From: Pavel Machek <pavel@ucw.cz>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>,
torvalds@linux-foundation.org,
kernel list <linux-kernel@vger.kernel.org>,
linux-usb@vger.kernel.org, gregkh@linuxfoundation.org,
bhelgaas@google.com, linux-pci@vger.kernel.org
Subject: Re: v4.10-rc8 (-rc6) boot regression on Intel desktop, does not boot after cold boots, boots after reboot
Date: Thu, 23 Feb 2017 19:40:13 +0100 [thread overview]
Message-ID: <20170223184013.GA5177@amd> (raw)
In-Reply-To: <20170223162825.GA16646@lerouge>
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On Thu 2017-02-23 17:28:26, Frederic Weisbecker wrote:
> On Tue, Feb 14, 2017 at 08:27:43PM +0100, Pavel Machek wrote:
> > On Tue 2017-02-14 18:59:56, Pavel Machek wrote:
> > > Hi!
> > >
> > > > > > > Hmm. I moved keyboard between USB ports, and now 4.10-rc6 no longer
> > > > > > > boots. v4.6 works ok. Let me try with keyboard unplugged... no, I
> > > > > > > could not get it to work. I believe v4.9 and some v4.10-rc's worked,
> > > > > > > but I'll have to double check.
> > > > > >
> > > > > > But all the kernel versions worked when the keyboard was plugged into
> > > > > > its original USB port?
> > > > >
> > > > > Aha. So it looks difference is probably in "where is keyboard plugged
> > > > > in" but in "reboot" vs. "cold boot". I did not do a cold boot in quite
> > > > > a while :-(.
> > > > >
> > > > > Booting to grub, then hitting ctrl-alt-del is enough to make it work. Ouch.
> > > > >
> > > > > It happens with current Linus' tree.
> > > >
> > > > v4.10-rc6-feb3 : broken
> > > > v4.9 : ok
> > > > (v4.6 : ok)
> > >
> > > Hmm. It hangs during PCI fixups, and it hangs in v4.10-rc8, too.
> > >
> > > With debug patch below, I get
> > >
> > > ...1d.7: PCI fixup... pass 2
> > > ...1d.7: PCI fixup... pass 3
> > > ...1d.7: PCI fixup... pass 3 done
> > >
> > > ...followed by hang. So yes, it looks USB related.
> > >
> > > (Sometimes it hangs with some kind backtrace involving secondary CPU
> > > startup, unfortunately useful info is off screen at that point).
> >
> > Forgot to say, 1d.7 is EHCI controller.
> >
> > 00:1d.7 USB controller: Intel Corporation NM10/ICH7 Family USB2 EHCI
> > Controller (rev 01)
>
> Ok, I should have access soon to a EeePc 1015CX (which seem to have this controller).
> I hope I'll be able to reproduce the issue there. If not, I'm sorry but I'll have to
> burden you again :-)
Go through more mails. It is only reproducible after cold boot. .. so
I doubt it will be easy to reproduce on another machine.
Now... I do have serial port, and I even might have serial cable
somewhere, but.... Giving how sensitive it is, it is probably going to
go away with console on ttyS...
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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next prev parent reply other threads:[~2017-02-23 18:40 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-03 19:04 v4.10-rc6 boot regression on Intel desktop, maybe related to EHCI hadnoff? Pavel Machek
2017-02-03 19:21 ` Alan Stern
2017-02-03 20:51 ` v4.10-rc6 boot regression on Intel desktop, does not boot after cold boots, boots after reboot Pavel Machek
2017-02-03 21:18 ` Pavel Machek
2017-02-03 21:59 ` Alan Stern
2017-02-03 22:43 ` Pavel Machek
2017-02-04 8:48 ` Pavel Machek
2017-02-04 16:52 ` Pavel Machek
2017-02-12 12:00 ` Pavel Machek
2017-02-14 17:59 ` v4.10-rc8 (-rc6) " Pavel Machek
2017-02-14 19:27 ` Pavel Machek
2017-02-14 19:54 ` Alan Stern
2017-02-23 16:28 ` Frederic Weisbecker
2017-02-23 18:40 ` Pavel Machek [this message]
2017-02-25 3:28 ` Frederic Weisbecker
2017-03-18 14:42 ` Frederic Weisbecker
2017-04-03 15:38 ` Frederic Weisbecker
2017-04-03 18:20 ` Pavel Machek
2017-04-12 15:08 ` Frederic Weisbecker
2017-04-15 21:34 ` Pavel Machek
2017-04-20 14:52 ` Frederic Weisbecker
[not found] ` <CA+55aFyYAztA+Onquy9ODeC9_YBL_fXAd-RgeUVUhpsjK81ZVQ@mail.gmail.com>
[not found] ` <CA+55aFxU1D0hAPJuhkKaFBByi=8vpw7dJUX=FfpoqnZLWsvxig@mail.gmail.com>
[not found] ` <CA+55aFwt6pbt2STzRh1yCdoo7AnCLFqnPkkrYk4_BGFuvT2VCw@mail.gmail.com>
[not found] ` <CA+55aFzMiXXw9gqNCMCSc+O5HfcqWHXfqbdtbvcOmAHM9_wNig@mail.gmail.com>
[not found] ` <CA+55aFxuXgsCyMgrRDHdM6BQaej68QoU8TwdM=3LYu9LMBf4fQ@mail.gmail.com>
2017-02-15 17:23 ` Pavel Machek
2017-02-15 23:20 ` Pavel Machek
2017-02-15 23:34 ` Linus Torvalds
2017-02-16 11:11 ` Pavel Machek
2017-02-16 17:25 ` Pavel Machek
2017-02-16 18:13 ` Frederic Weisbecker
2017-02-16 18:20 ` Linus Torvalds
2017-02-16 18:34 ` Frederic Weisbecker
2017-02-16 19:34 ` Thomas Gleixner
2017-02-16 20:06 ` Pavel Machek
2017-02-16 20:21 ` Linus Torvalds
2017-02-16 20:48 ` Pavel Machek
2017-02-18 8:55 ` Pavel Machek
2017-02-17 1:11 ` Greg Kroah-Hartman
2017-02-17 14:04 ` Frederic Weisbecker
2017-02-17 16:37 ` Thomas Gleixner
2017-02-17 17:05 ` Pavel Machek
2017-02-17 18:43 ` Frederic Weisbecker
2017-02-18 9:39 ` next_tick hang was " Pavel Machek
2017-02-18 14:50 ` Frederic Weisbecker
2017-02-18 18:05 ` Pavel Machek
2017-02-20 14:05 ` Frederic Weisbecker
[not found] ` <20170218102339.GA3544@amd>
2017-02-22 3:08 ` Frederic Weisbecker
2017-02-23 14:22 ` Pavel Machek
2017-02-16 19:06 ` Pavel Machek
2017-02-17 14:40 ` Frederic Weisbecker
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