[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2019-01-22 Thread Joseph Salisbury
** Changed in: linux (Ubuntu Bionic) Status: In Progress => Confirmed ** Changed in: linux (Ubuntu) Status: In Progress => Confirmed ** Changed in: linux (Ubuntu Bionic) Assignee: Joseph Salisbury (jsalisbury) => (unassigned) ** Changed in: linux (Ubuntu) Assignee:

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-11-01 Thread Joseph Salisbury
You mention in comment #2 that your patch resolves this bug. Is that still the case, and have you sent it upstream for inclusion in mainline? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-10-31 Thread Mikael Magnusson
Sorry for the long delay. I have tested the following version now, and the test (pmtu-sadr.sh) reports failure. Linux ubuntu 4.14.0-041400-generic #201809131957 SMP Thu Sep 13 20:03:05 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-09-13 Thread Joseph Salisbury
I started a kernel bisect between commit v4.14 final and v4.15-rc1. The kernel bisect will require testing of about 13 test kernels. I built the first test kernel, up to the following commit: 1be2172e96e33bfa22a5c7a651f768ef30ce3984 The test kernel can be downloaded from:

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-09-13 Thread Mikael Magnusson
Yes, 4.15.0-041500rc1-generic exhibits the bug. -- 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/1788623 Title: regression: IPv6 PMTU discovery fails with source-specific routing Status

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-09-05 Thread Joseph Salisbury
Thanks for testing. There are quite a few ipv6 commits added in v4.15-rc1, so we may have to bisect through them. Can you first confirm that v4.15-rc1 exhibits the bug? It can be downloaded from: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc1/ -- You received this bug notification

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-09-01 Thread Mikael Magnusson
Yes, the following kernels also resolves this bug: Linux ubuntu 4.14.0-041400rc3-generic #201808301751 SMP Thu Aug 30 17:53:30 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux Linux ubuntu 4.14.0-041400rc3-generic #201808301846 SMP Thu Aug 30 18:47:56 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux -- You

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-08-31 Thread Joseph Salisbury
Thanks for testing. That implies that commit 35732d01fe31 is not the specific commit that introduced the regression. I built a second test kernel up to the commit f5bbe7ee79c2. This test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1788623 Can you test this kernel and

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-08-29 Thread Mikael Magnusson
Yes, kernel 4.14.0-041400rc3-generic resolves the bug. The test case in #1 succeeds with that kernel. -- 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/1788623 Title: regression: IPv6 PMTU

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-08-29 Thread Joseph Salisbury
To confirm this regression is due to commit 35732d01fe31, I built a mainline test kernel with that commits as the tip. This test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1788623 Can you test this kernel and see if it resolves this bug? -- You received this bug

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-08-28 Thread Mikael Magnusson
I ran the test case on the 4.19.0-041900rc1-generic kernel and it also has the bug. -- 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/1788623 Title: regression: IPv6 PMTU discovery fails

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-08-28 Thread Joseph Salisbury
The following commit introduced the exception table in v4.15-rc1: 35732d01fe31 ipv6: introduce a hash table to store dst cache This commit does not revert easily. Before I contact upstream regarding this regression, can you test the v4.19-rc1 kernel to see if any other commits may have helped

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-08-24 Thread Joseph Salisbury
** Changed in: linux (Ubuntu) Status: Incomplete => In Progress ** Changed in: linux (Ubuntu Bionic) Status: Incomplete => In Progress -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-08-24 Thread Mikael Magnusson
I have tested all kernels in the list (except 4.6 which link leads to 404) and the first kernel with the bug is v4.15 Final. Kernel v4.15 also seems to be the first kernel with the exception table in net/ipv6/route.c. -- You received this bug notification because you are a member of Kernel

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-08-24 Thread Joseph Salisbury
I'd like to perform a bisect to figure out what commit caused this regression. We need to identify the earliest kernel where the issue started happening as well as the last kernel that did not have this issue. Can you test the following kernels and report back? We are looking for the first kernel

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-08-23 Thread Mikael Magnusson
** Changed in: linux (Ubuntu) Status: Incomplete => New -- 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/1788623 Title: regression: IPv6 PMTU discovery fails with source-specific

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-08-23 Thread Mikael Magnusson
I added logs from a Virtual Machine I did some testing on. But I doubt they are very interesting. -- 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/1788623 Title: regression: IPv6 PMTU

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-08-23 Thread Mikael Magnusson
apport information ** Tags added: apport-collected ** Description changed: IPv6 PMTU discovery fails when using source-specific routing on Ubuntu 18.04. I have attached a test case called pmtu-sads.sh which is based on tools/testing/selftests/net/pmtu.sh in the linux source. I

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-08-23 Thread Ubuntu Foundations Team Bug Bot
** Tags added: patch -- 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/1788623 Title: regression: IPv6 PMTU discovery fails with source-specific routing Status in linux package in Ubuntu:

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-08-23 Thread Mikael Magnusson
Patch which fixes the bug for me. ** Patch added: "net/ipv6/route: Fix PMTU for source-specific routes" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788623/+attachment/5179773/+files/0001-net-ipv6-route-Fix-PMTU-for-source-specific-routes.patch -- You received this bug notification

[Kernel-packages] [Bug 1788623] Re: regression: IPv6 PMTU discovery fails with source-specific routing

2018-08-23 Thread Mikael Magnusson
** Description changed: IPv6 PMTU discovery fails when using source-specific routing on Ubuntu 18.04. I have attached a test case called pmtu-sads.sh which is based on tools/testing/selftests/net/pmtu.sh in the linux source. - I have verified that the test succeeds on: - Ubuntu