Date: Fri, 04 Dec 2009 23:45:25 +0200 From: Andriy Gapon <avg@freebsd.org> To: "Moore, Robert" <robert.moore@intel.com> Cc: "freebsd-acpi@freebsd.org" <freebsd-acpi@freebsd.org>, Tarick <tungan@ukr.net> Subject: Re: panic in AcpiExReleaseMutex Message-ID: <4B1982F5.9020805@freebsd.org> In-Reply-To: <4B198142.2040407@icyb.net.ua> References: <4B178387.4050601@icyb.net.ua> <4911F71203A09E4D9981D27F9D8308583E8F26CF@orsmsx503.amr.corp.intel.com> <4B189CD6.30906@icyb.net.ua> <4911F71203A09E4D9981D27F9D8308583E8F2A1F@orsmsx503.amr.corp.intel.com> <4B1975EE.5070803@icyb.net.ua> <4911F71203A09E4D9981D27F9D8308583E8F2BA9@orsmsx503.amr.corp.intel.com> <4B197D0E.1020400@icyb.net.ua> <4911F71203A09E4D9981D27F9D8308583E8F2C06@orsmsx503.amr.corp.intel.com> <4B198142.2040407@icyb.net.ua>
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on 04/12/2009 23:38 Andriy Gapon said the following: > on 04/12/2009 23:24 Moore, Robert said the following: >> Another question, however: is the global lock involved in any way? > > Yes. EC querying is performed under global lock. That is, it gets locked and > unlocked in EcGpeQueryHandler function before _Qxx evaluation. > I am actually curious why you asked this question. Hmm, I lied, this is done only if _GLK successfully evaluates to non-zero value, which is not the case. -- Andriy Gapon
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