sysrq: Show Blocked State
  task                        PC stack   pid father
kworker/u12:1   D    0    45      2 0x80004000
Workqueue: writeback wb_workfn (flush-bcachefs-159)
Call Trace:
 __schedule+0x1af/0x410
 schedule+0x28/0x90
 __six_lock_type_slowpath+0x2dc/0x490
 ? __bch2_bkey_cmp_left_packed+0x3e/0x380
 ? bch2_bkey_pack_pos_lossy+0x1da/0x4c0
 six_lock_intent+0x32/0x50
 __bch2_btree_node_lock+0x9c/0x610
 bch2_btree_node_get+0x368/0x6d0
 btree_iter_traverse_one+0x37a/0xef0
 ? replicas_deltas_realloc.isra.3+0x36/0x60
 ? bch2_trans_mark_key+0x26d/0x340
 ? __bch2_bkey_cmp_left_packed+0x3e/0x380
 ? bch2_btree_node_iter_advance+0x10f/0x1c0
 __bch2_btree_iter_traverse+0x22/0x60
 bch2_btree_iter_peek_slot+0x5ee/0xb60
 ? bch2_trans_get_iter+0x5b/0x70
 bch2_inode_peek+0x7a/0xc0
 ? bch2_extent_debugcheck.cold.3+0x3c/0x3c
 bch2_write_inode+0x85/0x150
 ? find_get_pages_range_tag+0x68/0x260
 ? bch2_write_inode+0x3e/0x150
 ? bch2_writepages+0x8a/0x2e0
 ? bch2_writepages+0x2aa/0x2e0
 ? bch2_writepages+0x2c9/0x2e0
 ? virtscsi_kick_cmd+0x6a/0x90
 ? virtscsi_queuecommand+0x108/0x200
 ? do_writepages+0x29/0xb0
 ? do_writepages+0x29/0xb0
 bch2_vfs_write_inode+0x40/0x60
 __writeback_single_inode+0x1e4/0x330
 writeback_sb_inodes+0x1d3/0x440
 __writeback_inodes_wb+0x62/0xb0
 wb_writeback+0x230/0x2c0
 ? get_nr_dirty_inodes+0x3f/0x70
 wb_workfn+0x2c4/0x380
 process_one_work+0x1ee/0x400
 worker_thread+0x2f/0x3f0
 kthread+0x119/0x130
 ? process_one_work+0x400/0x400
 ? kthread_park+0x80/0x80
 ret_from_fork+0x1f/0x30
kworker/0:2H    D    0 31837      2 0x80004000
Workqueue: bcache_journal bch2_journal_reclaim_work
Call Trace:
 __schedule+0x1af/0x410
 schedule+0x28/0x90
 __six_lock_type_slowpath+0x2dc/0x490
 ? scsi_queue_rq+0x5d9/0x8a0
 ? blk_mq_dispatch_rq_list+0x412/0x500
 ? bch2_bset_build_aux_tree+0x336/0x360
 ? blk_mq_do_dispatch_ctx+0xd7/0x110
 six_lock_read+0x33/0x40
 __btree_node_flush+0x18a/0x1d0
 btree_node_flush0+0xe/0x10
 journal_flush_pins+0xb7/0x190
 bch2_journal_reclaim+0x105/0x290
 bch2_journal_reclaim_work+0x22/0x30
 process_one_work+0x1ee/0x400
 worker_thread+0x2f/0x3f0
 kthread+0x119/0x130
 ? process_one_work+0x400/0x400
 ? kthread_park+0x80/0x80
 ret_from_fork+0x1f/0x30
rm              D    0 31925  31584 0x00000000
Call Trace:
 __schedule+0x1af/0x410
 schedule+0x28/0x90
 __six_lock_type_slowpath+0x2dc/0x490
 ? replicas_deltas_realloc.isra.3+0x36/0x60
 ? bch2_btree_node_iter_advance+0x10f/0x1c0
 six_lock_write+0x39/0x40
 __bch2_btree_node_lock_write+0x8f/0x1b0
 btree_trans_lock_write+0x1b6/0x220
 bch2_trans_commit+0xba3/0x1600
 bch2_unlink+0x112/0x240
 ? bch2_unlink+0xbb/0x240
 ? generic_permission+0x110/0x190
 ? inode_permission+0x22/0xb0
 ? legitimize_path.isra.9+0x2d/0x60
 ? unlazy_walk+0x3a/0xb0
 ? dput+0x9/0x10
 ? terminate_walk+0x88/0xf0
 ? path_parentat.isra.13+0x35/0x70
 ? filename_parentat.isra.19.part.20+0xb9/0x110
 ? get_acl+0x16/0x110
 ? generic_permission+0x110/0x190
 ? inode_permission+0x22/0xb0
 bch2_rmdir+0x9/0x10
 vfs_rmdir+0x62/0x140
 do_rmdir+0x16e/0x1c0
 __se_sys_unlinkat+0x2f/0x40
 __x64_sys_unlinkat+0x15/0x20
 do_syscall_64+0x42/0x110
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fd74d2afff7
Code: Bad RIP value.
RSP: 002b:00007ffd4e0f7938 EFLAGS: 00000206 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 00005562b3f01bd0 RCX: 00007fd74d2afff7
RDX: 0000000000000200 RSI: 00005562b3f01cd8 RDI: 0000000000000009
RBP: 00005562b3ee12b0 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000006 R11: 0000000000000206 R12: 00007ffd4e0f7b20
R13: 0000000000000001 R14: 00005562b3f01bd0 R15: 0000000000000001
rm              D    0 31926  31584 0x00000000
Call Trace:
 __schedule+0x1af/0x410
 schedule+0x28/0x90
 __six_lock_type_slowpath+0x2dc/0x490
 ? replicas_deltas_realloc.isra.3+0x36/0x60
 ? bch2_btree_node_iter_advance+0x10f/0x1c0
 six_lock_write+0x39/0x40
 __bch2_btree_node_lock_write+0x8f/0x1b0
 btree_trans_lock_write+0x1b6/0x220
 bch2_trans_commit+0xba3/0x1600
 bch2_unlink+0x112/0x240
 ? bch2_unlink+0xbb/0x240
 ? inode_permission+0x22/0xb0
 ? legitimize_path.isra.9+0x2d/0x60
 ? unlazy_walk+0x3a/0xb0
 ? dput+0x9/0x10
 ? terminate_walk+0x88/0xf0
 ? path_parentat.isra.13+0x35/0x70
 ? filename_parentat.isra.19.part.20+0xb9/0x110
 ? __d_lookup+0x11f/0x130
 ? inode_permission+0x22/0xb0
 bch2_rmdir+0x9/0x10
 vfs_rmdir+0x62/0x140
 do_rmdir+0x16e/0x1c0
 __se_sys_unlinkat+0x2f/0x40
 __x64_sys_unlinkat+0x15/0x20
 do_syscall_64+0x42/0x110
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fb2d62f9ff7
Code: Bad RIP value.
RSP: 002b:00007ffc49701268 EFLAGS: 00000206 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 0000564bf6776fd0 RCX: 00007fb2d62f9ff7
RDX: 0000000000000200 RSI: 0000564bf67770d8 RDI: 0000000000000004
RBP: 0000564bf67612b0 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc49701450
R13: 0000000000000001 R14: 0000564bf6776fd0 R15: 0000000000000001