lowmem_reserve[]: 0 2818 6321 6321 Node 0 DMA32 free:43940kB min:30052kB low:37564kB high:45076kB active_anon:4252kB inactive_anon:8kB active_file:732kB inactive_file:552kB unevictable:0kB writepending:24kB present:3129332kB managed:2888792kB mlocked:0kB kernel_stack:320kB pagetables:104kB bounce:0kB free_pcp:700kB local_pcp:700kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:30284kB min:37364kB low:46704kB high:56044kB active_anon:15504kB inactive_anon:760kB active_file:516kB inactive_file:580kB unevictable:0kB writepending:4kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6752kB pagetables:1484kB bounce:0kB free_pcp:88kB local_pcp:40kB free_cma:0kB Kernel panic - not syncing: corrupted stack end detected inside scheduler CPU: 0 PID: 90 Comm: kworker/u4:3 Not tainted 4.20.0-rc7+ #248 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: writeback wb_workfn (flush-8:0) Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d3/0x2c6 lib/dump_stack.c:113 panic+0x2ad/0x55c kernel/panic.c:188 schedule_debug kernel/sched/core.c:3285 [inline] __schedule+0x1ec6/0x1ed0 kernel/sched/core.c:3394 preempt_schedule_common+0x1f/0xe0 kernel/sched/core.c:3596 preempt_schedule+0x4d/0x60 kernel/sched/core.c:3622 lowmem_reserve[]: 0 0 0 0 ___preempt_schedule+0x16/0x18 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB arch_tlbbatch_flush+0x2ea/0x360 arch/x86/mm/tlb.c:826 try_to_unmap_flush+0x71/0xf0 mm/rmap.c:588 shrink_page_list+0x6d23/0xc620 mm/vmscan.c:1500 Node 0 DMA32: 82*4kB (UME) 59*8kB (UM) 69*16kB (UM) 50*32kB (UME) 34*64kB (UME) 33*128kB (UME) 11*256kB (UME) 19*512kB (UM) 9*1024kB (UME) 1*2048kB (E) 3*4096kB (UM) = 46000kB Node 0 Normal: 465*4kB (UMEH) 935*8kB (UMEH) 191*16kB (UMEH) 76*32kB (MEH) 24*64kB (MEH) 6*128kB (UMH) 3*256kB (UM) 3*512kB (UM) 3*1024kB (UM) 0*2048kB 0*4096kB = 22508kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 551 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342850 pages reserved 0 pages cma reserved Unreclaimable slab info: Name Used Total pid_2 142KB 160KB TIPC 15KB 21KB SCTPv6 35KB 43KB DCCPv6 17KB 21KB DCCP 16KB 20KB bridge_fdb_cache 18KB 23KB fib6_nodes 111KB 116KB ip6_dst_cache 412KB 412KB RAWv6 107KB 110KB UDPv6 3KB 3KB shrink_inactive_list+0x77b/0x1c60 mm/vmscan.c:1963 shrink_list mm/vmscan.c:2275 [inline] shrink_node_memcg+0x78b/0x18f0 mm/vmscan.c:2540 TCPv6 23KB 35KB nf_conntrack 1KB 7KB shrink_node+0x3bc/0x16b0 mm/vmscan.c:2755 sd_ext_cdb 0KB 3KB shrink_zones mm/vmscan.c:2987 [inline] do_try_to_free_pages+0x3df/0x1290 mm/vmscan.c:3049 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3264 scsi_sense_cache 1056KB 1060KB virtio_scsi_cmd 16KB 16KB __perform_reclaim mm/page_alloc.c:3773 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3795 [inline] __alloc_pages_slowpath+0xa48/0x2df0 mm/page_alloc.c:4185 sgpool-128 8KB 8KB __alloc_pages_nodemask+0xad8/0xea0 mm/page_alloc.c:4393 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5b0 mm/filemap.c:924 pagecache_get_page+0x396/0xf00 mm/filemap.c:1554 find_or_create_page include/linux/pagemap.h:322 [inline] ext4_mb_load_buddy_gfp+0xa80/0x1e70 fs/ext4/mballoc.c:1194 ext4_mb_load_buddy fs/ext4/mballoc.c:1241 [inline] ext4_mb_regular_allocator+0x634/0x1590 fs/ext4/mballoc.c:2190 ext4_mb_new_blocks+0x1de3/0x4840 fs/ext4/mballoc.c:4538 ext4_ext_map_blocks+0x2eef/0x6180 fs/ext4/extents.c:4404 ext4_map_blocks+0x8f7/0x1b60 fs/ext4/inode.c:636 mpage_map_one_extent fs/ext4/inode.c:2480 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2533 [inline] ext4_writepages+0x2573/0x4180 fs/ext4/inode.c:2884 do_writepages+0x9a/0x1a0 mm/page-writeback.c:2328 __writeback_single_inode+0x20a/0x1660 fs/fs-writeback.c:1316 writeback_sb_inodes+0x71f/0x1210 fs/fs-writeback.c:1580 __writeback_inodes_wb+0x1b9/0x340 fs/fs-writeback.c:1649 wb_writeback+0xa73/0xfc0 fs/fs-writeback.c:1758 wb_check_start_all fs/fs-writeback.c:1882 [inline] wb_do_writeback fs/fs-writeback.c:1908 [inline] wb_workfn+0xee9/0x1790 fs/fs-writeback.c:1942 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds..