Re: [Bug 1779817] Re: r8169 no internet after suspending

2018-09-14 Thread Steve Dodd
New bug report opened:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1792635

On 14 September 2018 at 21:29, Steve Dodd  wrote:
> Well 4.15.0-35.38 doesn't even finish booting on my machine. Doesn't
> find the root volume and the USB keyboard doesn't finish booting.
> Chances are the r8169 fix is fine but I can't test.
>
> On 14 September 2018 at 18:02, Brad Figg  wrote:
>> This bug is awaiting verification that the kernel in -proposed solves
>> the problem. Please test the kernel and update this bug with the
>> results. If the problem is solved, change the tag 'verification-needed-
>> bionic' to 'verification-done-bionic'. If the problem still exists,
>> change the tag 'verification-needed-bionic' to 'verification-failed-
>> bionic'.
>>
>> If verification is not done by 5 working days from today, this fix will
>> be dropped from the source code, and this bug will be closed.
>>
>> See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
>> to enable and use -proposed. Thank you!
>>
>>
>> ** Tags added: verification-needed-bionic
>>
>> --
>> You received this bug notification because you are subscribed to the bug
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>> https://bugs.launchpad.net/bugs/1779817
>>
>> Title:
>>   r8169 no internet after suspending
>>
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Re: [Bug 1779817] Re: r8169 no internet after suspending

2018-09-14 Thread Steve Dodd
Well 4.15.0-35.38 doesn't even finish booting on my machine. Doesn't
find the root volume and the USB keyboard doesn't finish booting.
Chances are the r8169 fix is fine but I can't test.

On 14 September 2018 at 18:02, Brad Figg  wrote:
> This bug is awaiting verification that the kernel in -proposed solves
> the problem. Please test the kernel and update this bug with the
> results. If the problem is solved, change the tag 'verification-needed-
> bionic' to 'verification-done-bionic'. If the problem still exists,
> change the tag 'verification-needed-bionic' to 'verification-failed-
> bionic'.
>
> If verification is not done by 5 working days from today, this fix will
> be dropped from the source code, and this bug will be closed.
>
> See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
> to enable and use -proposed. Thank you!
>
>
> ** Tags added: verification-needed-bionic
>
> --
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> https://bugs.launchpad.net/bugs/1779817
>
> Title:
>   r8169 no internet after suspending
>
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Re: [Bug 1779817] Re: r8169 no internet after suspending

2018-08-24 Thread Steve Dodd
Yup, this kernel finally fixes things for me too (I did remember to
disable my other workaround) - thanks Kai, look forward to seeing it
SRU'd.

On 24 August 2018 at 09:39, Jan Rathmann  wrote:
> Kai-Heng, the bug seems to be gone on my system with your newest kernel
> in #63 and I don't experience any regression so far. Thanks for your
> work!
>
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Re: [Bug 1779817] Re: r8169 no internet after suspending

2018-08-13 Thread Steve Dodd
Can we cherry-pick
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/commit/?id=7c53a722459c1d6ffb0f5b2058c06ca8980b8600
for bionic?

On 10 August 2018 at 12:49, Heiner Kallweit <1779...@bugs.launchpad.net>
wrote:

> @Steve, there's some resistance amongst kernel maintainers against
> additional module parameters. Each new parameter increases complexity and
> makes maintenance harder.
> Most likely it would result in a NAK when trying to fix an issue with one
> broken exotic (sorry..) system in the kernel, especially if a userspace
> workaround is available (disabling MSI via sysfs for the network device).
>
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Re: [Bug 1779817] Re: r8169 no internet after suspending

2018-08-09 Thread Steve Dodd
@Heiner, I know a number of other modules have a "use_msi_x" option - I
guess that would be too much to ask given I'm the only one who seems to
need it so far? :)

On 9 August 2018 at 16:54, David Jordan  wrote:

> I can reproduce the issue with ethernet failing on the r8169 on resume
> from suspend with the current kernel.  This is a regression since a
> previous kernel on 18.04 since the symptoms occur after installing
> updates.
>
> I can also confirm that Kai's kernel seems to fix ethernet after suspend
> on at least one of our products.  Will do more testing, but this would
> be very good to get into the next bionic kernel update.
>
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Re: [Bug 1779817] Re: r8169 no internet after suspending

2018-08-09 Thread Steve Dodd
It's was only Kai's kernel from comment #39 that didn't boot - I've not had
any other problems on that front.

On 9 August 2018 at 12:05, Heiner Kallweit <1779...@bugs.launchpad.net>
wrote:

> Whether other systems suffer from the same MSI-X incompatability we'll
> know only once I get more such bug reports. So far your report is the
> only one.
>
> You said if MSI-X is enabled it doesn't even boot. Any error message or
> does it just silently stop?
>
> And no, I'm not aware of any way to disable MSI-X only. The kernel
> treats it as a sub-feature of MSI, therefore functions like
> pci_dev_msi_enabled() return true if MSI or MSI-X is active for a
> device.
>
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Re: [Bug 1779817] Re: r8169 no internet after suspending

2018-08-09 Thread Steve Dodd
Just double-checked with lspci -vvv and indeed the Realtek NIC is the only
MSI-X capable device. Is there anyway to disable MSI-X globally but leave
MSI on? All I can find is pci=nomsi which seems a bit heavy handed..

On 9 August 2018 at 10:08, Steve Dodd  wrote:

> Yup, afraid so, Beelink S1: https://www.amazon.co.uk/dp/B077HKCT78 - I'm
> basically using it as an old-fashioned X Terminal. They promised a BIOS
> update to "make it work with Linux" but I never got it to install and they
> stopped answering my emails :( Happy to put it down to broken hardware so
> long as I have a workaround, but is there anything else we can check to
> confirm that? No noticeable problems with any other part of the system,
> bit I guess everything else is part of the SoC, so this is probably the
> only PCIe device I'm actually using..
>
> On 9 August 2018 at 09:47, Heiner Kallweit <1779...@bugs.launchpad.net>
> wrote:
>
>> Good that it's fixed for you. Indeed your BIOS seems to be broken with
>> regard to MSI-X. According to the vendor part of the MAC address your
>> mini PC is some no-name China product?
>>
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Re: [Bug 1779817] Re: r8169 no internet after suspending

2018-08-09 Thread Steve Dodd
Yup, afraid so, Beelink S1: https://www.amazon.co.uk/dp/B077HKCT78 - I'm
basically using it as an old-fashioned X Terminal. They promised a BIOS
update to "make it work with Linux" but I never got it to install and they
stopped answering my emails :( Happy to put it down to broken hardware so
long as I have a workaround, but is there anything else we can check to
confirm that? No noticeable problems with any other part of the system, bit
I guess everything else is part of the SoC, so this is probably the only
PCIe device I'm actually using..

On 9 August 2018 at 09:47, Heiner Kallweit <1779...@bugs.launchpad.net>
wrote:

> Good that it's fixed for you. Indeed your BIOS seems to be broken with
> regard to MSI-X. According to the vendor part of the MAC address your
> mini PC is some no-name China product?
>
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Re: [Bug 1779817] Re: r8169 no internet after suspending

2018-08-08 Thread Steve Dodd
Hmm, no "IOMMU" messages in dmesg, and the CPU is supposed to support it,
so I guess it is disabled,
however this machine really doesn't have a BIOS to speak of, in terms of
configurable settings anyway :(

On 8 August 2018 at 14:42, Heiner Kallweit <1779...@bugs.launchpad.net>
wrote:

> One more hint: I found few reports where people had problems
> (independent of what is being discussed here) with MSI-X when VT-d is
> disabled in the BIOS. Could you check this as well?
>
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Re: [Bug 1779817] Re: r8169 no internet after suspending

2018-08-08 Thread Steve Dodd
I'm about to dash out, but will try the above change later. Meanwhile,
relevant bits of dmesg:

[4.440185] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[4.445120] r8169 :01:00.0: enabling device ( -> 0003)
[4.458178] r8169 :01:00.0 eth0: RTL8168g/8111g at 0x
(ptrval), 84:39:be:67:5d:2f, XID 0c000800 IRQ 125
[4.458181] r8169 :01:00.0 eth0: jumbo features [frames: 9200 bytes,
tx checksumming: ko]

lspci:

00:00.0 Host bridge: Intel Corporation Celeron N3350/Pentium N4200/Atom
E3900 Series Host Bridge (rev 0b)
..
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c

The box itself is an Apollo Lake SoC fanless mini PC, if that helps..?

On 8 August 2018 at 14:19, Heiner Kallweit <1779...@bugs.launchpad.net>
wrote:

> Apart from switching to a more up-to-date API after this commit MSI-X
> will be used if available. Maybe your system has a problem with MSI-X.
> If you keep the commit and just do the following change, does it fix the
> issue?
>
> Replace
> flags = PCI_IRQ_ALL_TYPES;
> with
> flags = PCI_IRQ_LEGACY | PCI_IRQ_MSI;
>
> Also it would be important to know which exact chip version you have.
> Can you provide a full dmesg output?
>
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Re: [Bug 1779817] Re: r8169 no internet after suspending

2018-08-07 Thread Steve Dodd
I can't even boot Kai's latest kernel! The system hard locks early in the
boot process, I have tried blacklisting r8169 and rebuilding the initramfs,
pretty sure it is not loaded by the point at which it hangs. My hardware is
cursed...

On 7 August 2018 at 21:13, Jan Rathmann  wrote:

> @Kai-Heng
> I can confirm what Erik says - my network card seems to come up properly
> after suspend with the backported kernel in #39.
>
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Re: [Bug 1779817] Re: r8169 no internet after suspending

2018-08-03 Thread Steve Dodd
I still think there are multiple bugs here. Some of us have a network that
absolutely will not come back up after suspend with kernel version
>4.15.0-23, even after reloading the driver. So there is a very clear
regression that I would really like see resolved / rolled back. Breaking
stuff in an LTS release for multiple users isn't much fun :(

On 3 August 2018 at 10:45, Jan Rathmann  wrote:

> Ok, I can confirm what I wrote on #28 on another installation.
>
> Very hard for me to tackle this down - since bisecting obviously didn't
> work.
>
> Here is a summary of what I found out about this bug:
>
> - Artful (or any other previous Ubuntu version) was not affected (at least
> not to that extend, see below).
> - Debian 9 is also not affected.
> - On previous Ubuntu versions, I could observe something regarding
> networking and suspend, that may also be a bug, but had a much less severe
> impact on daily usage: In ~1 out of 10 cases, the network connection was
> down after suspend, but it could be relatively easily be enabled again by
> deactivating the network and activating it again (either via graphical
> NetworkManager-icon or via terminal commands 'nmcli networking off|on').
> The difference to the current bug is that it was not necessary to reload
> the kernel driver.
>
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