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| author | Eric Dumazet <edumazet@google.com> | 2026-03-04 01:56:40 +0000 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2026-03-12 07:09:58 -0400 |
| commit | 4596f44d4f5b93710508da5c736c2f27835bfab1 (patch) | |
| tree | 823a54aa3295f2e080f3bf5e12a8432cb62d06b0 /include/net/aligned_data.h | |
| parent | 1c46edf20f82ed1b9b41620ca6fb5fc80fb8c7dc (diff) | |
net_sched: sch_fq: clear q->band_pkt_count[] in fq_reset()
[ Upstream commit a4c2b8be2e5329e7fac6e8f64ddcb8958155cfcb ]
When/if a NIC resets, queues are deactivated by dev_deactivate_many(),
then reactivated when the reset operation completes.
fq_reset() removes all the skbs from various queues.
If we do not clear q->band_pkt_count[], these counters keep growing
and can eventually reach sch->limit, preventing new packets to be queued.
Many thanks to Praveen for discovering the root cause.
Fixes: 29f834aa326e ("net_sched: sch_fq: add 3 bands and WRR scheduling")
Diagnosed-by: Praveen Kaligineedi <pkaligineedi@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20260304015640.961780-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/net/aligned_data.h')
0 files changed, 0 insertions, 0 deletions