Date: Mon, 25 May 2009 15:47:59 +0200 From: Marko Zec <zec@icir.org> To: freebsd-virtualization@freebsd.org Subject: Re: Panic in netgraph with VIMAGE Message-ID: <200905251547.59432.zec@icir.org> In-Reply-To: <200905251506.27771.freebsd-virtualization@dino.sk> References: <200905251506.27771.freebsd-virtualization@dino.sk>
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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: <Micro Star International product 0xa97a, class 224/1, rev > 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=3D0 curvnet=3D0 > cpuid =3D 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= =20 device attach code - I have to lurk / shop around for some cheap USB ethern= et=20 or bt devices to be able to reproduce & fix this locally, the alternative=20 would be wild guessing and planting context setting macros at random places= =20 in the USB code, i.e. without testing, which I'm reluctant to do. 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=3D260) at /usr/src/sys/kern/kern_shutdown.c= :420 > #2 0xc05550e2 in panic (fmt=3DVariable "fmt" is not available. > ) at /usr/src/sys/kern/kern_shutdown.c:576 > #3 0xc0b947c1 in ng_make_node_common (type=3D0xc0b8f9a0, nodepp=3D0xc416= b3a8) > at > /usr/src/sys/modules/netgraph/netgraph/../../../netgraph/ng_base.c:634 #4= =20 > 0xc0b8bcc4 in ubt_attach (dev=3D0xc4294280) > > at > /usr/src/sys/modules/netgraph/bluetooth/ubt/../../../../dev/usb/bluetooth= /n >g_ubt.c:443 #5 0xc057dcbf in device_attach (dev=3D0xc4294280) at > device_if.h:178 #6 0xc057e88e in device_probe_and_attach (dev=3D0xc42942= 80) > at /usr/src/sys/kern/subr_bus.c:2473 > #7 0xc0b38240 in usb2_probe_and_attach_sub (udev=3D0xc41fd800, > uaa=3D0xe4116c1c) at > /usr/src/sys/modules/usb/usb/../../../dev/usb/usb_device.c:1131 #8=20 > 0xc0b3871a in usb2_probe_and_attach (udev=3D0xc41fd800, iface_index=3D255= '=FF') > at /usr/src/sys/modules/usb/usb/../../../dev/usb/usb_device.c:1288 #9=20 > 0xc0b40ff0 in uhub_explore (udev=3D0xc3f07000) > at /usr/src/sys/modules/usb/usb/../../../dev/usb/usb_hub.c:218 > #10 0xc0b31f29 in usb2_bus_explore (pm=3D0xc3ed0dd4) > > at > /usr/src/sys/modules/usb/usb/../../../dev/usb/controller/usb_controller.c= :2 >15 #11 0xc0b4343a in usb2_process (arg=3D0xc3ed0d74) > at /usr/src/sys/modules/usb/usb/../../../dev/usb/usb_process.c:139 > #12 0xc0530008 in fork_exit (callout=3D0xc0b43360 <usb2_process>,. > arg=3D0xc3ed0d74, frame=3D0xe4116d38) 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 ofte= n, > 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 l= et > 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"
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