[opensuse-kernel] Backport rtl8187 fixes to v2.6.27
Hi, Any chance we could backport rtl8187 fixes introduced on kernel 2.6.3.0 that fixes weak signal detection and bad performance? I've this device (0bda:8187) and running kernel 2.6.27.25-0.1-default (openSUSE 11.1), signal is at 15/100 and after a few seconds after setting it up speed drops to ~1Mbps and stays there until 'rcnetwork restart' (driver restart?). References: BNC #397641, #448017 Thanks! -- Regards, Carlos Goncalves -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org
On Mon, Aug 03, 2009 at 04:36:31PM +0100, Carlos Goncalves wrote:
Hi,
Any chance we could backport rtl8187 fixes introduced on kernel 2.6.3.0 that fixes weak signal detection and bad performance?
Which specific patches are you referring to? What git commit ids? thanks, greg k-h -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org
On Monday 03 August 2009 16:53:12 Greg KH wrote:
On Mon, Aug 03, 2009 at 04:36:31PM +0100, Carlos Goncalves wrote:
Any chance we could backport rtl8187 fixes introduced on kernel 2.6.3.0 that fixes weak signal detection and bad performance?
Which specific patches are you referring to?
What git commit ids?
I don't have the answer for both questions, but perhaps Helmut could help us here since he seems to know better. From BNC #448017 comment #13 I would say commit eb83bbf57429ab80f49b413e3e44d3b19c3fdc5a is one of the possible patches to backport. Helmut, can you please enlighten us? :-) -- Regards, Carlos Goncalves -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org
On Monday 03 August 2009 16:53:12 Greg KH wrote:
On Mon, Aug 03, 2009 at 04:36:31PM +0100, Carlos Goncalves wrote:
Any chance we could backport rtl8187 fixes introduced on kernel 2.6.3.0 that fixes weak signal detection and bad performance?
Which specific patches are you referring to?
What git commit ids?
Digging a bit on linux-2.6.30.y.git I found these two commits: - rtl8187: fix 8187B throughput regression commit 54ac218ae676931813169e0ca074aca2e4adee38 - rtl8187: Improve wireless statistics for RTL8187 commit a7db74f4be3835fd16c6c582d320f692ccccc622 Quoting commit eb83bbf57429ab80f49b413e3e44d3b19c3fdc5a message: "After reports of poor performance, a review of the latest vendor driver (rtl8187_linux_26.1025.0328.2007) for RTL8187L devices was undertaken." So I would say the possible fixes were introduced before that commit (just to help locating it) -- Regards, Carlos Goncalves -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org
On Mon, Aug 03, 2009 at 07:06:55PM +0100, Carlos Goncalves wrote:
On Monday 03 August 2009 16:53:12 Greg KH wrote:
On Mon, Aug 03, 2009 at 04:36:31PM +0100, Carlos Goncalves wrote:
Any chance we could backport rtl8187 fixes introduced on kernel 2.6.3.0 that fixes weak signal detection and bad performance?
Which specific patches are you referring to?
What git commit ids?
Digging a bit on linux-2.6.30.y.git I found these two commits:
- rtl8187: fix 8187B throughput regression commit 54ac218ae676931813169e0ca074aca2e4adee38
- rtl8187: Improve wireless statistics for RTL8187 commit a7db74f4be3835fd16c6c582d320f692ccccc622
Quoting commit eb83bbf57429ab80f49b413e3e44d3b19c3fdc5a message:
"After reports of poor performance, a review of the latest vendor driver (rtl8187_linux_26.1025.0328.2007) for RTL8187L devices was undertaken."
So I would say the possible fixes were introduced before that commit (just to help locating it)
Well, can you test this kind of thing out on a 2.6.27-based kernel to verify that it does or does not solve the issue? thanks, greg k-h -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org
On Monday 03 August 2009 22:33:33 Greg KH wrote:
On Mon, Aug 03, 2009 at 07:06:55PM +0100, Carlos Goncalves wrote:
On Monday 03 August 2009 16:53:12 Greg KH wrote:
On Mon, Aug 03, 2009 at 04:36:31PM +0100, Carlos Goncalves wrote:
Any chance we could backport rtl8187 fixes introduced on kernel 2.6.3.0 that fixes weak signal detection and bad performance?
Which specific patches are you referring to?
What git commit ids?
Digging a bit on linux-2.6.30.y.git I found these two commits:
- rtl8187: fix 8187B throughput regression commit 54ac218ae676931813169e0ca074aca2e4adee38
- rtl8187: Improve wireless statistics for RTL8187 commit a7db74f4be3835fd16c6c582d320f692ccccc622
Quoting commit eb83bbf57429ab80f49b413e3e44d3b19c3fdc5a message:
"After reports of poor performance, a review of the latest vendor driver (rtl8187_linux_26.1025.0328.2007) for RTL8187L devices was undertaken."
So I would say the possible fixes were introduced before that commit (just to help locating it)
Well, can you test this kind of thing out on a 2.6.27-based kernel to verify that it does or does not solve the issue?
Tried on a running openSUSE 11.2 M4 LiveCD (kernel 2.6.30.2) and had the same issue after a while, but only once for the time spent testing it. As soon as M5 (kernel 2.6.31) gets released I will give it another try. Changed my router's wireless bit rate from 'auto' to 24Mbps and has been running 100% fine so far. Thanks. -- Regards, Carlos Goncalves -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org
participants (2)
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Carlos Goncalves -
Greg KH