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Date:      Thu, 29 Sep 2005 10:49:18 -0700
From:      Nate Lawson <nate@root.org>
To:        John Baldwin <jhb@FreeBSD.org>
Cc:        cvs-src@FreeBSD.org, src-committers@FreeBSD.org, Pawel Jakub Dawidek <pjd@FreeBSD.org>, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/dev/bge if_bge.c
Message-ID:  <433C291E.3050409@root.org>
In-Reply-To: <200509291054.40587.jhb@FreeBSD.org>
References:  <20050928192056.B7E6D16A42B@hub.freebsd.org> <20050928193833.GA1235@garage.freebsd.pl> <433AFEDE.2000902@root.org> <200509291054.40587.jhb@FreeBSD.org>

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John Baldwin wrote:
> On Wednesday 28 September 2005 04:36 pm, Nate Lawson wrote:
>>I've heard disabling apic helps T42s, otherwise they get a hard hang.
>>It's difficult to print the driver progress while suspending because the
>>function call stack is recursive, not iterative.  For example,
>>root_suspend -> pci_suspend -> fxp_suspend -> mii_suspend (if that
>>exists).  You'd have to add a printf in every driver and bus.  A better
>>way might be to add printf or KTR to bus_generic_suspend() to print the
>>device name before calling its method.
>>
>>BTW, I'm working on committing a patch that adds KTR to acpi so we can
>>track down issues like this although the device suspending stuff should
>>be done separately as listed above.
> 
> 
> BTW, the issue with APIC on some systems is that when we use the APIC, the 
> current code doesn't end up doing suspend/resume for the ATPIC and so it ends 
> up in some random state.
> 

Ah, is a fix for that upcoming?  :)

-- 
Nate



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