Date: Mon, 21 Mar 2005 11:17:03 GMT From: Juho Vuori <juho.vuori@kepa.fi> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/79080: acpi thermal changes freezes HP nx6110 Message-ID: <200503211117.j2LBH3Af004374@www.freebsd.org> Resent-Message-ID: <200503211120.j2LBK1Yc020641@freefall.freebsd.org>
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>Number: 79080 >Category: i386 >Synopsis: acpi thermal changes freezes HP nx6110 >Confidential: no >Severity: serious >Priority: low >Responsible: freebsd-i386 >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Mar 21 11:20:00 GMT 2005 >Closed-Date: >Last-Modified: >Originator: Juho Vuori >Release: 5.4-PRERELEASE >Organization: >Environment: FreeBSD loppa 5.4-PRERELEASE FreeBSD 5.4-PRERELEASE #3: Fri Mar 18 08:21:56 EET 2005 juho@loppa:/usr/obj/usr/src/sys/LOPPA i386 >Description: On HP nx6110 (intel 910gml chipset, celeron-m) and ACPI enabled: When system temperature raises/drops above/below hw.acpi.thermal.tz0._ACx levels the system freezes. The system freezes before the system fan gets switched on/off by the event. If the system is compiled with 4BSD scheduler, the freeze will last forever, with ULE scheduler, it is just a few seconds long. It is caused by an acpi (irq9) interrupt storm. With acpi disabled, the system works perfectly. >How-To-Repeat: Take HP nx 6110 laptop. Get freebsd with acpi compiled in and arange so that the system temperature raises/drops over _ACx levels. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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