Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel

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To: "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx>
Subject: Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel
From: Borislav Petkov <bp@xxxxxxxxx>
Date: Wed, 11 Jan 2017 10:21:06 +0100
Cc: "Zheng, Lv" <lv.zheng@xxxxxxxxx>, "Rafael J. Wysocki" <rafael@xxxxxxxxxx>, "Wysocki, Rafael J" <rafael.j.wysocki@xxxxxxxxx>, "Moore, Robert" <robert.moore@xxxxxxxxx>, J?rg R?del <joro@xxxxxxxxxx>, lkml <linux-kernel@xxxxxxxxxxxxxxx>, Linux ACPI <linux-acpi@xxxxxxxxxxxxxxx>
In-reply-to: <20170110055129.GK3800@linux.vnet.ibm.com>
References: <20170109093329.jd7uwlcpci4icpd3@pd.tnic> <20170109221831.GC3800@linux.vnet.ibm.com> <20170109231501.xrhwsv46mznw3kqt@pd.tnic> <20170109233204.GG3800@linux.vnet.ibm.com> <20170109234039.mfefmv5dv4shxnfn@pd.tnic> <20170109235211.yetponvbexvalkir@pd.tnic> <CAJZ5v0gRYcC5fJZF207iyehvPR9_2zqprSvWHA_Qt93W9njqAw@mail.gmail.com> <20170110022338.GJ3800@linux.vnet.ibm.com> <1AE640813FDE7649BE1B193DEA596E886CE286C3@SHSMSX101.ccr.corp.intel.com> <20170110055129.GK3800@linux.vnet.ibm.com>
User-agent: NeoMutt/20161014 (1.7.1)

On Mon, Jan 09, 2017 at 09:51:29PM -0800, Paul E. McKenney wrote:
> Definitely.

Btw, we have more breakage from RCU expedited using workqueues:
https://bugzilla.kernel.org/show_bug.cgi?id=192111

I've added you to CC but let me have other bug reporters confirm reverting

  8b355e3bc140 ("rcu: Drive expedited grace periods from workqueue")

does fix the issue for them too.

Thanks.

-- 
Regards/Gruss,
    Boris.

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Follow-Ups:
- Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel
  - From: Paul E. McKenney

References:
- Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel
  - From: Borislav Petkov
- Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel
  - From: Paul E. McKenney
- Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel
  - From: Borislav Petkov
- Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel
  - From: Paul E. McKenney
- Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel
  - From: Borislav Petkov
- Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel
  - From: Borislav Petkov
- Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel
  - From: Rafael J. Wysocki
- Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel
  - From: Paul E. McKenney
- RE: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel
  - From: Zheng, Lv
- Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel
  - From: Paul E. McKenney

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