From: kernel test robot <lkp@intel.com>
To: Waiman Long <longman@redhat.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@kernel.org>,
Vladimir Davydov <vdavydov.dev@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Tejun Heo <tj@kernel.org>,
Christoph Lameter <cl@linux-foundation.org>,
Pekka Enberg <penberg@kernel.org>,
David Rientjes <rientjes@google.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: kbuild-all@lists.01.org, clang-built-linux@googlegroups.com,
Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: [PATCH v2 3/5] mm/memcg: Cache vmstat data in percpu memcg_stock_pcp
Date: Wed, 14 Apr 2021 02:32:54 +0800 [thread overview]
Message-ID: <202104140201.eP2r4b5I-lkp@intel.com> (raw)
In-Reply-To: <20210412225503.15119-4-longman@redhat.com>
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Hi Waiman,
I love your patch! Perhaps something to improve:
[auto build test WARNING on dennis-percpu/for-next]
[also build test WARNING on linus/master v5.12-rc7 next-20210413]
[cannot apply to hnaz-linux-mm/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/Waiman-Long/mm-memcg-Reduce-kmemcache-memory-accounting-overhead/20210413-065659
base: https://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu.git for-next
config: mips-randconfig-r031-20210413 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 9829f5e6b1bca9b61efc629770d28bb9014dec45)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install mips cross compiling tool for clang build
# apt-get install binutils-mips-linux-gnu
# https://github.com/0day-ci/linux/commit/565fa80b02eeb06c48a88ac6354a4fc9e5addd06
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Waiman-Long/mm-memcg-Reduce-kmemcache-memory-accounting-overhead/20210413-065659
git checkout 565fa80b02eeb06c48a88ac6354a4fc9e5addd06
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from mm/mempool.c:22:
>> mm/slab.h:401:13: warning: unused function 'mod_obj_stock_state' [-Wunused-function]
static void mod_obj_stock_state(struct obj_cgroup *objcg,
^
1 warning generated.
--
In file included from mm/oom_kill.c:49:
>> mm/slab.h:401:13: warning: unused function 'mod_obj_stock_state'
static void mod_obj_stock_state(struct obj_cgroup
^
fatal error: error in backend: Nested variants found in inline asm string: ' .set push
.set mips64r2
.if ( 0x00 ) != -1)) 0x00 ) != -1)) : ($( static struct ftrace_branch_data __attribute__((__aligned__(4))) __attribute__((__section__("_ftrace_branch"))) __if_trace = $( .func = __func__, .file = "arch/mips/include/asm/bitops.h", .line = 105, $); 0x00 ) != -1)) : $))) ) && ( 0 ); .set push; .set mips64r2; .rept 1; sync 0x00; .endr; .set pop; .else; ; .endif
1: ll $0, $1
or $0, $2
sc $0, $1
beqz $0, 1b
.set pop
'
clang-13: error: clang frontend command failed with exit code 70 (use -v to see invocation)
clang version 13.0.0 (git://gitmirror/llvm_project 9829f5e6b1bca9b61efc629770d28bb9014dec45)
Target: mipsel-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/cross/clang-9829f5e6b1/bin
clang-13: note: diagnostic msg:
Makefile arch block certs crypto drivers fs include init ipc kernel lib mm scripts security sound source usr virt
--
In file included from mm/slab_common.c:33:
>> mm/slab.h:401:13: warning: unused function 'mod_obj_stock_state'
static void mod_obj_stock_state(struct obj_cgroup
^
fatal error: error in backend: Nested variants found in inline asm string: ' .set push
.set mips64r2
.if ( 0x00 ) != -1)) 0x00 ) != -1)) : ($( static struct ftrace_branch_data __attribute__((__aligned__(4))) __attribute__((__section__("_ftrace_branch"))) __if_trace = $( .func = __func__, .file = "arch/mips/include/asm/atomic.h", .line = 153, $); 0x00 ) != -1)) : $))) ) && ( 0 ); .set push; .set mips64r2; .rept 1; sync 0x00; .endr; .set pop; .else; ; .endif
1: ll $0, $1 # atomic_add
addu $0, $2
sc $0, $1
beqz $0, 1b
.set pop
'
clang-13: error: clang frontend command failed with exit code 70 (use -v to see invocation)
clang version 13.0.0 (git://gitmirror/llvm_project 9829f5e6b1bca9b61efc629770d28bb9014dec45)
Target: mipsel-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/cross/clang-9829f5e6b1/bin
clang-13: note: diagnostic msg:
Makefile arch block certs crypto drivers fs include init ipc kernel lib mm scripts security sound source usr virt
--
In file included from mm/slub.c:20:
>> mm/slab.h:401:13: warning: unused function 'mod_obj_stock_state'
static void mod_obj_stock_state(struct obj_cgroup
^
mm/slub.c:1503:29: warning: unused function 'node_nr_slabs'
static inline unsigned long node_nr_slabs(struct kmem_cache_node
^
mm/slub.c:1521:21: warning: unused function 'kmalloc_large_node_hook'
static inline void size_t size, gfp_t flags)
^
fatal error: error in backend: Nested variants found in inline asm string: ' .set push
.set mips64r2
.if ( 0x00 ) != -1)) 0x00 ) != -1)) : ($( static struct ftrace_branch_data __attribute__((__aligned__(4))) __attribute__((__section__("_ftrace_branch"))) __if_trace = $( .func = __func__, .file = "arch/mips/include/asm/bitops.h", .line = 192, $); 0x00 ) != -1)) : $))) ) && ( 0 ); .set push; .set mips64r2; .rept 1; sync 0x00; .endr; .set pop; .else; ; .endif
1: ll $0, $2
or $1, $0, $3
sc $1, $2
beqz $1, 1b
.set pop
'
clang-13: error: clang frontend command failed with exit code 70 (use -v to see invocation)
clang version 13.0.0 (git://gitmirror/llvm_project 9829f5e6b1bca9b61efc629770d28bb9014dec45)
Target: mipsel-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/cross/clang-9829f5e6b1/bin
clang-13: note: diagnostic msg:
Makefile arch block certs crypto drivers fs include init ipc kernel lib mm scripts security sound source usr virt
vim +/mod_obj_stock_state +401 mm/slab.h
400
> 401 static void mod_obj_stock_state(struct obj_cgroup *objcg,
402 struct pglist_data *pgdat, int idx, int nr)
403 {
404 }
405 #endif /* CONFIG_MEMCG_KMEM */
406
---
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:[~2021-04-13 18:33 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-12 22:54 [PATCH v2 0/5] mm/memcg: Reduce kmemcache memory accounting overhead Waiman Long
2021-04-12 22:54 ` [PATCH v2 1/5] mm/memcg: Pass both memcg and lruvec to mod_memcg_lruvec_state() Waiman Long
2021-04-12 22:55 ` [PATCH v2 2/5] mm/memcg: Introduce obj_cgroup_uncharge_mod_state() Waiman Long
2021-04-12 22:55 ` [PATCH v2 3/5] mm/memcg: Cache vmstat data in percpu memcg_stock_pcp Waiman Long
2021-04-12 23:03 ` Shakeel Butt
2021-04-13 18:32 ` kernel test robot [this message]
2021-04-12 22:55 ` [PATCH v2 4/5] mm/memcg: Separate out object stock data into its own struct Waiman Long
2021-04-12 23:07 ` Shakeel Butt
2021-04-12 22:55 ` [PATCH v2 5/5] mm/memcg: Optimize user context object stock access Waiman Long
2021-04-12 23:10 ` Shakeel Butt
2021-04-12 23:14 ` Shakeel Butt
2021-04-13 1:03 ` Waiman Long
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