On Tue, Aug 23, 2016 at 04:42:15PM -0700, Dan Williams wrote:
On Mon, Aug 22, 2016 at 5:26 AM, Yilong Ren <[email protected]> wrote:
Hi, Williams
On Mon, Aug 15, 2016 at 06:30:48PM -0700, Dan Williams wrote:
On Mon, Aug 15, 2016 at 6:26 PM, Fengguang Wu <[email protected]> wrote:
> On Mon, Aug 15, 2016 at 05:58:36PM -0700, Dan Williams wrote:
>>
>> On Mon, Aug 15, 2016 at 3:03 AM, kbuild test robot
>> <[email protected]> wrote:
>>>
>>> tree:
>>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>>> head: 694d0d0bb2030d2e36df73e2d23d5770511dbc8d
>>> commit: ab68f26221366f92611650e8470e6a926801c7d4 /dev/dax, pmem: direct
>>> access to persistent memory
>>> date: 3 months ago
>>> config: i386-randconfig-i1-201633 (attached as .config)
>>> compiler: gcc-4.8 (Debian 4.8.4-1) 4.8.4
>>> reproduce:
>>> git checkout ab68f26221366f92611650e8470e6a926801c7d4
>>> # save the attached .config to linux build tree
>>> make ARCH=i386
>>>
>>> All errors (new ones prefixed by >>):
>>>
>>>>> make[2]: *** No rule to make target
>>>>> 'tools/testing/nvdimm//config_check.o', needed by
>>>>> 'tools/testing/nvdimm//dax.o'.
>>>
>>> make[2]: Target '__build' not remade because of errors.
>>
>>
>> I think this is an invalid build test. tools/testing/nvdimm/ uses a
>> external module Kbuild environment, not Kconfig. So, there's nothing
>> I can do to prevent this compile error, unless there's some other way
>> 0-day could determine the configuration dependencies?
>
>
> Yeah if you can offer a concrete rule for the dependency, we'll add
> it to 0-day.
Sounds good. The config_check.c file itself lists the dependencies:
void check(void)
{
/*
* These kconfig symbols must be set to "m" for nfit_test to
* load and operate.
*/
BUILD_BUG_ON(!IS_MODULE(CONFIG_LIBNVDIMM));
BUILD_BUG_ON(!IS_MODULE(CONFIG_BLK_DEV_PMEM));
BUILD_BUG_ON(!IS_MODULE(CONFIG_ND_BTT));
BUILD_BUG_ON(!IS_MODULE(CONFIG_ND_PFN));
BUILD_BUG_ON(!IS_MODULE(CONFIG_ND_BLK));
BUILD_BUG_ON(!IS_MODULE(CONFIG_ACPI_NFIT));
BUILD_BUG_ON(!IS_MODULE(CONFIG_DEV_DAX));
BUILD_BUG_ON(!IS_MODULE(CONFIG_DEV_DAX_PMEM));
}
will get the following error info after set all above kconfig to be "m":
/kbuild/src/lkp/Makefile:1478: recipe for target
'_module_tools/testing/nvdimm/' failed
Would you please help to take a look? thanks.
reproduce:
git checkout 29b4817d4018df78086157ea3a55c1d9424a7cfc (v4.8-rc1)
# save the attached .config to linux build tree
make HOSTCC=gcc-6 CC=gcc-6 ARCH=x86_64 prepare
make HOSTCC=gcc-6 CC=gcc-6 ARCH=x86_64 modules_prepare
make HOSTCC=gcc-6 CC=gcc-6 ARCH=x86_64 M=tools/testing/nvdimm/
error info:
/usr/bin/timeout -k 100 3h /usr/bin/make HOSTCC=gcc-6 CC=gcc-6 -j100 -C source
O=/kbuild/obj/lkp/x86_64-rhel-7.2 ARCH=x86_64 M=tools/testing/nvdimm/
make: Entering directory '/kbuild/src/lkp'
make[1]: Entering directory '/kbuild/obj/lkp/x86_64-rhel-7.2'
LD tools/testing/nvdimm//built-in.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/core.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/bus.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/dimm.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/region_devs.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/region.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/dimm_devs.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/label.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/namespace_devs.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/btt_devs.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/pfn_devs.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/claim.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/dax_devs.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/pmem.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/blk.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/e820.o
CC [M] tools/testing/nvdimm//../../../drivers/acpi/nfit/core.o
CC [M] tools/testing/nvdimm//../../../drivers/nvdimm/btt.o
CC [M] tools/testing/nvdimm//../../../drivers/acpi/nfit/mce.o
CC [M] tools/testing/nvdimm//../../../drivers/dax/dax.o
CC [M] tools/testing/nvdimm//../../../drivers/dax/pmem.o
LD tools/testing/nvdimm//test/built-in.o
CC [M] tools/testing/nvdimm//test/nfit.o
CC [M] tools/testing/nvdimm//test/iomap.o
LD [M] tools/testing/nvdimm//test/nfit_test_iomap.o
LD [M] tools/testing/nvdimm//test/nfit_test.o
/kbuild/src/lkp/Makefile:1478: recipe for target '_module_tools/testing/nvdimm/'
failed <======
I was not able to reproduce this, I tried on Fedora 23 and Fedora 24
and both attempts succeeded.
Hi Dan, it looks the error only happens with separated obj dir, when
KBUILD_OUTPUT or "-C .. O=.." is used in make command line.
Thanks,
Fengguang
