sysfs-read-allocations

linux-5.10.txt

cat 3327322 [033] 1030457.149132: kmem:mm_page_alloc_zone_locked: page=0x2cebcc0 pfn=47103168 order=6 migratetype=0 percpu_refill=0
        ffffffff9061b05c get_page_from_freelist+0xdac ([kernel.kallsyms])
        ffffffff9061b05c get_page_from_freelist+0xdac ([kernel.kallsyms])
        ffffffff9061c5b1 __alloc_pages_nodemask+0x161 ([kernel.kallsyms])
        ffffffff905edcb8 kmalloc_order+0x28 ([kernel.kallsyms])
        ffffffff905edd29 kmalloc_order_trace+0x19 ([kernel.kallsyms])
        ffffffff906fd1e9 proc_sys_call_handler+0xb9 ([kernel.kallsyms])
        ffffffff9065cae5 new_sync_read+0x115 ([kernel.kallsyms])
        ffffffff9065ebf4 vfs_read+0xf4 ([kernel.kallsyms])
        ffffffff9065f0bf ksys_read+0x5f ([kernel.kallsyms])
        ffffffff90d28973 __noinstr_text_start+0x33 ([kernel.kallsyms])
        ffffffff90e0007c entry_SYSCALL_64_after_hwframe+0x44 ([kernel.kallsyms])
            7f2339e42461 read+0x11 (/lib/x86_64-linux-gnu/libc-2.28.so)

cat 3327322 [033] 1030457.149178: kmem:mm_page_alloc_zone_locked: page=0x2cebcc0 pfn=47103168 order=6 migratetype=0 percpu_refill=0
        ffffffff9061b05c get_page_from_freelist+0xdac ([kernel.kallsyms])
        ffffffff9061b05c get_page_from_freelist+0xdac ([kernel.kallsyms])
        ffffffff9061c5b1 __alloc_pages_nodemask+0x161 ([kernel.kallsyms])
        ffffffff905edcb8 kmalloc_order+0x28 ([kernel.kallsyms])
        ffffffff905edd29 kmalloc_order_trace+0x19 ([kernel.kallsyms])
        ffffffff906fd1e9 proc_sys_call_handler+0xb9 ([kernel.kallsyms])
        ffffffff9065cae5 new_sync_read+0x115 ([kernel.kallsyms])
        ffffffff9065ebf4 vfs_read+0xf4 ([kernel.kallsyms])
        ffffffff9065f0bf ksys_read+0x5f ([kernel.kallsyms])
        ffffffff90d28973 __noinstr_text_start+0x33 ([kernel.kallsyms])
        ffffffff90e0007c entry_SYSCALL_64_after_hwframe+0x44 ([kernel.kallsyms])
            7f2339e42461 read+0x11 (/lib/x86_64-linux-gnu/libc-2.28.so)
                       0 [unknown] ([unknown])

linux-5.4.txt

cat 1134053 [071] 10289723.416462: kmem:mm_page_alloc_zone_locked: page=0x10744ce pfn=17253582 order=1 migratetype=0 percpu_refill=0
        ffffffffb97fb34e get_page_from_freelist+0xe7e ([kernel.kallsyms])
        ffffffffb97fb34e get_page_from_freelist+0xe7e ([kernel.kallsyms])
        ffffffffb97fc856 __alloc_pages_nodemask+0x166 ([kernel.kallsyms])
        ffffffffb9816576 alloc_slab_page+0x176 ([kernel.kallsyms])
        ffffffffb9816755 allocate_slab+0x75 ([kernel.kallsyms])
        ffffffffb981828e ___slab_alloc+0x40e ([kernel.kallsyms])
        ffffffffb98194df kmem_cache_alloc+0x1ff ([kernel.kallsyms])
        ffffffffb968ea67 prepare_creds+0x37 ([kernel.kallsyms])
        ffffffffb9839f6c do_faccessat+0x3c ([kernel.kallsyms])
        ffffffffb96022f4 do_syscall_64+0x64 ([kernel.kallsyms])
        ffffffffba00007c entry_SYSCALL_64_after_hwframe+0x44 ([kernel.kallsyms])
            7ff5a7065417 [unknown] (/lib/x86_64-linux-gnu/ld-2.28.so)
            7ff5a7063650 [unknown] (/lib/x86_64-linux-gnu/ld-2.28.so)
                      40 [unknown] ([unknown])

cat 1134053 [071] 10289723.416925: kmem:mm_page_alloc_zone_locked: page=0xf37728 pfn=15955752 order=3 migratetype=2 percpu_refill=0
        ffffffffb97fb34e get_page_from_freelist+0xe7e ([kernel.kallsyms])
        ffffffffb97fb34e get_page_from_freelist+0xe7e ([kernel.kallsyms])
        ffffffffb97fc856 __alloc_pages_nodemask+0x166 ([kernel.kallsyms])
        ffffffffb9816576 alloc_slab_page+0x176 ([kernel.kallsyms])
        ffffffffb9816755 allocate_slab+0x75 ([kernel.kallsyms])
        ffffffffb981828e ___slab_alloc+0x40e ([kernel.kallsyms])
        ffffffffb98194df kmem_cache_alloc+0x1ff ([kernel.kallsyms])
        ffffffffb98baa06 proc_alloc_inode+0x16 ([kernel.kallsyms])
        ffffffffb985a22d alloc_inode+0x1d ([kernel.kallsyms])
        ffffffffb985a2d3 new_inode+0x13 ([kernel.kallsyms])
        ffffffffb98c64e6 proc_sys_make_inode+0x26 ([kernel.kallsyms])
        ffffffffb98c7894 proc_sys_lookup+0xd4 ([kernel.kallsyms])
        ffffffffb9848434 __lookup_slow+0x94 ([kernel.kallsyms])
        ffffffffb984ae41 walk_component+0x1e1 ([kernel.kallsyms])
        ffffffffb984b267 link_path_walk.part.0+0x2d7 ([kernel.kallsyms])
        ffffffffb984bba2 path_openat+0xa2 ([kernel.kallsyms])
        ffffffffb984f618 do_filp_open+0x88 ([kernel.kallsyms])
        ffffffffb983aabf do_sys_open+0x17f ([kernel.kallsyms])
        ffffffffb96022f4 do_syscall_64+0x64 ([kernel.kallsyms])
        ffffffffba00007c entry_SYSCALL_64_after_hwframe+0x44 ([kernel.kallsyms])
            7ff5a6f691ae open64+0x4e (/lib/x86_64-linux-gnu/libc-2.28.so)