[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

4.13 without modifications: http://paste.ubuntu.com/25499163/ scp (cubic) ➜ /tmp scp testfile srv:/tmp testfile

[Kernel-packages] [Bug 1670706] Re: Kernel Call Trace After Disabling an ath10k Wireless Device (Atheros QCA6174 802.11ac (rev 32))

This is the most heavily loaded configuration I use with this device and I don't have issues with either an NVMe SSD or GPU. No hardware-related issues with any USB devices (data goes through PCIe in the end). ➜ ~ lspci -v -t -[:00]-+-00.0 Intel Corporation Device 5910

[Kernel-packages] [Bug 1670706] Re: Kernel Call Trace After Disabling an ath10k Wireless Device (Atheros QCA6174 802.11ac (rev 32))

I did get a lot of corrected PCIe errors previously which is why I set pcie_aspm=off (otherwise it flooded my kernel log instantly) https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1687714 https://launchpadlibrarian.net/318000853/dmesg_pcie_aspm_rc8.log I need to think of a good test for

[Kernel-packages] [Bug 1670706] Re: Kernel Call Trace After Disabling an ath10k Wireless Device (Atheros QCA6174 802.11ac (rev 32))

I don't have a special wireless off/on button on my keyboard but I'm assuming rfkill will do (soft kill switch). The issue does not get triggered by the following loop (I may leave it for several hours to get a better picture and modify to wait more intelligently): ➜ ~ while

[Kernel-packages] [Bug 1670706] Re: Kernel Call Trace After Disabling an ath10k Wireless Device (Atheros QCA6174 802.11ac (rev 32))

** Attachment added: "ath10k-repro4.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1670706/+attachment/4943912/+files/ath10k-repro4.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1670706] Re: Kernel Call Trace After Disabling an ath10k Wireless Device (Atheros QCA6174 802.11ac (rev 32))

Got a repro on 4.13.0-041300rc7 with the debug mask above set. ** Attachment added: "ath10k-repro3.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1670706/+attachment/4942967/+files/ath10k-repro3.log -- You received this bug notification because you are a member of Kernel

[Kernel-packages] [Bug 1705493] Re: [4.4][backport] Multiple partitions are not supported on a bcache device

SRU request thread: https://lists.ubuntu.com/archives/kernel-team/2017-July/086054.html -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1705493 Title: [4.4][backport] Multiple

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

Eric, I should have tried cubic in the previous (#46) test - quite an interesting result: http://paste.ubuntu.com/25200234/ (6 tests cubic & bbr) lspci | grep QCA 3b:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 32) With cubic cwnd grows quite quickly

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

Eric, the UDP measurement was to provide a rough estimate of what the AP is capable of sustaining without congestion control and flow control. I did not have a different card at hand, but right now I can provide a similar measurement for comparison with the problematic card: $ lspci | grep Wire

[Kernel-packages] [Bug 1705493] Re: [4.4][backport] Multiple partitions are not supported on a bcache device

ubuntu@maas-xenial5:~$ uname -r 4.4.0-87-generic ubuntu@maas-xenial5:~$ sudo gdisk /dev/bcache0 GPT fdisk (gdisk) version 1.0.1 Partition table scan: MBR: not present BSD: not present APM: not present GPT: not present Creating new GPT entries. Command (? for help): ? b back up

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

Likewise, on a non-congested network (802.11ac), directly from the laptop to the AP: uname -r 4.13.0-rc1 ➜ linux git:(5771a8c08880) ✗ cat /proc/sys/net/ipv4/tcp_congestion_control bbr ➜ linux git:(5771a8c08880) ✗ iperf3 -u -b 1000M -c rtr Connecting to host rtr, port 5201 [ 4] local

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

I've built a 4.13-rc1 (5771a8c08880) kernel and have done some laptop (4.13, bbr) <-> AP <-> laptop (4.4 cubic) tests. Not sure about the AP and there is a fair amount of wireless devices on the network I was connected to. Most of them have Cubic congestion control but I am not sure how fair they

[Kernel-packages] [Bug 1705493] [NEW] [4.4][backport] Multiple partitions are not supported on a bcache device

Public bug reported: Support for adding partitions on bcache devices only landed in 4.10: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b8c0d911ac5285e6be8967713271a51bdc5a936a Although it is a small change, it is not backported to any of the xenial kernels and

[Kernel-packages] [Bug 1670706] Re: Kernel Call Trace After Disabling an ath10k Wireless Device

** Attachment added: "dmesg-4.12-custom-ath10k-repro3.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1670706/+attachment/4915613/+files/dmesg-4.12-custom-ath10k-repro3.log ** Changed in: linux (Ubuntu) Status: Expired => New ** Summary changed: - Kernel Call Trace After

[Kernel-packages] [Bug 1670706] Re: Kernel Call Trace After Disabling an ath10k Wireless Device

Still getting the same on the released 4.12 kernel. Observations this time: * Within a good range of an access point * No power events (haven't closed a lid or anything like that) * No high load no the wireless card [12920.203097] usbcore: registered new interface driver snd-usb-audio

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

4.12 + the first change from https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1670041/comments/33 + 802.11ac network => looks better. ➜ linux git:(6f7da290413b) ✗ git --no-pager diff diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 4858e190f6ac..abcfecfb8bbe 100644 ---

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

Tested with http://kernel.ubuntu.com/~jsalisbury/lp1670041/ on a 2.4 GHz network. iperf3: interrupt - the client has terminated ➜ ~ uname -r 4.10.0-26-generic # UDP ➜ ~ iperf3 -u -b 1000M -c Connecting to host , port 5201 [ 4] local 172.29.10.20 port 37973 connected to port 5201 [ ID]

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

Eric, I will try to test it on Monday as I have a pretty slow uplink where I am currently. Hopefully, I will get back to my 5 GHz network on Thursday to do a proper comparison with the data I had before. Thanks a lot for the feedback and suggestions - really appreciate it! -- You received

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

acelankao, In 1692836 the same hack mentioned by Kalle was applied. I am not sure it is a proper fix though as it has not landed upstream: http://elixir.free- electrons.com/linux/latest/source/drivers/net/wireless/ath/ath10k/mac.c#L4181 -- You received this bug notification because you are a

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

Joseph, No luck on 4.12.0-041200rc4-generic, unfortunately: https://paste.ubuntu.com/24826561/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1670041 Title: Poor performance of Atheros

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

** Description changed: + Update (2017-05-20): + Kalle Valo suggested a hack which increased client -> AP TCP performance - so it does not look like a firmware issue as I thought originally, rather an ath10k driver issue: +

[Kernel-packages] [Bug 1679823] Re: bond0: Invalid MTU 9000 requested, hw max 1500 with kernel 4.8 / 4.10 in XENIAL LTS

Sorry about the confusion: the commits are tagged with -53 and I mentioned -52 in the apt output. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1679823 Title: bond0: Invalid MTU 9000

[Kernel-packages] [Bug 1679823] Re: bond0: Invalid MTU 9000 requested, hw max 1500 with kernel 4.8 / 4.10 in XENIAL LTS

Hi, Guys, it should be there for both the Yakkety kernel and linux-generic- hwe-16.04: http://kernel.ubuntu.com/git/ubuntu/ubuntu- xenial.git/commit/?id=7570ffb5145abf4413421c154077bc31abad1264 http://kernel.ubuntu.com/git/ubuntu/ubuntu-

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

Tested the patched kernel - the results are consistent now across laptop -> server, server -> laptop tests for both TCP and UDP. ➜ ~ uname -a Linux blade 4.10.0-20-generic #22~lp1670041 SMP Fri May 5 18:23:15 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux 4 tests: 1) laptop -> server via AP (TCP); 2)

[Kernel-packages] [Bug 1521173] Re: AER: Corrected error received: id=00e0

Eudald, I am sure. Tested multiple times. # edit /etc/default/grub sudo update-grub sudo shutdown -r now and you should be good. https://www.kernel.org/doc/Documentation/admin-guide/kernel- parameters.txt pcie_aspm= [PCIE] Forcibly enable or disable PCIe Active State Power

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

Hi, just a quick update: I have not forgotten about trying out the new kernel. I am currently geographically far away from the access point that I used for testing and it is hard to find 802.11ac Wi-Fi in the wild. I will provide the test results once I get to the right environment. -- You

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

Thanks Joseph! I will try it out. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1670041 Title: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535) Status in

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

Kalle, The chip firmware was a guess based upon somebody else's feedback: http://lists.infradead.org/pipermail/ath10k/2016-January/006714.html It might not be true at all and I have done some investigation after creating this bug report a month ago. My notes from back then: - iperf tcp vs udp

[Kernel-packages] [Bug 1687714] Re: Unless pcie_aspm is disabled, the kernel log is filled with "PCIe Bus Error: severity=Corrected, type=Data Link Layer, id=00e5(Transmitter ID)" messages

Joseph, I did (the log rotated so you don't see the version number): https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1687714/+attachment/4870948/+files/dmesg_pcie_aspm_rc8.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux

[Kernel-packages] [Bug 1687714] Re: Unless pcie_aspm is disabled, the kernel log is filled with "PCIe Bus Error: severity=Corrected, type=Data Link Layer, id=00e5(Transmitter ID)" messages

Reproduced on 4.8-36-generic (the log has rotated due to the volume of messages so the kernel version message is not there). ** Attachment added: "pcie_aspm_4.8.0-36-generic.log"

[Kernel-packages] [Bug 1687714] Re: Unless pcie_aspm is disabled, the kernel log is filled with "PCIe Bus Error: severity=Corrected, type=Data Link Layer, id=00e5(Transmitter ID)" messages

Reproduced on 4.8-36-generic (the log has rotated due to the volume of messages so the kernel version message is not there). ** Attachment added: "pcie_aspm_4.8.0-36-generic.log"

[Kernel-packages] [Bug 1687714] Re: Unless pcie_aspm is disabled, the kernel log is filled with "PCIe Bus Error: severity=Corrected, type=Data Link Layer, id=00e5(Transmitter ID)" messages

Hi Joseph, Not a regression. I installed Zesty while it was in beta on this machine and an issue was there already. Tried 4.8 on a live usb - had that issue as well. This is a relatively new hw so 4.4 kernel was not possible to boot properly. -- You received this bug notification because you

[Kernel-packages] [Bug 1687714] Re: Unless pcie_aspm is disabled, the kernel log is filled with "PCIe Bus Error: severity=Corrected, type=Data Link Layer, id=00e5(Transmitter ID)" messages

This is most likely a duplicate of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1521173 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1687714 Title: Unless pcie_aspm is

[Kernel-packages] [Bug 1687714] [NEW] Unless pcie_aspm is disabled, the kernel log is filled with "PCIe Bus Error: severity=Corrected, type=Data Link Layer, id=00e5(Transmitter ID)" messages

Public bug reported: The kernel log is constantly filled with the following: 236.912499] pcieport :00:1c.5: AER: Corrected error received: id=00e5 [ 236.912545] pcieport :00:1c.5: PCIe Bus Error: severity=Corrected, type=Data Link Layer, id=00e5(Transmitter ID) [ 236.912553]

[Kernel-packages] [Bug 1521173] Re: AER: Corrected error received: id=00e0

I have the same issue on the Razer Blade 2017 - the kernel log is flooded with messages. Disabling PCIe Active State Power Management helps: GRUB_CMDLINE_LINUX_DEFAULT="quiet button.lid_init_state=open pcie_aspm=off" Tested that on 4.11.0-041100rc8-generic. ** Attachment added:

[Kernel-packages] [Bug 1670706] Re: Kernel Call Trace After Disabling an ath10k Wireless Device

Reproduced on 4.10.0-11-generic after a long period of laptop inactivity (see traces at the bottom). https://paste.ubuntu.com/24184748/ Tried to unload and reload modules afterwards: [99449.709484] ath10k_pci :3b:00.0: failed to read device register, device is gone [99449.709487]

[Kernel-packages] [Bug 1670706] Re: Kernel Call Trace After Disabling an ath10k Wireless Device

Cannot reliably reproduce it even on the same kernel - will keep trying. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1670706 Title: Kernel Call Trace After Disabling an ath10k

[Kernel-packages] [Bug 1670706] [NEW] Kernel Call Trace After Disabling an ath10k Wireless Device

Public bug reported: Disabled a wireless adapter via NetworkManager. Got a kernel trace in dmesg. 3b:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 32) uname -r 4.10.0-9-generic https://paste.ubuntu.com/24131142/ There are also usb hot-plug messages

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

dima@blade:~$ uname -r 4.11.0-041100rc1-generic dima@blade:~$ dpkg -l linux-firmware Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

Confirmed *NFA364xp.bin and qca61x4_2_2.bin usage by Windows. linux- firmware's version is definitely not up-to-date for this card as it refers to NFA324i (see the paste link). ** Attachment added: ".inf file parsed by Windows"

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

** Description changed: - I experience a very poor 802.11ac performance of a QCA6174 Wireless card - (Killer Wireless 1535). + Update: added some forensics in the paste (a long read): + http://paste.ubuntu.com/24118478/ + + TL;DR with a bit of intuition: + We need a new firmware-5.bin from

[Kernel-packages] [Bug 1670041] Re: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

Just to rule out the case of bad compatibility between the STA on the router (Quantenna QSR1000 chipset, QT3840BC SoC in case of my RT-87U) and the client WNIC I also checked with a different STA. So the second router's 802.11ac hardware is Compex_WLE900VX Qualcomm Atheros QCA9880 (V2) which uses

[Kernel-packages] [Bug 1670041] [NEW] Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535)

Public bug reported: I experience a very poor 802.11ac performance of a QCA6174 Wireless card (Killer Wireless 1535). This is a dev version of Zesty with a recently released 4.10 kernel: uname -r 4.10.0-9-generic dpkg -l linux-firmware | grep ii ii linux-firmware 1.163all

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