Re: patch: fix 30 second hang while resuming
From: Nate Lawson (nate_at_root.org)
Date: 02/28/05
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Date: Sun, 27 Feb 2005 17:59:51 -0800 To: Garance A Drosihn <drosih@rpi.edu>
Garance A Drosihn wrote:
> At 3:19 PM -0800 2/27/05, Nate Lawson wrote:
>
>> Poul-Henning Kamp wrote:
>>
>>>
>>> Have you tried sos@ new ATAng mk III patches ? As far as I know
>>> he plans to commit those shortly.
>
> One minor point: Søren is on vacation right now. I *think* he will
> be getting back around March 5th (assuming I understand what he said
> in a recent message). So, *if* this is something we want to get in
> before the code-freeze, we may have to act without his input.
Augh. Not the most convenient circumstances. I'm happy to work with
someone else if necessary.
>> Not yet. In any case, I'd prefer these problems be fixed before
>> the import since the patches are minor and data corruption is
>> generally a bad thing for a little while even if a large, new
>> something is coming sometime soon.
>
> Your original message only mentioned a long-delay when resuming.
> Is this bug also causing data-corruption in some circumstances?
> (I don't have the slightest idea what this area of code does, I
> just want to make sure we understand how serious the issue is...).
>
> Is this something which only comes up in 6.x? Or is the same
> thing happening in 5.x too?
There are two bugs I sent in two separate messages. The first gives
several overwrites of 512 bytes of memory adjacent to the ATA param
structure. The second is just a very long delay on resume. The first
is more serious and could occur on different hardware although I think
only systems with the "phantom slave" problem will trigger it. It makes
booting with INVARIANTS panic immediately and causes an indeterminant
problem without. The previous time this bug appeared, it was pretty
nasty -- inserting a PCMCIA card would give a panic or at some point the
ifnet list would be corrupted. I don't know the effect this time.
-- Nate _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
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