[gentoo-user] Locating CONFIG_ZONE_DEVICE

[gentoo-user] Locating CONFIG_ZONE_DEVICE

[Michael]

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I got this message:

 * Messages for package dev-libs/roct-thunk-interface-5.3.3:

 *   CONFIG_ZONE_DEVICE:         is not set when it should be.
 * Please check to make sure these options are set correctly.
 * Failure to do so may cause unexpected problems.

and stated searching for ZONE_DEVICE in my kernel config, but can't find it:

 $ grep ZONE_DEVICE /usr/src/linux/.config
 $
 $ grep ZONE /usr/src/linux/.config
CONFIG_BLK_DEV_ZONED=y
CONFIG_BLK_DEBUG_FS_ZONED=y
CONFIG_ZONE_DMA=y
CONFIG_ZONE_DMA32=y
# CONFIG_NF_CONNTRACK_ZONES is not set
# CONFIG_DM_ZONED is not set
# CONFIG_ZONEFS_FS is not set
 $

Any idea where it might be hiding?

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Re: [gentoo-user] Locating CONFIG_ZONE_DEVICE

[Peter Böhm]

It is in:
Memory Management options  --->

and you will see it only if you have enabled this:

Depends on: MEMORY_HOTPLUG [=y] && MEMORY_HOTREMOVE [=y] && SPARSEMEM_VMEMMAP
[=y] && ARCH_HAS_PTE_DEVMAP [=y]

You can ALWAYS search with a / in make menuconfig (leading CONFIG_ is not
necessary).

Am Freitag, 23. Dezember 2022, 10:50:55 CET schrieb Michael:
> I got this message:
>
>  * Messages for package dev-libs/roct-thunk-interface-5.3.3:
>
>  *   CONFIG_ZONE_DEVICE:         is not set when it should be.
>  * Please check to make sure these options are set correctly.
>  * Failure to do so may cause unexpected problems.
>
> and stated searching for ZONE_DEVICE in my kernel config, but can't find it:
>
>  $ grep ZONE_DEVICE /usr/src/linux/.config
>  $
>  $ grep ZONE /usr/src/linux/.config
> CONFIG_BLK_DEV_ZONED=y
> CONFIG_BLK_DEBUG_FS_ZONED=y
> CONFIG_ZONE_DMA=y
> CONFIG_ZONE_DMA32=y
> # CONFIG_NF_CONNTRACK_ZONES is not set
> # CONFIG_DM_ZONED is not set
> # CONFIG_ZONEFS_FS is not set
>  $
>
> Any idea where it might be hiding?

Re: [gentoo-user] Locating CONFIG_ZONE_DEVICE

[Michael]

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On Friday, 23 December 2022 10:09:10 GMT Peter Böhm wrote:
> It is in:
> Memory Management options  --->
> 
> and you will see it only if you have enabled this:
> 
> Depends on: MEMORY_HOTPLUG [=y] && MEMORY_HOTREMOVE [=y] &&
> SPARSEMEM_VMEMMAP [=y] && ARCH_HAS_PTE_DEVMAP [=y]

Thanks!  I found it.  :-)

~ $ grep ZONE_DEVICE /usr/src/linux/.config
CONFIG_ZONE_DEVICE=y

> You can ALWAYS search with a / in make menuconfig (leading CONFIG_ is not
> necessary).

Hidden options do not show up until precedents have been enabled.  I had to 
enable a couple of the HOTPLUG options and then it showed up.

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Re: [gentoo-user] Locating CONFIG_ZONE_DEVICE

[Morgan Wesström]

> Hidden options do not show up until precedents have been enabled.  I had to
> enable a couple of the HOTPLUG options and then it showed up.

You can press the letter Z to toggle the display of hidden items.

/Morgan

Re: [gentoo-user] Locating CONFIG_ZONE_DEVICE

[Michael]

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On Friday, 23 December 2022 13:30:22 GMT Morgan Wesström wrote:
> > Hidden options do not show up until precedents have been enabled.  I had
> > to
> > enable a couple of the HOTPLUG options and then it showed up.
> 
> You can press the letter Z to toggle the display of hidden items.
> 
> /Morgan

Thanks!  I didn't know this.

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Re: [gentoo-user] Locating CONFIG_ZONE_DEVICE

[Wol]

On 23/12/2022 12:46, Michael wrote:
> On Friday, 23 December 2022 10:09:10 GMT Peter Böhm wrote:
>> It is in:
>> Memory Management options  --->
>>
>> and you will see it only if you have enabled this:
>>
>> Depends on: MEMORY_HOTPLUG [=y] && MEMORY_HOTREMOVE [=y] &&
>> SPARSEMEM_VMEMMAP [=y] && ARCH_HAS_PTE_DEVMAP [=y]
> 
> Thanks!  I found it.  :-)
> 
> ~ $ grep ZONE_DEVICE /usr/src/linux/.config
> CONFIG_ZONE_DEVICE=y
> 
>> You can ALWAYS search with a / in make menuconfig (leading CONFIG_ is not
>> necessary).
> 
> Hidden options do not show up until precedents have been enabled.  I had to
> enable a couple of the HOTPLUG options and then it showed up.

But / should (a) tell you where it is, and (b) tell you what to enable 
to make it appear.

That's what Peter meant when he said / will always find it. / won't make 
it appear, it tells *you* how to make it appear.

Cheers,
Wol