From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org, Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: Re: [PATCH master] common: misc: do not run pollers inside panic()
Date: Mon, 01 Jul 2024 14:11:06 +0200 [thread overview]
Message-ID: <171983586644.1493916.13211587647238402962.b4-ty@pengutronix.de> (raw)
In-Reply-To: <20240620125829.550300-1-a.fatoum@pengutronix.de>
On Thu, 20 Jun 2024 14:58:29 +0200, Ahmad Fatoum wrote:
> When panic() is not configured to hang, it will wait 100 ms for messages
> to go out before trying to poweroff or reset the machine.
>
> The wait is implemented using udelay(), which runs pollers if the delay
> duration exceeds 100 us. This is a bad idea as it needlessly exposes
> barebox to hang indefinitely if the driver that's being polled had
> something to do with why we ended up in the panic in the first place.
>
> [...]
Applied, thanks!
[1/1] common: misc: do not run pollers inside panic()
https://git.pengutronix.de/cgit/barebox/commit/?id=b026cd03f940 (link may not be stable)
Best regards,
--
Sascha Hauer <s.hauer@pengutronix.de>
prev parent reply other threads:[~2024-07-01 12:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-20 12:58 Ahmad Fatoum
2024-07-01 12:11 ` Sascha Hauer [this message]
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