[ 52.187624][ T6733] ext4_mb_new_blocks+0xa4d/0x3b70 [ 52.192737][ T6733] ? ext4_ext_search_right+0x2ca/0xb20 [ 52.198200][ T6733] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 52.203921][ T6733] ext4_ext_map_blocks+0x201b/0x33e0 [ 52.209186][ T6733] ? ext4_ext_release+0x10/0x10 [ 52.214025][ T6733] ? down_write_killable+0x170/0x170 [ 52.219303][ T6733] ? ext4_es_lookup_extent+0x41d/0xd10 [ 52.224748][ T6733] ext4_map_blocks+0x4cb/0x1640 [ 52.229586][ T6733] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 52.234813][ T6733] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 52.240344][ T6733] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 52.246311][ T6733] ? prandom_u32_state+0xe/0x170 [ 52.251224][ T6733] ? __brelse+0x84/0xa0 [ 52.255352][ T6733] ? __ext4_new_inode+0x144/0x55e0 [ 52.260476][ T6733] ext4_getblk+0xad/0x520 [ 52.264780][ T6733] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 52.270514][ T6733] ? ext4_free_inode+0x1700/0x1700 [ 52.275604][ T6733] ext4_bread+0x7c/0x380 [ 52.279881][ T6733] ? ext4_getblk+0x520/0x520 [ 52.284447][ T6733] ? dquot_get_next_dqblk+0x180/0x180 [ 52.289797][ T6733] ext4_append+0x153/0x360 [ 52.294192][ T6733] ext4_mkdir+0x5e0/0xdf0 [ 52.298500][ T6733] ? ext4_rmdir+0xde0/0xde0 [ 52.303102][ T6733] ? security_inode_permission+0xc4/0xf0 [ 52.308722][ T6733] vfs_mkdir+0x419/0x690 [ 52.312942][ T6733] do_mkdirat+0x21e/0x280 [ 52.317246][ T6733] ? __ia32_sys_mknod+0xb0/0xb0 [ 52.322073][ T6733] ? do_syscall_64+0x1c/0xe0 [ 52.326638][ T6733] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 52.332608][ T6733] do_syscall_64+0x60/0xe0 [ 52.336999][ T6733] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.342865][ T6733] RIP: 0033:0x7f75491cf687 [ 52.347247][ T6733] Code: Bad RIP value. [ 52.351285][ T6733] RSP: 002b:00007ffd33714218 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 52.359677][ T6733] RAX: ffffffffffffffda RBX: 000055be2575c985 RCX: 00007f75491cf687 [ 52.367623][ T6733] RDX: 00007ffd337140e0 RSI: 00000000000001ed RDI: 000055be2575c985 [ 52.375571][ T6733] RBP: 00007f75491cf680 R08: 0000000000000100 R09: 0000000000000000 [ 52.383529][ T6733] R10: 000055be2575c980 R11: 0000000000000246 R12: 00000000000001ed [ 52.391485][ T6733] R13: 00007ffd337143a0 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 56.139303][ T325] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:6/325 [ 56.148465][ T325] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.154443][ T325] CPU: 0 PID: 325 Comm: kworker/u4:6 Not tainted 5.7.0-next-20200609-syzkaller #0 [ 56.163630][ T325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.173669][ T325] Workqueue: writeback wb_workfn (flush-8:0) [ 56.179620][ T325] Call Trace: [ 56.182885][ T325] dump_stack+0x18f/0x20d [ 56.187193][ T325] check_preemption_disabled+0x20d/0x220 [ 56.192803][ T325] ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.197888][ T325] ? ext4_find_extent+0x81a/0xad0 [ 56.202888][ T325] ? ext4_ext_search_right+0x2ca/0xb20 [ 56.208318][ T325] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 56.214013][ T325] ext4_ext_map_blocks+0x201b/0x33e0 [ 56.219280][ T325] ? ext4_ext_release+0x10/0x10 [ 56.224122][ T325] ? down_write_killable+0x170/0x170 [ 56.229384][ T325] ? ext4_es_lookup_extent+0x41d/0xd10 [ 56.234816][ T325] ext4_map_blocks+0x4cb/0x1640 [ 56.239645][ T325] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 56.244822][ T325] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.250343][ T325] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.256301][ T325] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 56.261746][ T325] ext4_writepages+0x1a83/0x33c0 [ 56.266668][ T325] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.272277][ T325] ? __lock_acquire+0x2224/0x48b0 [ 56.277299][ T325] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.283255][ T325] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.289214][ T325] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.294830][ T325] ? do_writepages+0xf3/0x2a0 [ 56.299660][ T325] do_writepages+0xf3/0x2a0 [ 56.304142][ T325] ? page_writeback_cpu_online+0x10/0x10 [ 56.309753][ T325] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.315300][ T325] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.321252][ T325] ? lock_downgrade+0x840/0x840 [ 56.326080][ T325] __writeback_single_inode+0x12a/0x13d0 [ 56.331689][ T325] ? _raw_spin_unlock+0x24/0x40 [ 56.336598][ T325] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 56.342551][ T325] writeback_sb_inodes+0x515/0xdc0 [ 56.347657][ T325] ? __writeback_single_inode+0x13d0/0x13d0 [ 56.353657][ T325] __writeback_inodes_wb+0xc3/0x250 [ 56.358835][ T325] wb_writeback+0x8c8/0xd40 [ 56.363314][ T325] ? writeback_inodes_wb.constprop.0+0x190/0x190 [ 56.369619][ T325] ? cpumask_next+0x3c/0x40 [ 56.374095][ T325] ? get_nr_dirty_inodes+0xd6/0x130 [ 56.379281][ T325] wb_workfn+0xab3/0x1090 [ 56.383597][ T325] ? inode_wait_for_writeback+0x30/0x30 [ 56.389125][ T325] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.394664][ T325] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.400641][ T325] process_one_work+0x965/0x1690 [ 56.405561][ T325] ? lock_release+0x800/0x800 [ 56.410228][ T325] ? pwq_dec_nr_in_flight+0x310/0x310 [ 56.415576][ T325] ? rwlock_bug.part.0+0x90/0x90 [ 56.420493][ T325] worker_thread+0x96/0xe10 [ 56.424978][ T325] ? process_one_work+0x1690/0x1690 [ 56.430156][ T325] kthread+0x3b5/0x4a0 [ 56.434201][ T325] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.439891][ T325] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.445597][ T325] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.10.28' (ECDSA) to the list of known hosts. 2020/06/09 14:21:06 fuzzer started 2020/06/09 14:21:06 connecting to host at 10.128.0.26:42473 2020/06/09 14:21:06 checking machine... 2020/06/09 14:21:06 checking revisions... 2020/06/09 14:21:06 testing simple program... [ 57.973317][ T6804] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6804 [ 57.982390][ T6804] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.988358][ T6804] CPU: 0 PID: 6804 Comm: syz-fuzzer Not tainted 5.7.0-next-20200609-syzkaller #0 [ 57.997446][ T6804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.007476][ T6804] Call Trace: [ 58.010798][ T6804] dump_stack+0x18f/0x20d [ 58.015106][ T6804] check_preemption_disabled+0x20d/0x220 [ 58.020730][ T6804] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.025818][ T6804] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.031249][ T6804] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.036944][ T6804] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.042248][ T6804] ? ext4_ext_release+0x10/0x10 [ 58.047085][ T6804] ? down_write_killable+0x170/0x170 [ 58.052380][ T6804] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.057814][ T6804] ext4_map_blocks+0x4cb/0x1640 [ 58.062645][ T6804] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.067818][ T6804] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.073376][ T6804] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.079373][ T6804] ? prandom_u32_state+0xe/0x170 [ 58.084285][ T6804] ? __brelse+0x84/0xa0 [ 58.088417][ T6804] ? __ext4_new_inode+0x144/0x55e0 [ 58.093536][ T6804] ext4_getblk+0xad/0x520 [ 58.097838][ T6804] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.103535][ T6804] ? ext4_free_inode+0x1700/0x1700 [ 58.108622][ T6804] ext4_bread+0x7c/0x380 [ 58.112840][ T6804] ? ext4_getblk+0x520/0x520 [ 58.117401][ T6804] ? dquot_get_next_dqblk+0x180/0x180 [ 58.122749][ T6804] ext4_append+0x153/0x360 [ 58.127142][ T6804] ext4_mkdir+0x5e0/0xdf0 [ 58.131449][ T6804] ? ext4_rmdir+0xde0/0xde0 [ 58.135946][ T6804] ? security_inode_permission+0xc4/0xf0 [ 58.141557][ T6804] vfs_mkdir+0x419/0x690 [ 58.145775][ T6804] do_mkdirat+0x21e/0x280 [ 58.150080][ T6804] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.154905][ T6804] ? do_syscall_64+0x1c/0xe0 [ 58.159474][ T6804] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.165429][ T6804] do_syscall_64+0x60/0xe0 [ 58.169820][ T6804] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.175691][ T6804] RIP: 0033:0x4b02a0 [ 58.179573][ T6804] Code: Bad RIP value. [ 58.183616][ T6804] RSP: 002b:000000c0000dd4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 58.192008][ T6804] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 58.200091][ T6804] RDX: 00000000000001c0 RSI: 000000c000026b80 RDI: ffffffffffffff9c [ 58.208049][ T6804] RBP: 000000c0000dd510 R08: 0000000000000000 R09: 0000000000000000 [ 58.216868][ T6804] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 58.224812][ T6804] R13: 000000000000005d R14: 000000000000005c R15: 0000000000000100 [ 58.241264][ T6820] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6820 [ 58.250690][ T6820] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.256560][ T6820] CPU: 0 PID: 6820 Comm: syz-executor.0 Not tainted 5.7.0-next-20200609-syzkaller #0 [ 58.265981][ T6820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.276011][ T6820] Call Trace: [ 58.279280][ T6820] dump_stack+0x18f/0x20d [ 58.283606][ T6820] check_preemption_disabled+0x20d/0x220 [ 58.289238][ T6820] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.294333][ T6820] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.299766][ T6820] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.305463][ T6820] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.310728][ T6820] ? ext4_ext_release+0x10/0x10 [ 58.315562][ T6820] ? down_write_killable+0x170/0x170 [ 58.320820][ T6820] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.326296][ T6820] ext4_map_blocks+0x4cb/0x1640 [ 58.331128][ T6820] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.336312][ T6820] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.341845][ T6820] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.347797][ T6820] ? prandom_u32_state+0xe/0x170 [ 58.352709][ T6820] ? __brelse+0x84/0xa0 [ 58.356841][ T6820] ? __ext4_new_inode+0x144/0x55e0 [ 58.361927][ T6820] ext4_getblk+0xad/0x520 [ 58.366230][ T6820] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.371927][ T6820] ? ext4_free_inode+0x1700/0x1700 [ 58.377034][ T6820] ext4_bread+0x7c/0x380 [ 58.381256][ T6820] ? ext4_getblk+0x520/0x520 [ 58.385873][ T6820] ? dquot_get_next_dqblk+0x180/0x180 [ 58.391225][ T6820] ext4_append+0x153/0x360 [ 58.395617][ T6820] ext4_mkdir+0x5e0/0xdf0 [ 58.399925][ T6820] ? ext4_rmdir+0xde0/0xde0 [ 58.404454][ T6820] ? security_inode_permission+0xc4/0xf0 [ 58.410063][ T6820] vfs_mkdir+0x419/0x690 [ 58.414406][ T6820] do_mkdirat+0x21e/0x280 [ 58.418796][ T6820] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.423636][ T6820] ? do_syscall_64+0x1c/0xe0 [ 58.428245][ T6820] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.434214][ T6820] do_syscall_64+0x60/0xe0 [ 58.438609][ T6820] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.444477][ T6820] RIP: 0033:0x45bee7 [ 58.448342][ T6820] Code: Bad RIP value. [ 58.452425][ T6820] RSP: 002b:00007ffc68e2b2d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 58.460819][ T6820] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 58.468780][ T6820] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffc68e2b4b0 [ 58.476726][ T6820] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002640 [ 58.484684][ T6820] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 58.492631][ T6820] R13: 00007ffc68e2b4b0 R14: 8421084210842109 R15: 00007ffc68e2b4bc [ 58.573402][ T6821] IPVS: ftp: loaded support on port[0] = 21 [ 58.609494][ T6821] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6821 [ 58.618915][ T6821] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.624820][ T6821] CPU: 1 PID: 6821 Comm: syz-executor.0 Not tainted 5.7.0-next-20200609-syzkaller #0 [ 58.634242][ T6821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.644271][ T6821] Call Trace: [ 58.647568][ T6821] dump_stack+0x18f/0x20d [ 58.651883][ T6821] check_preemption_disabled+0x20d/0x220 [ 58.657494][ T6821] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.662611][ T6821] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.668060][ T6821] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.673754][ T6821] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.679031][ T6821] ? ext4_ext_release+0x10/0x10 [ 58.683867][ T6821] ? down_write_killable+0x170/0x170 [ 58.689133][ T6821] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.694569][ T6821] ext4_map_blocks+0x4cb/0x1640 [ 58.699399][ T6821] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.704575][ T6821] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.710104][ T6821] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.716069][ T6821] ? prandom_u32_state+0xe/0x170 [ 58.720982][ T6821] ? __brelse+0x84/0xa0 [ 58.725112][ T6821] ? __ext4_new_inode+0x144/0x55e0 [ 58.730199][ T6821] ext4_getblk+0xad/0x520 [ 58.734519][ T6821] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.740229][ T6821] ? ext4_free_inode+0x1700/0x1700 [ 58.745314][ T6821] ext4_bread+0x7c/0x380 [ 58.749531][ T6821] ? ext4_getblk+0x520/0x520 [ 58.754095][ T6821] ? dquot_get_next_dqblk+0x180/0x180 [ 58.759549][ T6821] ext4_append+0x153/0x360 [ 58.763956][ T6821] ext4_mkdir+0x5e0/0xdf0 [ 58.768265][ T6821] ? ext4_rmdir+0xde0/0xde0 [ 58.772745][ T6821] ? security_inode_permission+0xc4/0xf0 [ 58.778355][ T6821] vfs_mkdir+0x419/0x690 [ 58.782578][ T6821] do_mkdirat+0x21e/0x280 [ 58.786885][ T6821] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.791712][ T6821] ? do_syscall_64+0x1c/0xe0 [ 58.796274][ T6821] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.802228][ T6821] do_syscall_64+0x60/0xe0 [ 58.806618][ T6821] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.812486][ T6821] RIP: 0033:0x45bee7 [ 58.816350][ T6821] Code: Bad RIP value. [ 58.820388][ T6821] RSP: 002b:00007ffc68e2b1c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 58.828771][ T6821] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 58.836717][ T6821] RDX: 00007ffc68e2b213 RSI: 00000000000001ff RDI: 00007ffc68e2b210 [ 58.844660][ T6821] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 58.852605][ T6821] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 58.860564][ T6821] R13: 00007ffc68e2b200 R14: 0000000000000000 R15: 00007ffc68e2b210 [ 58.909127][ T6821] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6821 [ 58.918916][ T6821] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.924812][ T6821] CPU: 0 PID: 6821 Comm: syz-executor.0 Not tainted 5.7.0-next-20200609-syzkaller #0 [ 58.934253][ T6821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.944300][ T6821] Call Trace: [ 58.947588][ T6821] dump_stack+0x18f/0x20d [ 58.951924][ T6821] check_preemption_disabled+0x20d/0x220 [ 58.957555][ T6821] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.962673][ T6821] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.968133][ T6821] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.973844][ T6821] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.979127][ T6821] ? ext4_ext_release+0x10/0x10 [ 58.983992][ T6821] ? down_write_killable+0x170/0x170 [ 58.989265][ T6821] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.994704][ T6821] ext4_map_blocks+0x4cb/0x1640 [ 58.999537][ T6821] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.004707][ T6821] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.010226][ T6821] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.016223][ T6821] ? prandom_u32_state+0xe/0x170 [ 59.021177][ T6821] ? __brelse+0x84/0xa0 [ 59.025342][ T6821] ? __ext4_new_inode+0x144/0x55e0 [ 59.030461][ T6821] ext4_getblk+0xad/0x520 [ 59.034762][ T6821] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.040458][ T6821] ? ext4_free_inode+0x1700/0x1700 [ 59.045574][ T6821] ext4_bread+0x7c/0x380 [ 59.049878][ T6821] ? ext4_getblk+0x520/0x520 [ 59.054487][ T6821] ? dquot_get_next_dqblk+0x180/0x180 [ 59.059850][ T6821] ext4_append+0x153/0x360 [ 59.064253][ T6821] ext4_mkdir+0x5e0/0xdf0 [ 59.068561][ T6821] ? ext4_rmdir+0xde0/0xde0 [ 59.073065][ T6821] ? security_inode_permission+0xc4/0xf0 [ 59.078676][ T6821] vfs_mkdir+0x419/0x690 [ 59.082896][ T6821] do_mkdirat+0x21e/0x280 [ 59.087200][ T6821] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.092054][ T6821] ? do_syscall_64+0x1c/0xe0 [ 59.096628][ T6821] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.102593][ T6821] do_syscall_64+0x60/0xe0 [ 59.106985][ T6821] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.112854][ T6821] RIP: 0033:0x45bee7 [ 59.116725][ T6821] Code: Bad RIP value. [ 59.120775][ T6821] RSP: 002b:00007ffc68e2b1c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 59.129157][ T6821] RAX: ffffffffffffffda RBX: 000000000000e616 RCX: 000000000045bee7 [ 59.137099][ T6821] RDX: 00007ffc68e2b213 RSI: 00000000000001ff RDI: 00007ffc68e2b210 [ 59.145057][ T6821] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 2020/06/09 14:21:07 building call list... [ 59.153000][ T6821] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 59.160943][ T6821] R13: 00007ffc68e2b200 R14: 000000000000e60e R15: 00007ffc68e2b210 [ 59.417671][ T434] tipc: TX() has been purged, node left! executing program [ 60.923814][ T6819] can: request_module (can-proto-0) failed. [ 61.422947][ T1157] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1157 [ 61.432295][ T1157] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.438286][ T1157] CPU: 0 PID: 1157 Comm: khugepaged Not tainted 5.7.0-next-20200609-syzkaller #0 [ 61.447376][ T1157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.457415][ T1157] Call Trace: [ 61.460702][ T1157] dump_stack+0x18f/0x20d [ 61.465031][ T1157] check_preemption_disabled+0x20d/0x220 [ 61.470656][ T1157] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.475761][ T1157] ? ext4_find_extent+0x81a/0xad0 [ 61.480790][ T1157] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.486255][ T1157] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.489987][ T6819] can: request_module (can-proto-0) failed. [ 61.491974][ T1157] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.503117][ T1157] ? ext4_ext_release+0x10/0x10 [ 61.505657][ T6819] can: request_module (can-proto-0) failed. [ 61.508008][ T1157] ? down_write_killable+0x170/0x170 [ 61.508023][ T1157] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.508046][ T1157] ext4_map_blocks+0x4cb/0x1640 [ 61.508073][ T1157] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.534612][ T1157] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.540146][ T1157] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.546129][ T1157] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.551907][ T1157] ext4_writepages+0x1a83/0x33c0 [ 61.556861][ T1157] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.562492][ T1157] ? __lock_acquire+0x2224/0x48b0 [ 61.567543][ T1157] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.573175][ T1157] ? do_writepages+0xf3/0x2a0 [ 61.577850][ T1157] do_writepages+0xf3/0x2a0 [ 61.582356][ T1157] ? page_writeback_cpu_online+0x10/0x10 [ 61.587998][ T1157] ? do_raw_spin_lock+0x120/0x2d0 [ 61.593021][ T1157] ? do_raw_spin_unlock+0x171/0x260 [ 61.598217][ T1157] ? _raw_spin_unlock+0x24/0x40 [ 61.603201][ T1157] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.608920][ T1157] ? collapse_file+0x35a2/0x4330 [ 61.613857][ T1157] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 61.619933][ T1157] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.625139][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.631130][ T1157] collapse_file+0x35ac/0x4330 [ 61.635912][ T1157] ? collapse_huge_page+0x4350/0x4350 [ 61.641281][ T1157] ? khugepaged+0x2506/0x3fc0 [ 61.645969][ T1157] ? xas_find+0x31a/0x880 [ 61.650299][ T1157] ? check_preemption_disabled+0x38/0x220 [ 61.656115][ T1157] khugepaged+0x3041/0x3fc0 [ 61.660644][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.666461][ T1157] ? lock_downgrade+0x840/0x840 [ 61.671309][ T1157] ? finish_wait+0x260/0x260 [ 61.675904][ T1157] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.681710][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.687692][ T1157] ? __kthread_parkme+0x13f/0x1e0 [ 61.692716][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.698349][ T1157] kthread+0x3b5/0x4a0 [ 61.702413][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.708131][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.713958][ T1157] ret_from_fork+0x1f/0x30 [ 61.787808][ T1157] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1157 [ 61.796944][ T1157] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.802881][ T1157] CPU: 1 PID: 1157 Comm: khugepaged Not tainted 5.7.0-next-20200609-syzkaller #0 [ 61.811979][ T1157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.822025][ T1157] Call Trace: [ 61.822046][ T1157] dump_stack+0x18f/0x20d [ 61.822067][ T1157] check_preemption_disabled+0x20d/0x220 [ 61.822087][ T1157] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.840416][ T1157] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.845851][ T1157] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.851980][ T1157] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.857243][ T1157] ? ext4_ext_release+0x10/0x10 [ 61.862127][ T1157] ? down_write_killable+0x170/0x170 [ 61.867424][ T1157] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.872860][ T1157] ext4_map_blocks+0x4cb/0x1640 [ 61.877693][ T1157] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.882867][ T1157] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.888387][ T1157] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.894341][ T1157] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.899774][ T1157] ext4_writepages+0x1a83/0x33c0 [ 61.904693][ T1157] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.910298][ T1157] ? __lock_acquire+0x2224/0x48b0 [ 61.915308][ T1157] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.920915][ T1157] ? do_writepages+0xf3/0x2a0 [ 61.925697][ T1157] do_writepages+0xf3/0x2a0 [ 61.930178][ T1157] ? page_writeback_cpu_online+0x10/0x10 [ 61.935783][ T1157] ? do_raw_spin_lock+0x120/0x2d0 [ 61.940780][ T1157] ? do_raw_spin_unlock+0x171/0x260 [ 61.945950][ T1157] ? _raw_spin_unlock+0x24/0x40 [ 61.950778][ T1157] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.956469][ T1157] ? collapse_file+0x35a2/0x4330 [ 61.961378][ T1157] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 61.967461][ T1157] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.972656][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.978636][ T1157] collapse_file+0x35ac/0x4330 [ 61.983383][ T1157] ? collapse_huge_page+0x4350/0x4350 [ 61.988731][ T1157] ? khugepaged+0x2506/0x3fc0 [ 61.993386][ T1157] ? xas_find+0x31a/0x880 [ 61.997692][ T1157] ? check_preemption_disabled+0x38/0x220 [ 62.003387][ T1157] khugepaged+0x3041/0x3fc0 [ 62.007875][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.013480][ T1157] ? lock_downgrade+0x840/0x840 [ 62.018307][ T1157] ? finish_wait+0x260/0x260 [ 62.022886][ T1157] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.028666][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.034635][ T1157] ? __kthread_parkme+0x13f/0x1e0 [ 62.039634][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.045253][ T1157] kthread+0x3b5/0x4a0 [ 62.049294][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.054984][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.060679][ T1157] ret_from_fork+0x1f/0x30 [ 62.105777][ T1157] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1157 [ 62.115023][ T1157] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.120995][ T1157] CPU: 0 PID: 1157 Comm: khugepaged Not tainted 5.7.0-next-20200609-syzkaller #0 [ 62.130093][ T1157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.140174][ T1157] Call Trace: [ 62.143444][ T1157] dump_stack+0x18f/0x20d [ 62.147762][ T1157] check_preemption_disabled+0x20d/0x220 [ 62.153369][ T1157] ext4_mb_new_blocks+0xa4d/0x3b70 [ 62.158463][ T1157] ? ext4_ext_search_right+0x2ca/0xb20 [ 62.164042][ T1157] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 62.170291][ T1157] ext4_ext_map_blocks+0x201b/0x33e0 [ 62.175597][ T1157] ? ext4_ext_release+0x10/0x10 [ 62.180432][ T1157] ? down_write_killable+0x170/0x170 [ 62.185804][ T1157] ? ext4_es_lookup_extent+0x41d/0xd10 [ 62.191242][ T1157] ext4_map_blocks+0x4cb/0x1640 [ 62.196069][ T1157] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 62.201246][ T1157] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 62.206774][ T1157] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.212739][ T1157] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 62.218174][ T1157] ext4_writepages+0x1a83/0x33c0 [ 62.223093][ T1157] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.228802][ T1157] ? __lock_acquire+0x2224/0x48b0 [ 62.233851][ T1157] ? __ext4_mark_inode_dirty+0x940/0x940 [ 62.239470][ T1157] ? do_writepages+0xf3/0x2a0 [ 62.244137][ T1157] do_writepages+0xf3/0x2a0 [ 62.248629][ T1157] ? page_writeback_cpu_online+0x10/0x10 [ 62.254237][ T1157] ? do_raw_spin_lock+0x120/0x2d0 [ 62.259234][ T1157] ? do_raw_spin_unlock+0x171/0x260 [ 62.264407][ T1157] ? _raw_spin_unlock+0x24/0x40 [ 62.269251][ T1157] __filemap_fdatawrite_range+0x2aa/0x390 [ 62.275004][ T1157] ? collapse_file+0x35a2/0x4330 [ 62.279923][ T1157] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 62.286008][ T1157] ? _raw_spin_unlock_irq+0x1f/0x80 [ 62.291185][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.297146][ T1157] collapse_file+0x35ac/0x4330 [ 62.301898][ T1157] ? collapse_huge_page+0x4350/0x4350 [ 62.307243][ T1157] ? khugepaged+0x2506/0x3fc0 [ 62.311902][ T1157] ? xas_find+0x31a/0x880 [ 62.316206][ T1157] ? check_preemption_disabled+0x38/0x220 [ 62.321902][ T1157] khugepaged+0x3041/0x3fc0 [ 62.326405][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.332101][ T1157] ? lock_downgrade+0x840/0x840 [ 62.336928][ T1157] ? finish_wait+0x260/0x260 [ 62.341498][ T1157] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 62.347294][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.353250][ T1157] ? __kthread_parkme+0x13f/0x1e0 [ 62.358249][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 62.363857][ T1157] kthread+0x3b5/0x4a0 [ 62.367901][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.373591][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.379288][ T1157] ret_from_fork+0x1f/0x30