2013-01-01 00:16:27

by Hin-Tak Leung

[permalink] [raw]
Subject: rtl8187 WARN slowpath on suspend with 3.6.11

Hi,

Does either Larry or Herton see the sort of behavior (https://bugzilla.redhat.com/show_bug.cgi?id=891019) on suspend? John, is there anything changed between 3.6.9 and 3.6.11 which would cause this?

Other than a genuine kernel regression, it is possible that it might be fedora specific - I just went from F17 to F18. F18 seems to have an systemd integrated udevd which might behaves differently from the older udevd's... or general funniness with F18 (I noticed another bug https://bugzilla.redhat.com/show_bug.cgi?id=891018 but that might be unrelated).

Anyway, other than whole sale downgrade I think I can try booting 3.6.9 (which suspended cleanly under F17) and see whether it is a F18-specific problem.

Hin-Tak


2013-01-02 16:00:12

by John W. Linville

[permalink] [raw]
Subject: Re: rtl8187 WARN slowpath on suspend with 3.6.11

On Wed, Jan 02, 2013 at 03:02:27PM +0000, Hin-Tak Leung wrote:
> --- On Tue, 1/1/13, Larry Finger <[email protected]> wrote:
>
> > On 12/31/2012 06:16 PM, Hin-Tak Leung
> > wrote:
> > > Hi,
> > >
> > > Does either Larry or Herton see the sort of behavior
> > (https://bugzilla.redhat.com/show_bug.cgi?id=891019) on
> > suspend? John, is there anything changed between 3.6.9 and
> > 3.6.11 which would cause this?
> > >
> > > Other than a genuine kernel regression, it is possible
> > that it might be fedora specific - I just went from F17 to
> > F18. F18 seems to have an systemd integrated udevd which
> > might behaves differently from the older udevd's... or
> > general funniness with F18 (I noticed another bug https://bugzilla.redhat.com/show_bug.cgi?id=891018 but
> > that might be unrelated).
> > >
> > > Anyway, other than whole sale downgrade I think I can
> > try booting 3.6.9 (which suspended cleanly under F17) and
> > see whether it is a F18-specific problem.
> >
> > Hin-Tak,
> >
> > My system has never done a suspend/resume with any wireless
> > card, thus I cannot
> > check your result. The test with 3.6.9 is a good idea.
> >
> > Sorry,
> >
> > Larry
>
> Hi Larry,
>
> Thanks for the reply. I have since rebooted to 3.6.9-2.fc17.x86_64, 3.6.10-2.fc17.x86_64 as well as 3.6.9-4.fc18.x86_64, 3.6.10-5.fc18.x86_64 and 3.6.11-3.fc18.x86_64; and all have the same problem. 3.6.9-2.fc17.x86_64 was the last kernel which I ran for over two weeks and had suspended a few times according to my /var/log/messages*. So this looks like a fedora-18 specific problems brought on by changes in userland
> between F17 and F18. (possibly the systemd integrated udevd).
>
> I'll add a comment to the bug report and let John reassign as appropriate.

Thanks, Hin-Tak! I'll ask Kay to investigate.

John
--
John W. Linville Someday the world will need a hero, and you
[email protected] might be all we have. Be ready.

2013-01-01 01:30:13

by Larry Finger

[permalink] [raw]
Subject: Re: rtl8187 WARN slowpath on suspend with 3.6.11

On 12/31/2012 06:16 PM, Hin-Tak Leung wrote:
> Hi,
>
> Does either Larry or Herton see the sort of behavior (https://bugzilla.redhat.com/show_bug.cgi?id=891019) on suspend? John, is there anything changed between 3.6.9 and 3.6.11 which would cause this?
>
> Other than a genuine kernel regression, it is possible that it might be fedora specific - I just went from F17 to F18. F18 seems to have an systemd integrated udevd which might behaves differently from the older udevd's... or general funniness with F18 (I noticed another bug https://bugzilla.redhat.com/show_bug.cgi?id=891018 but that might be unrelated).
>
> Anyway, other than whole sale downgrade I think I can try booting 3.6.9 (which suspended cleanly under F17) and see whether it is a F18-specific problem.

Hin-Tak,

My system has never done a suspend/resume with any wireless card, thus I cannot
check your result. The test with 3.6.9 is a good idea.

Sorry,

Larry



2013-01-02 15:02:29

by Hin-Tak Leung

[permalink] [raw]
Subject: Re: rtl8187 WARN slowpath on suspend with 3.6.11

--- On Tue, 1/1/13, Larry Finger <[email protected]> wrote:

> On 12/31/2012 06:16 PM, Hin-Tak Leung
> wrote:
> > Hi,
> >
> > Does either Larry or Herton see the sort of behavior
> (https://bugzilla.redhat.com/show_bug.cgi?id=891019) on
> suspend? John, is there anything changed between 3.6.9 and
> 3.6.11 which would cause this?
> >
> > Other than a genuine kernel regression, it is possible
> that it might be fedora specific - I just went from F17 to
> F18. F18 seems to have an systemd integrated udevd which
> might behaves differently from the older udevd's... or
> general funniness with F18 (I noticed another bug https://bugzilla.redhat.com/show_bug.cgi?id=891018 but
> that might be unrelated).
> >
> > Anyway, other than whole sale downgrade I think I can
> try booting 3.6.9 (which suspended cleanly under F17) and
> see whether it is a F18-specific problem.
>
> Hin-Tak,
>
> My system has never done a suspend/resume with any wireless
> card, thus I cannot
> check your result. The test with 3.6.9 is a good idea.
>
> Sorry,
>
> Larry

Hi Larry,

Thanks for the reply. I have since rebooted to 3.6.9-2.fc17.x86_64, 3.6.10-2.fc17.x86_64 as well as 3.6.9-4.fc18.x86_64, 3.6.10-5.fc18.x86_64 and 3.6.11-3.fc18.x86_64; and all have the same problem. 3.6.9-2.fc17.x86_64 was the last kernel which I ran for over two weeks and had suspended a few times according to my /var/log/messages*. So this looks like a fedora-18 specific problems brought on by changes in userland
between F17 and F18. (possibly the systemd integrated udevd).

I'll add a comment to the bug report and let John reassign as appropriate.

Hin-Tak