Hi, Rafael > From: linux-acpi-owner@xxxxxxxxxxxxxxx [mailto:linux-acpi-owner@xxxxxxxxxxxxxxx] On Behalf Of Rafael J. > Wysocki > Subject: Re: [PATCH 0/6] ACPICA: Interpreter: Improve lock order fixes > > On Tue, Oct 25, 2016 at 7:20 AM, Lv Zheng <zetalog@xxxxxxxxx> wrote: > > This patchset improves ACPICA intepreter lock order fixes. Including > > several urgent regression fixes [PATCH 0-3]. > > OK, thanks! > > So patches [4-6/6] appear to be cleanups and I'd prefer them to be > applied in a usual way (ie. via the upstream ACPICA). I think PATCH 4 is also an urgent fix. On certain table loading mode (we have 3 now). When acpi_ds_initialize_objects() is invoked, acpi_ds_initialize_region() will be invoked. While in other modes, it will be invoked in acpi_ds_load2_end_op(), so no-op in acpi_ds_initialize_objects(). When it is not no-op in acpi_ds_initialize_objects(), the wrong returning value becomes an exception preventing the table from being correctly loaded/initialized. [PATCH 5-6] are cleanups. > > I'd like to take the [1-3/6] as fixes for 4.9-rc3 though, but for that > I need you to tell me which mainline kernel commits are fixed by them. > > IOW, what should I put into the Fixes: tags. > > [In the future, if you post a regression fix, please always add a > FIxes: tag to it pointing to the commit being fixed.] OK, I'll add the Fixes tag and re-send the patches. Thanks and best regards Lv > > > Patches tested with customized ACPI table where _PS0/_PS3 methods are > > customized to invoke a serialized control method which creates named > > objects. When pm_async=yes, AE_ALREADY_EXISTS can be seen in suspend/resume > > process. This is an existing issue, triggered in 4.9-rc1 by ACPICA > > interpreter lock order fixes, and can be fixed by [PATCH 1] in this series. > > > > Lv Zheng (6): > > ACPICA: Dispatcher: Fix order issue of method termination > > ACPICA: Dispatcher: Fix an unbalanced lock exit path in > > acpi_ds_auto_serialize_method() > > ACPICA: Dispatcher: Tune interpreter lock around > > acpi_ev_initialize_region() > > ACPICA: Events: Cleanup acpi_ev_initialize_region() > > ACPICA: Tables: Cleanup acpi_tb_install_and_load_table() > > ACPICA: Tables: Add acpi_tb_unload_table() > > Thanks, > Rafael > -- > To unsubscribe from this list: send the line "unsubscribe linux-acpi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html ��.n��������+%������w��{.n�����{�����ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f
