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ShayanPAL
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ROS 7.8 routing bad bug

Mon Mar 27, 2023 3:33 pm

Hi team
there is a really awful bug in the routing table CHR v7.8
which is leading the OS to high CPU usage and outage afterwards
according to this attachment
there are two default routes which are responsible for redundant path routing
but in this version, if I disable the first default route the second must be activated immediately. But the point is this is not acting like this and what happens is that the second route is remaining blue and not executive
But when I close and re-open the ip>route menu again I see IT IS active after one time re-opening!!!
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mrz
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Re: ROS 7.8 routing bad bug

Mon Mar 27, 2023 3:35 pm

Hit F5 to refresh the window.
 
ShayanPAL
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Re: ROS 7.8 routing bad bug

Mon Mar 27, 2023 3:41 pm

Hi mrz tnx for your fast response to me
I believe this is leading the OS to high CPU usage and service outage
cuze I have the very same configuration on 3 other CHR 7.8 devices but the only difference is having two default routes like this in this server(also two more interfaces and ip's)
that 3 devices are operating normally 7/24
but this device is experiencing high cpu-usage like every 24 hours
 
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Re: ROS 7.8 routing bad bug

Mon Mar 27, 2023 5:37 pm

the second route is remaining blue and not executive
And the third dynamic rule "0.0.0.0" that have distance 1???
 
ShayanPAL
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Re: ROS 7.8 routing bad bug

Mon Mar 27, 2023 10:30 pm

that is my real default route(therefore NOT blue)
these two routes I am talking about are PBR that I have done with mangle
 
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Re: ROS 7.8 routing bad bug

Mon Mar 27, 2023 10:33 pm

Ok, without see all configuration, is hard to understand all just from one screenshot......
 
ShayanPAL
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Re: ROS 7.8 routing bad bug

Tue Mar 28, 2023 3:03 am

ok fine
so I have the problem that the OS CPU is going too high like 99 and 100
how can I determine what is it for?
it happens every 24~48 hours
and it's going to be fixed with a simple reboot
no script running-no scheduler
only radius(userman)-L2TP-OVPN-6to4-ipip and connected to dude with snmp and routerOS
any idea?
 
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Re: ROS 7.8 routing bad bug

Tue Mar 28, 2023 3:14 am

DNSoverHTTPS?
 
ShayanPAL
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Re: ROS 7.8 routing bad bug

Tue Mar 28, 2023 3:18 am

Nop
I can export my configuration(hide-sensitive)
can you take a look at that?
 
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Re: ROS 7.8 routing bad bug

Tue Mar 28, 2023 3:51 am

Yes, but "tomorrow", here is late, I must go to sleep
Check twice for username/password/serial numbers/email also on script.

I'm not the only one on the forum than can check ;)
 
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Re: ROS 7.8 routing bad bug

Tue Mar 28, 2023 4:00 am

update:Config deleted
Last edited by ShayanPAL on Mon Apr 10, 2023 1:24 am, edited 1 time in total.
 
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Re: ROS 7.8 routing bad bug

Tue Mar 28, 2023 10:01 am

I can not see anything strange,
on hogh memory usage, create a supout and send it to the support, probably can see better what are the problem.
(probably the SNMP, but must be verified)
 
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Re: ROS 7.8 routing bad bug

Tue Mar 28, 2023 11:12 am

it happened again
at the very moment, i took 2 screenshots from tools>profile to see what service is causing this
any idea?
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Re: ROS 7.8 routing bad bug

Tue Mar 28, 2023 11:53 am

It's ovpn and winbox.... How many ovpn session you have?
 
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Re: ROS 7.8 routing bad bug

Tue Mar 28, 2023 11:59 am

that's not a lot(ovpn)
like 20 connections at the same time(all on android devices)
but there is no problem with the connection count cuz I have upto50 connections on the same devices with the same configuration
and for the winbox i didn't have active connections when it happened(maybe the dude routeros connection?)
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Re: ROS 7.8 routing bad bug

Tue Mar 28, 2023 12:05 pm

Try to disable dude, it use management service by winbox port.
I have disabled all ROS function on The Dude and I use only SNMP for this problem...
If you open system/script/Jobs you see a lot of connection because for each request the dude open a new connection instead of recycle what is already opened....
 
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Re: ROS 7.8 routing bad bug

Tue Mar 28, 2023 12:14 pm

ok fine
I will disable the RouterOS connection from the dude and monitor on SNMP
but in script>jobs i have nothing
ill let you know the result
 
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Re: ROS 7.8 routing bad bug

Tue Mar 28, 2023 11:06 pm

i have disabled it(dude RouterOS Connection)
but no idea why is this happening again and again
 
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Re: ROS 7.8 routing bad bug

Wed Mar 29, 2023 12:20 am

Try toi contact support with supout.rif
 
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Re: ROS 7.8 routing bad bug

Wed Mar 29, 2023 5:28 am

i have disabled it(dude RouterOS Connection)
but no idea why is this happening again and again
It's the OVPN, it's having problems in version 7.8, there are already several reports from users about it. It even happens to me and in a few minutes the router restarts. I had to go back to 7.7.
 
ShayanPAL
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Re: ROS 7.8 routing bad bug

Wed Mar 29, 2023 7:41 am

i have disabled it(dude RouterOS Connection)
but no idea why is this happening again and again
It's the OVPN, it's having problems in version 7.8, there are already several reports from users about it. It even happens to me and in a few minutes the router restarts. I had to go back to 7.7.
Have guessed so far!
Is it totally fine on 7.7?
 
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Re: ROS 7.8 routing bad bug

Wed Mar 29, 2023 8:00 am

Yes, 7.7 is stable but with a memory leak. The big problem in version 7.7 is the memory leak, which runs out of memory until I restart the router, this happens to me on average every 10 days, so I restart before it happens.
 
ShayanPAL
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Re: ROS 7.8 routing bad bug

Wed Mar 29, 2023 8:03 am

At least i hope downgrading to 7.7 will work
 
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Re: ROS 7.8 routing bad bug

Thu Mar 30, 2023 12:59 pm

At least i hope downgrading to 7.7 will work
Hi ShayanPAL. Did your problem solved?
 
ShayanPAL
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Re: ROS 7.8 routing bad bug

Fri Mar 31, 2023 11:57 am

At least i hope downgrading to 7.7 will work
Hi ShayanPAL. Did your problem solved?

It seems yes!
It's been two days passed I've downgraded everything's fine
 
ShayanPAL
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Re: ROS 7.8 routing bad bug

Mon Apr 10, 2023 1:23 am

problem fully solved downgrading to 7.7
 
ShayanPAL
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Re: ROS 7.8 routing bad bug

Mon Apr 10, 2023 1:24 am

Hit F5 to refresh the window.
f5 won't do anything literally
 
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Re: ROS 7.8 routing bad bug

Mon Apr 10, 2023 3:27 am

It seems yes!
It's been two days passed I've downgraded everything's fine
Don't use queue or interface binding with 7.7. It'll cause a crash again.

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