[ptxdist] Empty modules.dep after kernel update

[ptxdist] Empty modules.dep after kernel update

[Matthias Klein]

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Hello,

I am working on a kernel update from 4.4 to 4.14 in our ptxdist 2016.04 
based BSP.

The kernel builds fine, but the modules.dep file is zero bytes long.
I updated libkmod.make from version 22 to 24, but that did not help.

When I run the depmod from sysroot-host/sbin/ by hand it finds no 
symbols:

./depmod -a -n -b ~/bsp/platform-xxx/root 4.14.1-00003-gb5f7a9a47e0b
# Aliases extracted from modules themselves.
# Soft dependencies extracted from modules themselves.
# Aliases for symbols, used by symbol_request().

If I run the same with the old 4.4 path I get a lot of symbols / output
./depmod -a -n -b ~/bsp/platform-xxx/root 4.4.79


Does anyone have an idea what could be wrong, or what I can check?


Thanks a lot for your help!


Best regards,
Matthias

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Re: [ptxdist] Empty modules.dep after kernel update

[Michael Olbrich]

Hi,

On Wed, Nov 22, 2017 at 12:27:28PM +0000, Matthias Klein wrote:
> I am working on a kernel update from 4.4 to 4.14 in our ptxdist 2016.04
> based BSP.
> 
> The kernel builds fine, but the modules.dep file is zero bytes long.
> I updated libkmod.make from version 22 to 24, but that did not help.
> 
> When I run the depmod from sysroot-host/sbin/ by hand it finds no symbols:
> 
> ./depmod -a -n -b ~/bsp/platform-xxx/root 4.14.1-00003-gb5f7a9a47e0b
> # Aliases extracted from modules themselves.
> # Soft dependencies extracted from modules themselves.
> # Aliases for symbols, used by symbol_request().
> 
> If I run the same with the old 4.4 path I get a lot of symbols / output
> ./depmod -a -n -b ~/bsp/platform-xxx/root 4.4.79
> 
> 
> Does anyone have an idea what could be wrong, or what I can check?

Does it work with 'depmod' from your host system? Maybe you enabled module
compression fo 4.14? That's currently disabled in host-libkmod.

Michael

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
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Re: [ptxdist] Empty modules.dep after kernel update

[Matthias Klein]

Hello Michael,

thanks a lot for the tip!

It was the modules compression which was turned on ...


Best regards,
Matthias

------ Originalnachricht ------
Von: "Michael Olbrich" <m.olbrich@pengutronix.de>
An: ptxdist@pengutronix.de
Gesendet: 22.11.2017 14:14:39
Betreff: Re: [ptxdist] Empty modules.dep after kernel update

>Hi,
>
>On Wed, Nov 22, 2017 at 12:27:28PM +0000, Matthias Klein wrote:
>>  I am working on a kernel update from 4.4 to 4.14 in our ptxdist 
>>2016.04
>>  based BSP.
>>
>>  The kernel builds fine, but the modules.dep file is zero bytes long.
>>  I updated libkmod.make from version 22 to 24, but that did not help.
>>
>>  When I run the depmod from sysroot-host/sbin/ by hand it finds no 
>>symbols:
>>
>>  ./depmod -a -n -b ~/bsp/platform-xxx/root 4.14.1-00003-gb5f7a9a47e0b
>>  # Aliases extracted from modules themselves.
>>  # Soft dependencies extracted from modules themselves.
>>  # Aliases for symbols, used by symbol_request().
>>
>>  If I run the same with the old 4.4 path I get a lot of symbols / 
>>output
>>  ./depmod -a -n -b ~/bsp/platform-xxx/root 4.4.79
>>
>>
>>  Does anyone have an idea what could be wrong, or what I can check?
>
>Does it work with 'depmod' from your host system? Maybe you enabled 
>module
>compression fo 4.14? That's currently disabled in host-libkmod.
>
>Michael
>
>--
>Pengutronix e.K.                           |                            
>  |
>Industrial Linux Solutions                 | http://www.pengutronix.de/ 
>  |
>Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0   
>  |
>Amtsgericht Hildesheim, HRA 2686           | Fax:   
>+49-5121-206917-5555 |
>
>_______________________________________________
>ptxdist mailing list
>ptxdist@pengutronix.de


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