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From: Jiaxun Yang <jiaxun.yang@flygoat.com>
To: Matt Turner <mattst88@gmail.com>
Cc: "linux-mips@vger.kernel.org" <linux-mips@vger.kernel.org>,
	"Huacai Chen" <chenhc@lemote.com>,
	"Paul Burton" <paul.burton@mips.com>,
	LKML <linux-kernel@vger.kernel.org>,
	系统-王洪虎 <wanghonghu@loongson.cn>,
	"Paul Hua" <paul.hua.gm@gmail.com>,
	wangxuerui@qiniu.com
Subject: Re: [PATCH 00/13] Modernize Loongson64 Machine
Date: Wed, 18 Sep 2019 08:33:48 +0800
Message-ID: <0491a5e9-1113-046d-b455-cd54f8cc8651@flygoat.com> (raw)
In-Reply-To: <CAEdQ38EbtBsmAU0D8VtNkp=AMLo9XN43v3-OaEN-2n6zfGDMkw@mail.gmail.com>



14:30, 2019年9月12日, Matt Turner <mattst88@gmail.com>:

    On Tue, Aug 27, 2019 at 1:53 AM Jiaxun Yang <jiaxun.yang@flygoat.com
    <mailto:jiaxun.yang@flygoat.com>> wrote:

          Loongson have a long history of contributing their code to
        mainline kernel.
          However, it seems like recent years, they are focusing on
        maintain a kernel by themselves
          rather than contribute there code to the community.

Hi Matt:

    Do you know more about this? I have a Loongson 3A3000 system that I
    have never been able to make stable. I tried pulling patches out of
    the glibc, binutils, gcc, and Linux repos I found at
    https://github.com/loongson-community but my system still hardlocks,

What's the behaviour of hardlock? Kernel RCU stall? Or simply no response?

    preventing me from doing much of anything with it.

    Do we know why critical looking toolchain patches like "Added misses
    sync in mips_process_sync_loop for add sync before ll sc" [0] and "Fix

LLSC fixes have been mainlined in latest binutils.
And GCC-9.1 have introduced march=gs464e for 3A3000.

    loads for Loongson3 to promoting stability" [1] have not been
    submitted upstream?

Load issue only influence specified revisions of Loongson-3A2000, your 
hardware shouldn't have that problem.

    I'm interested in supporting Loongson 3 in Gentoo, and the hardware
    that has been given to me would be extremely useful for Gentoo's MIPS
    port in general, but it's just not usable at all currently.

You can try Fedora 28 maintained by Lemote  which have been verified in 
production environment for a period 
[http://mirror.lemote.com:8000/fedora/fedora28-live/] if the hardware is 
still unstable, then it might be a memory stability issue. You can try 
to clean your DIMM solt and DDR golden finger, or even swap the memory 
module.

Btw: Xuerui Wang <wangxuerui@qiniu.com> had maintained his 3A3000 Gentoo 
port [https://github.com/xen0n/loongson-overlay] for a long time. I'll 
Cc him this email and probability he can give you further assistance.


Thanks.


    [0]
    https://github.com/longson-community/gcc/commit/e7e3b0f956929f022caa01ed25a482495b11d575
    <https://github.com/loongson-community/gcc/commit/e7e3b0f956929f022caa01ed25a482495b11d575>
    [1]
    https://github.com/loongson-community/binutils-gdb/commit/2f0e91d2af6093097202fae3adab624ffa86a156



-- 
Jiaxun Yang

      reply index

Thread overview: 73+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-27  8:52 Jiaxun Yang
2019-08-27  8:52 ` [PATCH 01/13] MIPS: Loongson64: Rename CPU TYPES Jiaxun Yang
2019-08-27  8:52 ` [PATCH 02/13] MIPS: Loongson64: Sepreate loongson2ef/loongson64 code Jiaxun Yang
2019-08-27 22:05   ` Aaro Koskinen
2019-08-28  0:37     ` Jiaxun Yang
2019-09-02 17:51       ` Aaro Koskinen
2019-08-27  8:52 ` [PATCH 03/13] MAINTAINERS: Fix entries for new loongson64 path Jiaxun Yang
2019-08-27  8:52 ` [PATCH 04/13] irqchip: Add driver for Loongson-3 I/O interrupt controller Jiaxun Yang
2019-08-27 16:45   ` Marc Zyngier
2019-08-28  0:27     ` Jiaxun Yang
2019-08-28  6:59       ` Marc Zyngier
2019-08-28 15:31         ` Jiaxun Yang
2019-08-28 16:02           ` Marc Zyngier
2019-08-27  8:52 ` [PATCH 05/13] dt-bindings: interrupt-controller: Add Loongson-3 IOINTC Jiaxun Yang
2019-08-27 13:08   ` Rob Herring
2019-08-27  8:52 ` [PATCH 06/13] irqchip: Add driver for Loongson-3 HyperTransport interrupt controller Jiaxun Yang
2019-08-27 12:53   ` Marc Zyngier
2019-08-27  8:52 ` [PATCH 07/13] dt-bindings: interrupt-controller: Add Loongson-3 HTINTC Jiaxun Yang
2019-08-27 12:49   ` Rob Herring
2019-08-27 14:08     ` Jiaxun Yang
2019-08-27  8:52 ` [PATCH 08/13] irqchip: i8259: Add plat-poll support Jiaxun Yang
2019-08-27  8:52 ` [PATCH 09/13] irqchip: mips-cpu: Convert to simple domain Jiaxun Yang
2019-08-27  8:52 ` [PATCH 10/13] MIPS: Loongson64: Drop legacy IRQ code Jiaxun Yang
2019-08-27  8:53 ` [PATCH 11/13] dt-bindings: mips: Add loongson cpus & boards Jiaxun Yang
2019-08-27 12:45   ` Rob Herring
2019-08-27 14:18     ` Jiaxun Yang
2019-08-27 20:41       ` Paul Burton
2019-08-28  0:15         ` Jiaxun Yang
2019-09-02 14:50         ` Rob Herring
2019-09-03  9:07           ` Paul Burton
2019-09-04  3:33             ` Huacai Chen
2019-08-27  8:53 ` [PATCH 12/13] MIPS: Loongson64: Add generic dts Jiaxun Yang
2019-08-27  8:53 ` [PATCH 13/13] MIPS: Loongson64: Load built-in dtbs Jiaxun Yang
2019-08-27 13:25 ` Re:[PATCH 00/13] Modernize Loongson64 Machine 陈华才
2019-08-27 14:39   ` [PATCH " Jiaxun Yang
2019-08-30  4:25 ` [PATCH v1 00/18] " Jiaxun Yang
2019-08-30  4:25   ` [PATCH v1 01/18] MIPS: Loongson64: Rename CPU TYPES Jiaxun Yang
2019-08-30  4:25   ` [PATCH v1 02/18] MIPS: Loongson64: separate loongson2ef/loongson64 code Jiaxun Yang
2019-08-30  4:25   ` [PATCH v1 03/18] MAINTAINERS: Fix entries for new loongson64 path Jiaxun Yang
2019-08-30  4:25   ` [PATCH v1 04/18] irqchip: Export generic chip domain map/unmap functions Jiaxun Yang
2019-08-30  4:25   ` [PATCH v1 05/18] irqchip: Add driver for Loongson-3 I/O interrupt controller Jiaxun Yang
2019-08-30  4:25   ` [PATCH v1 06/18] dt-bindings: interrupt-controller: Add Loongson-3 IOINTC Jiaxun Yang
2019-09-05 14:42 ` [PATCH v2 00/19] Modernize Loongson64 Machine Jiaxun Yang
2019-09-05 14:42   ` [PATCH v2 01/19] MIPS: Loongson64: Rename CPU TYPES Jiaxun Yang
2019-09-05 14:42   ` [PATCH v2 02/19] MIPS: Loongson64: separate loongson2ef/loongson64 code Jiaxun Yang
2019-09-10  0:12     ` Paul Burton
2019-09-16  2:23       ` Huacai Chen
2019-09-18  0:38       ` Jiaxun Yang
2019-09-05 14:43   ` [PATCH v2 03/19] MAINTAINERS: Fix entries for new loongson64 path Jiaxun Yang
2019-09-05 14:43   ` [PATCH v2 04/19] irqchip: Export generic chip domain map/unmap functions Jiaxun Yang
2019-09-05 14:43   ` [PATCH v2 05/19] irqchip: Add driver for Loongson-3 I/O interrupt controller Jiaxun Yang
2019-09-05 14:43   ` [PATCH v2 06/19] dt-bindings: interrupt-controller: Add Loongson-3 IOINTC Jiaxun Yang
2019-09-17 21:26     ` Rob Herring
2019-09-05 14:43   ` [PATCH v2 07/19] irqchip: Add driver for Loongson-3 HyperTransport interrupt controller Jiaxun Yang
2019-09-05 14:43   ` [PATCH v2 08/19] dt-bindings: interrupt-controller: Add Loongson-3 HTINTC Jiaxun Yang
2019-09-05 14:43   ` [PATCH v2 09/19] irqchip: i8259: Add plat-poll support Jiaxun Yang
2019-09-05 14:43   ` [PATCH v2 10/19] irqchip: mips-cpu: Convert to simple domain Jiaxun Yang
2019-09-05 14:43   ` [PATCH v2 11/19] MIPS: Loongson64: Drop legacy IRQ code Jiaxun Yang
2019-09-05 14:43   ` [PATCH v2 12/19] dt-bindings: mips: Add loongson boards Jiaxun Yang
2019-09-30 13:23     ` Rob Herring
2019-09-05 14:43   ` [PATCH v2 13/19] dt-bindings: Document loongson vendor-prefix Jiaxun Yang
2019-09-05 14:43   ` [PATCH v2 14/19] MIPS: Loongson64: Add generic dts Jiaxun Yang
2019-09-07  2:53     ` Huacai Chen
2019-09-07  3:14       ` Jiaxun Yang
2019-09-30 13:20     ` Rob Herring
2019-09-05 14:43   ` [PATCH v2 15/19] MIPS: Loongson64: Load built-in dtbs Jiaxun Yang
2019-09-05 14:43   ` [PATCH v2 16/19] GPIO: loongson: Drop Loongson-3A/3B support Jiaxun Yang
2019-09-05 14:43   ` [PATCH v2 17/19] MIPS: Loongson: Regenerate defconfigs Jiaxun Yang
2019-09-05 14:43   ` [PATCH v2 18/19] MAINTAINERS: Add new pathes to LOONGSON64 ARCHITECTURE Jiaxun Yang
2019-09-05 14:43   ` [PATCH v2 19/19] MAINTAINERS: Add myself as maintainer of LOONGSON64 Jiaxun Yang
2019-09-07  3:13   ` [PATCH v2 00/19] Modernize Loongson64 Machine Huacai Chen
2019-09-12  6:30 ` [PATCH 00/13] " Matt Turner
2019-09-18  0:33   ` Jiaxun Yang [this message]

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