From: kernel test robot <lkp@intel.com>
To: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
linux-mm@kvack.org, akpm@linux-foundation.org
Cc: kbuild-all@lists.01.org, mpe@ellerman.id.au,
linuxppc-dev@lists.ozlabs.org,
Anshuman Khandual <anshuman.khandual@arm.com>,
linux-arm-kernel@lists.infradead.org, linux-s390@vger.kernel.org,
linux-snps-arc@lists.infradead.org, x86@kernel.org,
linux-arch@vger.kernel.org
Subject: Re: [PATCH v3 13/13] mm/debug_vm_pgtable: populate a pte entry before fetching it
Date: Thu, 27 Aug 2020 20:17:44 +0800 [thread overview]
Message-ID: <202008272054.x698qWB6%lkp@intel.com> (raw)
In-Reply-To: <20200827080438.315345-14-aneesh.kumar@linux.ibm.com>
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Hi "Aneesh,
I love your patch! Perhaps something to improve:
[auto build test WARNING on hnaz-linux-mm/master]
[also build test WARNING on powerpc/next v5.9-rc2 next-20200827]
[cannot apply to mmotm/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Aneesh-Kumar-K-V/mm-debug_vm_pgtable-fixes/20200827-160758
base: https://github.com/hnaz/linux-mm master
config: x86_64-randconfig-s022-20200827 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.2-191-g10164920-dirty
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
mm/debug_vm_pgtable.c:509:9: sparse: sparse: incompatible types in conditional expression (different base types):
mm/debug_vm_pgtable.c:509:9: sparse: void
mm/debug_vm_pgtable.c:509:9: sparse: int
mm/debug_vm_pgtable.c:528:9: sparse: sparse: incompatible types in conditional expression (different base types):
mm/debug_vm_pgtable.c:528:9: sparse: void
mm/debug_vm_pgtable.c:528:9: sparse: int
mm/debug_vm_pgtable.c: note: in included file (through include/linux/pgtable.h, include/linux/mm.h, include/linux/highmem.h):
>> arch/x86/include/asm/pgtable.h:587:27: sparse: sparse: context imbalance in 'debug_vm_pgtable' - unexpected unlock
# https://github.com/0day-ci/linux/commit/9370726f47eaffdf772fdc273d180ec03b245cca
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Aneesh-Kumar-K-V/mm-debug_vm_pgtable-fixes/20200827-160758
git checkout 9370726f47eaffdf772fdc273d180ec03b245cca
vim +/debug_vm_pgtable +587 arch/x86/include/asm/pgtable.h
b534816b552d35 Jeremy Fitzhardinge 2009-02-04 586
fb43d6cb91ef57 Dave Hansen 2018-04-06 @587 static inline pgprotval_t check_pgprot(pgprot_t pgprot)
fb43d6cb91ef57 Dave Hansen 2018-04-06 588 {
fb43d6cb91ef57 Dave Hansen 2018-04-06 589 pgprotval_t massaged_val = massage_pgprot(pgprot);
fb43d6cb91ef57 Dave Hansen 2018-04-06 590
fb43d6cb91ef57 Dave Hansen 2018-04-06 591 /* mmdebug.h can not be included here because of dependencies */
fb43d6cb91ef57 Dave Hansen 2018-04-06 592 #ifdef CONFIG_DEBUG_VM
fb43d6cb91ef57 Dave Hansen 2018-04-06 593 WARN_ONCE(pgprot_val(pgprot) != massaged_val,
fb43d6cb91ef57 Dave Hansen 2018-04-06 594 "attempted to set unsupported pgprot: %016llx "
fb43d6cb91ef57 Dave Hansen 2018-04-06 595 "bits: %016llx supported: %016llx\n",
fb43d6cb91ef57 Dave Hansen 2018-04-06 596 (u64)pgprot_val(pgprot),
fb43d6cb91ef57 Dave Hansen 2018-04-06 597 (u64)pgprot_val(pgprot) ^ massaged_val,
fb43d6cb91ef57 Dave Hansen 2018-04-06 598 (u64)__supported_pte_mask);
fb43d6cb91ef57 Dave Hansen 2018-04-06 599 #endif
fb43d6cb91ef57 Dave Hansen 2018-04-06 600
fb43d6cb91ef57 Dave Hansen 2018-04-06 601 return massaged_val;
fb43d6cb91ef57 Dave Hansen 2018-04-06 602 }
fb43d6cb91ef57 Dave Hansen 2018-04-06 603
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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next prev parent reply other threads:[~2020-08-27 12:18 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-27 8:04 [PATCH v3 00/13] mm/debug_vm_pgtable fixes Aneesh Kumar K.V
2020-08-27 8:04 ` [PATCH v3 01/13] powerpc/mm: Add DEBUG_VM WARN for pmd_clear Aneesh Kumar K.V
2020-09-01 3:12 ` Anshuman Khandual
2020-08-27 8:04 ` [PATCH v3 02/13] powerpc/mm: Move setting pte specific flags to pfn_pte Aneesh Kumar K.V
2020-09-01 3:13 ` Anshuman Khandual
2020-08-27 8:04 ` [PATCH v3 03/13] mm/debug_vm_pgtable/ppc64: Avoid setting top bits in radom value Aneesh Kumar K.V
2020-09-01 3:15 ` Anshuman Khandual
2020-09-01 6:21 ` Aneesh Kumar K.V
2020-09-01 7:32 ` Anshuman Khandual
2020-09-01 7:36 ` Aneesh Kumar K.V
2020-09-01 7:46 ` Anshuman Khandual
2020-09-01 7:55 ` Aneesh Kumar K.V
2020-09-02 3:45 ` Anshuman Khandual
2020-08-27 8:04 ` [PATCH v3 04/13] mm/debug_vm_pgtables/hugevmap: Use the arch helper to identify huge vmap support Aneesh Kumar K.V
2020-09-01 3:16 ` Anshuman Khandual
2020-08-27 8:04 ` [PATCH v3 05/13] mm/debug_vm_pgtable/savedwrite: Enable savedwrite test with CONFIG_NUMA_BALANCING Aneesh Kumar K.V
2020-09-01 3:18 ` Anshuman Khandual
2020-08-27 8:04 ` [PATCH v3 06/13] mm/debug_vm_pgtable/THP: Mark the pte entry huge before using set_pmd/pud_at Aneesh Kumar K.V
2020-09-01 3:21 ` Anshuman Khandual
2020-09-01 6:23 ` Aneesh Kumar K.V
2020-08-27 8:04 ` [PATCH v3 07/13] mm/debug_vm_pgtable/set_pte/pmd/pud: Don't use set_*_at to update an existing pte entry Aneesh Kumar K.V
2020-08-27 8:04 ` [PATCH v3 08/13] mm/debug_vm_pgtable/thp: Use page table depost/withdraw with THP Aneesh Kumar K.V
2020-09-01 3:22 ` Anshuman Khandual
2020-09-01 6:25 ` Aneesh Kumar K.V
2020-09-01 6:50 ` Christophe Leroy
2020-09-01 7:40 ` Aneesh Kumar K.V
2020-09-01 7:51 ` Christophe Leroy
2020-09-02 3:45 ` Anshuman Khandual
2020-08-27 8:04 ` [PATCH v3 09/13] mm/debug_vm_pgtable/locks: Move non page table modifying test together Aneesh Kumar K.V
2020-09-01 3:41 ` Anshuman Khandual
2020-09-01 6:38 ` Aneesh Kumar K.V
2020-09-01 9:33 ` Anshuman Khandual
2020-09-01 9:36 ` Aneesh Kumar K.V
2020-09-01 9:58 ` Anshuman Khandual
2020-08-27 8:04 ` [PATCH v3 10/13] mm/debug_vm_pgtable/locks: Take correct page table lock Aneesh Kumar K.V
2020-09-01 3:44 ` Anshuman Khandual
2020-08-27 8:04 ` [PATCH v3 11/13] mm/debug_vm_pgtable/pmd_clear: Don't use pmd/pud_clear on pte entries Aneesh Kumar K.V
2020-08-27 8:04 ` [PATCH v3 12/13] mm/debug_vm_pgtable/hugetlb: Disable hugetlb test on ppc64 Aneesh Kumar K.V
2020-09-01 4:03 ` Anshuman Khandual
2020-09-01 6:30 ` Aneesh Kumar K.V
2020-09-01 7:59 ` Christophe Leroy
2020-09-02 13:05 ` Anshuman Khandual
2020-09-02 13:20 ` Aneesh Kumar K.V
2020-08-27 8:04 ` [PATCH v3 13/13] mm/debug_vm_pgtable: populate a pte entry before fetching it Aneesh Kumar K.V
2020-08-27 12:17 ` kernel test robot [this message]
2020-09-01 3:25 ` Anshuman Khandual
2020-09-01 6:37 ` Aneesh Kumar K.V
2020-09-01 7:38 ` Anshuman Khandual
2020-09-01 9:58 ` Aneesh Kumar K.V
2020-09-02 3:49 ` Anshuman Khandual
2020-09-02 3:58 ` Aneesh Kumar K.V
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