I can't answer exactly why it happened. System behavior when the root file
system is exhausted is very unpredictable and this behavior, while strange,
doesn't really surprise me. I wouldn't expect anything to be done to allow
proper functionality with an exhausted filesystem. I also don't think that
this really points to a larger problem. It's also likely that there were a
lot of other odd behaviors that you didn't realize!

I'd consider what is exhausting your filesystem. Probably logs. And move
that to a mount point that isn't part of the operating system.

Good luck!
-Brett

On Thu, Feb 20, 2025 at 2:20 AM Leonid Fainshtein via sr-users <
[email protected]> wrote:

> Hi,
> I am using Kamailio v.5.8.4 on Ubuntu 24.04, kernel 6.8.0-51-generic
> In the configuration script I explicitly set $fs="udp:adrr:port". In
> normal situations, it works properly and I see that the UDP SIP requests
> are sent from the requested IP and port.
> Due to some reasons, free space on the server root filesystem was
> exhausted.
> I cleaned up the file system and everything looked good except the fact
> that Kamailio started to send messages from ephemeral IP ports instead of
> the port defined in $fs.
> Restart of Kamailio didn't solve the problem.
> But the server reboot fixed the issue.
> I don't understand how the lack of free disk space can cause such a
> problem and I'm afraid that there is another reason that I am missing.
> Has anybody seen such a problem?
>
> Best regards,
> Leonid
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-- 

========================================================
Brett Nemeroff
Voice Fox Telephony LLC
Office: 512-670-8369
Email: [email protected]
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