Re: [PATCH] i486 CR4 oops, no_console_suspend

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From: H. Peter Anvin

Subject: Re: [PATCH] i486 CR4 oops, no_console_suspend

Date: Tuesday, August 19, 2008 - 9:07 am

Ingo Molnar wrote:
quoted text> 
> i've had trouble no end with getting even kernel messages out to the 
> serial console during critical phases of suspend/resume. (especially in 
> combination with earlyprintk=ttyS0 - not surprisingly)
> 
> Especially during resume the UART is initialized back to something 
> really slow - 300 bauds or 9600 bauds. (depends on the chipset i guess) 
> So even though it works, it will only worked reliably when i 
> standardized all my baud settings to that very low setting.
> 

Probably depends on the BIOS, actually; I suspect you end up with the 
standard BIOS setting, which is *usually* 9600 bps.

	-hpa
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Messages in current thread:

[PATCH] Fix i486 suspend to disk CR4 oops, David Fries, (Sun Aug 17, 9:03 pm)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, Maciej W. Rozycki, (Sun Aug 17, 9:14 pm)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, H. Peter Anvin, (Sun Aug 17, 9:35 pm)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, Andi Kleen, (Sun Aug 17, 11:04 pm)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, H. Peter Anvin, (Sun Aug 17, 11:34 pm)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, Ingo Molnar, (Sun Aug 17, 11:41 pm)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, Andi Kleen, (Sun Aug 17, 11:42 pm)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, H. Peter Anvin, (Sun Aug 17, 11:45 pm)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, Pavel Machek, (Mon Aug 18, 2:15 am)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, Rafael J. Wysocki, (Mon Aug 18, 3:16 am)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, David Fries, (Mon Aug 18, 5:58 am)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, Ingo Molnar, (Mon Aug 18, 6:25 am)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, Maciej W. Rozycki, (Mon Aug 18, 7:38 am)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, Maciej W. Rozycki, (Mon Aug 18, 7:41 am)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, Dave Jones, (Mon Aug 18, 8:24 am)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, Lennart Sorensen, (Mon Aug 18, 9:04 am)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, Dave Jones, (Mon Aug 18, 10:17 am)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, H. Peter Anvin, (Mon Aug 18, 10:32 am)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, Pavel Machek, (Mon Aug 18, 3:02 pm)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, Pavel Machek, (Mon Aug 18, 3:04 pm)

Re: [PATCH] Fix i486 suspend to disk CR4 oops, H. Peter Anvin, (Mon Aug 18, 3:10 pm)

Re: [PATCH] i486 CR4 oops, no_console_suspend, David Fries, (Mon Aug 18, 8:37 pm)

Re: [PATCH] i486 CR4 oops, no_console_suspend, Ingo Molnar, (Tue Aug 19, 2:34 am)

Re: [PATCH] i486 CR4 oops, no_console_suspend, H. Peter Anvin, (Tue Aug 19, 9:07 am)

Re: [PATCH] i486 CR4 oops, no_console_suspend, David Fries, (Wed Aug 20, 9:17 pm)

Re: [PATCH] i486 CR4 oops, no_console_suspend, H. Peter Anvin, (Wed Aug 20, 10:37 pm)


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