v4.8-rc: GSM audio causes trouble

v4.8-rc: GSM audio causes trouble

[Pavel Machek]

Hi!

I was trying to improve GSM call quality, and hit problems in
v4.8-rc. Sound only worked for a while, then I tried to kill
cmtspeech_ofono_test, and could not, not even with -9 and could not
even reboot.

I went back to v4.1 (ok, quite far, I see), and problems are gone.

Does it work for you? Any ideas what to try... besides bisect?

Best regards,
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Re: v4.8-rc: GSM audio causes trouble

[Pavel Machek]

Hi!

> I was trying to improve GSM call quality, and hit problems in
> v4.8-rc. Sound only worked for a while, then I tried to kill
> cmtspeech_ofono_test, and could not, not even with -9 and could not
> even reboot.
> 
> I went back to v4.1 (ok, quite far, I see), and problems are gone.
> 
> Does it work for you? Any ideas what to try... besides bisect?

v4.7 is okay.

v4.8 with

git diff ..mini-v4.7 drivers/hsi/ | git apply

Seems to work ok.

Best regards,
								Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Re: v4.8-rc: GSM audio causes trouble

[Sebastian Reichel]

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Hi,

On Thu, Sep 15, 2016 at 10:51:42PM +0200, Pavel Machek wrote:
> > I was trying to improve GSM call quality, and hit problems in
> > v4.8-rc. Sound only worked for a while, then I tried to kill
> > cmtspeech_ofono_test, and could not, not even with -9 and could not
> > even reboot.
> > 
> > I went back to v4.1 (ok, quite far, I see), and problems are gone.
> > 
> > Does it work for you? Any ideas what to try... besides bisect?
> 
> v4.7 is okay.
> 
> v4.8 with
> 
> git diff ..mini-v4.7 drivers/hsi/ | git apply
> 
> Seems to work ok.
> 
> Best regards,

hsi changes from 4.7 to 4.8 are basically runtime PM enablement.
Does 4.8 work for you with just 9c99e5e51988 reverted?

-- Sebastian

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Re: v4.8-rc: GSM audio causes trouble

[Pavel Machek]

On Thu 2016-09-15 22:51:42, Pavel Machek wrote:
> Hi!
> 
> > I was trying to improve GSM call quality, and hit problems in
> > v4.8-rc. Sound only worked for a while, then I tried to kill
> > cmtspeech_ofono_test, and could not, not even with -9 and could not
> > even reboot.
> > 
> > I went back to v4.1 (ok, quite far, I see), and problems are gone.
> > 
> > Does it work for you? Any ideas what to try... besides bisect?
> 
> v4.7 is okay.
> 
> v4.8 with
> 
> git diff ..mini-v4.7 drivers/hsi/ | git apply

I believe I tried just reverting
9c99e5e51988798af2a687ef9b1716dd79388550 before, but that did not
help.

I guess I'll try with these reverted, next:

pavel@amd:/data/l/linux-n900$ git show
9c99e5e51988798af2a687ef9b1716dd79388550 | git apply -R
pavel@amd:/data/l/linux-n900$ git show
ad60db2f9fe3367e60a21fc0afe19999516f8b27 | git apply -R
pavel@amd:/data/l/linux-n900$ git show
4e552310cdf0c81210b5fc9173f7cf497eeb9feb | git apply -R
pavel@amd:/data/l/linux-n900$ git show
604fdfa45886f04ad6070c1b8266c7f4154bc497 | git apply -R
pavel@amd:/data/l/linux-n900$ git show
d2b8d695c61c4d2864eee900bebc2ced4f425645 | git apply -R
pavel@amd:/data/l/linux-n900$ git show
fa1572d956ee072e965da01d2c46f10d2b67d017 | git apply -R
pavel@amd:/data/l/linux-n900$ git show
62aa292b3eae920a80c2fd0ed0601a70328627f6 | git apply -R
pavel@amd:/data/l/linux-n900$

...seems to be broken already. I guess its time to
bisect... hmm. Tried bisecting, but soundcard does not work
there. Will do it manually...

Best regards,
							Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Re: v4.8-rc: GSM audio causes trouble

[Pavel Machek]

On Fri 2016-09-16 07:52:50, Sebastian Reichel wrote:
> Hi,
> 
> On Thu, Sep 15, 2016 at 10:51:42PM +0200, Pavel Machek wrote:
> > > I was trying to improve GSM call quality, and hit problems in
> > > v4.8-rc. Sound only worked for a while, then I tried to kill
> > > cmtspeech_ofono_test, and could not, not even with -9 and could not
> > > even reboot.
> > > 
> > > I went back to v4.1 (ok, quite far, I see), and problems are gone.
> > > 
> > > Does it work for you? Any ideas what to try... besides bisect?
> > 
> > v4.7 is okay.
> > 
> > v4.8 with
> > 
> > git diff ..mini-v4.7 drivers/hsi/ | git apply
> > 
> > Seems to work ok.

Hmm. I guess I made some error with the testing, because reverting
just drivers/hsi to v4.7 state results in non-compiling kernel

> hsi changes from 4.7 to 4.8 are basically runtime PM enablement.
> Does 4.8 work for you with just 9c99e5e51988 reverted?

No, according to the notes. But see above... and let me retry with
drivers/hsi _and_ include/linux/hsi reverted. No GSM audio and same
problem with shutdown. Oops. Sorry about the confusion.

Does it work for you? Any ideas what could be wrong?

Best regards,

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html