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From: Efraim Flashner <efraim@flashner.co.il>
To: Mike Gerwitz <mtg@gnu.org>
Cc: 34176-done@debbugs.gnu.org
Subject: bug#34176: X200 kernel panic on S3 resume (linux-libre > 4.18.9)
Date: Wed, 23 Jan 2019 11:55:31 +0200	[thread overview]
Message-ID: <20190123095531.GC6135@macbook41> (raw)
In-Reply-To: <87y37boqhk.fsf@gnu.org>

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On Wed, Jan 23, 2019 at 01:08:39AM -0500, Mike Gerwitz wrote:
> Well, I'm not getting those hours of my life back.
> 
> On Wed, Jan 23, 2019 at 00:58:57 -0500, Mike Gerwitz wrote:
> > usb usb3: root hub lost power or was reset
> 
> [...]
> 
> > uhci_hcd 0000:00:1d.0: host controller process error, something bad happened!
> > uhci_hcd 0000:00:1d.0: host controller halted, very bad!
> > uhci_hcd 0000:00:1d.0: HC died; cleaning up
> 
> [...]
> 
> > (Which is indeed true for my hub 0000:00:1d.0, which is usb6, according
> > to dmesg.)
> 
> Right after sending this message, I recalled that I used powertop to do
> "auto tuning".  Sure enough, one of the lines was this:
> 
>    Good          Autosuspend for USB device UHCI Host Controller [usb6]
> 
> By disabling it, it runs this command:
> 
>   echo on > /sys/bus/usb/devices/usb6/power/control
> 
> And it resolves my suspend issues on 4.20.3-gnu.
> 
> What sucks even more is that I had disabled those settings on the USB
> controllers over a year ago (because it was putting my USB keyboard to
> sleep, dropping the first keypress); don't know how it got re-enabled,
> but the user is probably to blame.
> 
> Sorry for the noise, everyone.  I hope that my suffering provides some
> value to others.
> 
> This bug can be closed.

I'm glad you figured it out. Powertop is a fun beast, often with
unintended consequences.

-- 
Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
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Confidentiality cannot be guaranteed on emails sent or received unencrypted

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  reply	other threads:[~2019-01-23  9:56 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-23  5:58 bug#34176: X200 kernel panic on S3 resume (linux-libre > 4.18.9) Mike Gerwitz
2019-01-23  6:08 ` Mike Gerwitz
2019-01-23  9:55   ` Efraim Flashner [this message]
2019-01-23  9:56   ` Gábor Boskovits
2019-01-27 15:34   ` Mike Gerwitz
2019-01-28  7:12     ` Chris Marusich
2019-01-28  9:53     ` Christopher Lemmer Webber
2019-01-29 12:14     ` Mike Gerwitz
2019-01-31  4:07       ` Mike Gerwitz
2019-01-31  7:02         ` Mark H Weaver
2019-02-01  3:56           ` Mike Gerwitz
2019-05-12 14:16 ` Mike Gerwitz
2019-05-16  0:57   ` Mike Gerwitz

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