| TITLE: kernel panic: corrupted stack end in wb_workfn |
| |
| [ 200.999653] Kernel panic - not syncing: corrupted stack end detected inside scheduler |
| [ 201.007844] CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 4.20.0+ #252 |
| [ 201.014420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 201.023901] Workqueue: writeback wb_workfn (flush-8:0) |
| [ 201.029181] Call Trace: |
| [ 201.031778] dump_stack+0x1d3/0x2c6 |
| [ 201.040625] panic+0x2ad/0x55f |
| [ 201.076801] __schedule+0x1ec6/0x1ed0 |
| [ 201.120555] preempt_schedule_irq+0x87/0x110 |
| [ 201.124972] retint_kernel+0x1b/0x2d |
| [ 201.128689] RIP: 0010:__add_to_page_cache_locked+0x48c/0x1840 |
| [ 201.134577] Code: f8 83 e0 01 48 89 c6 48 89 85 80 fc ff ff e8 bb a7 e1 ff 48 8b 85 80 fc ff ff 4c 8b ad 88 fc ff ff 48 85 c0 0f 85 83 0e 00 00 <e8> 6f a6 e1 ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 |
| [ 201.153480] RSP: 0018:ffff8880a9e14668 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 |
| [ 201.161200] RAX: 0000000000000000 RBX: ffff8880a9e14a08 RCX: ffffffff819fff65 |
| [ 201.168506] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000007 |
| [ 201.175804] RBP: ffff8880a9e14a30 R08: ffff8880a9e061c0 R09: ffffed1015ce5b8f |
| [ 201.183079] R10: ffffea00052dfc80 R11: ffff8880ae72dc7b R12: ffff88821a1f6430 |
| [ 201.190351] R13: ffffea00052dfc80 R14: 0000000000000003 R15: dead000000000100 |
| [ 201.261080] add_to_page_cache_lru+0x355/0xdb0 |
| [ 201.264929] syz-executor642 invoked oom-killer: gfp_mask=0x6202c2(GFP_HIGHUSER|__GFP_NOWARN), nodemask=(null), order=0, oom_score_adj=1000 |
| [ 201.318813] syz-executor642 cpuset=syz4 mems_allowed=0-1 |
| [ 201.324288] pagecache_get_page+0x53a/0xf00 |
| [ 201.382778] ext4_mb_load_buddy_gfp+0xa80/0x1e70 |
| [ 201.495828] ext4_mb_regular_allocator+0x634/0x1590 |
| [ 201.520206] ext4_mb_new_blocks+0x1de3/0x4840 |
| [ 201.684191] ext4_ext_map_blocks+0x2eef/0x6180 |
| [ 201.747899] ext4_map_blocks+0x8f7/0x1b60 |
| [ 201.771231] ext4_writepages+0x2573/0x4180 |
| [ 201.850921] do_writepages+0x9a/0x1a0 |
| [ 201.863500] __writeback_single_inode+0x20a/0x1660 |
| [ 201.936685] writeback_sb_inodes+0x71f/0x1210 |
| [ 201.975790] __writeback_inodes_wb+0x1b9/0x340 |
| [ 201.989235] wb_writeback+0xa73/0xfc0 |
| [ 202.092390] wb_workfn+0xee9/0x1790 |
| [ 202.218262] process_one_work+0xc90/0x1c40 |
| [ 202.322376] worker_thread+0x17f/0x1390 |
| [ 202.396119] kthread+0x35a/0x440 |
| [ 202.403283] ret_from_fork+0x3a/0x50 |
| [ 202.408257] Kernel Offset: disabled |
| [ 202.412020] Rebooting in 86400 seconds.. |
