Hi Anand
Thanks for looking into this.
I applied some prints in the same function to be more clear on the exact
reason and the exact problem seems to be is with
*&fe->fe_hold_list.*
func: vr_flush_entry line: 1456 *&fe->fe_hold_list*: *ffff8083010f4c34* {
vfq: ffff80007b339640
[ 249.477176] Unhandled fault: alignment fault (0x96000021) at
*0xffff8083010f4c34
*
[ 249.484494] Internal error: : 96000021 [#1] PREEMPT SMP
[ 249.489717] Modules linked in: vrouter(O)
What could be the reason for this?
-Thanks
Abhishek Jain
On Sat, Dec 26, 2015 at 8:51 AM, Anand H Krishnan <[email protected]>
wrote:
> Hi Abhishek,
>
>
> We do not have an arm system to analyze the core. Can you please do a
>
> bit more analysis (looks like you already did most of the initial digging
>
> around)?
>
>
> The place where you saw a crash seems highly unlikely. There are a couple
>
> of possibilities. &fe->fe_hold_list is invalid or __sync* stuff doesn't
> work
>
> on arm (guessing). Can you analyze the kernel crash dump?
>
>
> Cheers,
>
> Anand
>
>
> ------------------------------
> *From:* Dev <[email protected]> on behalf of abhishek
> jain <[email protected]>
> *Sent:* Thursday, December 24, 2015 12:05 AM
> *To:* [email protected]; Rajagopalan Sivaramakrishnan; Prabhjot
> Singh Sethi
> *Subject:* [opencontrail-dev] kernel crash when ping
>
>
> Hi Team
>
> I'm running ARM 64 as a compute node (4.0.4 kernel version) with contrail
> vrouter-agent running on it.The compute node is able to make connection to
> the controller node and I'm able to launch VM on compute node from the
> controller node(Opencontrail) GUI.
>
> The VM on compute node is able obtain IP address from the virtual DHCP
> server running on controller node.However I'm facing kernel crash when I'm
> pinging the virtual GW from the VM.
>
> I'm using the latest opencontrail code.I'm getting kernel crash at
> function vr_flush_entry at below line..
>
> swapped = __sync_bool_compare_and_swap(&fe->fe_hold_list, vfq, NULL);
>
> Please help me regarding this.
>
> --Thanks
> Abhishek Jain
>
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