Jakub Kicinski:
> Is the issue easily reproducible ?
Yes, 100% reproducible when with the kernel commit of .
it caused by the kernel commit of e269f29e9395527bc00c213c6b15da04ebb35070
when I revert this commit, it is ok.
> Could you try your reproducer on the latest upstream kernel ?
for 5.15 kernel , 5.15.189 is the latest upstream, this commit is
introduced in 5.15.187.
I don't know if OVS should be updated according to the updating of commit
e269f29e9395527bc00c213c6b15da04ebb35070
or the commit of kernel have some issue itself ?
________________________________________
From: Jakub Kicinski <k...@kernel.org>
Sent: Saturday, August 9, 2025 4:29 AM
To: He, Guocai (CN)
Cc: Lion Ackermann; net...@vger.kernel.org; linux-ker...@vger.kernel.org;
ovs-discuss@openvswitch.org
Subject: Re: [netdev] htb_qlen_notify warning triggered after
qdisc_tree_reduce_backlog change
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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 ?
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