From: David Ahern <dsa@cumulusnetworks.com>
To: Richard Alpe <richard.alpe@ericsson.com>,
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
James Morris <jmorris@namei.org>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [linux-next] oops in ip_route_input_noref
Date: Wed, 16 Sep 2015 07:57:30 -0600 [thread overview]
Message-ID: <55F9754A.1030507@cumulusnetworks.com> (raw)
In-Reply-To: <55F97459.5050408@ericsson.com>
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.
>
> $ 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
WARNING: multiple messages have this Message-ID (diff)
From: David Ahern <dsa@cumulusnetworks.com>
To: Richard Alpe <richard.alpe@ericsson.com>,
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
James Morris <jmorris@namei.org>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [linux-next] oops in ip_route_input_noref
Date: Wed, 16 Sep 2015 07:57:30 -0600 [thread overview]
Message-ID: <55F9754A.1030507@cumulusnetworks.com> (raw)
In-Reply-To: <55F97459.5050408@ericsson.com>
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.
>
> $ 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=0x
4 -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
next prev parent reply other threads:[~2015-09-16 13:57 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-16 9:24 [linux-next] oops in ip_route_input_noref Sergey Senozhatsky
2015-09-16 11:50 ` Richard Alpe
2015-09-16 13:07 ` David Ahern
2015-09-16 13:53 ` Richard Alpe
2015-09-16 13:53 ` Richard Alpe
2015-09-16 13:57 ` David Ahern [this message]
2015-09-16 13:57 ` David Ahern
2015-09-16 14:08 ` Richard Alpe
2015-09-16 14:08 ` Richard Alpe
2015-09-16 13:59 ` Richard Alpe
2015-09-16 13:59 ` Richard Alpe
2015-09-16 14:00 ` David Ahern
2015-09-16 23:47 ` Sergey Senozhatsky
2015-09-17 7:26 ` Tomeu Vizoso
2015-09-16 13:24 ` David Ahern
2015-09-16 15:00 ` Fabio Estevam
2015-09-16 15:04 ` David Ahern
2015-09-17 8:58 ` Thierry Reding
2015-09-18 23:06 ` Andrew Morton
2015-09-19 14:34 ` David Ahern
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