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Message-ID: <CAPcyv4iFzRQ_PozX+NOar4-bv7N1sVL=vZgZ2pU2hZK_SO=8ZQ@mail.gmail.com>
Date: Tue, 23 Aug 2016 16:42:15 -0700
From: Dan Williams <dan.j.williams@...el.com>
To: Yilong Ren <yilongx.ren@...el.com>
Cc: Fengguang Wu <fengguang.wu@...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 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.
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