device bridge_slave_1 left promiscuous mode
bridge0: port 2(bridge_slave_1) entered disabled state
device bridge_slave_0 left promiscuous mode
bridge0: port 1(bridge_slave_0) entered disabled state
Kernel panic - not syncing: corrupted stack end detected inside scheduler

CPU: 0 PID: 34 Comm: kworker/u4:2 Not tainted 4.19.0-rc7+ #130
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+0x1c4/0x2b4 lib/dump_stack.c:113
 panic+0x238/0x4e7 kernel/panic.c:184
 schedule_debug kernel/sched/core.c:3286 [inline]
 __schedule+0x1ec6/0x1ed0 kernel/sched/core.c:3395
 preempt_schedule_common+0x1f/0xd0 kernel/sched/core.c:3597
 preempt_schedule+0x4d/0x60 kernel/sched/core.c:3623
 ___preempt_schedule+0x16/0x18
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
 _raw_spin_unlock_irqrestore+0xbb/0xd0 kernel/locking/spinlock.c:184
 __debug_object_init+0x57d/0x1290 lib/debugobjects.c:419
 debug_object_init+0x16/0x20 lib/debugobjects.c:432
 __init_work+0x50/0x60 kernel/workqueue.c:504
 drain_all_pages+0x2c4/0x680 mm/page_alloc.c:2664
 __alloc_pages_direct_reclaim mm/page_alloc.c:3804 [inline]
 __alloc_pages_slowpath+0xa9d/0x2d80 mm/page_alloc.c:4191
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946
 pagecache_get_page+0x396/0xf00 mm/filemap.c:1577
 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+0x3b0/0xd50 fs/buffer.c:1320
 sb_getblk include/linux/buffer_head.h:325 [inline]
 ext4_read_block_bitmap_nowait+0x314/0x1f50 fs/ext4/balloc.c:427
 ext4_read_block_bitmap+0x1f/0x90 fs/ext4/balloc.c:527
 ext4_mb_mark_diskspace_used+0x19e/0x10d0 fs/ext4/mballoc.c:2938
 ext4_mb_new_blocks+0xea5/0x4840 fs/ext4/mballoc.c:4555
 ext4_ext_map_blocks+0x2f14/0x6330 fs/ext4/extents.c:4467
 ext4_map_blocks+0x8f7/0x1b50 fs/ext4/inode.c:636
 mpage_map_one_extent fs/ext4/inode.c:2450 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2503 [inline]
 ext4_writepages+0x2622/0x4110 fs/ext4/inode.c:2854
 do_writepages+0x9a/0x1a0 mm/page-writeback.c:2340
 __writeback_single_inode+0x20a/0x1620 fs/fs-writeback.c:1323
 writeback_sb_inodes+0x71f/0x11d0 fs/fs-writeback.c:1587
 __writeback_inodes_wb+0x1b9/0x340 fs/fs-writeback.c:1656
 wb_writeback+0xa73/0xfc0 fs/fs-writeback.c:1765
 wb_check_start_all fs/fs-writeback.c:1889 [inline]
 wb_do_writeback fs/fs-writeback.c:1915 [inline]
 wb_workfn+0xee9/0x1790 fs/fs-writeback.c:1949
 process_one_work+0xc90/0x1b90 kernel/workqueue.c:2153
 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
Kernel Offset: disabled
Rebooting in 86400 seconds..