cvs commit: src/sys/dev/bge if_bge.c
jhb at FreeBSD.org
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 FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
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