Date: Tue, 07 Apr 2026 11:10:43 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 289869] if_io_tqg_* threads get stuck taking CPU time while doing nothing. Message-ID: <bug-289869-227-kIXWjJF6fB@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-289869-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=289869 Px <forums@px.in.ua> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |forums@px.in.ua --- Comment #3 from Px <forums@px.in.ua> --- Got hit by this today, 2 days after updating to 14.4-RELEASE, but I don't use dummynet, just plain ipfw+nat. After searching through bugs for similar signatures I've found https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240944. In comment 23 there is an advice to disable LRO on igb driver, and that is exactly what removed the problem for me, no more multiple if_io_tqg_ threads consuming all CPU cores, even with torrent enabled. I'm not sure what was the status of LRO before the upgrade, but at least for now disabling it fixes the performance problem. -- You are receiving this mail because: You are the assignee for the bug.home | help
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