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Message-ID: <20160824024734.2ri55bwur5gcf37o@wfg-t540p.sh.intel.com>
Date: Wed, 24 Aug 2016 10:47:34 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Dan Williams <dan.j.williams@...el.com>
Cc: Yilong Ren <yilongx.ren@...el.com>,
Johannes Thumshirn <jthumshirn@...e.de>, kbuild-all@...org,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [kbuild-all] make[2]: *** No rule to make target
'tools/testing/nvdimm//config_check.o', needed by
'tools/testing/nvdimm//dax.o'.
On Tue, Aug 23, 2016 at 04:42:15PM -0700, Dan Williams wrote:
>On Mon, Aug 22, 2016 at 5:26 AM, Yilong Ren <yilongx.ren@...el.com> 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 <fengguang.wu@...el.com> 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
>>> >> <fengguang.wu@...el.com> 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
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