Re: 5.8.0rc3 page allocation failure: order:0, mode:0x40810

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On Sat, Jul 04, 2020 at 01:21:05AM -0600, Chris Murphy wrote:
> Hi,
> 
> This seems to be a one off - I'm not even sure what was happening at
> the time. Possibly running a qemu-kvm VM.
> 
> 5.8.0-0.rc3.1.fc33.x86_64+debug
> i7-2820QM
> MemTotal:        8021304 kB
> $ swapon
> NAME       TYPE       SIZE USED PRIO
> /dev/sda5  partition 10.4G   0B   -2
> /dev/zram0 partition  3.8G   9M  100
> $ zramctl
> NAME       ALGORITHM DISKSIZE  DATA COMPR TOTAL STREAMS MOUNTPOINT
> /dev/zram0 lzo-rle       3.8G  7.8M  2.3M  4.5M       8 [SWAP]
> 
> 
> 
> 
> [126841.385050] swapper/2: page allocation failure: order:0,
> mode:0x40810(GFP_NOWAIT|__GFP_COMP|__GFP_RECLAIMABLE),

This is one for Dan; he decided to use GFP_NOWAIT in commit
0abdd7a81b7e3fd781d7fabcca49501852bba17e

> nodemask=(null),cpuset=/,mems_allowed=0
> [126841.385059] CPU: 2 PID: 0 Comm: swapper/2 Not tainted
> 5.8.0-0.rc3.1.fc33.x86_64+debug #1
> [126841.385061] Hardware name: Apple Inc.
> MacBookPro8,2/Mac-94245A3940C91C80, BIOS
> MBP81.88Z.0050.B00.1804101331 04/10/18
> [126841.385062] Call Trace:
> [126841.385064]  <IRQ>
> [126841.385071]  dump_stack+0x92/0xc8
> [126841.385076]  warn_alloc.cold+0x75/0xd9
> [126841.385083]  __alloc_pages_slowpath.constprop.0+0x10ce/0x1110
> [126841.385090]  ? lock_acquire+0xb0/0x400
> [126841.385095]  __alloc_pages_nodemask+0x3c4/0x450
> [126841.385099]  alloc_slab_page+0x345/0x790
> [126841.385103]  allocate_slab+0x473/0x570
> [126841.385106]  ___slab_alloc+0x4bb/0x7d0
> [126841.385109]  ? radix_tree_node_alloc.constprop.0+0x44/0xe0
> [126841.385115]  ? __module_address.part.0+0xe/0xe0
> [126841.385117]  ? __module_address.part.0+0xe/0xe0
> [126841.385120]  ? radix_tree_node_alloc.constprop.0+0x44/0xe0
> [126841.385122]  ? __slab_alloc+0x46/0x90
> [126841.385123]  __slab_alloc+0x46/0x90
> [126841.385126]  ? radix_tree_node_alloc.constprop.0+0x44/0xe0
> [126841.385128]  kmem_cache_alloc+0x2c8/0x310
> [126841.385131]  radix_tree_node_alloc.constprop.0+0x44/0xe0
> [126841.385134]  radix_tree_insert+0xd1/0x1b0
> [126841.385139]  add_dma_entry+0xb4/0x1a0
> [126841.385145]  dma_map_single_attrs.constprop.0+0xcb/0x150 [tg3]
> [126841.385149]  tg3_alloc_rx_data+0xaa/0x190 [tg3]
> [126841.385153]  tg3_poll_work+0x1d7/0x10b0 [tg3]
> [126841.385160]  tg3_poll_msix+0x39/0x1c0 [tg3]
> [126841.385164]  net_rx_action+0x150/0x4f0
> [126841.385170]  __do_softirq+0xdb/0x4a2
> [126841.385175]  asm_call_on_stack+0xf/0x20
> [126841.385176]  </IRQ>
> [126841.385179]  do_softirq_own_stack+0x80/0x90
> [126841.385182]  irq_exit_rcu+0xe0/0x120
> [126841.385185]  common_interrupt+0xaa/0x210
> [126841.385188]  asm_common_interrupt+0x1e/0x40
> [126841.385191] RIP: 0010:cpuidle_enter_state+0xb8/0x440
> [126841.385194] Code: 69 6b e8 eb 04 7b ff 49 89 c7 66 66 66 66 90 31
> ff e8 bc 27 7b ff 80 7c 24 0f 00 0f 85 0d 02 00 00 e8 3c 3c 8b ff fb
> 66 66 90 <66> 66 90 45 85 e4 0f 88 14 02 00 00 49 63 d4 4c 2b 7c 24 10
> 48 8d
> [126841.385196] RSP: 0018:ffffab2f0009fe80 EFLAGS: 00000246
> [126841.385198] RAX: 0000000000000000 RBX: ffffcb2eff201400 RCX:
> 000000000000001f
> [126841.385199] RDX: 0000000000000000 RSI: 0000000037a6deab RDI:
> ffffffff949749b4
> [126841.385201] RBP: ffffffff95c18e80 R08: 0000735c8fb2993f R09:
> 0000000000000008
> [126841.385202] R10: 0000000000000000 R11: 0000000000000016 R12:
> 0000000000000002
> [126841.385204] R13: ffffffff95c18e80 R14: 0000000000000002 R15:
> 0000735c8fb2993f
> [126841.385208]  ? cpuidle_enter_state+0xb4/0x440
> [126841.385213]  cpuidle_enter+0x29/0x40
> [126841.385217]  do_idle+0x1f6/0x2e0
> [126841.385220]  cpu_startup_entry+0x19/0x20
> [126841.385224]  start_secondary+0x15c/0x190
> [126841.385227]  secondary_startup_64+0xb6/0xc0
> [126841.385233] Mem-Info:
> [126841.385237] active_anon:141209 inactive_anon:596767 isolated_anon:0
>                  active_file:122875 inactive_file:993681 isolated_file:9
>                  unevictable:2594 dirty:110075 writeback:0
>                  slab_reclaimable:42804 slab_unreclaimable:46586
>                  mapped:65915 shmem:676937 pagetables:2719 bounce:0
>                  free:25946 free_pcp:2811 free_cma:0
> [126841.385241] Node 0 active_anon:564836kB inactive_anon:2387068kB
> active_file:491500kB inactive_file:3974724kB unevictable:10376kB
> isolated(anon):0kB isolated(file):36kB mapped:263660kB dirty:440300kB
> writeback:0kB shmem:2707748kB shmem_thp: 0kB shmem_pmdmapped: 0kB
> anon_thp: 0kB writeback_tmp:0kB all_unreclaimable? no
> [126841.385242] Node 0 DMA free:14320kB min:128kB low:160kB high:192kB
> reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB
> active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB
> present:15988kB managed:15360kB mlocked:0kB kernel_stack:0kB
> pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
> [126841.385246] lowmem_reserve[]: 0 2048 7776 7776 7776
> [126841.385249] Node 0 DMA32 free:40352kB min:17772kB low:22212kB
> high:26652kB reserved_highatomic:0KB active_anon:0kB
> inactive_anon:18908kB active_file:0kB inactive_file:2063284kB
> unevictable:0kB writepending:96256kB present:2255864kB
> managed:2140908kB mlocked:0kB kernel_stack:0kB pagetables:0kB
> bounce:0kB free_pcp:4188kB local_pcp:36kB free_cma:0kB
> [126841.385253] lowmem_reserve[]: 0 0 5727 5727 5727
> [126841.385255] Node 0 Normal free:49112kB min:49680kB low:62100kB
> high:74520kB reserved_highatomic:0KB active_anon:564748kB
> inactive_anon:2368400kB active_file:491756kB inactive_file:1911480kB
> unevictable:10700kB writepending:343392kB present:6027264kB
> managed:5865036kB mlocked:1800kB kernel_stack:6768kB
> pagetables:10876kB bounce:0kB free_pcp:6896kB local_pcp:328kB
> free_cma:0kB
> [126841.385259] lowmem_reserve[]: 0 0 0 0 0
> [126841.385261] Node 0 DMA: 0*4kB 0*8kB 1*16kB (U) 1*32kB (U) 1*64kB
> (U) 1*128kB (U) 1*256kB (U) 1*512kB (U) 1*1024kB (U) 2*2048kB (UM)
> 2*4096kB (M) = 14320kB
> [126841.385269] Node 0 DMA32: 1*4kB (E) 3*8kB (UME) 2*16kB (UE) 3*32kB
> (UME) 7*64kB (E) 3*128kB (UE) 6*256kB (ME) 5*512kB (ME) 2*1024kB (UM)
> 2*2048kB (UM) 7*4096kB (M) = 39900kB
> [126841.385277] Node 0 Normal: 366*4kB (UME) 413*8kB (UME) 76*16kB
> (UME) 18*32kB (UME) 20*64kB (UME) 16*128kB (UME) 10*256kB (UME)
> 8*512kB (ME) 5*1024kB (UE) 2*2048kB (UM) 6*4096kB (M) = 50336kB
> [126841.385289] Node 0 hugepages_total=0 hugepages_free=0
> hugepages_surp=0 hugepages_size=2048kB
> [126841.385290] 1793872 total pagecache pages
> [126841.385294] 45 pages in swap cache
> [126841.385296] Swap cache stats: add 14529, delete 14484, find 3855/4431
> [126841.385297] Free swap  = 14869404kB
> [126841.385299] Total swap = 14892188kB
> [126841.385300] 2074779 pages RAM
> [126841.385301] 0 pages HighMem/MovableOnly
> [126841.385302] 69453 pages reserved
> [126841.385304] 0 pages cma reserved
> [126841.385305] 0 pages hwpoisoned
> [126841.385307] SLUB: Unable to allocate memory on node -1,
> gfp=0x800(GFP_NOWAIT)
> [126841.385309]   cache: radix_tree_node, object size: 576, buffer
> size: 584, default order: 2, min order: 0
> [126841.385311]   node 0: slabs: 392, objs: 10976, free: 0
> [126841.385312] DMA-API: cacheline tracking ENOMEM, dma-debug disabled
> 
> 
> Entire dmesg:
> https://bugzilla.redhat.com/attachment.cgi?id=1699909
> Downstream bug (same as above)
> https://bugzilla.redhat.com/show_bug.cgi?id=1853795
> 
> 
> 
> 
> -- 
> Chris Murphy
> 




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