Thanks Tobias for the advise, adding a kernel Task to pull in the kernel team as well (confirmed to stop the bot from asking for logs).
@bugproxy: "configure the encryption with aes128gcm8 for IPsec" can probably be done in more than one way. To avoid wasting effort could you just provide the config files you used on both ends This is -not- overriding the question of xnox if it works in a newer strongswan. @bugproxy: As the kernel might be important (see the comment above), another check is to verify if the same occurs with the HWE kernel "linux-generic-hwe-18.04" currently at 4.18.0.18.68. Furthermore you should try 5.1 from [1] This is -not- overriding the question of xnox if it works in a newer strongswan either. [1]: https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.1/ ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: linux (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1828035 Title: StrongSwan with GCM and large packet sizes produces unstable behavior Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: Confirmed Status in strongswan package in Ubuntu: Incomplete Bug description: StrongSwan with GCM and large packet sizes produces unstable behavior when used in Linux native environment. ---uname output--- Linux ubu01 4.15.0-42-generic #45-Ubuntu SMP Thu Nov 15 19:29:11 UTC 2018 s390x s390x s390x GNU/Linux Machine Type = 3906 / M04 (z14), LPAR (dedicated) ---Debugger--- A debugger is not configured ---Steps to Reproduce--- On two separate machines (Linux native), install StrongSwan and on both machines, configure the encryption with aes128gcm8 for IPsec. Then run the following command from one of the machine: ``` $# ping <other_machine_ip> -s 1024 ``` Small packet sizes are working as expected. However, anything large (around 1024 bytes or more) are sometimes returning wrong values, or the packets are getting lost. This problem does not occur for ciphers not involving GCM. Userspace tool common name: StrongSwan The userspace tool has the following bit modes: both Userspace package: StrongSwan Userspace tool obtained from project website: na -Attach ltrace and strace of userspace application. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1828035/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
