Re: [PATCH 4.19 130/133] printk: queue wake_up_klogd irq_work only if per-CPU areas are ready

From: Sergey Senozhatsky
Date: Mon Jul 20 2020 - 22:03:29 EST


On (20/07/21 00:05), Pavel Machek wrote:
> > From: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
> >
> > commit ab6f762f0f53162d41497708b33c9a3236d3609e upstream.
> >
[..]
>
> Is this still needed in 4.19? 1b710b1b10ef was reverted in 4.19, so
> there should not be any user-visible problems...

printk_deferred() is still broken and we had similar bug reports which
where not caused by 1b710b1b10ef

-ss