Date: Wed, 28 Mar 2018 17:39:48 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-usb@FreeBSD.org Subject: [Bug 226968] IRQ storm on cpu0 timer when holding down key on USB keyboard Message-ID: <bug-226968-17-ZZPA5nMZG1@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-226968-17@https.bugs.freebsd.org/bugzilla/> References: <bug-226968-17@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D226968 --- Comment #26 from commit-hook@freebsd.org --- A commit references this bug: Author: hselasky Date: Wed Mar 28 17:39:23 UTC 2018 New revision: 331692 URL: https://svnweb.freebsd.org/changeset/base/331692 Log: Fix for regression issue in USB keyboard driver after r304735. A series of zero delay callouts can happen causing high CPU usage of the timer subsystem when trying to repeat keys, because the time of the absolute timeout is not moving forward. The condition clears when all keys are released. Reported by: Johannes Lundberg <johalun0@gmail.com> Discussed with: bde@ PR: 226968 MFC after: 1 week Sponsored by: Mellanox Technologies Changes: head/sys/dev/usb/input/ukbd.c --=20 You are receiving this mail because: You are the assignee for the bug.=
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