Hello, I have finally managed to understand HFSC up to a level which allowed me to create a QoS script which maintains low VoIP latency while running stuff like eMule. Unfortunately, HFSC seems to have a severe bug. Why do I consider this as a bug defenitely? Well, my script runs without any errors, then QoS works perfectly for some hours, no error messages in kernel log. Then randomly the kernel starts saying this: Sep 10 17:14:51 router kernel: HFSC: Non-work-conserving qdisc ? Sep 10 17:14:56 router kernel: printk: 266 messages suppressed. Sep 10 17:14:56 router kernel: HFSC: Non-work-conserving qdisc ? Sep 10 17:15:01 router kernel: printk: 259 messages suppressed. Sep 10 17:15:01 router kernel: HFSC: Non-work-conserving qdisc ? Sep 10 17:15:06 router kernel: printk: 294 messages suppressed. Sep 10 17:15:06 router kernel: HFSC: Non-work-conserving qdisc ? It floods the whole kernel log with this. Traffic is also heavily affected by package loss when this happens, thus I cannot ignore it. I have to check my kernel log when I notice that I cannot access websites anymore and then restart QoS manually. My complete QoS script is attached to this mail. If this is not the right location for the bug report please tell me whom I should contact. Thanks, Leo
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