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From: linux@horizon.com
To: rmk+lkml@arm.linux.org.uk
Cc: linux-kernel@vger.kernel.org
Subject: Re: 8250 serial console fixes -- issue
Date: 3 Feb 2006 05:00:47 -0500	[thread overview]
Message-ID: <20060203100047.19337.qmail@science.horizon.com> (raw)

>>  - 'r' option has insanely slow CTS timeout. So if a
>>    terminal server is inactive the kernel can take
>>    30 minutes to boot as each character write to the
>>    serial console requires a CTS timeout.
>
> You'd rather we threw away these messages?

It seems to me that The Right Thing to do is, once I've given up on
CTS showing up and just sent the byte anyway, is send all future bytes
without waiting for CTS until CTS shows up again.

In other words, one timeout per falling edge of CTS.

This may be implementable neatly by just saying "fuck it; pretend CTS
is asserted" in the timeout handler if the later real assertion won't
confuse it.

             reply	other threads:[~2006-02-03 10:00 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-02-03 10:00 linux [this message]
  -- strict thread matches above, loose matches on Subject: below --
2006-02-02  1:21 Kumar Gala
2006-02-02  1:47 ` Alan Cox
2006-02-02  5:54   ` Kumar Gala
2006-02-02  8:05     ` Kumar Gala
2006-02-02 17:10       ` Kumar Gala
2006-02-03  1:58   ` Glen Turner
2006-02-03  9:40     ` Russell King
2006-02-03 14:27       ` Glen Turner
2006-02-03 16:02         ` Russell King
2006-02-03 17:08           ` Glen Turner
2006-02-03 22:23             ` Russell King
2006-02-04 11:15               ` Russell King
2006-02-04 16:18               ` Krzysztof Halasa
2006-02-04 23:16                 ` Russell King
2006-02-04 23:54                   ` Krzysztof Halasa
2006-02-05  0:00                     ` Russell King
2006-02-05 12:57                       ` Krzysztof Halasa
2006-02-03 17:46           ` Krzysztof Halasa
2006-02-03 22:13             ` Russell King
2006-02-04 16:08               ` Krzysztof Halasa
2006-02-04 23:20                 ` Russell King
2006-02-05  3:12                   ` Glen Turner
2006-02-05 21:26                     ` Krzysztof Halasa
2006-02-06  9:47                     ` Russell King
2006-02-07  3:27                       ` Glen Turner
2006-02-03 15:05       ` Kumar Gala
2006-02-06 20:26       ` Pavel Machek
2006-02-06 20:55         ` Russell King
2006-02-07  4:00           ` Glen Turner
2006-02-07  9:18           ` Pavel Machek
2006-02-07 17:43             ` Russell King
2006-02-07 22:23               ` Krzysztof Halasa
2006-02-08  0:59               ` Junio C Hamano
2006-02-08  1:19                 ` Lee Revell

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