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[Bug 1017471] Kernel 4.9.0-2 network issue
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Sun, 29 Jan 2017 22:48:09 +0000
  • Message-id: <bug-1017471-21960-zMEqA3F2XW@http.bugzilla.opensuse.org/>
http://bugzilla.opensuse.org/show_bug.cgi?id=1017471
http://bugzilla.opensuse.org/show_bug.cgi?id=1017471#c11

--- Comment #11 from H. Zeng <zhx@xxxxxxxxx> ---
I just tried kernel-default-4.10.rc5. It looks like the situation is the same
as that with kernel 4.9.5:
- Default parameters will not work
- Set `fwlps=0` make it work but with around 10% package loss when pinging
local router
* Signal strength is -52dBm.

TL;DR
=====
1. Install and boot into kernel-default-4.10.rc5-2.1.gc67d673
2. Remove custom options for rtl8192ce /etc/modprobe.d/rtl8192ce.conf
3. Reload module rtl8192ce
4. Results:
Pinging router gets,
`--- 192.168.1.1 ping statistics ---
1000 packets transmitted, 907 received, 9% packet loss, time 1003724ms
rtt min/avg/max/mdev = 0.766/380.730/4612.383/563.338 ms, pipe 5`

But a second round could not finish because of error of "Network is
unreachable".
`--- 192.168.1.1 ping statistics ---
1000 packets transmitted, 342 received, 65% packet loss, time 1033262ms
rtt min/avg/max/mdev = 1.009/716.540/4104.929/748.872 ms, pipe 5`

And the connection could not resume because of "IP configuration is
unavailable".

This looks just the same as previous situation.

`dmesg` shows (mac address replaced with <MAC>), See Comment 10.

5. After setting custom option `ips=0`, the wireless connection works.

`--- 192.168.1.1 ping statistics ---
1000 packets transmitted, 916 received, 8% packet loss, time 1003449ms
rtt min/avg/max/mdev = 0.809/359.046/3953.933/531.613 ms, pipe 4`

And second round gets,
`--- 192.168.1.1 ping statistics ---
979 packets transmitted, 866 received, 11% packet loss, time 982401ms
rtt min/avg/max/mdev = 0.843/305.538/3589.854/525.753 ms, pipe 4`

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