From: Aurelien Jarno <aurelien@aurel32.net>
To: linux-riscv@lists.infradead.org
Subject: Fail to bring hart online on HiFive Unleashed
Date: Thu, 3 Oct 2019 22:07:35 +0200 [thread overview]
Message-ID: <20191003200735.GA26760@aurel32.net> (raw)
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
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
--
Aurelien Jarno GPG: 4096R/1DDD8C9B
aurelien@aurel32.net http://www.aurel32.net
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next reply other threads:[~2019-10-03 20:07 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-03 20:07 Aurelien Jarno [this message]
2019-10-03 23:13 ` Fail to bring hart online on HiFive Unleashed Atish Patra
2019-10-03 23:16 ` Troy Benjegerdes
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
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