* Re: [PATCH v4 1/2] KVM: guest_memfd: add generic population via write
[not found] <20250828153049.3922-2-kalyazin@amazon.com>
@ 2025-08-30 18:56 ` kernel test robot
2025-09-01 10:09 ` David Hildenbrand
0 siblings, 1 reply; 3+ messages in thread
From: kernel test robot @ 2025-08-30 18:56 UTC (permalink / raw)
To: Kalyazin, Nikita, pbonzini@redhat.com, shuah@kernel.org
Cc: llvm, oe-kbuild-all, kvm@vger.kernel.org,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
michael.day@amd.com, david@redhat.com, jthoughton@google.com,
Roy, Patrick, Thomson, Jack, Manwaring, Derek, Cali, Marco,
Kalyazin, Nikita
Hi Nikita,
kernel test robot noticed the following build errors:
[auto build test ERROR on a6ad54137af92535cfe32e19e5f3bc1bb7dbd383]
url: https://github.com/intel-lab-lkp/linux/commits/Kalyazin-Nikita/KVM-guest_memfd-add-generic-population-via-write/20250828-233437
base: a6ad54137af92535cfe32e19e5f3bc1bb7dbd383
patch link: https://lore.kernel.org/r/20250828153049.3922-2-kalyazin%40amazon.com
patch subject: [PATCH v4 1/2] KVM: guest_memfd: add generic population via write
config: x86_64-randconfig-001-20250830 (https://download.01.org/0day-ci/archive/20250831/202508310252.E5uFh1hx-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250831/202508310252.E5uFh1hx-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202508310252.E5uFh1hx-lkp@intel.com/
All errors (new ones prefixed by >>, old ones prefixed by <<):
>> ERROR: modpost: "filemap_remove_folio" [arch/x86/kvm/kvm.ko] undefined!
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v4 1/2] KVM: guest_memfd: add generic population via write
2025-08-30 18:56 ` [PATCH v4 1/2] KVM: guest_memfd: add generic population via write kernel test robot
@ 2025-09-01 10:09 ` David Hildenbrand
2025-09-01 14:29 ` Nikita Kalyazin
0 siblings, 1 reply; 3+ messages in thread
From: David Hildenbrand @ 2025-09-01 10:09 UTC (permalink / raw)
To: kernel test robot, Kalyazin, Nikita, pbonzini@redhat.com,
shuah@kernel.org
Cc: llvm, oe-kbuild-all, kvm@vger.kernel.org,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
michael.day@amd.com, jthoughton@google.com, Roy, Patrick,
Thomson, Jack, Manwaring, Derek, Cali, Marco
On 30.08.25 20:56, kernel test robot wrote:
> Hi Nikita,
>
> kernel test robot noticed the following build errors:
>
> [auto build test ERROR on a6ad54137af92535cfe32e19e5f3bc1bb7dbd383]
>
> url: https://github.com/intel-lab-lkp/linux/commits/Kalyazin-Nikita/KVM-guest_memfd-add-generic-population-via-write/20250828-233437
> base: a6ad54137af92535cfe32e19e5f3bc1bb7dbd383
> patch link: https://lore.kernel.org/r/20250828153049.3922-2-kalyazin%40amazon.com
> patch subject: [PATCH v4 1/2] KVM: guest_memfd: add generic population via write
> config: x86_64-randconfig-001-20250830 (https://download.01.org/0day-ci/archive/20250831/202508310252.E5uFh1hx-lkp@intel.com/config)
> compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250831/202508310252.E5uFh1hx-lkp@intel.com/reproduce)
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202508310252.E5uFh1hx-lkp@intel.com/
>
> All errors (new ones prefixed by >>, old ones prefixed by <<):
>
>>> ERROR: modpost: "filemap_remove_folio" [arch/x86/kvm/kvm.ko] undefined!
Right, that one is not exported.
--
Cheers
David / dhildenb
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v4 1/2] KVM: guest_memfd: add generic population via write
2025-09-01 10:09 ` David Hildenbrand
@ 2025-09-01 14:29 ` Nikita Kalyazin
0 siblings, 0 replies; 3+ messages in thread
From: Nikita Kalyazin @ 2025-09-01 14:29 UTC (permalink / raw)
To: David Hildenbrand, kernel test robot, Kalyazin, Nikita,
pbonzini@redhat.com, shuah@kernel.org
Cc: llvm, oe-kbuild-all, kvm@vger.kernel.org,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
jthoughton@google.com, Roy, Patrick, Thomson, Jack,
Manwaring, Derek, Cali, Marco
On 01/09/2025 11:09, David Hildenbrand wrote:
> On 30.08.25 20:56, kernel test robot wrote:
>> Hi Nikita,
>>
>> kernel test robot noticed the following build errors:
>>
>> [auto build test ERROR on a6ad54137af92535cfe32e19e5f3bc1bb7dbd383]
>>
>> url: https://github.com/intel-lab-lkp/linux/commits/Kalyazin-
>> Nikita/KVM-guest_memfd-add-generic-population-via-write/20250828-233437
>> base: a6ad54137af92535cfe32e19e5f3bc1bb7dbd383
>> patch link: https://lore.kernel.org/r/20250828153049.3922-2-
>> kalyazin%40amazon.com
>> patch subject: [PATCH v4 1/2] KVM: guest_memfd: add generic population
>> via write
>> config: x86_64-randconfig-001-20250830 (https://download.01.org/0day-
>> ci/archive/20250831/202508310252.E5uFh1hx-lkp@intel.com/config)
>> compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project
>> 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
>> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/
>> archive/20250831/202508310252.E5uFh1hx-lkp@intel.com/reproduce)
>>
>> If you fix the issue in a separate patch/commit (i.e. not just a new
>> version of
>> the same patch/commit), kindly add following tags
>> | Reported-by: kernel test robot <lkp@intel.com>
>> | Closes: https://lore.kernel.org/oe-kbuild-all/202508310252.E5uFh1hx-
>> lkp@intel.com/
>>
>> All errors (new ones prefixed by >>, old ones prefixed by <<):
>>
>>>> ERROR: modpost: "filemap_remove_folio" [arch/x86/kvm/kvm.ko] undefined!
>
> Right, that one is not exported.
Indeed. Having a look at other .write_end implementations, it looks
like the convention is zeroing the uncopied part instead of trying to
remove the folio from the cache. Will do it in the next version.
>
> --
> Cheers
>
> David / dhildenb
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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[not found] <20250828153049.3922-2-kalyazin@amazon.com>
2025-08-30 18:56 ` [PATCH v4 1/2] KVM: guest_memfd: add generic population via write kernel test robot
2025-09-01 10:09 ` David Hildenbrand
2025-09-01 14:29 ` Nikita Kalyazin
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