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In-Reply-To: From: Lei Yu Date: Wed, 23 Feb 2022 18:02:31 +0800 Message-ID: Subject: Re: New u-boot-aspeed-sdk runs slow and cause wdt2 timeout on ast2500 To: Joel Stanley Content-Type: text/plain; charset="UTF-8" X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development list for OpenBMC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ChiaWei Wang , Troy Lee , Ryan Chen , openbmc , tangyiwei.2022@bytedance.com Errors-To: openbmc-bounces+openbmc=archiver.kernel.org@lists.ozlabs.org Sender: "openbmc" > > > > Could you share us the boot log with timestamps? > > > > It would be nice to know the time elapsed at each stage. > > > > > > Pasted to https://pastebin.com/emseqW6c > > > It contains two logs, the first one is good, and the second has the issue. > > Working: > [2022-02-23 02:47:03] U-Boot 2019.04 (Jan 24 2022 - 10:18:18 +0000) > [2022-02-23 02:47:06] ## Loading kernel from FIT Image at 20100000 ... > [2022-02-23 02:47:12] Starting kernel ... > > 3 + 6 seconds. > > broken: > [2022-02-23 02:58:07] U-Boot 2019.04 (Feb 15 2022 - 07:22:14 +0000) > [2022-02-23 02:58:12] ## Loading kernel from FIT Image at 20100000 ... > [2022-02-23 02:58:22] Starting kernel ... > > 5 + 10 seconds. > > Interesting that the pre-hashing part is also slower. > > The old branch was based on v00.04.03. The new branch is based on v00.04.09. > > I wonder if this is the cause: > > $ git diff v00.04.03..v00.04.09 -- configs/evb-ast2500_defconfig > diff --git a/configs/evb-ast2500_defconfig b/configs/evb-ast2500_defconfig > index 9fcf55b05ebb..000ed3f90bdd 100644 > --- a/configs/evb-ast2500_defconfig > +++ b/configs/evb-ast2500_defconfig > @@ -1,4 +1,5 @@ > CONFIG_ARM=y > +CONFIG_SYS_DCACHE_OFF=y > CONFIG_ARCH_ASPEED=y > CONFIG_SYS_TEXT_BASE=0x0 > CONFIG_SYS_MALLOC_F_LEN=0x2000 > > Lei, can you re-test with CONFIG_SYS_DCACHE_OFF=n ? > Yiwei helped to test with CONFIG_SYS_DCACHE_OFF=n, and it works fine now. So it seems we get the root cause!