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* [lkp] [+4218 bytes kernel size regression] [i386-tinyconfig] [865e23483f] linux-next
@ 2020-07-22  7:48 kernel test robot
  2020-07-22 14:11 ` Johannes Weiner
  0 siblings, 1 reply; 3+ messages in thread
From: kernel test robot @ 2020-07-22  7:48 UTC (permalink / raw)
  To: kbuild-all

[-- Attachment #1: Type: text/plain, Size: 29601 bytes --]


FYI, we noticed a +4218 bytes kernel size regression due to commit:

commit: 865e23483ff94043ca26eba00422fe2b245d3dfc (linux-next)
https://github.com/hnaz/linux-mm master

Details as below (size data is obtained by `nm --size-sort vmlinux`):

d517b0be: ipc/shm.c: Remove the superfluous break
865e2348: linux-next

+------------------------------------------+----------+----------+-------+
|                  symbol                  | d517b0be | 865e2348 | delta |
+------------------------------------------+----------+----------+-------+
| bzImage                                  | 442720   | 445280   | 2560  |
| nm.t.do_execveat_common                  | 0        | 1462     | 1462  |
| nm.T.__ia32_sys_ioctl                    | 13       | 1193     | 1180  |
| nm.T.seq_read_iter                       | 0        | 774      | 774   |
| nm.T.__xas_store                         | 0        | 765      | 765   |
| nm.T.intel_pmu_lbr_read_64               | 0        | 718      | 718   |
| nm.T.intel_pmu_arch_lbr_init             | 0        | 619      | 619   |
| nm.t.intel_pmu_store_lbr                 | 0        | 485      | 485   |
| nm.t.bdi_init                            | 0        | 381      | 381   |
| nm.T.vfs_utimes                          | 0        | 322      | 322   |
| nm.T.mul_u64_u64_div_u64                 | 0        | 259      | 259   |
| nm.T.copy_thread                         | 0        | 238      | 238   |
| nm.T.intel_pmu_lbr_restore               | 0        | 223      | 223   |
| nm.t.perf_event_text_poke_output         | 0        | 219      | 219   |
| nm.T.__close_range                       | 0        | 201      | 201   |
| nm.t.__intel_pmu_lbr_restore             | 0        | 199      | 199   |
| nm.T.dma_map_page_attrs                  | 0        | 170      | 170   |
| nm.T.device_link_add                     | 556      | 715      | 159   |
| nm.T.intel_pmu_lbr_read_32               | 0        | 156      | 156   |
| nm.T._anon_inode_getfile                 | 0        | 148      | 148   |
| nm.t.devlink_add_symlinks                | 0        | 141      | 141   |
| nm.t.devlink_remove_symlinks             | 0        | 138      | 138   |
| nm.T.__ia32_sys_getdents64               | 13       | 150      | 137   |
| nm.T.intel_pmu_lbr_save                  | 0        | 131      | 131   |
| nm.T.intel_pmu_lbr_enable_all            | 117      | 241      | 124   |
| nm.T.intel_pmu_init                      | 4080     | 4203     | 123   |
| nm.t.__wait_on_page_locked_async         | 0        | 121      | 121   |
| nm.t.text_poke_bp_batch                  | 242      | 363      | 121   |
| nm.T.get_callchain_entry                 | 0        | 120      | 120   |
| nm.T.perf_event_text_poke                | 0        | 119      | 119   |
| nm.T.__receive_fd                        | 0        | 118      | 118   |
| nm.T.vfs_read                            | 148      | 265      | 117   |
| nm.t.rdlbr_all                           | 0        | 115      | 115   |
| nm.T.vfs_write                           | 194      | 305      | 111   |
| nm.t._anon_inode_getfd                   | 0        | 98       | 98    |
| nm.T.device_is_dependent                 | 0        | 98       | 98    |
| nm.T.vfs_generate_unique_id              | 0        | 92       | 92    |
| nm.T.generic_file_buffered_read          | 1275     | 1362     | 87    |
| nm.T.copy_fpregs_to_fpstate              | 0        | 82       | 82    |
| nm.t.wrlbr_all                           | 0        | 82       | 82    |
| nm.t.vfs_readv                           | 0        | 81       | 81    |
| nm.T.__ia32_sys_lseek                    | 10       | 91       | 81    |
| nm.T.intel_pmu_lbr_add                   | 152      | 232      | 80    |
| nm.t.intel_get_event_constraints         | 446      | 526      | 80    |
| nm.t.intel_pmu_arch_lbr_save             | 0        | 76       | 76    |
| nm.T.intel_pmu_lbr_reset_64              | 0        | 75       | 75    |
| nm.d.arch_lbr_ctl_map                    | 0        | 72       | 72    |
| nm.t.intel_pmu_arch_lbr_restore          | 0        | 70       | 70    |
| nm.t.__devm_ioremap_resource             | 131      | 200      | 69    |
| nm.T.sched_dl_overflow                   | 587      | 655      | 68    |
| nm.t.really_probe                        | 485      | 550      | 65    |
| nm.r.arch_lbr_br_type_map                | 0        | 64       | 64    |
| nm.T.clear_bdi_congested                 | 0        | 64       | 64    |
| nm.T.unshare_fd                          | 0        | 64       | 64    |
| nm.T.release_lbr_buffers                 | 0        | 62       | 62    |
| nm.d.devlink_class                       | 0        | 60       | 60    |
| nm.t.state_synced_show                   | 0        | 59       | 59    |
| nm.T.vm_area_dup                         | 58       | 117      | 59    |
| nm.T.vfs_fchown                          | 0        | 57       | 57    |
| nm.t.__kobject_del                       | 0        | 55       | 55    |
| nm.T.__checkparam_dl                     | 92       | 147      | 55    |
| nm.T.x86_perf_get_lbr                    | 0        | 54       | 54    |
| nm.t.inode_io_list_del_locked            | 0        | 53       | 53    |
| nm.t.devlink_class_init                  | 0        | 52       | 52    |
| nm.W.memcmp_pages                        | 0        | 51       | 51    |
| nm.T.thread_group_exited                 | 0        | 51       | 51    |
| nm.T.__ia32_sys_fchmod                   | 8        | 59       | 51    |
| nm.T.console_on_rootfs                   | 37       | 88       | 51    |
| nm.T.__ia32_sys_dup                      | 4        | 54       | 50    |
| nm.t.intel_set_masks                     | 0        | 49       | 49    |
| nm.t.auto_remove_on_show                 | 0        | 48       | 48    |
| nm.t.redirty_tail_locked                 | 0        | 48       | 48    |
| nm.t.intel_pmu_arch_lbr_read_xsave       | 0        | 46       | 46    |
| nm.T.dma_direct_map_sg                   | 81       | 127      | 46    |
| nm.T._do_fork                            | 298      | 344      | 46    |
| nm.T.sched_init                          | 304      | 348      | 44    |
| nm.T.sched_set_normal                    | 0        | 42       | 42    |
| nm.t.status_show                         | 0        | 42       | 42    |
| nm.D.vlbr_constraint                     | 0        | 40       | 40    |
| nm.t.x86_nofsgsbase_setup                | 0        | 40       | 40    |
| nm.t.is_sb_event                         | 0        | 38       | 38    |
| nm.t.pick_file                           | 0        | 37       | 37    |
| nm.T.errseq_scrape                       | 0        | 36       | 36    |
| nm.T.get_fs_root_rcu                     | 0        | 35       | 35    |
| nm.T.tasklet_setup                       | 0        | 35       | 35    |
| nm.T.dma_map_resource                    | 0        | 34       | 34    |
| nm.T.intel_pmu_lbr_init_skl              | 71       | 105      | 34    |
| nm.T.copy_dynamic_supervisor_to_kernel   | 0        | 33       | 33    |
| nm.T.copy_kernel_to_dynamic_supervisor   | 0        | 33       | 33    |
| nm.T.dma_map_sg_attrs                    | 0        | 32       | 32    |
| nm.T.idtentry_enter_nmi                  | 0        | 32       | 32    |
| nm.T.intel_pmu_lbr_reset_32              | 0        | 32       | 32    |
| nm.T.intel_pmu_lbr_disable_all           | 39       | 71       | 32    |
| nm.T.intel_pmu_lbr_swap_task_ctx         | 65       | 97       | 32    |
| nm.t.queue_io                            | 104      | 135      | 31    |
| nm.T.find_get_pages_range_tag            | 326      | 357      | 31    |
| nm.T.dup_fd                              | 357      | 388      | 31    |
| nm.t.intel_pmu_lbr_filter                | 388      | 419      | 31    |
| nm.T.__kernel_write                      | 127      | 156      | 29    |
| nm.t.runtime_pm_show                     | 0        | 28       | 28    |
| nm.t.sync_state_only_show                | 0        | 28       | 28    |
| nm.T.__kernel_read                       | 122      | 149      | 27    |
| nm.T.xas_find_marked                     | 395      | 422      | 27    |
| nm.T.sched_set_fifo                      | 0        | 26       | 26    |
| nm.T.sched_set_fifo_low                  | 0        | 26       | 26    |
| nm.T.idtentry_exit_nmi                   | 0        | 25       | 25    |
| nm.T.intel_pmu_lbr_del                   | 98       | 123      | 25    |
| nm.T.intel_pmu_lbr_init_hsw              | 136      | 161      | 25    |
| nm.T.set_bdi_congested                   | 0        | 24       | 24    |
| nm.d.xstate_comp_offsets                 | 40       | 64       | 24    |
| nm.d.xstate_offsets                      | 40       | 64       | 24    |
| nm.d.xstate_sizes                        | 40       | 64       | 24    |
| nm.T.fpu__init_system_xstate             | 1140     | 1164     | 24    |
| nm.t.direct_splice_actor                 | 23       | 45       | 22    |
| nm.T.vfs_create_mount                    | 140      | 162      | 22    |
| nm.t.create_lbr_kmem_cache               | 0        | 21       | 21    |
| nm.d.devlink_attrs                       | 0        | 20       | 20    |
| nm.d.devlink_class_intf                  | 0        | 20       | 20    |
| nm.r.devlink_group                       | 0        | 20       | 20    |
| nm.d.platform_dev_group                  | 0        | 20       | 20    |
| nm.t.free_vmap_block                     | 57       | 77       | 20    |
| nm.D.x86_pmu                             | 336      | 356      | 20    |
| nm.t.find_get_context                    | 407      | 427      | 20    |
| nm.T.device_del                          | 494      | 514      | 20    |
| nm.d.cpuhp_hp_states                     | 4280     | 4300     | 20    |
| nm.T.anon_inode_getfd_secure             | 0        | 19       | 19    |
| nm.T.anon_inode_getfile_secure           | 0        | 19       | 19    |
| nm.t.sw_perf_event_destroy               | 75       | 94       | 19    |
| nm.t.intel_pmu_arch_lbr_reset            | 0        | 18       | 18    |
| nm.t.__device_link_del                   | 54       | 72       | 18    |
| nm.T.device_links_check_suppliers        | 188      | 206      | 18    |
| nm.t.clone_mnt                           | 420      | 438      | 18    |
| nm.T.idtentry_exit                       | 0        | 17       | 17    |
| nm.t.numa_node_show                      | 0        | 17       | 17    |
| nm.t.do_splice_to                        | 117      | 134      | 17    |
| nm.t.x86_pmu_enable                      | 497      | 514      | 17    |
| nm.t.identify_cpu                        | 737      | 754      | 17    |
| nm.d.dev_attr_auto_remove_on             | 0        | 16       | 16    |
| nm.d.dev_attr_numa_node                  | 0        | 16       | 16    |
| nm.d.dev_attr_runtime_pm                 | 0        | 16       | 16    |
| nm.d.dev_attr_state_synced               | 0        | 16       | 16    |
| nm.d.dev_attr_status                     | 0        | 16       | 16    |
| nm.d.dev_attr_sync_state_only            | 0        | 16       | 16    |
| nm.T.release_dentry_name_snapshot        | 35       | 51       | 16    |
| nm.T.tag_pages_for_writeback             | 207      | 223      | 16    |
| nm.t.cr4_set_bits                        | 0        | 15       | 15    |
| nm.t.intel_pmu_arch_lbr_xrstors          | 0        | 15       | 15    |
| nm.t.intel_pmu_arch_lbr_xsaves           | 0        | 15       | 15    |
| nm.t.platform_dev_attrs_visible          | 0        | 15       | 15    |
| nm.T.device_links_driver_bound           | 253      | 268      | 15    |
| nm.t.free_task_ctx_data                  | 0        | 14       | 14    |
| nm.T.bdi_put                             | 22       | 36       | 14    |
| nm.t._free_event                         | 431      | 445      | 14    |
| nm.T.check_bugs                          | 1443     | 1457     | 14    |
| nm.t.perf_event_alloc                    | 1637     | 1651     | 14    |
| nm.T.__ia32_sys_close_range              | 0        | 13       | 13    |
| nm.T.xa_extract                          | 493      | 506      | 13    |
| nm.t.__setup_x86_nofsgsbase_setup        | 0        | 12       | 12    |
| nm.T.xfeature_size                       | 0        | 12       | 12    |
| nm.t.device_link_drop_managed            | 33       | 45       | 12    |
| nm.t.__device_links_no_driver            | 101      | 113      | 12    |
| nm.T.device_release_driver_internal      | 272      | 284      | 12    |
| nm.T.do_splice                           | 1162     | 1174     | 12    |
| nm.R.sys_call_table                      | 1760     | 1772     | 12    |
| nm.t.__setup_str_x86_nofsgsbase_setup    | 0        | 11       | 11    |
| nm.T.sched_trace_rq_nr_running           | 0        | 11       | 11    |
| nm.T.vfs_fchmod                          | 0        | 11       | 11    |
| nm.T.fpu__resume_cpu                     | 49       | 60       | 11    |
| nm.t.kobject_release                     | 57       | 68       | 11    |
| nm.T.fpu__init_cpu_xstate                | 90       | 101      | 11    |
| nm.T.perf_event_ksymbol                  | 167      | 178      | 11    |
| nm.T.intel_pmu_setup_lbr_filter          | 467      | 478      | 11    |
| nm.t.writeback_sb_inodes                 | 628      | 639      | 11    |
| nm.T.__lock_page_async                   | 0        | 10       | 10    |
| nm.T.dma_sync_sg_for_cpu                 | 0        | 10       | 10    |
| nm.T.dma_sync_sg_for_device              | 0        | 10       | 10    |
| nm.T.dma_sync_single_for_cpu             | 0        | 10       | 10    |
| nm.T.dma_sync_single_for_device          | 0        | 10       | 10    |
| nm.T.dma_unmap_page_attrs                | 0        | 10       | 10    |
| nm.T.dma_unmap_resource                  | 0        | 10       | 10    |
| nm.T.dma_unmap_sg_attrs                  | 0        | 10       | 10    |
| nm.T.find_vm_area                        | 13       | 22       | 9     |
| nm.t.free_ctx                            | 23       | 32       | 9     |
| nm.T.remove_vm_area                      | 55       | 64       | 9     |
| nm.T.device_links_no_driver              | 73       | 82       | 9     |
| nm.T.devm_kmalloc                        | 74       | 83       | 9     |
| nm.T.device_links_busy                   | 86       | 95       | 9     |
| nm.T.device_links_driver_cleanup         | 95       | 104      | 9     |
| nm.T.device_links_unbind_consumers       | 122      | 131      | 9     |
| nm.t.inherit_event                       | 378      | 387      | 9     |
| nm.T.copy_fpstate_to_sigframe            | 527      | 536      | 9     |
| nm.t.devlink_dev_release                 | 0        | 8        | 8     |
| nm.d.devlink_groups                      | 0        | 8        | 8     |
| nm.T.put_callchain_entry                 | 0        | 8        | 8     |
| nm.b.vfs_identifier_offset               | 0        | 8        | 8     |
| nm.b.vfs_last_identifier                 | 0        | 8        | 8     |
| nm.d.mnt_id_ida                          | 8        | 16       | 8     |
| nm.T.exc_page_fault                      | 100      | 108      | 8     |
| nm.t.alloc_super                         | 563      | 571      | 8     |
| nm.D.cpu_hw_events                       | 3800     | 3808     | 8     |
| nm.t.intel_pmu_arch_lbr_read             | 0        | 7        | 7     |
| nm.T.vmalloc_init                        | 277      | 284      | 7     |
| nm.T.ida_alloc_range                     | 638      | 645      | 7     |
| nm.W.__ia32_sys_fsinfo                   | 0        | 6        | 6     |
| nm.W.__ia32_sys_watch_mount              | 0        | 6        | 6     |
| nm.W.__ia32_sys_watch_sb                 | 0        | 6        | 6     |
| nm.r.idt_descr                           | 0        | 6        | 6     |
| nm.t.device_link_put_kref                | 29       | 35       | 6     |
| nm.t.tasklet_action_common               | 93       | 99       | 6     |
| nm.t.__device_links_queue_sync_state     | 103      | 109      | 6     |
| nm.T.wb_workfn                           | 538      | 544      | 6     |
| nm.T.devm_kfree                          | 34       | 39       | 5     |
| nm.T.x86_release_hardware                | 35       | 40       | 5     |
| nm.T.exit_mmap                           | 204      | 209      | 5     |
| nm.t.alloc_vfsmnt                        | 264      | 269      | 5     |
| nm.t.perf_read                           | 489      | 494      | 5     |
| nm.d.nr_text_poke_events                 | 0        | 4        | 4     |
| nm.D.sysctl_sched_dl_period_max          | 0        | 4        | 4     |
| nm.D.sysctl_sched_dl_period_min          | 0        | 4        | 4     |
| nm.d.platform_dev_attrs                  | 12       | 16       | 4     |
| nm.d.resend_tasklet                      | 20       | 24       | 4     |
| nm.T.tasklet_init                        | 27       | 31       | 4     |
| nm.T.exc_invalid_tss                     | 54       | 58       | 4     |
| nm.T.exc_segment_not_present             | 54       | 58       | 4     |
| nm.T.exc_stack_segment                   | 54       | 58       | 4     |
| nm.t.__get_vm_area_node                  | 220      | 224      | 4     |
| nm.T.x86_perf_event_set_period           | 442      | 446      | 4     |
| nm.T.idtentry_enter                      | 0        | 3        | 3     |
| nm.T.exc_coprocessor_error               | 35       | 38       | 3     |
| nm.T.exc_simd_coprocessor_error          | 35       | 38       | 3     |
| nm.T.sysvec_kvm_posted_intr_wakeup_ipi   | 38       | 41       | 3     |
| nm.T.exc_device_not_available            | 54       | 57       | 3     |
| nm.T.unshare_files                       | 69       | 72       | 3     |
| nm.t.device_reorder_to_tail              | 82       | 85       | 3     |
| nm.T.iret_error                          | 88       | 91       | 3     |
| nm.T.exc_bounds                          | 127      | 130      | 3     |
| nm.T.exc_alignment_check                 | 128      | 131      | 3     |
| nm.T.ksys_unshare                        | 421      | 424      | 3     |
| nm.t.copy_process                        | 3366     | 3369     | 3     |
| nm.t.__device_link_free_srcu             | 44       | 46       | 2     |
| nm.T.exc_coproc_segment_overrun          | 48       | 50       | 2     |
| nm.T.exc_overflow                        | 48       | 50       | 2     |
| nm.T.exc_divide_error                    | 49       | 51       | 2     |
| nm.T.exc_invalid_op                      | 76       | 78       | 2     |
| nm.T.vread                               | 412      | 414      | 2     |
| nm.T.call_trace_sched_update_nr_running  | 0        | 1        | 1     |
| nm.T.__wait_rcu_gp                       | 159      | 160      | 1     |
| nm.T.__mark_inode_dirty                  | 292      | 293      | 1     |
| nm.T.exc_spurious_interrupt_bug          | 19       | 18       | -1    |
| nm.T.sysvec_kvm_posted_intr_ipi          | 45       | 44       | -1    |
| nm.T.sysvec_kvm_posted_intr_nested_ipi   | 45       | 44       | -1    |
| nm.t.enqueue_task                        | 47       | 46       | -1    |
| nm.T.common_interrupt                    | 102      | 101      | -1    |
| nm.T.exc_general_protection              | 336      | 335      | -1    |
| nm.T.vwrite                              | 368      | 367      | -1    |
| nm.W.mem_encrypt_free_decrypted_mem      | 1        | 0        | -1    |
| nm.T.do_execve                           | 23       | 20       | -3    |
| nm.T.resume_console                      | 35       | 32       | -3    |
| nm.t.call_usermodehelper_exec_work       | 106      | 103      | -3    |
| nm.t.__schedule                          | 643      | 640      | -3    |
| nm.t.dma_dummy_map_sg                    | 3        | 0        | -3    |
| nm.t.dma_dummy_supported                 | 3        | 0        | -3    |
| nm.t.get_rr_interval_idle                | 3        | 0        | -3    |
| nm.T.idtentry_enter_cond_rcu             | 3        | 0        | -3    |
| nm.R.dl_sched_class                      | 68       | 64       | -4    |
| nm.R.fair_sched_class                    | 68       | 64       | -4    |
| nm.R.idle_sched_class                    | 68       | 64       | -4    |
| nm.R.rt_sched_class                      | 68       | 64       | -4    |
| nm.D.platform_bus                        | 240      | 236      | -4    |
| nm.d.cpu_devices                         | 248      | 244      | -4    |
| nm.d.rtc_device                          | 288      | 284      | -4    |
| nm.t.pebs_update_state                   | 541      | 537      | -4    |
| nm.t.dma_dummy_map_page                  | 4        | 0        | -4    |
| nm.b.exclusive_console                   | 4        | 0        | -4    |
| nm.T.rd_doload                           | 4        | 0        | -4    |
| nm.T.free_initmem                        | 30       | 25       | -5    |
| nm.t.__writeback_single_inode            | 221      | 216      | -5    |
| nm.T.__ia32_sys_pidfd_getfd              | 260      | 255      | -5    |
| nm.t.shrink_node                         | 553      | 548      | -5    |
| nm.T.account_page_redirty                | 66       | 60       | -6    |
| nm.T.account_page_dirtied                | 111      | 105      | -6    |
| nm.t.dma_dummy_mmap                      | 6        | 0        | -6    |
| nm.R.idt_descr                           | 6        | 0        | -6    |
| nm.T.yield_to                            | 114      | 107      | -7    |
| nm.t.try_enable_new_console              | 210      | 203      | -7    |
| nm.b.exclusive_console_stop_seq          | 8        | 0        | -8    |
| nm.d.umh_list                            | 8        | 0        | -8    |
| nm.T.software_node_unregister_node_group | 38       | 26       | -12   |
| nm.t.wb_writeback                        | 249      | 237      | -12   |
| nm.D.noop_backing_dev_info               | 372      | 360      | -12   |
| nm.d.umh_list_lock                       | 12       | 0        | -12   |
| nm.T.do_exit                             | 1521     | 1508     | -13   |
| nm.T.do_execveat                         | 19       | 5        | -14   |
| nm.t.shrink_page_list                    | 1922     | 1908     | -14   |
| nm.T.legacy_clone_args_valid             | 16       | 0        | -16   |
| nm.t.load_ramdisk                        | 23       | 6        | -17   |
| nm.T.idtentry_exit_cond_rcu              | 17       | 0        | -17   |
| nm.T.__ia32_sys_clone                    | 116      | 98       | -18   |
| nm.T.ksys_fchown                         | 81       | 62       | -19   |
| nm.t.release_bdi                         | 86       | 67       | -19   |
| nm.T.copy_mount_options                  | 134      | 115      | -19   |
| nm.r.platform_dev_group                  | 20       | 0        | -20   |
| nm.T.set_wb_congested                    | 20       | 0        | -20   |
| nm.T.check_preempt_curr                  | 87       | 66       | -21   |
| nm.T.do_execve_file                      | 22       | 0        | -22   |
| nm.T.exc_double_fault                    | 104      | 80       | -24   |
| nm.t.wb_congested_put                    | 25       | 0        | -25   |
| nm.T.__close_fd                          | 54       | 27       | -27   |
| nm.T.dma_can_mmap                        | 33       | 5        | -28   |
| nm.T.register_console                    | 440      | 412      | -28   |
| nm.t.wb_congested                        | 28       | 0        | -28   |
| nm.T.dma_get_merge_boundary              | 32       | 3        | -29   |
| nm.T.d_path                              | 198      | 168      | -30   |
| nm.T.exc_int3                            | 223      | 192      | -31   |
| nm.t.rdlbr_from                          | 32       | 0        | -32   |
| nm.T.dma_max_mapping_size                | 38       | 5        | -33   |
| nm.T.page_cache_async_readahead          | 148      | 115      | -33   |
| nm.t.wrlbr_from                          | 33       | 0        | -33   |
| nm.t.pidfd_poll                          | 81       | 46       | -35   |
| nm.T.dma_free_attrs                      | 73       | 37       | -36   |
| nm.T.generic_fadvise                     | 528      | 492      | -36   |
| nm.T.dma_get_required_mask               | 46       | 9        | -37   |
| nm.t.redirty_tail                        | 37       | 0        | -37   |
| nm.t.setup_irq_thread                    | 145      | 107      | -38   |
| nm.t.writeback_single_inode              | 184      | 146      | -38   |
| nm.T.inode_io_list_del                   | 63       | 24       | -39   |
| nm.T.exc_debug                           | 222      | 182      | -40   |
| nm.T.exc_nmi                             | 240      | 200      | -40   |
| nm.T.dma_need_sync                       | 48       | 5        | -43   |
| nm.T.dma_supported                       | 50       | 5        | -45   |
| nm.T.dma_cache_sync                      | 56       | 10       | -46   |
| nm.T.kobject_del                         | 63       | 17       | -46   |
| nm.t.call_usermodehelper_exec_async      | 244      | 193      | -51   |
| nm.T.memcmp_pages                        | 51       | 0        | -51   |
| nm.T.ksys_dup                            | 52       | 0        | -52   |
| nm.t.umh_clean_and_save_pid              | 52       | 0        | -52   |
| nm.t.intel_pmu_disable_event             | 274      | 221      | -53   |
| nm.T.dma_direct_map_page                 | 55       | 0        | -55   |
| nm.T.ksys_fchmod                         | 56       | 0        | -56   |
| nm.t.move_expired_inodes                 | 305      | 245      | -60   |
| nm.T.clear_wb_congested                  | 60       | 0        | -60   |
| nm.t.unshare_fd                          | 62       | 0        | -62   |
| nm.t.write_pipe_buf                      | 62       | 0        | -62   |
| nm.T.dma_alloc_attrs                     | 75       | 10       | -65   |
| nm.T.anon_inode_getfd                    | 84       | 17       | -67   |
| nm.T.__switch_to                         | 336      | 268      | -68   |
| nm.t.do_splice_from                      | 71       | 0        | -71   |
| nm.T.do_utimes                           | 265      | 190      | -75   |
| nm.t.copy_fpregs_to_fpstate              | 76       | 0        | -76   |
| nm.R.dma_dummy_ops                       | 76       | 0        | -76   |
| nm.T.dma_get_sgtable_attrs               | 83       | 5        | -78   |
| nm.T.dma_mmap_attrs                      | 83       | 5        | -78   |
| nm.T.vfs_readv                           | 81       | 0        | -81   |
| nm.T.anon_inode_getfile                  | 101      | 17       | -84   |
| nm.T.bdi_alloc                           | 132      | 44       | -88   |
| nm.T.ksys_lseek                          | 89       | 0        | -89   |
| nm.T.get_perf_callchain                  | 389      | 296      | -93   |
| nm.t.device_is_dependent                 | 95       | 0        | -95   |
| nm.t.intel_pmu_enable_event              | 528      | 432      | -96   |
| nm.T.__exit_umh                          | 102      | 0        | -102  |
| nm.T.intel_pmu_lbr_reset                 | 142      | 36       | -106  |
| nm.t.default_bdi_init                    | 152      | 42       | -110  |
| nm.T.console_unlock                      | 168      | 47       | -121  |
| nm.t.new_sync_read                       | 122      | 0        | -122  |
| nm.T.cputime_adjust                      | 395      | 269      | -126  |
| nm.t.new_sync_write                      | 129      | 0        | -129  |
| nm.T.call_usermodehelper_setup_file      | 136      | 0        | -136  |
| nm.T.ksys_getdents64                     | 146      | 0        | -146  |
| nm.T.intel_pmu_store_pebs_lbrs           | 258      | 84       | -174  |
| nm.t.umh_pipe_setup                      | 187      | 0        | -187  |
| nm.T.fork_usermode_blob                  | 191      | 0        | -191  |
| nm.T.copy_thread_tls                     | 238      | 0        | -238  |
| nm.t.utimes_common                       | 262      | 0        | -262  |
| nm.T.intel_pmu_lbr_sched_task            | 554      | 149      | -405  |
| nm.t.cgwb_bdi_init                       | 409      | 0        | -409  |
| nm.t.default_file_splice_read            | 451      | 0        | -451  |
| nm.T.seq_read                            | 709      | 236      | -473  |
| nm.T.xas_store                           | 783      | 31       | -752  |
| nm.T.intel_pmu_lbr_read                  | 833      | 46       | -787  |
| nm.T.ksys_ioctl                          | 1187     | 0        | -1187 |
| nm.t.__do_execve_file                    | 1520     | 0        | -1520 |
+------------------------------------------+----------+----------+-------+



Thanks

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [lkp] [+4218 bytes kernel size regression] [i386-tinyconfig] [865e23483f] linux-next
  2020-07-22  7:48 [lkp] [+4218 bytes kernel size regression] [i386-tinyconfig] [865e23483f] linux-next kernel test robot
@ 2020-07-22 14:11 ` Johannes Weiner
  2020-07-23  2:43   ` Andrew Morton
  0 siblings, 1 reply; 3+ messages in thread
From: Johannes Weiner @ 2020-07-22 14:11 UTC (permalink / raw)
  To: kbuild-all

[-- Attachment #1: Type: text/plain, Size: 1017 bytes --]

On Wed, Jul 22, 2020 at 03:48:32PM +0800, kernel test robot wrote:
> 
> FYI, we noticed a +4218 bytes kernel size regression due to commit:
> 
> commit: 865e23483ff94043ca26eba00422fe2b245d3dfc (linux-next)
> https://github.com/hnaz/linux-mm master
> 
> Details as below (size data is obtained by `nm --size-sort vmlinux`):
> 
> d517b0be: ipc/shm.c: Remove the superfluous break
> 865e2348: linux-next

This commit in this tree is a snapshot of the entire linux-next patch
stack. Bisecting and flagging that particular commit to this
particular CC list is probably not useful.

Andrew would know best, but to analyze/bisect the MM tree for
regressions, it'd probably be best to only do the individual commits
between the `origin' (the Linus base) and `linux-next' commits.

(There are also individual mm commits post linux-next{,-rejects}, but
they include debug patches and private mm tree things that may not now
or may never be slated for upstream inclusion, so probably best to
skip those?)

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [lkp] [+4218 bytes kernel size regression] [i386-tinyconfig] [865e23483f] linux-next
  2020-07-22 14:11 ` Johannes Weiner
@ 2020-07-23  2:43   ` Andrew Morton
  0 siblings, 0 replies; 3+ messages in thread
From: Andrew Morton @ 2020-07-23  2:43 UTC (permalink / raw)
  To: kbuild-all

[-- Attachment #1: Type: text/plain, Size: 1004 bytes --]

On Wed, 22 Jul 2020 10:11:29 -0400 Johannes Weiner <hannes@cmpxchg.org> wrote:

> On Wed, Jul 22, 2020 at 03:48:32PM +0800, kernel test robot wrote:
> > 
> > FYI, we noticed a +4218 bytes kernel size regression due to commit:
> > 
> > commit: 865e23483ff94043ca26eba00422fe2b245d3dfc (linux-next)
> > https://github.com/hnaz/linux-mm master
> > 
> > Details as below (size data is obtained by `nm --size-sort vmlinux`):
> > 
> > d517b0be: ipc/shm.c: Remove the superfluous break
> > 865e2348: linux-next
> 
> This commit in this tree is a snapshot of the entire linux-next patch
> stack. Bisecting and flagging that particular commit to this
> particular CC list is probably not useful.
> 
> Andrew would know best, but to analyze/bisect the MM tree for
> regressions, it'd probably be best to only do the individual commits
> between the `origin' (the Linus base) and `linux-next' commits.
> 

The same regression should be present in Stephen's linux-next tree, so
bisect that?

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2020-07-23  2:43 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-07-22  7:48 [lkp] [+4218 bytes kernel size regression] [i386-tinyconfig] [865e23483f] linux-next kernel test robot
2020-07-22 14:11 ` Johannes Weiner
2020-07-23  2:43   ` Andrew Morton

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