From: Troy Benjegerdes <troy.benjegerdes@sifive.com>
To: "aurelien@aurel32.net" <aurelien@aurel32.net>
Cc: Atish Patra <Atish.Patra@wdc.com>,
"linux-riscv@lists.infradead.org"
<linux-riscv@lists.infradead.org>
Subject: Re: Fail to bring hart online on HiFive Unleashed
Date: Thu, 3 Oct 2019 18:16:59 -0500 [thread overview]
Message-ID: <5B6E4372-FA11-4B41-9CDD-D9C31F4C80BB@sifive.com> (raw)
In-Reply-To: <73a9ba9fd6c29075209a61660137fb4b899f7ff2.camel@wdc.com>
Does the same problem occur if you write this file to an SDcard and set the switches to load the (legacy) machine-mode HiFive u-boot as FSBL?
https://github.com/sifive/freedom-u-sdk/releases/download/hifiveu-2.0-alpha-2/hifive-unleashed-a00-2019-03-22.gpt
> On Oct 3, 2019, at 6:13 PM, Atish Patra <Atish.Patra@wdc.com> wrote:
>
> On Thu, 2019-10-03 at 22:07 +0200, Aurelien Jarno wrote:
>> Hi all,
>>
>> I have just upgraded the bootloaders and kernel on an HiFive
>> Unleashed
>> board to:
>> - OpenSBI v0.4-50-g30f09fb
>> - U-Boot 2019.10-rc4
>> - Linux v5.3.2
>>
>> Most of the time, the kernel only brings online 3 of the 4 RV64GC
>> harts:
>>> # getconf _NPROCESSORS_CONF
>>> 4
>>> # getconf _NPROCESSORS_ONLN
>>> 3
>>
>> This can also be seen in /proc/cpuinfo:
>>
>>> processor : 0
>>> hart : 1
>>> isa : rv64imafdc
>>> mmu : sv39
>>> uarch : sifive,u54-mc
>>>
>>> processor : 1
>>> hart : 2
>>> isa : rv64imafdc
>>> mmu : sv39
>>> uarch : sifive,u54-mc
>>>
>>> processor : 3
>>> hart : 4
>>> isa : rv64imafdc
>>> mmu : sv39
>>> uarch : sifive,u54-mc
>>
>> When it happens, the kernel logs contain:
>>
>>> [ 0.049851] smp: Bringing up secondary CPUs ...
>>> [ 1.082530] CPU2: failed to come online
>>> [ 1.086267] smp: Brought up 1 node, 3 CPUs
>>
>
> The log is aligned with the outcome. CPU2 never came up within 1 second
> for some reason. How often do you see this ?
>
> I tried couple of times and did not see this issue. Here is the log
>
> OpenSBI v0.4-50-g30f09fbfd1ec (Oct 3 2019 14:03:20)
> U-Boot 2019.10-rc4-00023-g72efcc8f00fc (Oct 03 2019 - 14:03:12 -0700)
> Linux version 5.4.0-rc1-00004-gecd4522e3e09
>
> Here is the bootlog.
> https://paste.fedoraproject.org/paste/-gr1Zeg4~UBs~bqIPraJwA
>
> If this issue is reliably reproducible, here are some areas to dbeug.
>
> 1. __cpu_up() in smpboot.c has a 1sec timeout for each cpu to come up.
>
> You can increase that time just to make sure that it's not a hardware
> issue.
>
> or
>
> 2. Put some debug prints in U-boot/OpenSBI to confirm that all 4 harts
> did come up at each layer.
>
> You can also just use kernel image directly FW_PAYLOAD_PATH in OpenSBI
> to avoid U-boot. That may give a clue if it is a U-boot issue or not.
>
>> I have also seen the issue with CPU1 but not with CPU3 and CPU4
>> (might
>> be a statistical effect).
>>
>> Any idea what could be the issue?
>>
>
>
>> Thanks,
>> Aurelien
>>
>
> --
> Regards,
> Atish
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
next prev parent reply other threads:[~2019-10-03 23:17 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-03 20:07 Fail to bring hart online on HiFive Unleashed Aurelien Jarno
2019-10-03 23:13 ` Atish Patra
2019-10-03 23:16 ` Troy Benjegerdes [this message]
2019-10-05 10:25 ` Aurelien Jarno
2019-10-05 10:54 ` Aurelien Jarno
2019-10-06 12:28 ` Aurelien Jarno
2019-10-07 22:19 ` Atish Patra
2019-10-08 4:30 ` Aurelien Jarno
2019-10-08 6:14 ` David Abdurachmanov
2019-10-08 6:33 ` Aurelien Jarno
2019-10-08 7:17 ` Anup Patel
2019-10-08 22:21 ` Troy Benjegerdes
2019-10-10 19:59 ` Aurelien Jarno
2019-10-11 14:05 ` David Abdurachmanov
2019-10-09 1:34 ` Atish Patra
2019-10-10 19:58 ` Aurelien Jarno
2019-10-15 21:38 ` Auer, Lukas
2019-10-15 22:22 ` Aurelien Jarno
2019-10-16 20:49 ` Auer, Lukas
2019-10-17 15:45 ` David Abdurachmanov
2019-10-17 20:42 ` Aurelien Jarno
2019-10-20 18:57 ` Auer, Lukas
2019-10-08 7:06 ` Anup Patel
2019-10-14 9:23 ` Andreas Schwab
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5B6E4372-FA11-4B41-9CDD-D9C31F4C80BB@sifive.com \
--to=troy.benjegerdes@sifive.com \
--cc=Atish.Patra@wdc.com \
--cc=aurelien@aurel32.net \
--cc=linux-riscv@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).