Re: [netdev] htb_qlen_notify warning triggered after qdisc_tree_reduce_backlog change
From: Jakub Kicinski
Date: Fri Aug 08 2025 - 16:29:26 EST
On Wed, 6 Aug 2025 08:29:34 +0000 He, Guocai (CN) wrote:
> ### Environment
> - Kernel version: 5.15.189-rt76-yocto-preempt-rt
> - Open vSwitch version: 2.17.9
> ### Issue
> After applying the QoS configuration, the following warning appears in dmesg:
> [73591.168117] WARNING: CPU: 6 PID: 61296 at net/sched/sch_htb.c:609 htb_qlen_notify+0x3a/0x40 [sch_htb]
Is the issue easily reproducible ?
Could you try your reproducer on the latest upstream kernel ?