Date: Fri, 23 Apr 2004 14:43:22 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: jhb@FreeBSD.org Cc: current@FreeBSD.org Subject: Re: HEADS UP: PCI Chnages Message-ID: <20040423.144322.115909342.imp@bsdimp.com> In-Reply-To: <200404231118.11833.jhb@FreeBSD.org> References: <20040422163451.C1D365D07@ptavv.es.net> <200404231118.11833.jhb@FreeBSD.org>
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In message: <200404231118.11833.jhb@FreeBSD.org>
John Baldwin <jhb@FreeBSD.org> writes:
: On Thursday 22 April 2004 12:34 pm, Kevin Oberman wrote:
: > Well, things seem to have deteriorated slightly with Warner's recen=
t PCI
: > changes (backing out much of the PCI power stuff).
: >
: > 1. I have both my hard disks and floppies. Thanks Warner and S=F8re=
n!
: >
: > 2. USB still works and recovers after a resume!
: >
: > 3. Sound is again playing too fast after resume. ICH audio is rever=
ting
: > to its native speed. With the PCI power stuff in there, it worke=
d just
: > fine. (It was nice while it lasted.) I suspect this will return =
when
: > Warner gets a few rough edges off of the PCI code.
: >
: > 4. After a resume, the shared PCI interrupt stops being delivered a=
fter
: > a LONG time interval. I've had it fail in 10 minutes, but it is =
more
: > likely to die after about an hour. It always dies in under 2 hou=
rs.
: >
: > vmstat -i looks completely normal except that the count for irq 11 =
never
: > increases. All other interrupts and devices are fine. Is this a loc=
king
: > problem? Should I put WITNESS back in my kernel? I can't find any s=
ign
: > of any significant resource being exhausted. If you ignore the fact=
that
: > all devices on irq 11 are dead, the system continues to run just fi=
ne. X
: > is alive and the box seems completely normal. (Of course, USB, the
: > network cards, and sound are completely gone.) System has neither =
SMP
: > or APIC in the kernel.
: >
: > I'd love to track this down. I have no idea how common it is,
: > either. Since most people running CURRENT are not using suspend on =
their
: > laptops because of various problems except to test things, this mig=
ht
: > not have shown up for most people. (Or, it might be unique to the I=
BM
: > T30.)
: >
: > Thanks,
: =
: We probably just need to reprogram the PCI link devices on resume. A=
re you =
: using ACPI? The non-ACPI case I know doesn't do this yet.
We aren't doing that at the moment. I have some changes in my tree,
but there are issues with ndis not working quite right yet :-(
Warner
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