Kernel panic - not syncing: corrupted stack end detected inside scheduler
CPU: 0 PID: 2536 Comm: kworker/u4:4 Not tainted 4.20.0+ #396
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/0x55f kernel/panic.c:189
 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:lock_acquire+0x4/0x520 kernel/locking/lockdep.c:3830
Code: fb ff ff 4c 89 e7 e8 db a2 61 00 e9 fd fb ff ff e8 b1 a2 61 00 e9 ab fd ff ff e8 a7 a2 61 00 e9 ed fc ff ff 66 90 55 48 89 e5 <41> 57 4d 89 cf 41 56 45 89 c6 41 55 41 89 cd 48 b9 00 00 00 00 00
RSP: 0018:ffff8880a16fc5e0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffff8880a16d4380 RBX: ffff88809da0aac0 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8979ee00
RBP: ffff8880a16fc5e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000006 R11: ffff8880ae62dc7b R12: 1ffff110142df8c0
R13: ffff88821b6e8a80 R14: ffff8880a16fc660 R15: ffff88805e5ac980
 rcu_lock_acquire include/linux/rcupdate.h:223 [inline]
 rcu_read_lock include/linux/rcupdate.h:607 [inline]
 list_lru_count_one+0xc1/0x450 mm/list_lru.c:193
 list_lru_shrink_count include/linux/list_lru.h:122 [inline]
 super_cache_count+0x1b9/0x2e0 fs/super.c:145
 do_shrink_slab+0x1b1/0xd30 mm/vmscan.c:469
 shrink_slab+0x389/0x8c0 mm/vmscan.c:710
 shrink_node+0x647/0x17f0 mm/vmscan.c:2757
 shrink_zones mm/vmscan.c:2987 [inline]
 do_try_to_free_pages+0x3df/0x12a0 mm/vmscan.c:3049
 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3265
 __perform_reclaim mm/page_alloc.c:3920 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:3942 [inline]
 __alloc_pages_slowpath+0xa5a/0x2db0 mm/page_alloc.c:4335
 __alloc_pages_nodemask+0xa89/0xde0 mm/page_alloc.c:4549
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1396 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2664
 fallback_alloc+0x203/0x2e0 mm/slab.c:3206
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3274
 __do_cache_alloc mm/slab.c:3343 [inline]
 slab_alloc mm/slab.c:3371 [inline]
 kmem_cache_alloc+0x1f6/0x730 mm/slab.c:3539
 mempool_alloc_slab+0x44/0x60 mm/mempool.c:505
 mempool_alloc+0x193/0x4a0 mm/mempool.c:385
 bvec_alloc+0x12a/0x2d0 block/bio.c:218
 bio_alloc_bioset+0x46e/0x6f0 block/bio.c:509
 bio_alloc include/linux/bio.h:393 [inline]
 io_submit_init_bio fs/ext4/page-io.c:374 [inline]
 io_submit_add_bh fs/ext4/page-io.c:399 [inline]
 ext4_bio_write_page+0x114f/0x1a37 fs/ext4/page-io.c:506
 mpage_submit_page+0x15e/0x270 fs/ext4/inode.c:2237
 mpage_process_page_bufs+0x50a/0x600 fs/ext4/inode.c:2348
 mpage_prepare_extent_to_map+0xea5/0x19c0 fs/ext4/inode.c:2710
 ext4_writepages+0x1405/0x4170 fs/ext4/inode.c:2837
 do_writepages+0x9a/0x1a0 mm/page-writeback.c:2335
 __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..