Kernel panic - not syncing: corrupted stack end detected inside scheduler
CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 4.20.0-rc7-next-20181224 #189
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/0x632 kernel/panic.c:214
 schedule_debug kernel/sched/core.c:3285 [inline]
 __schedule+0x1ecf/0x1ed0 kernel/sched/core.c:3394
 preempt_schedule_notrace+0x70/0x140 kernel/sched/core.c:3670
 ___preempt_schedule_notrace+0x16/0x31
 rcu_is_watching+0x23/0x30 kernel/rcu/tree.c:933
 rcu_read_lock include/linux/rcupdate.h:608 [inline]
 list_lru_count_one+0x3a8/0x450 mm/list_lru.c:193
 list_lru_shrink_count include/linux/list_lru.h:122 [inline]
 super_cache_count+0x153/0x2e0 fs/super.c:146
 do_shrink_slab+0x1b1/0xd30 mm/vmscan.c:469
 shrink_slab+0x389/0x8c0 mm/vmscan.c:710
 shrink_node+0x647/0x17f0 mm/vmscan.c:2776
 shrink_zones mm/vmscan.c:3006 [inline]
 do_try_to_free_pages+0x3df/0x12a0 mm/vmscan.c:3068
 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3284
 __perform_reclaim mm/page_alloc.c:4037 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:4059 [inline]
 __alloc_pages_slowpath+0xa5a/0x2d90 mm/page_alloc.c:4452
 __alloc_pages_nodemask+0xa89/0xde0 mm/page_alloc.c:4666
 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+0x396/0xf30 mm/filemap.c:1618
 find_or_create_page include/linux/pagemap.h:323 [inline]
 ext4_mb_load_buddy_gfp+0xddf/0x1e70 fs/ext4/mballoc.c:1158
oom_reaper: reaped process 8071 (syz-executor702), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
oom_reaper: reaped process 8077 (syz-executor702), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
 ext4_mb_load_buddy fs/ext4/mballoc.c:1241 [inline]
 ext4_mb_regular_allocator+0x634/0x1590 fs/ext4/mballoc.c:2190
oom_reaper: reaped process 8076 (syz-executor702), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
 ext4_mb_new_blocks+0x1de3/0x4840 fs/ext4/mballoc.c:4538
oom_reaper: reaped process 8081 (syz-executor702), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
oom_reaper: reaped process 8083 (syz-executor702), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
 ext4_ext_map_blocks+0x2eef/0x6180 fs/ext4/extents.c:4404
oom_reaper: reaped process 8079 (syz-executor702), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
 ext4_map_blocks+0x8ce/0x1b40 fs/ext4/inode.c:636
 mpage_map_one_extent fs/ext4/inode.c:2479 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2532 [inline]
 ext4_writepages+0x2598/0x4190 fs/ext4/inode.c:2883
rsyslogd invoked oom-killer: gfp_mask=0x6200ca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0
 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
CPU: 0 PID: 7946 Comm: rsyslogd Not tainted 4.20.0-rc7-next-20181224 #189
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+0x253/0x1239 mm/oom_kill.c:451
 oom_kill_process.cold.27+0x10/0x8f9 mm/oom_kill.c:966
 out_of_memory+0x8ba/0x1480 mm/oom_kill.c:1133
 __alloc_pages_may_oom mm/page_alloc.c:3783 [inline]
 __alloc_pages_slowpath+0x22f7/0x2d90 mm/page_alloc.c:4496
 __alloc_pages_nodemask+0xa89/0xde0 mm/page_alloc.c:4666
 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+0x396/0xf30 mm/filemap.c:1618
 filemap_fault+0x129c/0x2a70 mm/filemap.c:2562
 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6326
 __do_fault+0x176/0x6f0 mm/memory.c:3013
 do_read_fault mm/memory.c:3424 [inline]
 do_fault mm/memory.c:3550 [inline]
 handle_pte_fault mm/memory.c:3781 [inline]
 __handle_mm_fault+0x392f/0x55f0 mm/memory.c:3905
 handle_mm_fault+0x54f/0xc70 mm/memory.c:3942
 do_user_addr_fault arch/x86/mm/fault.c:1475 [inline]
 __do_page_fault+0x5f6/0xd70 arch/x86/mm/fault.c:1541
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1572
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143
RIP: 0033:0x7faacf5541fd
Code: Bad RIP value.
RSP: 002b:00007faaccaf3e30 EFLAGS: 00010293
RAX: 0000000000000ff8 RBX: 000000000233c170 RCX: 00007faacf5541fd
RDX: 0000000000000fff RSI: 00007faace3285a0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000002327260 R09: 0000000000000000
R10: 74616c7567657227 R11: 0000000000000293 R12: 000000000065e420
R13: 00007faaccaf49c0 R14: 00007faacfb99040 R15: 0000000000000003
Kernel Offset: disabled
Rebooting in 86400 seconds..