| TITLE: kernel panic: corrupted stack end in wb_workfn |
| |
| [ 335.974403] Kernel panic - not syncing: corrupted stack end detected inside scheduler |
| [ 335.975933] CPU: 0 PID: 11678 Comm: kworker/u12:6 Not tainted 4.20.0+ #11 |
| [ 335.977172] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 |
| [ 335.978779] Workqueue: writeback wb_workfn (flush-8:0) |
| [ 335.979784] Call Trace: |
| [ 335.980287] dump_stack+0x1d3/0x2c6 |
| [ 335.982672] panic+0x2ad/0x55f |
| [ 335.986347] __schedule+0x1ec6/0x1ed0 |
| [ 335.993751] preempt_schedule_irq+0x87/0x110 |
| [ 335.994383] retint_kernel+0x1b/0x2d |
| [ 335.994939] RIP: 0010:__sanitizer_cov_trace_pc+0x26/0x50 |
| [ 335.995730] Code: 5d c3 66 90 55 48 89 e5 48 8b 75 08 65 48 8b 04 25 40 ee 01 00 65 8b 15 d8 05 80 7e 81 e2 00 01 1f 00 75 2b 8b 90 d8 12 00 00 <83> fa 02 75 20 48 8b 88 e0 12 00 00 8b 80 dc 12 00 00 48 8b 11 48 |
| [ 335.998549] RSP: 0018:ffff888044289348 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff02 |
| [ 335.999800] RAX: ffff88804400c3c0 RBX: 1ffff1100885126e RCX: 0000000000000000 |
| [ 336.000873] RDX: 0000000000000000 RSI: ffffffff81bb5329 RDI: 0000000000000007 |
| [ 336.001964] RBP: ffff888044289348 R08: ffff88804400c3c0 R09: fffff940002b91fe |
| [ 336.003010] R10: fffff940002b91fe R11: ffffea00015c8ff3 R12: ffffea00015c8fc0 |
| [ 336.004112] R13: ffff888044289410 R14: ffffea00015c8fc8 R15: ffffea00015c8fc0 |
| [ 336.006590] rmap_walk+0x119/0x350 |
| [ 336.009046] try_to_unmap+0x1f3/0xa40 |
| [ 336.020876] shrink_page_list+0x70ef/0xc2e0 |
| [ 336.138056] shrink_inactive_list+0x77b/0x1c60 |
| [ 336.143095] shrink_node_memcg+0x7a8/0x19a0 |
| [ 336.153262] syz-executor2 (20558) used greatest stack depth: 4808 bytes left |
| [ 336.153592] shrink_node+0x3e1/0x17f0 |
| [ 336.164797] do_try_to_free_pages+0x3df/0x12a0 |
| [ 336.168005] try_to_free_pages+0x4d0/0xb90 |
| [ 336.174332] __alloc_pages_slowpath+0xa5a/0x2db0 |
| [ 336.188121] __alloc_pages_nodemask+0xa89/0xde0 |
| [ 336.195476] alloc_pages_current+0x10c/0x210 |
| [ 336.196116] __page_cache_alloc+0x38c/0x5b0 |
| [ 336.199371] pagecache_get_page+0x396/0xf00 |
| [ 336.207507] ext4_mb_load_buddy_gfp+0xddf/0x1e70 |
| [ 336.227432] ext4_mb_find_by_goal+0x2fa/0x1040 |
| [ 336.234525] ext4_mb_regular_allocator+0x282/0x1590 |
| [ 336.241382] ext4_mb_new_blocks+0x1de3/0x4840 |
| [ 336.276757] ext4_ext_map_blocks+0x2eef/0x6180 |
| [ 336.291766] ext4_map_blocks+0x8f7/0x1b60 |
| [ 336.297211] ext4_writepages+0x2564/0x4170 |
| [ 336.308530] blkid (20588) used greatest stack depth: 3352 bytes left |
| [ 336.314367] do_writepages+0x9a/0x1a0 |
| [ 336.317308] __writeback_single_inode+0x20a/0x1660 |
| [ 336.338247] writeback_sb_inodes+0x71f/0x1210 |
| [ 336.344617] __writeback_inodes_wb+0x1b9/0x340 |
| [ 336.346588] wb_writeback+0xa73/0xfc0 |
| [ 336.356813] wb_workfn+0xd65/0x1790 |
| [ 336.370426] process_one_work+0xc90/0x1c40 |
| [ 336.387991] worker_thread+0x17f/0x1390 |
| [ 336.400947] kthread+0x35a/0x440 |
| [ 336.402013] ret_from_fork+0x3a/0x50 |
| [ 336.403121] Dumping ftrace buffer: |
| [ 336.403852] (ftrace buffer empty) |
| [ 336.404373] Kernel Offset: disabled |
| [ 336.404873] Rebooting in 86400 seconds.. |
| |
