v4.15: camera problems on n900

v4.15: camera problems on n900

[Pavel Machek]

Hi!

In v4.14, back camera on N900 works. On v4.15-rc1.. it works for few
seconds, but then I get repeated oopses.

On v4.15-rc0.5 (commit ed30b147e1f6e396e70a52dbb6c7d66befedd786),
camera does not start.	  

Any ideas what might be wrong there?
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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v4.15: camera problems on n900

[Sakari Ailus]

On Wed, Dec 27, 2017 at 10:05:43PM +0100, Pavel Machek wrote:
> Hi!
> 
> In v4.14, back camera on N900 works. On v4.15-rc1.. it works for few
> seconds, but then I get repeated oopses.
> 
> On v4.15-rc0.5 (commit ed30b147e1f6e396e70a52dbb6c7d66befedd786),
> camera does not start.	  
> 
> Any ideas what might be wrong there?

What kind of oopses do you get?

-- 
Sakari Ailus
sakari.ailus at linux.intel.com

v4.15: camera problems on n900

[Pavel Machek]

1;2802;0cOn Wed 2017-12-27 23:17:19, Sakari Ailus wrote:
> On Wed, Dec 27, 2017 at 10:05:43PM +0100, Pavel Machek wrote:
> > Hi!
> > 
> > In v4.14, back camera on N900 works. On v4.15-rc1.. it works for few
> > seconds, but then I get repeated oopses.
> > 
> > On v4.15-rc0.5 (commit ed30b147e1f6e396e70a52dbb6c7d66befedd786),
> > camera does not start.	  
> > 
> > Any ideas what might be wrong there?
> 
> What kind of oopses do you get?

They seemed to be in unrelated processes -> not useful for
debugging. I tried again, but this time it hangs, similar way to
-rc0.5. (That might be good news).

Does it work for you on N9?

Thanks,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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v4.15: camera problems on n900

[Pavel Machek]

On Wed 2017-12-27 23:17:19, Sakari Ailus wrote:
> On Wed, Dec 27, 2017 at 10:05:43PM +0100, Pavel Machek wrote:
> > Hi!
> > 
> > In v4.14, back camera on N900 works. On v4.15-rc1.. it works for few
> > seconds, but then I get repeated oopses.
> > 
> > On v4.15-rc0.5 (commit ed30b147e1f6e396e70a52dbb6c7d66befedd786),
> > camera does not start.	  
> > 
> > Any ideas what might be wrong there?
> 
> What kind of oopses do you get?

Haven't seen the oopses yet; maybe they are only on linux-next?
Anyway, bisect so far:

# bad: [fb3f95c11904adf26c2bd86fe1b1613c921710b5] Config for v4.15-rc0.5
# good: [c213cf57c2f15ee226c14dd7157caa334c3ef7c8] Make config similar to n950 case. Still works on n900.
git bisect start 'mini-v4.15' 'mini-v4.14'
# good: [06410bdec961a55e78e01d4fda199f709a84e17f] Merge /data/l/clean-cg into mini-v4.14
git bisect good 06410bdec961a55e78e01d4fda199f709a84e17f
# bad: [fc35c1966e1372a21a88f6655279361e2f92713f] Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
git bisect bad fc35c1966e1372a21a88f6655279361e2f92713f
# good: [bebc6082da0a9f5d47a1ea2edc099bf671058bd4] Linux 4.14
git bisect good bebc6082da0a9f5d47a1ea2edc099bf671058bd4
# good: [5bbcc0f595fadb4cac0eddc4401035ec0bd95b09] Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
git bisect good 5bbcc0f595fadb4cac0eddc4401035ec0bd95b09
# bad: [5b0e2cb020085efe202123162502e0b551e49a0e] Merge tag 'powerpc-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
git bisect bad 5b0e2cb020085efe202123162502e0b551e49a0e
# good: [f150891fd9878ef0d9197c4e8451ce67c3bdd014] Merge tag 'exynos-drm-next-for-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
git bisect good f150891fd9878ef0d9197c4e8451ce67c3bdd014
# good: [93ea0eb7d77afab34657715630d692a78b8cea6a] Merge tag 'leaks-4.15-rc1' of git://github.com/tcharding/linux
git bisect good 93ea0eb7d77afab34657715630d692a78b8cea6a
# bad: [2bf16b7a73caf3435f782e4170cfe563675e10f9] Merge tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
git bisect bad 2bf16b7a73caf3435f782e4170cfe563675e10f9
# good: [ef674997e49760137ca9a90aac41a9922ac399b2] media: staging: atomisp: Convert timers to use timer_setup()
git bisect good ef674997e49760137ca9a90aac41a9922ac399b2
# good: [b1cb7372fa822af6c06c8045963571d13ad6348b] dvb_frontend: don't use-after-free the frontend struct
git bisect good b1cb7372fa822af6c06c8045963571d13ad6348b


-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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v4.15: camera problems on n900

[Pavel Machek]

On Wed 2017-12-27 23:17:19, Sakari Ailus wrote:
> On Wed, Dec 27, 2017 at 10:05:43PM +0100, Pavel Machek wrote:
> > Hi!
> > 
> > In v4.14, back camera on N900 works. On v4.15-rc1.. it works for few
> > seconds, but then I get repeated oopses.
> > 
> > On v4.15-rc0.5 (commit ed30b147e1f6e396e70a52dbb6c7d66befedd786),
> > camera does not start.	  
> > 
> > Any ideas what might be wrong there?
> 
> What kind of oopses do you get?

Hmm. bisect pointed to commit that can't be responsible.... Ideas
welcome.

										Pavel

# bad: [fb3f95c11904adf26c2bd86fe1b1613c921710b5] Config for v4.15-rc0.5
# good: [c213cf57c2f15ee226c14dd7157caa334c3ef7c8] Make config similar to n950 case. Still works on n900.
git bisect start 'mini-v4.15' 'mini-v4.14'
# good: [06410bdec961a55e78e01d4fda199f709a84e17f] Merge /data/l/clean-cg into mini-v4.14
git bisect good 06410bdec961a55e78e01d4fda199f709a84e17f
# bad: [fc35c1966e1372a21a88f6655279361e2f92713f] Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
git bisect bad fc35c1966e1372a21a88f6655279361e2f92713f
# good: [bebc6082da0a9f5d47a1ea2edc099bf671058bd4] Linux 4.14
git bisect good bebc6082da0a9f5d47a1ea2edc099bf671058bd4
# good: [5bbcc0f595fadb4cac0eddc4401035ec0bd95b09] Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
git bisect good 5bbcc0f595fadb4cac0eddc4401035ec0bd95b09
# bad: [5b0e2cb020085efe202123162502e0b551e49a0e] Merge tag 'powerpc-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
git bisect bad 5b0e2cb020085efe202123162502e0b551e49a0e
# good: [f150891fd9878ef0d9197c4e8451ce67c3bdd014] Merge tag 'exynos-drm-next-for-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
git bisect good f150891fd9878ef0d9197c4e8451ce67c3bdd014
# good: [93ea0eb7d77afab34657715630d692a78b8cea6a] Merge tag 'leaks-4.15-rc1' of git://github.com/tcharding/linux
git bisect good 93ea0eb7d77afab34657715630d692a78b8cea6a
# bad: [2bf16b7a73caf3435f782e4170cfe563675e10f9] Merge tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
git bisect bad 2bf16b7a73caf3435f782e4170cfe563675e10f9
# good: [ef674997e49760137ca9a90aac41a9922ac399b2] media: staging: atomisp: Convert timers to use timer_setup()
git bisect good ef674997e49760137ca9a90aac41a9922ac399b2
# good: [b1cb7372fa822af6c06c8045963571d13ad6348b] dvb_frontend: don't use-after-free the frontend struct
git bisect good b1cb7372fa822af6c06c8045963571d13ad6348b
# good: [c9fe0f8fa4136c2451dcc012e48fbf4470d6b592] hyper-v: trace vmbus_on_msg_dpc()
git bisect good c9fe0f8fa4136c2451dcc012e48fbf4470d6b592
# good: [e20d2b291ba2f5441fd4aacd746c21e60d48b559] nvmem: imx-ocotp: Pass parameters via a struct
git bisect good e20d2b291ba2f5441fd4aacd746c21e60d48b559
# good: [0ff26c662d5f3b26674d5205c8899d901f766acb] driver core: Fix device link deferred probe
git bisect good 0ff26c662d5f3b26674d5205c8899d901f766acb
# good: [d4035a8c1ff7288af9e47d6d05384f14c9308ea1] MAINTAINERS: Update VME subsystem tree.
git bisect good d4035a8c1ff7288af9e47d6d05384f14c9308ea1
# bad: [e60e1ee60630cafef5e430c2ae364877e061d980] Merge tag 'drm-for-v4.15' of git://people.freedesktop.org/~airlied/linux
git bisect bad e60e1ee60630cafef5e430c2ae364877e061d980
# bad: [5d352e69c60e54b5f04d6e337a1d2bf0dbf3d94a] Merge tag 'media/v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
git bisect bad 5d352e69c60e54b5f04d6e337a1d2bf0dbf3d94a
# good: [f2ecc3d0787e05d9145722feed01d4a11ab6bec1] Merge tag 'staging-4.15-rc1' into v4l_for_linus
git bisect good f2ecc3d0787e05d9145722feed01d4a11ab6bec1
# first bad commit: [5d352e69c60e54b5f04d6e337a1d2bf0dbf3d94a] Merge tag 'media/v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media


-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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v4.15: camera problems on n900

[Sakari Ailus]

On Thu, Dec 28, 2017 at 09:24:53PM +0100, Pavel Machek wrote:
> On Wed 2017-12-27 23:17:19, Sakari Ailus wrote:
> > On Wed, Dec 27, 2017 at 10:05:43PM +0100, Pavel Machek wrote:
> > > Hi!
> > > 
> > > In v4.14, back camera on N900 works. On v4.15-rc1.. it works for few
> > > seconds, but then I get repeated oopses.
> > > 
> > > On v4.15-rc0.5 (commit ed30b147e1f6e396e70a52dbb6c7d66befedd786),
> > > camera does not start.	  
> > > 
> > > Any ideas what might be wrong there?
> > 
> > What kind of oopses do you get?
> 
> Hmm. bisect pointed to commit that can't be responsible.... Ideas
> welcome.

Hi Pavel,

I tested N9 and capture appears to be working from the CSI-2 receiver
(media tree master, i.e. v4.15-rc3 now).

Which pipeline did you use?

-- 
Regards,

Sakari Ailus
e-mail: sakari.ailus at iki.fi

v4.15: camera problems on n900

[Pavel Machek]

On Fri 2017-12-29 11:38:55, Sakari Ailus wrote:
> On Thu, Dec 28, 2017 at 09:24:53PM +0100, Pavel Machek wrote:
> > On Wed 2017-12-27 23:17:19, Sakari Ailus wrote:
> > > On Wed, Dec 27, 2017 at 10:05:43PM +0100, Pavel Machek wrote:
> > > > Hi!
> > > > 
> > > > In v4.14, back camera on N900 works. On v4.15-rc1.. it works for few
> > > > seconds, but then I get repeated oopses.
> > > > 
> > > > On v4.15-rc0.5 (commit ed30b147e1f6e396e70a52dbb6c7d66befedd786),
> > > > camera does not start.	  
> > > > 
> > > > Any ideas what might be wrong there?
> > > 
> > > What kind of oopses do you get?
> > 
> > Hmm. bisect pointed to commit that can't be responsible.... Ideas
> > welcome.
> 
> Hi Pavel,
> 
> I tested N9 and capture appears to be working from the CSI-2 receiver
> (media tree master, i.e. v4.15-rc3 now).
> 
> Which pipeline did you use?

I'm using the "main" sensor (5MPx) and am using capture (not preview)
pipeline.

I tested linux-next in the meantime, and that one seems to
work. (Which is strange, I believe it oopsed before. Perhaps something
random?) With linux-next working, it should not be hardto figure out
what is going on.

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