Hi all, Apparently, the ice driver does not allow disabling lsc interrupts. Starting testpmd with --no-lsc-interrupt gives this in the console: testpmd> ice_interrupt_handler(): OICR: link state change event Port 0: link state change event ice_interrupt_handler(): OICR: link state change event Port 1: link state change event I tested with version 22.11 which seems not to have the issue. I found a suspicious commit introduced in 24.03 which may be the culprit: commit 4e5dc111464e83e9a55fa466d8f682f0027b721e Author: Qi Zhang <qi.z.zhang@intel.com> Date: Thu Dec 14 03:40:54 2023 -0500 net/ice: fix link update The ice_aq_get_link_info function is not thread-safe. However, it is possible to simultaneous invocations during both the dev_start and the LSC interrupt handler, potentially leading to unexpected adminq errors. This patch addresses the issue by introducing a thread-safe wrapper that utilizes a spinlock. Fixes: cf911d90e366 ("net/ice: support link update") Cc: stable@dpdk.org Signed-off-by: Qi Zhang <qi.z.zhang@intel.com> Acked-by: Qiming Yang <qiming.yang@intel.com> https://git.dpdk.org/dpdk/commit/?id=4e5dc111464e83e9a55fa466d8f682f0027b721e
Hi Robin. I do not think that is the culprit as I reproduced with 23.11 that is not containing this commit.