On 2015-09-16 15:57, David Ahern wrote: > On 9/16/15 7:53 AM, Richard Alpe wrote: >>>> I to get an Oops in ip_route_input_noref(). It happens occasionally during >>>> bootup. >>>> KVM environment using virtio driver. Let me know if you need any >>>> additional info or >>>> if you want me to try to bisect it. >>>> >>>> Starting network... >>>> ... >>>> [ 0.877040] BUG: unable to handle kernel NULL pointer dereference at >>>> 0000000000000056 >>>> [ 0.877597] IP: [<ffffffff8155b5e2>] ip_route_input_noref+0x1a2/0xb00 >>> >>> Can you send me your kernel config and qemu command line? KVM with virtio >>> networking is a primary test vehicle, and I did not encounter this at all. >> Sure thing. Not sure how ppl normally provide files on netdev but I'm just >> going >> to go ahead and paste them here :) > > An attachment for the config is better than inline. Fantastic day today, I managed to mess up two out of two copy pastes. Sorry about that.. Here is the proper kconfig as .gz :)
Regards Richard > >> >> $ ps aux | grep kvm >> qemu-system-x86_64 -enable-kvm -name tipc-medium-node1 -S -machine >> pc-0.14,accel=kvm,usb=off -m 1024 -realtime mlock=off -smp >> 2,sockets=2,cores=1,threads=1 -uuid cdec478a-5f0d-49f1-b25e-fac4ca0b290c >> -no-user-config -nodefaults -chardev >> socket,id=charmonitor,path=/var/lib/libvirt/qemu/tipc-medium-node1.monitor,server,nowait >> -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown >> -boot order=n,menu=on,strict=on -device >> piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -netdev tap,fd=25,id=hostnet0 >> -device >> e1000,netdev=hostnet0,id=net0,mac=00:0f:ff:10:04:01,bus=pci.0,addr=0x3 >> -chardev pty,id=charserial0 -device >> isa-serial,chardev=charserial0,id=serial0 -vnc 127.0.0.1:28101 -device >> cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device >> virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 -msg timestamp=on >> >> $ cat .config >> # >> # Automatically generated file; DO NOT EDIT. >> # Linux/x86 3.12.28 Kernel Configuration >> # > > 3.12.28? That should say this for net-next: > > # Linux/x86 4.2.0 Kernel Configuration > > Or are you reporting a problem with 3.12.28? > > David
config.gz
Description: application/gzip
