6m6s >>>> Physical memory: 883 MB >>>> Dumping 69 MB: 54 38 22 6 >>>> >>>> >>>> Reading symbols from /boot/kernel/if_ndis.ko...Reading symbols from >>>> /boot/kernel/if_ndis.k >>>> o.symbols...done. >>>> done. >>>> Loaded symbols for /boot/kernel/if_ndis.ko >>>> Reading symbols from /boot/kernel/ndis.ko...Reading symbols from >>>> /boot/kernel/ndis.ko.symb >>>> ols...done. >>>> done. >>>> Loaded symbols for /boot/kernel/ndis.ko >>>> Reading symbols from /boot/modules/rtl8180_sys.ko...done. >>>> Loaded symbols for /boot/modules/rtl8180_sys.ko >>>> #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 0xc08823c7 in boot (howto=260) at >>>> /usr/src/sys/kern/kern_shutdown.c:416 >>>> #2 0xc08826b9 in panic (fmt=Variable "fmt" is not available. >>>> ) at /usr/src/sys/kern/kern_shutdown.c:579 >>>> #3 0xc0bb346c in trap_fatal (frame=0xe3617a04, eva=3300090650) >>>> at /usr/src/sys/i386/i386/trap.c:933 >>>> #4 0xc0bb36f0 in trap_pfault (frame=0xe3617a04, usermode=0, >>>> eva=3300090650) >>>> at /usr/src/sys/i386/i386/trap.c:846 >>>> #5 0xc0bb40d5 in trap (frame=0xe3617a04) at >>>> /usr/src/sys/i386/i386/trap.c:528 >>>> #6 0xc0b96a4b in calltrap () at /usr/src/sys/i386/i386/exception.s:165 >>>> #7 0xc4b136b3 in ndis_rtl8180_sys_drv_data_start () >>>> from /boot/modules/rtl8180_sys.ko >>>> Previous frame inner to this frame (corrupt stack?) >>>> (kgdb) >>>> >>> >>> The backtrace is useless - dead end. > > OK, I finally got things to work. > > After finally reading UPDATING, I found out that I needed to change my > ifconfig_ndis="WPA blablabla" line in rc.conf to > wlans_ndis0=wlan0 > ifconfig_wlan0="WPA blablabla" > > I did that without rebooting, things still didn't work, I kldunloaded > and kldloaded rtl8180_sys and the kernel panicked again. > > However, after the reboot everything worked as expected. Yeah, there are issues with vap being used uninitaliazed. I though that I already covered all possible cases but I was wrong. -- Paul
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