Hi Michael

We applied the below patch and I'm able to ping the gw for the VM.

diff vr_host_interface.c
/home/ashu/contrail/vrouter/linux/vr_host_interface.c
116c116
< #elif (LINUX_VERSION_CODE < KERNEL_VERSION(3,14,00))
---
> #elif (LINUX_VERSION_CODE < KERNEL_VERSION(3,15,0))
119,120c119
<     skb_set_hash(skb, val, PKT_HASH_TYPE_L3);
<    // skb->hash = val;
---
>     skb->hash = val;
575d573
< #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,13,00))
577,579d574
< #else
< rxhash = skb_get_hash(skb);


On Tue, Oct 20, 2015 at 7:14 PM, abhishek jain <[email protected]>
wrote:

> Hi Michael
>
> I applied the above patch at functions vr_skb_set_rxhash and linux_get_rxq
> respectively but still I'm facing the same kernel crash issue.
>
> Is there any other change required which is missing?
>
> On Mon, Oct 19, 2015 at 8:42 PM, abhishek jain <[email protected]>
> wrote:
>
>> Hi Michael
>>
>> I'll not be able to upgrade to kernel 3.13.
>> I'll apply patch,compile the vrouter again and let you know.
>>
>>
>>
>> On Mon, Oct 19, 2015 at 8:34 PM, Michael Henkel <[email protected]>
>> wrote:
>>
>>> Hi Abishek,
>>>
>>> Can you upgrade to 3.13.0-40? If not you’ll have to apply the patch I
>>> sent you and recompile the vrouter kernel module.
>>>
>>> Regards,
>>> Michael
>>>
>>> From: abhishek jain
>>> Date: Monday 19 October 2015 at 17:01
>>> To: birdman
>>> Cc: "[email protected]"
>>> Subject: Re: [opencontrail-dev] kernel panic with opencontrail VM
>>>
>>> Hi Michael
>>>
>>>
>>> Thanks for the quick reply.
>>> I'm using contrail version 2.20 and the kernel  version which I'm using
>>> is Linux-3.12.
>>>
>>>
>>>
>>> On Mon, Oct 19, 2015 at 8:17 PM, Michael Henkel <[email protected]>
>>> wrote:
>>>
>>>> What kernel version and opencontrail version are you on?
>>>> I remember similar issues with past kernels. Here is what I did in
>>>> order to fix it:
>>>>
>>>>
>>>> https://github.com/michaelhenkel/contrail-1404-upgrade/blob/master/vrouter_patch.diff
>>>>
>>>> From: Dev on behalf of abhishek jain
>>>> Date: Monday 19 October 2015 at 16:42
>>>> To: "[email protected]"
>>>> Subject: [opencontrail-dev] kernel panic with opencontrail VM
>>>>
>>>> Hi Team
>>>>
>>>>
>>>> I'm able to boot VM on  compute node with opencontrail vrouter plugin
>>>> running,able to access the console and configure Ip on the VM.
>>>> However when I'm trying to ping outside world from the VM,there is a
>>>> kernel panic and my machine is getting reboot.
>>>>
>>>> I'm facing below logs
>>>>
>>>> Unable to handle kernel paging request for unknown fault
>>>> Faulting instruction address: 0x8000000000be2ff0
>>>> Oops: Kernel access of bad area, sig: 7 [#1]
>>>> SMP NR_CPUS=24 CoreNet Generic
>>>> Modules linked in: vrouter(O) nfsd exportfs
>>>> CPU: 0 PID: 7945 Comm: kvm Tainted: G           O
>>>> 3.12.37-rt51-QorIQ-SDK-V1.8+gf488de6 #1
>>>> task: c000000179b0c100 ti: c00000017ffac000 task.ti: c0000001475e4000
>>>> NIP: 8000000000be2ff0 LR: 8000000000be2fd8 CTR: 8000000000bc51e4
>>>> REGS: c00000017ffaf590 TRAP: 0600   Tainted: G           O
>>>> (3.12.37-rt51-QorIQ-SDK-V1.8+gf488de6)
>>>> MSR: 0000000080029000 <CE,EE,ME>  CR: 84022248  XER: 20000000
>>>> SOFTE: 1
>>>> DEAR: c00000006b4ad04b, ESR: 0000000000800000
>>>>
>>>> GPR00: 8000000000be33d0 c00000017ffaf810 8000000000c01b98
>>>> 0000000000000062
>>>> GPR04: c00000006b4ad000 0000000000000018 0000000000000000
>>>> 0000000000004000
>>>> GPR08: 0000000000000001 c00000006b4ad04b 8000000000bc51e4
>>>> c00000000002ad80
>>>> GPR12: 8000000000bee0d0 c00000000fff4000 000000001062a9ac
>>>> 000000000000000f
>>>> GPR16: 0000000000000100 0000000000000100 c000000000d010c0
>>>> 0000000000000018
>>>> GPR20: 0000000000000000 0000000000000001 00000000000086dd
>>>> 00000000000088a8
>>>> GPR24: 0000000000000062 00000000000115a0 8000000000bfb7d8
>>>> 0000000000000062
>>>> GPR28: 8000000000bfb8c0 c00000017ffafa90 c00000006b4ad000
>>>> c0000001779db468
>>>> NIP [8000000000be2ff0] .vr_flow_lookup+0x10c/0x7f4 [vrouter]
>>>> LR [8000000000be2fd8] .vr_flow_lookup+0xf4/0x7f4 [vrouter]
>>>> Call Trace:
>>>> [c00000017ffaf810] [8000000000be33d0] .vr_flow_lookup+0x4ec/0x7f4
>>>> [vrouter] (unreliable)
>>>> [c00000017ffaf8e0] [8000000000bdd960] .vr_inet_flow_lookup+0x164/0x2d0
>>>> [vrouter]
>>>> [c00000017ffaf9a0] [8000000000be37ac] .vr_flow_forward+0xd4/0xe0
>>>> [vrouter]
>>>> [c00000017ffafa20] [8000000000bd6d48] .vr_virtual_input+0xa0/0x148
>>>> [vrouter]
>>>> [c00000017ffafac0] [8000000000bd8d44] .vm_rx+0x14c/0x19c [vrouter]
>>>> [c00000017ffafb70] [8000000000bc9d60] .linux_rx_handler+0x290/0x954
>>>> [vrouter]
>>>> [c00000017ffafc30] [c00000000067e904]
>>>> .__netif_receive_skb_core+0x634/0x770
>>>> [c00000017ffafd20] [c000000000681950] .process_backlog+0xf4/0x228
>>>> [c00000017ffafdf0] [c0000000006810b8] .net_rx_action+0x208/0x2c8
>>>> [c00000017ffafea0] [c00000000006b0dc] .__do_softirq+0x158/0x284
>>>> [c00000017ffaff90] [c000000000014f20] .call_do_softirq+0x14/0x24
>>>> [c0000001475e77a0] [c000000000005ef0] .do_softirq+0xd0/0xfc
>>>> [c0000001475e7830] [c00000000006aa80] .local_bh_enable+0xa4/0xac
>>>> [c0000001475e78b0] [c0000000006809c4] .netif_rx_ni+0x28/0x40
>>>> [c0000001475e7930] [c0000000003f8f60] .tun_get_user+0x440/0x8fc
>>>> [c0000001475e7a30] [c0000000003f953c] .tun_chr_aio_write+0x8c/0xcc
>>>> [c0000001475e7ac0] [c000000000140fe0] .do_sync_readv_writev+0x8c/0x10c
>>>> [c0000001475e7bd0] [c0000000001419e8]
>>>> .compat_do_readv_writev+0x110/0x284
>>>> [c0000001475e7d20] [c000000000141c30] .compat_writev+0x50/0x84
>>>> [c0000001475e7d90] [c000000000142e70] .compat_SyS_writev+0x58/0xac
>>>> [c0000001475e7e30] [c000000000000598] system_call+0x38/0xc4
>>>> Instruction dump:
>>>> 83210070 e9490000 f8410028 7d4903a6 e8490008 4e800421 e8410028
>>>> 393e004b
>>>> 7c0004ac 7c7b1a14 7f604828 7f7b1a14 <7f60492d> 40a2fff4 4c00012c
>>>> e93c0000
>>>> ---[ end trace 24972e6a5e03c19a ]---
>>>>
>>>> Please help me regarding this.
>>>>
>>>>
>>>> Thanks
>>>> Abhishek Jain
>>>>
>>>
>>>
>>
>
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