Warning: Permanently added '[localhost]:1569' (ECDSA) to the list of known hosts. syzkaller login: [ 92.525066][ T1172] check_preemption_disabled: 6 callbacks suppressed [ 92.525190][ T1172] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1172 [ 92.557904][ T1172] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 92.569465][ T1172] CPU: 3 PID: 1172 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 92.579297][ T1172] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 92.579297][ T1172] Call Trace: [ 92.579297][ T1172] dump_stack+0x18f/0x20d [ 92.579297][ T1172] check_preemption_disabled+0x20d/0x220 [ 92.579297][ T1172] ext4_mb_new_blocks+0xa4d/0x3b70 [ 92.579297][ T1172] ? ext4_find_extent+0x81a/0xad0 [ 92.579297][ T1172] ? ext4_ext_search_right+0x2ca/0xb20 [ 92.579297][ T1172] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 92.579297][ T1172] ext4_ext_map_blocks+0x201b/0x33e0 [ 92.579297][ T1172] ? ext4_ext_release+0x10/0x10 [ 92.579297][ T1172] ? down_write_killable+0x170/0x170 [ 92.579297][ T1172] ? ext4_es_lookup_extent+0x41d/0xd10 [ 92.579297][ T1172] ext4_map_blocks+0x4cb/0x1640 [ 92.579297][ T1172] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 92.579297][ T1172] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 92.579297][ T1172] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 92.579297][ T1172] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 92.579297][ T1172] ext4_writepages+0x1a7b/0x33c0 [ 92.579297][ T1172] ? __ext4_mark_inode_dirty+0x940/0x940 [ 92.579297][ T1172] ? __ext4_mark_inode_dirty+0x940/0x940 [ 92.579297][ T1172] ? do_writepages+0xfa/0x2a0 [ 92.579297][ T1172] do_writepages+0xfa/0x2a0 [ 92.579297][ T1172] ? page_writeback_cpu_online+0x10/0x10 [ 92.579297][ T1172] ? do_raw_spin_unlock+0x171/0x260 [ 92.579297][ T1172] ? _raw_spin_unlock+0x24/0x40 [ 92.579297][ T1172] __filemap_fdatawrite_range+0x2aa/0x390 [ 92.579297][ T1172] ? collapse_file+0x35a2/0x4330 [ 92.579297][ T1172] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 92.579297][ T1172] ? _raw_spin_unlock_irq+0x1f/0x80 [ 92.579297][ T1172] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 92.579297][ T1172] collapse_file+0x35ac/0x4330 [ 92.579297][ T1172] ? collapse_huge_page+0x4350/0x4350 [ 92.579297][ T1172] ? khugepaged+0x2506/0x3fc0 [ 92.579297][ T1172] ? xas_find+0x31a/0x880 [ 92.579297][ T1172] ? check_preemption_disabled+0x38/0x220 [ 92.579297][ T1172] khugepaged+0x3041/0x3fc0 [ 92.579297][ T1172] ? __kthread_parkme+0xae/0x1e0 [ 92.579297][ T1172] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 92.579297][ T1172] ? lock_downgrade+0x840/0x840 [ 92.579297][ T1172] ? finish_wait+0x260/0x260 [ 92.579297][ T1172] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 92.579297][ T1172] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 92.579297][ T1172] ? __kthread_parkme+0x13f/0x1e0 [ 92.579297][ T1172] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 92.579297][ T1172] kthread+0x3b5/0x4a0 [ 92.579297][ T1172] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 92.579297][ T1172] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 92.579297][ T1172] ret_from_fork+0x1f/0x30 [ 93.023176][ T1172] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1172 [ 93.042318][ T1172] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 93.050399][ T1172] CPU: 3 PID: 1172 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 93.061213][ T1172] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 93.071526][ T1172] Call Trace: [ 93.081838][ T1172] dump_stack+0x18f/0x20d [ 93.081838][ T1172] check_preemption_disabled+0x20d/0x220 [ 93.092159][ T1172] ext4_mb_new_blocks+0xa4d/0x3b70 [ 93.092159][ T1172] ? ext4_ext_search_right+0x2ca/0xb20 [ 93.102407][ T1172] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 93.112692][ T1172] ext4_ext_map_blocks+0x201b/0x33e0 [ 93.112692][ T1172] ? ext4_ext_release+0x10/0x10 [ 93.122892][ T1172] ? down_write_killable+0x170/0x170 [ 93.133060][ T1172] ? ext4_es_lookup_extent+0x41d/0xd10 [ 93.133060][ T1172] ext4_map_blocks+0x4cb/0x1640 [ 93.143541][ T1172] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 93.143541][ T1172] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 93.153689][ T1172] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 93.163927][ T1172] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 93.174098][ T1172] ext4_writepages+0x1a7b/0x33c0 [ 93.174098][ T1172] ? __ext4_mark_inode_dirty+0x940/0x940 [ 93.184528][ T1172] ? __ext4_mark_inode_dirty+0x940/0x940 [ 93.195051][ T1172] ? do_writepages+0xfa/0x2a0 [ 93.195051][ T1172] do_writepages+0xfa/0x2a0 [ 93.205287][ T1172] ? page_writeback_cpu_online+0x10/0x10 [ 93.205287][ T1172] ? do_raw_spin_unlock+0x171/0x260 [ 93.215659][ T1172] ? _raw_spin_unlock+0x24/0x40 [ 93.225910][ T1172] __filemap_fdatawrite_range+0x2aa/0x390 [ 93.225910][ T1172] ? collapse_file+0x35a2/0x4330 [ 93.236169][ T1172] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 93.246339][ T1172] ? _raw_spin_unlock_irq+0x1f/0x80 [ 93.256528][ T1172] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 93.256528][ T1172] collapse_file+0x35ac/0x4330 [ 93.266771][ T1172] ? collapse_huge_page+0x4350/0x4350 [ 93.276979][ T1172] ? khugepaged+0x2506/0x3fc0 [ 93.276979][ T1172] ? xas_find+0x31a/0x880 [ 93.287188][ T1172] ? check_preemption_disabled+0x38/0x220 [ 93.287188][ T1172] khugepaged+0x3041/0x3fc0 [ 93.297384][ T1172] ? __kthread_parkme+0xae/0x1e0 [ 93.297384][ T1172] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 93.307635][ T1172] ? lock_downgrade+0x840/0x840 [ 93.307635][ T1172] ? finish_wait+0x260/0x260 [ 93.317871][ T1172] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 93.338547][ T1172] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 93.348814][ T1172] ? __kthread_parkme+0x13f/0x1e0 [ 93.348814][ T1172] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 93.359036][ T1172] kthread+0x3b5/0x4a0 [ 93.359036][ T1172] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 93.359036][ T1172] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 93.359036][ T1172] ret_from_fork+0x1f/0x30 [ 93.444031][ T1172] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1172 [ 93.454473][ T1172] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 93.461395][ T1172] CPU: 3 PID: 1172 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 93.470279][ T1172] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 93.471298][ T1172] Call Trace: [ 93.471298][ T1172] dump_stack+0x18f/0x20d [ 93.471298][ T1172] check_preemption_disabled+0x20d/0x220 [ 93.471298][ T1172] ext4_mb_new_blocks+0xa4d/0x3b70 [ 93.471298][ T1172] ? ext4_ext_search_right+0x2ca/0xb20 [ 93.471298][ T1172] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 93.471298][ T1172] ext4_ext_map_blocks+0x201b/0x33e0 [ 93.471298][ T1172] ? ext4_ext_release+0x10/0x10 [ 93.471298][ T1172] ? down_write_killable+0x170/0x170 [ 93.471298][ T1172] ? ext4_es_lookup_extent+0x41d/0xd10 [ 93.471298][ T1172] ext4_map_blocks+0x4cb/0x1640 [ 93.471298][ T1172] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 93.471298][ T1172] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 93.471298][ T1172] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 93.471298][ T1172] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 93.471298][ T1172] ext4_writepages+0x1a7b/0x33c0 [ 93.471298][ T1172] ? __ext4_mark_inode_dirty+0x940/0x940 [ 93.471298][ T1172] ? __ext4_mark_inode_dirty+0x940/0x940 [ 93.471298][ T1172] ? do_writepages+0xfa/0x2a0 [ 93.471298][ T1172] do_writepages+0xfa/0x2a0 [ 93.471298][ T1172] ? page_writeback_cpu_online+0x10/0x10 [ 93.471298][ T1172] ? do_raw_spin_unlock+0x171/0x260 [ 93.471298][ T1172] ? _raw_spin_unlock+0x24/0x40 [ 93.471298][ T1172] __filemap_fdatawrite_range+0x2aa/0x390 [ 93.471298][ T1172] ? collapse_file+0x35a2/0x4330 [ 93.471298][ T1172] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 93.471298][ T1172] ? _raw_spin_unlock_irq+0x1f/0x80 [ 93.471298][ T1172] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 93.471298][ T1172] collapse_file+0x35ac/0x4330 [ 93.471298][ T1172] ? collapse_huge_page+0x4350/0x4350 [ 93.471298][ T1172] ? khugepaged+0x2506/0x3fc0 [ 93.471298][ T1172] ? xas_find+0x31a/0x880 [ 93.471298][ T1172] ? check_preemption_disabled+0x38/0x220 [ 93.471298][ T1172] khugepaged+0x3041/0x3fc0 [ 93.471298][ T1172] ? __kthread_parkme+0xae/0x1e0 [ 93.471298][ T1172] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 93.471298][ T1172] ? lock_downgrade+0x840/0x840 [ 93.471298][ T1172] ? finish_wait+0x260/0x260 [ 93.471298][ T1172] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 93.471298][ T1172] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 93.471298][ T1172] ? __kthread_parkme+0x13f/0x1e0 [ 93.471298][ T1172] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 93.471298][ T1172] kthread+0x3b5/0x4a0 [ 93.471298][ T1172] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 93.471298][ T1172] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 93.471298][ T1172] ret_from_fork+0x1f/0x30