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From: Warner Losh <imp@bsdimp.com>
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Cc: freebsd-current@FreeBSD.org, freebsd-mobile@FreeBSD.org
Subject: Re: 9-stable regression: 'cbb0: Warning: Bus reset timeout'
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On May 25, 2012, at 1:53 AM, Adrian Chadd wrote:

> To respond to my own email:
>=20
> * if I unload cbb/pccard/cardbus and reload them, suddenly the slot =
works.
> * I've been toying with S3 suspend to RAM, so I wondered if it were =
that.
>=20
> Yes, it seems to be suspend related. I'll do some more thorough
> testing tomorrow, but once I suspend, the ath(4) NIC gets detached
> from the cardbus slot, then upon resume the NIC isn't found (bus
> timeout) and won't be until I unload/reload the modules.
>=20
> Should pccard/cbb/cardbus 'properly' handle S3 suspend/resume? Does it
> work for anyone else?

Once upon a time, it worked just fine.  But that was before the long, =
dark winter of my laptops not suspending, so maybe something got broken =
along the way.

Warner