Bug 92151 - WiFi hiccup / lag with Kernel 3.18 and RTL8188CE
Summary: WiFi hiccup / lag with Kernel 3.18 and RTL8188CE
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: network-wireless (show other bugs)
Hardware: x86-64 Linux
: P1 normal
Assignee: drivers_network-wireless@kernel-bugs.osdl.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-01-27 14:45 UTC by Jack
Modified: 2015-01-28 21:26 UTC (History)
3 users (show)

See Also:
Kernel Version: 3.18
Subsystem:
Regression: No
Bisected commit-id:


Attachments

Description Jack 2015-01-27 14:45:19 UTC
Distribution: Arch Linux
Hardware: Realtek RTL8188CE (WiFi-Controller)

I have a really weird hiccup issue with Kernel 3.18. For example when I ping a hardwired device in my network, every few seconds it takes a tremendous amount of time to receive/send. See the output of ping: http://pastebin.com/FKKfvE7G (BTW, the same occurs when pinging google.com)
Running processes: http://pastebin.com/SWtVTTrP

This issue does also exist in other usecases, such as web surfing, gaming etc.
The issue does not exist in Windows 8 (on the same hardware).

After downgrading Arch Linux to Kernel 3.17.6, the problem was resolved.

PS: I hope I posted this in the correct section.
Comment 1 Jack 2015-01-27 14:55:12 UTC
Also please see this reddit thread: http://redd.it/2t37ko
Comment 2 Stan 2015-01-27 15:06:38 UTC
Possibly related bug:
https://bugzilla.kernel.org/show_bug.cgi?id=92161
Comment 3 Larry Finger 2015-01-27 16:58:42 UTC
There are a number of bugs in 3.18.0 that are resolved in later upddates. The last of these will be in 3.18.4 that should be out soon.

Does 3.18.4 help?
Comment 4 Larry Finger 2015-01-27 17:01:21 UTC
This bug is not related to 92161 - that is a different issue.

Could someone change the status to "needinfo" from the OP? My account does not have sufficient privilege.
Comment 5 Jack 2015-01-27 18:31:46 UTC
(In reply to Larry Finger from comment #4)
> Could someone change the status to "needinfo" from the OP? My account does
> not have sufficient privilege.
What info do you need?
(First bug report here, I'm a bit of a noob :-) )
Comment 6 Jack 2015-01-27 18:43:32 UTC
This is (most likely) the same issue: https://bugzilla.kernel.org/show_bug.cgi?id=90571
Comment 7 Larry Finger 2015-01-27 23:54:59 UTC
There is a question in comment 3. The needinfo is with regard to that query.

I agree that 90571 is probably the same bug.
Comment 8 Jack 2015-01-28 21:26:22 UTC
(In reply to Larry Finger from comment #3)

> Does 3.18.4 help?

In 3.18.4-1-ARCH the issue seems to be fixed.
(There are still occasional hiccups, although I think those are because other devices are also using WiFi)

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