On Tue, Jan 23, 2024 at 12:24:22PM +0100, Michal Hocko wrote:
On Tue 23-01-24 11:08:28, Joakim Tjernlund wrote: [...]
Mar 9 12:52:40 xr kern.warn kernel: [ 1066.001379] Mem-Info: Mar 9 12:52:40 xr kern.warn kernel: [ 1066.003665] active_anon:18 inactive_anon:2435 isolated_anon:0 Mar 9 12:52:40 xr kern.warn kernel: [ 1066.003665] active_file:1 inactive_file:0 isolated_file:0 Mar 9 12:52:40 xr kern.warn kernel: [ 1066.003665] unevictable:267 dirty:0 writeback:0 Mar 9 12:52:40 xr kern.warn kernel: [ 1066.003665] slab_reclaimable:384 slab_unreclaimable:2223 Mar 9 12:52:40 xr kern.warn kernel: [ 1066.003665] mapped:1 shmem:0 pagetables:309 bounce:0 Mar 9 12:52:41 xr kern.warn kernel: [ 1066.003665] kernel_misc_reclaimable:0 Mar 9 12:52:41 xr kern.warn kernel: [ 1066.003665] free:1054 free_pcp:24 free_cma:0 Mar 9 12:52:41 xr kern.warn kernel: [ 1066.037938] Node 0 active_anon:72kB inactive_anon:9740kB active_file:4kB inactive_file:0kB unevictable:1068kB isolated(anon):0kB isolated(file):0kB mapped:4kB dirty:0kB writeback:0kB shmem:0kB writeback_tmp:0kB kernel_stack:9 Mar 9 12:52:41 xr kern.warn kernel: [ 1066.061723] Normal free:4216kB min:128kB low:160kB high:192kB reserved_highatomic:4096KB active_anon:72kB inactive_anon:9740kB active_file:4kB inactive_file:0kB unevictable:1068kB writepending:0kB present:36864kB managed:2944 Mar 9 12:52:41 xr kern.warn kernel: [ 1066.087595] lowmem_reserve[]: 0 0 Mar 9 12:52:41 xr kern.warn kernel: [ 1066.090918] Normal: 206*4kB (MEH) 198*8kB (UMEH) 79*16kB (UMEH) 13*32kB (H) 2*64kB (H) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 4216kB Mar 9 12:52:41 xr kern.warn kernel: [ 1066.104104] 269 total pagecache pages Mar 9 12:52:41 xr kern.warn kernel: [ 1066.107768] 9216 pages RAM
OK, so this is really a tiny system (36MB) and having 4MB in highatomic reserves is clearly too much. So this matches the patch you are referencing and it migh help you indeed.
Ok, now queued up, thanks.
greg k-h