On Fri, 2016-07-01 at 11:06 +0800, Ding Tianhong wrote:
> I debug this problem, and found that the __fib6_clean_all() would not
> hold the cpu more than 1 second event though there
> is a lot of ipv6 address to deal with, but the notifier_chian would
> call the ipv6 notifier several times and hold
On 2016/6/28 14:27, Eric Dumazet wrote:
> On Tue, 2016-06-28 at 08:22 +0200, Eric Dumazet wrote:
>
>> Follow the stack trace and add another cond_resched() where it is needed
>> then ?
>>
>> Lot of this code was written decade ago where nobody expected a root
>> user was going to try hard to crash
On Mon, Jun 27, 2016 at 11:22 PM, Eric Dumazet wrote:
> Lot of this code was written decade ago where nobody expected a root
> user was going to try hard to crash its host ;)
+1
Adding cond_resched() to appropriate network notifiers sounds better.
On Tue, 2016-06-28 at 08:22 +0200, Eric Dumazet wrote:
> Follow the stack trace and add another cond_resched() where it is needed
> then ?
>
> Lot of this code was written decade ago where nobody expected a root
> user was going to try hard to crash its host ;)
>
> I did not check if the followi
On Tue, 2016-06-28 at 14:09 +0800, Ding Tianhong wrote:
> On 2016/6/28 13:13, Eric Dumazet wrote:
> > On Tue, 2016-06-28 at 12:56 +0800, Ding Tianhong wrote:
> >> The problem was occurs in my system that a lot of drviers register
> >> its own handler to the notifiler call chain for netdev_chain, an
On 2016/6/28 13:13, Eric Dumazet wrote:
> On Tue, 2016-06-28 at 12:56 +0800, Ding Tianhong wrote:
>> The problem was occurs in my system that a lot of drviers register
>> its own handler to the notifiler call chain for netdev_chain, and
>> then create 4095 vlan dev for one nic, and add several ipv6
On Tue, 2016-06-28 at 12:56 +0800, Ding Tianhong wrote:
> The problem was occurs in my system that a lot of drviers register
> its own handler to the notifiler call chain for netdev_chain, and
> then create 4095 vlan dev for one nic, and add several ipv6 address
> on each one of them, just like thi
The problem was occurs in my system that a lot of drviers register
its own handler to the notifiler call chain for netdev_chain, and
then create 4095 vlan dev for one nic, and add several ipv6 address
on each one of them, just like this:
for i in `seq 1 4095`; do ip link add link eth0 name eth0.$i
