Date: Fri, 31 Aug 2012 14:14:37 +0000 From: Alexey Dokuchaev <danfe@FreeBSD.org> To: Warner Losh <imp@bsdimp.com> Cc: bz@FreeBSD.org, mobile@freebsd.org, Hans Petter Selasky <hans.petter.selasky@bitfrost.no> Subject: Re: suspend/resume [was: Devsummit pictures] Message-ID: <20120831141437.GA7316@FreeBSD.org> In-Reply-To: <5583C09D-C3D1-4E88-AC77-3E44D420C2EB@bsdimp.com> References: <alpine.BSF.2.00.1208310944290.76284@ai.fobar.qr> <zarafa.50408dde.053d.62c781ff44a4c94b@eric2.bitfrost> <20120831104038.GA69581@FreeBSD.org> <5583C09D-C3D1-4E88-AC77-3E44D420C2EB@bsdimp.com>
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On Fri, Aug 31, 2012 at 07:58:36AM -0600, Warner Losh wrote: > On Aug 31, 2012, at 4:40 AM, Alexey Dokuchaev wrote: > > On Fri, Aug 31, 2012 at 12:11:42PM +0200, Hans Petter Selasky wrote: > >>> and then new USB stack had broken it again for me (NEC Versa S950, YMMV). > >> > >> Should be fixed in all -stable with regard to USB and suspend and resume. > > > > To be fair to Hans Petter, maybe his USB stack itself does not have a bug, > > but instead uncovers a bug somewhere else. OTOH, my laptop does not care. > > You can determine if it is the usb stack by removing it and trying again. Actually I did. Resume was still broken. But backing out r229370 (only USB-related changes) fixes the hang. I am puzzled... And while keyboard does not work in general, tty switching does. > If possible, a serial console will tell you for sure... Serial console is practically useless if you have to work via USB-RS232 adapter. "call doadump" also hangs. So it looks like I have to find firewire machine, revive attilio@'s netdump [1] code, or implement phk@'s soundcard tricks. ./danfe [1] http://lists.freebsd.org/pipermail/freebsd-current/2010-October/020405.html
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