audit: type=1800 audit(1545688720.064:29): pid=7683 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0
Kernel panic - not syncing: corrupted stack end detected inside scheduler
CPU: 1 PID: 2456 Comm: kworker/u4:3 Not tainted 4.20.0-rc7+ #247
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:dqcache_shrink_count+0x1/0xc0 fs/quota/dquot.c:733
Code: c7 c0 27 41 89 49 81 8c c4 18 02 00 00 00 00 02 00 e8 83 98 ec 05 5b 41 5c 5d c3 e8 a9 5c d2 ff eb d8 0f 1f 80 00 00 00 00 55 <48> 89 e5 53 48 83 ec 08 e8 62 54 8f ff 48 8b 0d 63 a7 27 09 b8 00
RSP: 0018:ffff8881d0c14288 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffffff81ef0430 RBX: 0000000000000000 RCX: ffffffff81a5633f
RDX: 1ffffffff12cdc90 RSI: ffff8881d0c14550 RDI: ffffffff8966e480
RBP: ffff8881d0c14488 R08: ffff8881d0c08580 R09: ffffed103b5e5b77
R10: 0000000000000007 R11: ffff8881daf2dbbb R12: ffff8881d0c14550
R13: ffffffff8966e480 R14: fffffffffffffffe R15: ffffffff8966e480
 shrink_slab+0x389/0x8c0 mm/vmscan.c:706
 shrink_node+0x431/0x16b0 mm/vmscan.c:2758
 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]
 depot_save_stack+0x3f1/0x470 lib/stackdepot.c:260
 save_stack+0xa9/0xd0 mm/kasan/kasan.c:454
 set_track mm/kasan/kasan.c:460 [inline]
 kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490
 kmem_cache_alloc+0x12e/0x730 mm/slab.c:3554
 kmem_cache_zalloc include/linux/slab.h:731 [inline]
 ext4_mb_new_blocks+0x787/0x4840 fs/ext4/mballoc.c:4519
 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..