Bug#631945: [Bugme-new] [Bug 39372] New: Problems with HFSC Scheduler

From: Michal Soltys <redacted>
Date: Fri, 29 Jul 2011 14:29:10 +0200

quoted

On 11-07-22 11:58, Michal Pokrywka wrote:

commit b262a5da755cc6ed0cb4fba230cd9bf4037e1096 sch_sfq: fix peek()
implementation

and

commit 9df49f2bfe862573911a080c75a6d81113c5c81d sch_sfq: avoid giving
spurious NET_XMIT_CN signals

Reverting these patches makes HFSC work again.

This one (upstream 8efa885406359af300d46910642b50ca82c0fe47) seems to be
the culprit (does reverting only that one cures the problem ?)

Yes, indeed. Commit b262a5da755cc6ed0cb4fba230cd9bf4037e1096 is irrelevant.

Patch "sch_sfq: fix sfq_enqueue()" (provided by Eric Dumazet) applied to 2.6.39.1 fixes the problem, and hfsc+sfq works as expected.