cvs commit: src/sys/dev/bge if_bge.c

John Baldwin jhb at
Thu Sep 29 11:07:02 PDT 2005

On Thursday 29 September 2005 01:49 pm, Nate Lawson wrote:
> 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?  :)

It's in my head.  I think I need to rework the suspend/resume support in the 
x86 interrupt code to instead of doing all the interrupt sources, having the 
atpic and apic code register pic devices in a separate list that gets 
iterated on suspend and resume.

John Baldwin <jhb at>  <><
"Power Users Use the Power to Serve"  =

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