On Wed, 24 Nov 2021 17:07:16 -0800 Vinicius Costa Gomes wrote:
Hi Stefan,
Jakub Kicinski kuba@kernel.org writes:
On Wed, 24 Nov 2021 18:20:40 +0100 Stefan Dietrich wrote:
Hi all,
six exciting hours and a lot of learning later, here it is. Symptomatically, the critical commit appears for me between 5.14.21- 051421-generic and 5.15.0-051500rc2-generic - I did not find an amd64 build for rc1.
Please see the git-bisect output below and let me know how I may further assist in debugging!
Well, let's CC those involved, shall we? :)
Thanks for working thru the bisection!
a90ec84837325df4b9a6798c2cc0df202b5680bd is the first bad commit commit a90ec84837325df4b9a6798c2cc0df202b5680bd Author: Vinicius Costa Gomes vinicius.gomes@intel.com Date: Mon Jul 26 20:36:57 2021 -0700
igc: Add support for PTP getcrosststamp()Oh! That's interesting.
Can you try disabling CONFIG_PCIE_PTM in your kernel config? If it works, then it's a point in favor that this commit is indeed the problematic one.
I am still trying to think of what could be causing the lockup you are seeing.
Actually we just had another report pointing at commit f32a21376573 ("ethtool: runtime-resume netdev parent before ethtool ioctl ops"). That seems more likely :(