[PATCH v2] RISC-V: Enable the IPI before workqueue_online_cpu()

patchwork-bot+linux-riscv at kernel.org patchwork-bot+linux-riscv at kernel.org
Thu Aug 1 09:40:37 PDT 2024


Hello:

This patch was applied to riscv/linux.git (fixes)
by Palmer Dabbelt <palmer at rivosinc.com>:

On Wed, 17 Jul 2024 11:17:14 +0800 you wrote:
> Sometimes the hotplug cpu stalls at the arch_cpu_idle() for a while after
> workqueue_online_cpu(). When cpu stalls at the idle loop, the reschedule
> IPI is pending. However the enable bit is not enabled yet so the cpu stalls
> at WFI until watchdog timeout. Therefore enable the IPI before the
> workqueue_online_cpu() to fix the issue.
> 
> Fixes: 63c5484e7495 ("workqueue: Add multiple affinity scopes and interface to select them")
> Signed-off-by: Nick Hu <nick.hu at sifive.com>
> 
> [...]

Here is the summary with links:
  - [v2] RISC-V: Enable the IPI before workqueue_online_cpu()
    https://git.kernel.org/riscv/c/3908ba2e0b24

You are awesome, thank you!
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