Kernel panic - not syncing: corrupted stack end detected inside scheduler
CPU: 0 PID: 90 Comm: kworker/u4:3 Not tainted 4.20.0-rc7+ #359
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
 ___preempt_schedule+0x16/0x18
 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock+0x3f/0x50 kernel/locking/spinlock.c:176
 spin_unlock include/linux/spinlock.h:369 [inline]
 page_vma_mapped_walk_done include/linux/rmap.h:220 [inline]
 not_found mm/page_vma_mapped.c:12 [inline]
 page_vma_mapped_walk+0x2ec/0x27f0 mm/page_vma_mapped.c:228
 try_to_unmap_one+0x6d0/0x3b60 mm/rmap.c:1382
 rmap_walk_file+0x80a/0x1190 mm/rmap.c:1879
 rmap_walk+0x22c/0x350 mm/rmap.c:1897
 try_to_unmap+0x1f3/0xa40 mm/rmap.c:1716
 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
 __getblk include/linux/buffer_head.h:380 [inline]
 __breadahead+0x8c/0x160 fs/buffer.c:1330
 sb_breadahead include/linux/buffer_head.h:319 [inline]
 __ext4_get_inode_loc+0xdc4/0x1330 fs/ext4/inode.c:4682
 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
Kernel Offset: disabled
Rebooting in 86400 seconds..