From owner-freebsd-usb@FreeBSD.ORG Mon May 25 18:31:03 2009 Return-Path: Delivered-To: usb@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8A07F1065675 for ; Mon, 25 May 2009 18:31:03 +0000 (UTC) (envelope-from julian@elischer.org) Received: from outF.internet-mail-service.net (outf.internet-mail-service.net [216.240.47.229]) by mx1.freebsd.org (Postfix) with ESMTP id 6D6988FC16 for ; Mon, 25 May 2009 18:31:03 +0000 (UTC) (envelope-from julian@elischer.org) Received: from idiom.com (mx0.idiom.com [216.240.32.160]) by out.internet-mail-service.net (Postfix) with ESMTP id D4917B9836; Mon, 25 May 2009 11:16:47 -0700 (PDT) X-Client-Authorized: MaGic Cook1e X-Client-Authorized: MaGic Cook1e X-Client-Authorized: MaGic Cook1e X-Client-Authorized: MaGic Cook1e Received: from julian-mac.elischer.org (home.elischer.org [216.240.48.38]) by idiom.com (Postfix) with ESMTP id 44CC52D6016; Mon, 25 May 2009 11:16:47 -0700 (PDT) Message-ID: <4A1AE08E.5010007@elischer.org> Date: Mon, 25 May 2009 11:16:46 -0700 From: Julian Elischer User-Agent: Thunderbird 2.0.0.21 (Macintosh/20090302) MIME-Version: 1.0 To: Marko Zec References: <200905251506.27771.freebsd-virtualization@dino.sk> <200905251547.59432.zec@icir.org> In-Reply-To: <200905251547.59432.zec@icir.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Cc: usb@freebsd.org, Maksim Yevmenkin , freebsd-virtualization@freebsd.org Subject: Re: Panic in netgraph with VIMAGE X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 May 2009 18:31:03 -0000 Marko Zec wrote: > On Monday 25 May 2009 15:06:27 Milan Obuch wrote: >> Hi, >> there is some bug in (most probably) netgraph code. I did fresh csup and >> rebuild today. Whenever I try to turn bluetooth on (equivalent to plugging >> in the dongle), panic occurs: >> >> ubt0: > 2.00/31.64, addr 2> on usbus3 >> panic: >> in /usr/src/sys/modules/netgraph/netgraph/../../../netgraph/ng_base.c:634 >> ng_make_node_common() >> vnet=0 curvnet=0 >> cpuid = 0 >> >> This does not occur with kernel from sources three days old. > > This is a known problem related to curvnet context not being set by the USB > device attach code - I have to lurk / shop around for some cheap USB ethernet > or bt devices to be able to reproduce & fix this locally, the alternative > would be wild guessing and planting context setting macros at random places > in the USB code, i.e. without testing, which I'm reluctant to do. > it probably requires someone who knows the bluetooth and usb-ethernet code to decide how this is done. It seems to me that the bluetooth stuff should probably just always set itself to the base (default) vimage, as it has many kinds of devices that are not really 'interfaces' so to speak and probably deserve to be in the base virtual machine. It does have SOME interface type devices in theory but I don't know if they are supported. Maksim, in vimage, before yo call teh netgraph code, the mbuf should have an interface pointer and that in turn should have a pointer to the vimage.. Alternatively, the thread coming into netgraph should run code from vimage.h that sets the current image for that thread. can you suggest places that this may occur? > Marko > > >> Part from core.txt file: >> >> #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 0xc0554e0e in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:420 >> #2 0xc05550e2 in panic (fmt=Variable "fmt" is not available. >> ) at /usr/src/sys/kern/kern_shutdown.c:576 >> #3 0xc0b947c1 in ng_make_node_common (type=0xc0b8f9a0, nodepp=0xc416b3a8) >> at >> /usr/src/sys/modules/netgraph/netgraph/../../../netgraph/ng_base.c:634 #4 >> 0xc0b8bcc4 in ubt_attach (dev=0xc4294280) >> >> at >> /usr/src/sys/modules/netgraph/bluetooth/ubt/../../../../dev/usb/bluetooth/n >> g_ubt.c:443 #5 0xc057dcbf in device_attach (dev=0xc4294280) at >> device_if.h:178 #6 0xc057e88e in device_probe_and_attach (dev=0xc4294280) >> at /usr/src/sys/kern/subr_bus.c:2473 >> #7 0xc0b38240 in usb2_probe_and_attach_sub (udev=0xc41fd800, >> uaa=0xe4116c1c) at >> /usr/src/sys/modules/usb/usb/../../../dev/usb/usb_device.c:1131 #8 >> 0xc0b3871a in usb2_probe_and_attach (udev=0xc41fd800, iface_index=255 'ÿ') >> at /usr/src/sys/modules/usb/usb/../../../dev/usb/usb_device.c:1288 #9 >> 0xc0b40ff0 in uhub_explore (udev=0xc3f07000) >> at /usr/src/sys/modules/usb/usb/../../../dev/usb/usb_hub.c:218 >> #10 0xc0b31f29 in usb2_bus_explore (pm=0xc3ed0dd4) >> >> at >> /usr/src/sys/modules/usb/usb/../../../dev/usb/controller/usb_controller.c:2 >> 15 #11 0xc0b4343a in usb2_process (arg=0xc3ed0d74) >> at /usr/src/sys/modules/usb/usb/../../../dev/usb/usb_process.c:139 >> #12 0xc0530008 in fork_exit (callout=0xc0b43360 ,. >> arg=0xc3ed0d74, frame=0xe4116d38) at /usr/src/sys/kern/kern_fork.c:830 >> #13 0xc070b550 in fork_trampoline () at >> /usr/src/sys/i386/i386/exception.s:270 >> >> At line 634 in ng_base.c, there is >> >> INIT_VNET_NETGRAPH(curvnet); >> >> I have options VIMAGE in my kernel config (actually this is first one >> succesfully compiled with mentioned option, but I did not try it too often, >> it just failed to compile before). >> >> Now I recompiled kernel again, this time without options VIMAGE in config, >> and panic does not occur. >> >> So the original problem is INIT_VNET_NETGRAPH implementation in presence of >> options VIMAGE in kernel config. If anyone has anything to test, please let >> me know. >> >> Regards, >> Milan >> _______________________________________________ >> freebsd-virtualization@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization >> To unsubscribe, send any mail to >> "freebsd-virtualization-unsubscribe@freebsd.org" > > > _______________________________________________ > freebsd-virtualization@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization > To unsubscribe, send any mail to "freebsd-virtualization-unsubscribe@freebsd.org"