Date: Mon, 26 Mar 2012 12:50:42 -0400 From: Jung-uk Kim <jkim@FreeBSD.org> To: freebsd-current@FreeBSD.org Cc: Poul-Henning Kamp <phk@phk.freebsd.dk>, Lars Engels <lars.engels@0x20.net> Subject: Re: ACPI refcount increasing Message-ID: <201203261250.44042.jkim@FreeBSD.org> In-Reply-To: <1822.1332740545@critter.freebsd.dk> References: <1822.1332740545@critter.freebsd.dk>
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On Monday 26 March 2012 01:42 am, Poul-Henning Kamp wrote: > I tried -current as of approx one day ago and was greeted with a > kernel printf flooding the screen with something about a ACPI(?) > mutex(?) refcount increasing. > > I were unable to divine any identifying info from the messages > because the screen scrolled too fast and the message was longer > than the width of the screen. > > I were unable to get a core-dump and had to reset the laptop > (Lenovo T400s) I am well aware of the issue and identified the regression was introduced in these changes: http://svnweb.freebsd.org/base/head/sys/contrib/dev/acpica/components/namespace/nspredef.c?r1=231844&r2=233250&view=patch http://svnweb.freebsd.org/base/head/sys/contrib/dev/acpica/components/namespace/nsrepair.c?r1=231844&r2=233250&view=patch http://svnweb.freebsd.org/base/head/sys/contrib/dev/acpica/include/aclocal.h?r1=229989&r2=233250&view=patch http://svnweb.freebsd.org/base/head/sys/contrib/dev/acpica/include/acnamesp.h?r1=229989&r2=233250&view=patch I notified the upstream maintainers and they are working very hard to correct the issue ATM. I'll update ACPICA as soon as they find a fix but please revert the changes for now if you are in hurry. Sorry for the breakage, Jung-uk Kim
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