Kernel panic - not syncing: corrupted stack end detected inside scheduler
CPU: 0 PID: 21 Comm: kworker/u4:1 Not tainted 4.20.0 #386
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_irq+0x87/0x110 kernel/sched/core.c:3699
 retint_kernel+0x1b/0x2d
RIP: 0010:debug_lockdep_rcu_enabled+0x77/0x90 kernel/rcu/update.c:250
Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 1c 8b 05 b6 85 ae 08 85 c0 74 07 e8 29 ff ff ff <5d> c3 31 c0 5d c3 e8 9e b8 59 00 eb ad e8 97 b8 59 00 eb dd 0f 1f
RSP: 0018:ffff8881d9449528 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: 0000000000409000 RCX: ffffffff81b66ff0
RDX: 0000000000000000 RSI: 0000000000000752 RDI: ffff8881d9442dfc
RBP: ffff8881d9449528 R08: ffff8881d9442580 R09: fffff94000e223fe
R10: fffff94000e223fe R11: ffffea0007111ff3 R12: 1ffff1103b2892a8
R13: 0000000000000000 R14: ffffffff88337fc0 R15: 0000000000000752
 ___might_sleep+0x6e/0x300 kernel/sched/core.c:6113
 rmap_walk_file+0x73f/0x1190 mm/rmap.c:1874
 rmap_walk+0x22c/0x350 mm/rmap.c:1897
 try_to_unmap+0x1f3/0xa40 mm/rmap.c:1716
init invoked oom-killer: gfp_mask=0x6200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0
init cpuset=/ mems_allowed=0
 shrink_page_list+0x72b8/0xc620 mm/vmscan.c:1334
 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
 shrink_node+0x3bc/0x16b0 mm/vmscan.c:2755
 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
 __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
 __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]
 grow_dev_page fs/buffer.c:947 [inline]
 grow_buffers fs/buffer.c:1016 [inline]
 __getblk_slow fs/buffer.c:1043 [inline]
 __getblk_gfp+0x3aa/0xd50 fs/buffer.c:1320
 sb_getblk include/linux/buffer_head.h:325 [inline]
 __ext4_get_inode_loc+0x407/0x1330 fs/ext4/inode.c:4597
 ext4_get_inode_loc fs/ext4/inode.c:4710 [inline]
 ext4_reserve_inode_write+0xfa/0x260 fs/ext4/inode.c:5868
 ext4_mark_inode_dirty+0x19c/0xb20 fs/ext4/inode.c:6020
 __ext4_ext_dirty+0x1f5/0x260 fs/ext4/extents.c:165
 ext4_ext_insert_extent+0x118d/0x45a0 fs/ext4/extents.c:2144
 ext4_ext_map_blocks+0x32fc/0x6180 fs/ext4/extents.c:4430
 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
CPU: 1 PID: 1 Comm: init Not tainted 4.20.0 #386
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d3/0x2c6 lib/dump_stack.c:113
 dump_header+0x27b/0xf72 mm/oom_kill.c:441
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3519 [inline]
 __alloc_pages_slowpath+0x2343/0x2df0 mm/page_alloc.c:4229
 __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
 page_cache_read mm/filemap.c:2312 [inline]
 filemap_fault+0x1595/0x25f0 mm/filemap.c:2496
 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6292
 __do_fault+0x100/0x6b0 mm/memory.c:2996
 do_read_fault mm/memory.c:3408 [inline]
 do_fault mm/memory.c:3534 [inline]
 handle_pte_fault mm/memory.c:3765 [inline]
 __handle_mm_fault+0x3956/0x5670 mm/memory.c:3889
 handle_mm_fault+0x54f/0xc70 mm/memory.c:3926
 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
 __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143
RIP: 0033:0x7f09b1c30dd3
Code: Bad RIP value.
RSP: 002b:00007ffdc86f7228 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00007ffdc86f73d0 RCX: 00007f09b1c30dd3
RDX: 0000000000000000 RSI: 00007ffdc86f7580 RDI: 000000000000000b
RBP: 00007ffdc86f7580 R08: 00007ffdc86f7600 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00007ffdc86f7960 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..