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Linux 5.13-rc6 regression to 5.12.x: kernel OOM and panic during kernel boot in low memory Xen VM's (256MB assigned memory).

To: linux-kernel <linux-kernel@xxxxxxxxxxxxxxx>

From: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>

Date: Thu, 17 Jun 2021 11:26:04 +0200

Cc: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>

Delivery-date: Thu, 17 Jun 2021 09:26:22 +0000

List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

L.S., I just tried to upgrade and test the linux kernel going from the 5.12 kernel series to 5.13-rc6 on my homeserver with Xen, but ran in some trouble. Some VM's boot fine (with more than 256MB memory assigned), but the smaller (memory wise) PVH ones crash during kernel boot due to OOM. Booting VM's with 5.12(.9) kernel still works fine, also when dom0 is running 5.13-rc6 (but it has more memory assigned, so that is not unexpected). The 5.13-rc6'ish kernel is a pull of today, tried both with and without last AKPM's patches, but that makes no difference. Below are stacktraces from a few of the crashing VM's. Attached is the kernel .config Any pointers ? -- Sander [ 0.986515] Bluetooth: HCI UART protocol Intel registered [ 0.986714] Bluetooth: HCI UART protocol AG6XX registered [ 0.986760] usbcore: registered new interface driver bcm203x [ 0.986812] usbcore: registered new interface driver bpa10x [ 0.986854] usbcore: registered new interface driver bfusb [ 0.986907] usbcore: registered new interface driver btusb [ 0.986955] usbcore: registered new interface driver ath3k [ 0.986998] hid: raw HID events driver (C) Jiri Kosina [ 0.987250] usbcore: registered new interface driver usbhid [ 0.987283] usbhid: USB HID core driver [ 0.988461] swapper/0 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=0 [ 0.988530] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.13.0-rc6-20210617-doflr-mac80211debug+ #1 [ 0.988572] Call Trace: [ 0.988587] dump_stack+0x76/0x94 [ 0.988609] dump_header+0x45/0x1d4 [ 0.988627] out_of_memory.cold.44+0x39/0x7e [ 0.988649] __alloc_pages_slowpath.constprop.112+0xb9e/0xc80 [ 0.988678] ? idr_alloc_u32+0x8b/0xc0 [ 0.988697] __alloc_pages+0x318/0x330 [ 0.988715] alloc_page_interleave+0xe/0x70 [ 0.988737] allocate_slab+0x28d/0x330 [ 0.988757] ___slab_alloc+0x41e/0x5c0 [ 0.988777] ? bus_add_driver+0x48/0x1c0 [ 0.988797] ? call_usermodehelper_exec+0xed/0x160 [ 0.988822] ? bus_add_driver+0x48/0x1c0 [ 0.988841] __slab_alloc+0x17/0x30 [ 0.988861] kmem_cache_alloc_trace+0x403/0x440 [ 0.988885] ? si3054_driver_init+0x15/0x15 [ 0.988907] ? rdinit_setup+0x27/0x27 [ 0.988925] bus_add_driver+0x48/0x1c0 [ 0.988944] ? si3054_driver_init+0x15/0x15 [ 0.988963] driver_register+0x66/0xb0 [ 0.988984] ? si3054_driver_init+0x15/0x15 [ 0.989003] do_one_initcall+0x3f/0x1c0 [ 0.989024] kernel_init_freeable+0x21a/0x295 [ 0.989049] ? rest_init+0xa4/0xa4 [ 0.989069] kernel_init+0x5/0xfc [ 0.989086] ret_from_fork+0x22/0x30 [ 0.989105] Mem-Info: [ 0.989116] active_anon:0 inactive_anon:0 isolated_anon:0 [ 0.989116] active_file:0 inactive_file:0 isolated_file:0 [ 0.989116] unevictable:27090 dirty:0 writeback:0 [ 0.989116] slab_reclaimable:2960 slab_unreclaimable:3021 [ 0.989116] mapped:0 shmem:0 pagetables:3 bounce:0 [ 0.989116] free:783 free_pcp:16 free_cma:0 [ 0.989244] Node 0 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:108360kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:5776kB pagetables:12kB all_unreclaimable? no [ 1.178718] Node 0 DMA free:720kB min:148kB low:184kB high:220kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:80kB writepending:0kB present:15996kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 1.178780] xvda: xvda1 xvda2 [ 1.178825] lowmem_reserve[]: 0 146 146 146 [ 1.178828] Node 0 DMA32 free:2208kB min:1472kB low:1840kB high:2208kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:108252kB writepending:0kB present:245760kB managed:149632kB mlocked:0kB bounce:0kB free_pcp:44kB local_pcp:32kB free_cma:0kB [ 1.178833] lowmem_reserve[]: 0 0 0 0 [ 1.178836] Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 1*64kB (U) 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 704kB [ 1.179045] Node 0 DMA32: 2*4kB (ME) 3*8kB (M) 2*16kB (M) 3*32kB (UM) 1*64kB (M) 2*128kB (UE) 2*256kB (UE) 2*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 2016kB [ 1.179110] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 1.179152] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 1.179200] 27099 total pagecache pages [ 1.179227] 0 pages in swap cache [ 1.179244] Swap cache stats: add 0, delete 0, find 0/0 [ 1.179267] Free swap = 0kB [ 1.179282] Total swap = 0kB [ 1.179308] 65439 pages RAM [ 1.179320] 0 pages HighMem/MovableOnly [ 1.179336] 24191 pages reserved [ 1.179352] 0 pages cma reserved [ 1.179382] Tasks state (memory values in pages): [ 1.179403] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 1.179470] Out of memory and no killable processes... [ 1.179494] Kernel panic - not syncing: System is deadlocked on memory [ 1.179521] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.13.0-rc6-20210617-doflr-mac80211debug+ #1 [ 1.179563] Call Trace: [ 1.179576] dump_stack+0x76/0x94 [ 1.179595] panic+0xfc/0x2c0 [ 1.179613] out_of_memory.cold.44+0x5e/0x7e [ 1.179637] __alloc_pages_slowpath.constprop.112+0xb9e/0xc80 [ 1.179669] ? idr_alloc_u32+0x8b/0xc0 [ 1.179686] __alloc_pages+0x318/0x330 [ 1.179704] alloc_page_interleave+0xe/0x70 [ 1.179722] allocate_slab+0x28d/0x330 [ 1.179739] ___slab_alloc+0x41e/0x5c0 [ 1.179755] ? bus_add_driver+0x48/0x1c0 [ 1.179773] ? call_usermodehelper_exec+0xed/0x160 [ 1.179794] ? bus_add_driver+0x48/0x1c0 [ 1.179823] __slab_alloc+0x17/0x30 [ 1.179838] kmem_cache_alloc_trace+0x403/0x440 [ 1.179858] ? si3054_driver_init+0x15/0x15 [ 1.179874] ? rdinit_setup+0x27/0x27 [ 1.179891] bus_add_driver+0x48/0x1c0 [ 1.179915] ? si3054_driver_init+0x15/0x15 [ 1.179950] driver_register+0x66/0xb0 [ 1.179968] ? si3054_driver_init+0x15/0x15 [ 1.179986] do_one_initcall+0x3f/0x1c0 [ 1.180005] kernel_init_freeable+0x21a/0x295 [ 1.180027] ? rest_init+0xa4/0xa4 [ 1.180045] kernel_init+0x5/0xfc [ 1.180063] ret_from_fork+0x22/0x30 [ 1.180185] Kernel Offset: disabled And another VM: [ 1.034613] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 1.034633] Bluetooth: BNEP filters: protocol multicast [ 1.034653] Bluetooth: BNEP socket layer initialized [ 1.034671] Bluetooth: HIDP (Human Interface Emulation) ver 1.2 [ 1.034696] Bluetooth: HIDP socket layer initialized [ 1.034716] 8021q: 802.1Q VLAN Support v1.8 [ 1.034747] Key type dns_resolver registered [ 1.034768] Key type ceph registered [ 1.034865] libceph: loaded (mon/osd proto 15/24) [ 1.035030] IPI shorthand broadcast: enabled [ 1.035060] sched_clock: Marking stable (833426729, 200986153)->(1207636155, -173223273) [ 1.035143] registered taskstats version 1 [ 1.035161] Loading compiled-in X.509 certificates [ 1.035350] Btrfs loaded, crc32c=crc32c-generic, zoned=no [ 1.167932] kworker/u2:0 invoked oom-killer: gfp_mask=0x100cc2(GFP_HIGHUSER), order=0, oom_score_adj=0 [ 1.167989] CPU: 0 PID: 7 Comm: kworker/u2:0 Not tainted 5.13.0-rc6-20210617-doflr-mac80211debug+ #1 [ 1.168026] Workqueue: events_unbound async_run_entry_fn [ 1.168051] Call Trace: [ 1.168064] dump_stack+0x76/0x94 [ 1.168082] dump_header+0x45/0x1d4 [ 1.168098] out_of_memory.cold.44+0x39/0x7e [ 1.168119] __alloc_pages_slowpath.constprop.112+0xb9e/0xc80 [ 1.168145] ? __mod_memcg_lruvec_state+0x1d/0x100 [ 1.168167] __alloc_pages+0x318/0x330 [ 1.168183] pagecache_get_page+0x24b/0x400 [ 1.168199] grab_cache_page_write_begin+0x17/0x30 [ 1.168220] simple_write_begin+0x1e/0x1e0 [ 1.168237] generic_perform_write+0xef/0x1b0 [ 1.168257] __generic_file_write_iter+0x140/0x1b0 [ 1.168279] ? write_buffer+0x32/0x32 [ 1.168296] generic_file_write_iter+0x58/0xa0 [ 1.168316] __kernel_write+0x146/0x2c0 [ 1.168333] kernel_write+0x51/0xf0 [ 1.168350] xwrite+0x2c/0x5f [ 1.168366] ? initrd_load+0x268/0x268 [ 1.168382] do_copy+0xc7/0x109 [ 1.168397] ? initrd_load+0x19e/0x268 [ 1.168412] ? do_name+0x11a/0x269 [ 1.168427] write_buffer+0x22/0x32 [ 1.168443] flush_buffer+0x2f/0x86 [ 1.168458] __gunzip+0x26e/0x315 [ 1.168474] ? bunzip2+0x397/0x397 [ 1.168490] ? initrd_load+0x268/0x268 [ 1.168505] gunzip+0xe/0x11 [ 1.168520] ? initrd_load+0x268/0x268 [ 1.168537] unpack_to_rootfs+0x159/0x28f [ 1.168554] ? initrd_load+0x268/0x268 [ 1.168571] do_populate_rootfs+0x6c/0x160 [ 1.168588] async_run_entry_fn+0x1b/0xa0 [ 1.168603] process_one_work+0x1f6/0x390 [ 1.168620] worker_thread+0x28/0x3d0 [ 1.168638] ? process_one_work+0x390/0x390 [ 1.168654] kthread+0x111/0x130 [ 1.168671] ? kthread_park+0x80/0x80 [ 1.168686] ret_from_fork+0x22/0x30 [ 1.168705] Mem-Info: [ 1.168716] active_anon:0 inactive_anon:0 isolated_anon:0 [ 1.168716] active_file:0 inactive_file:0 isolated_file:0 [ 1.168716] unevictable:28085 dirty:0 writeback:0 [ 1.168716] slab_reclaimable:2883 slab_unreclaimable:4055 [ 1.168716] mapped:0 shmem:0 pagetables:3 bounce:0 [ 1.168716] free:550 free_pcp:9 free_cma:0 [ 1.168818] Node 0 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:112340kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:6256kB pagetables:12kB all_unreclaimable? yes [ 1.168916] Node 0 DMA free:728kB min:148kB low:184kB high:220kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:14472kB writepending:0kB present:15996kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 1.169010] lowmem_reserve[]: 0 146 146 146 [ 1.169028] Node 0 DMA32 free:1472kB min:1472kB low:1840kB high:2208kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:97860kB writepending:0kB present:245760kB managed:149852kB mlocked:0kB bounce:0kB free_pcp:36kB local_pcp:36kB free_cma:0kB [ 1.309647] lowmem_reserve[]: 0 0 0 0 [ 1.309668] Node 0 DMA: 0*4kB 1*8kB (U) 1*16kB (U) 0*32kB 1*64kB (U) 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 728kB [ 1.309720] Node 0 DMA32: 0*4kB 4*8kB (UM) 2*16kB (M) 4*32kB (UME) 2*64kB (ME) 1*128kB (U) 2*256kB (UE) 1*512kB (E) 0*1024kB 0*2048kB 0*4096kB = 1472kB [ 1.309777] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 1.309810] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 1.309843] 28095 total pagecache pages [ 1.309858] 0 pages in swap cache [ 1.309874] Swap cache stats: add 0, delete 0, find 0/0 [ 1.309894] Free swap = 0kB [ 1.309908] Total swap = 0kB [ 1.309922] 65439 pages RAM [ 1.309932] 0 pages HighMem/MovableOnly [ 1.309947] 24136 pages reserved [ 1.309961] 0 pages cma reserved [ 1.309975] Tasks state (memory values in pages): [ 1.309993] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 1.310035] Out of memory and no killable processes... [ 1.310054] Kernel panic - not syncing: System is deadlocked on memory [ 1.310077] CPU: 0 PID: 7 Comm: kworker/u2:0 Not tainted 5.13.0-rc6-20210617-doflr-mac80211debug+ #1 [ 1.310112] Workqueue: events_unbound async_run_entry_fn [ 1.310133] Call Trace: [ 1.310144] dump_stack+0x76/0x94 [ 1.310159] panic+0xfc/0x2c0 [ 1.310176] out_of_memory.cold.44+0x5e/0x7e [ 1.310195] __alloc_pages_slowpath.constprop.112+0xb9e/0xc80 [ 1.310220] ? __mod_memcg_lruvec_state+0x1d/0x100 [ 1.310240] __alloc_pages+0x318/0x330 [ 1.310256] pagecache_get_page+0x24b/0x400 [ 1.310273] grab_cache_page_write_begin+0x17/0x30 [ 1.310293] simple_write_begin+0x1e/0x1e0 [ 1.310309] generic_perform_write+0xef/0x1b0 [ 1.310329] __generic_file_write_iter+0x140/0x1b0 [ 1.310349] ? write_buffer+0x32/0x32 [ 1.310364] generic_file_write_iter+0x58/0xa0 [ 1.310384] __kernel_write+0x146/0x2c0 [ 1.310400] kernel_write+0x51/0xf0 [ 1.310415] xwrite+0x2c/0x5f [ 1.310430] ? initrd_load+0x268/0x268 [ 1.310446] do_copy+0xc7/0x109 [ 1.310461] ? initrd_load+0x19e/0x268 [ 1.310476] ? do_name+0x11a/0x269 [ 1.310491] write_buffer+0x22/0x32 [ 1.310507] flush_buffer+0x2f/0x86 [ 1.310522] __gunzip+0x26e/0x315 [ 1.310538] ? bunzip2+0x397/0x397 [ 1.310554] ? initrd_load+0x268/0x268 [ 1.310569] gunzip+0xe/0x11 [ 1.310584] ? initrd_load+0x268/0x268 [ 1.310600] unpack_to_rootfs+0x159/0x28f [ 1.310616] ? initrd_load+0x268/0x268 [ 1.310632] do_populate_rootfs+0x6c/0x160 [ 1.310647] async_run_entry_fn+0x1b/0xa0 [ 1.310663] process_one_work+0x1f6/0x390 [ 1.310679] worker_thread+0x28/0x3d0 [ 1.510226] ? process_one_work+0x390/0x390 [ 1.510243] kthread+0x111/0x130 [ 1.510259] ? kthread_park+0x80/0x80 [ 1.510275] ret_from_fork+0x22/0x30 [ 1.510336] Kernel Offset: disabled And another one: [ 0.772775] IPVS: ipvs loaded. [ 0.773014] NET: Registered protocol family 10 [ 0.777428] Segment Routing with IPv6 [ 0.777541] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 0.777687] NET: Registered protocol family 17 [ 1.114018] Bridge firewalling registered [ 1.117325] Bluetooth: RFCOMM TTY layer initialized [ 1.117372] Bluetooth: RFCOMM socket layer initialized [ 1.117402] Bluetooth: RFCOMM ver 1.11 [ 1.117421] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 1.117448] Bluetooth: BNEP filters: protocol multicast [ 1.117471] Bluetooth: BNEP socket layer initialized [ 1.117493] Bluetooth: HIDP (Human Interface Emulation) ver 1.2 [ 1.117527] Bluetooth: HIDP socket layer initialized [ 1.117550] 8021q: 802.1Q VLAN Support v1.8 [ 1.117581] Key type dns_resolver registered [ 1.117605] Key type ceph registered [ 1.117725] libceph: loaded (mon/osd proto 15/24) [ 1.117931] IPI shorthand broadcast: enabled [ 1.117973] sched_clock: Marking stable (915120961, 202168371)->(1461715317, -344425985) [ 1.118063] registered taskstats version 1 [ 1.118083] Loading compiled-in X.509 certificates [ 1.118305] Btrfs loaded, crc32c=crc32c-generic, zoned=no [ 1.187460] kworker/u2:0 invoked oom-killer: gfp_mask=0x100cc2(GFP_HIGHUSER), order=0, oom_score_adj=0 [ 1.187513] CPU: 0 PID: 7 Comm: kworker/u2:0 Not tainted 5.13.0-rc6-20210617-doflr-mac80211debug+ #1 [ 1.187555] Workqueue: events_unbound async_run_entry_fn [ 1.187582] Call Trace: [ 1.187597] dump_stack+0x76/0x94 [ 1.187617] dump_header+0x45/0x1d4 [ 1.187637] out_of_memory.cold.44+0x39/0x7e [ 1.187660] __alloc_pages_slowpath.constprop.112+0xb9e/0xc80 [ 1.187692] ? __mod_memcg_lruvec_state+0x1d/0x100 [ 1.187718] __alloc_pages+0x318/0x330 [ 1.187737] pagecache_get_page+0x24b/0x400 [ 1.187756] grab_cache_page_write_begin+0x17/0x30 [ 1.187779] simple_write_begin+0x1e/0x1e0 [ 1.187798] generic_perform_write+0xef/0x1b0 [ 1.187822] __generic_file_write_iter+0x140/0x1b0 [ 1.187848] ? write_buffer+0x32/0x32 [ 1.187866] generic_file_write_iter+0x58/0xa0 [ 1.187890] __kernel_write+0x146/0x2c0 [ 1.187908] kernel_write+0x51/0xf0 [ 1.187926] xwrite+0x2c/0x5f [ 1.187946] ? initrd_load+0x268/0x268 [ 1.187964] do_copy+0xc7/0x109 [ 1.187982] ? initrd_load+0x19e/0x268 [ 1.187999] ? do_name+0x11a/0x269 [ 1.188017] write_buffer+0x22/0x32 [ 1.188034] flush_buffer+0x2f/0x86 [ 1.188052] __gunzip+0x26e/0x315 [ 1.188071] ? bunzip2+0x397/0x397 [ 1.188090] ? initrd_load+0x268/0x268 [ 1.188107] gunzip+0xe/0x11 [ 1.188125] ? initrd_load+0x268/0x268 [ 1.188143] unpack_to_rootfs+0x159/0x28f [ 1.188161] ? initrd_load+0x268/0x268 [ 1.188178] do_populate_rootfs+0x6c/0x160 [ 1.188197] async_run_entry_fn+0x1b/0xa0 [ 1.188214] process_one_work+0x1f6/0x390 [ 1.188234] worker_thread+0x28/0x3d0 [ 1.188253] ? process_one_work+0x390/0x390 [ 1.188271] kthread+0x111/0x130 [ 1.188293] ? kthread_park+0x80/0x80 [ 1.188312] ret_from_fork+0x22/0x30 [ 1.188335] Mem-Info: [ 1.188347] active_anon:0 inactive_anon:0 isolated_anon:0 [ 1.188347] active_file:0 inactive_file:0 isolated_file:0 [ 1.188347] unevictable:28130 dirty:0 writeback:0 [ 1.188347] slab_reclaimable:2879 slab_unreclaimable:4027 [ 1.188347] mapped:0 shmem:0 pagetables:3 bounce:0 [ 1.188347] free:548 free_pcp:8 free_cma:0 [ 1.188465] Node 0 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:112520kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:6224kB pagetables:12kB all_unreclaimable? yes [ 1.188578] Node 0 DMA free:732kB min:148kB low:184kB high:220kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:10428kB writepending:0kB present:15996kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 1.188688] lowmem_reserve[]: 0 146 146 146 [ 1.188711] Node 0 DMA32 free:1460kB min:1472kB low:1840kB high:2208kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:102080kB writepending:0kB present:245760kB managed:149852kB mlocked:0kB bounce:0kB free_pcp:32kB local_pcp:32kB free_cma:0kB [ 1.188819] lowmem_reserve[]: 0 0 0 0 [ 1.188838] Node 0 DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U) 0*32kB 1*64kB (U) 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 732kB [ 1.188899] Node 0 DMA32: 1*4kB (E) 4*8kB (UM) 3*16kB (ME) 3*32kB (ME) 2*64kB (UM) 1*128kB (U) 2*256kB (UE) 1*512kB (E) 0*1024kB 0*2048kB 0*4096kB = 1460kB [ 1.388548] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 1.388596] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 1.388634] 28140 total pagecache pages [ 1.388651] 0 pages in swap cache [ 1.388667] Swap cache stats: add 0, delete 0, find 0/0 [ 1.388689] Free swap = 0kB [ 1.388705] Total swap = 0kB [ 1.388721] 65439 pages RAM [ 1.388733] 0 pages HighMem/MovableOnly [ 1.388749] 24136 pages reserved [ 1.388764] 0 pages cma reserved [ 1.388781] Tasks state (memory values in pages): [ 1.388803] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 1.388871] Out of memory and no killable processes... [ 1.388896] Kernel panic - not syncing: System is deadlocked on memory [ 1.388924] CPU: 0 PID: 7 Comm: kworker/u2:0 Not tainted 5.13.0-rc6-20210617-doflr-mac80211debug+ #1 [ 1.388966] Workqueue: events_unbound async_run_entry_fn [ 1.388994] Call Trace: [ 1.389007] dump_stack+0x76/0x94 [ 1.389032] panic+0xfc/0x2c0 [ 1.389054] out_of_memory.cold.44+0x5e/0x7e [ 1.389078] __alloc_pages_slowpath.constprop.112+0xb9e/0xc80 [ 1.389108] ? __mod_memcg_lruvec_state+0x1d/0x100 [ 1.389131] __alloc_pages+0x318/0x330 [ 1.389150] pagecache_get_page+0x24b/0x400 [ 1.389169] grab_cache_page_write_begin+0x17/0x30 [ 1.389192] simple_write_begin+0x1e/0x1e0 [ 1.389210] generic_perform_write+0xef/0x1b0 [ 1.389232] __generic_file_write_iter+0x140/0x1b0 [ 1.389256] ? write_buffer+0x32/0x32 [ 1.389274] generic_file_write_iter+0x58/0xa0 [ 1.389299] __kernel_write+0x146/0x2c0 [ 1.389318] kernel_write+0x51/0xf0 [ 1.389335] xwrite+0x2c/0x5f [ 1.389353] ? initrd_load+0x268/0x268 [ 1.389370] do_copy+0xc7/0x109 [ 1.389388] ? initrd_load+0x19e/0x268 [ 1.389404] ? do_name+0x11a/0x269 [ 1.389421] write_buffer+0x22/0x32 [ 1.389450] flush_buffer+0x2f/0x86 [ 1.389465] __gunzip+0x26e/0x315 [ 1.389482] ? bunzip2+0x397/0x397 [ 1.389498] ? initrd_load+0x268/0x268 [ 1.389513] gunzip+0xe/0x11 [ 1.389544] ? initrd_load+0x268/0x268 [ 1.389562] unpack_to_rootfs+0x159/0x28f [ 1.389581] ? initrd_load+0x268/0x268 [ 1.389599] do_populate_rootfs+0x6c/0x160 [ 1.389618] async_run_entry_fn+0x1b/0xa0 [ 1.389636] process_one_work+0x1f6/0x390 [ 1.389657] worker_thread+0x28/0x3d0 [ 1.389676] ? process_one_work+0x390/0x390 [ 1.389698] kthread+0x111/0x130 [ 1.389716] ? kthread_park+0x80/0x80 [ 1.389733] ret_from_fork+0x22/0x30 [ 1.389803] Kernel Offset: disabled

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