[ 50.860722][ T6729] RBP: 00007f06459c7680 R08: 0000000000000100 R09: 0000000000000000 [ 50.860730][ T6729] R10: 000055c1b472e980 R11: 0000000000000246 R12: 00000000000001ed [ 50.860737][ T6729] R13: 00007ffc4875b890 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 57.908179][ T103] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:3/103 [ 57.917388][ T103] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 57.923749][ T103] CPU: 1 PID: 103 Comm: kworker/u4:3 Not tainted 5.7.0-syzkaller #0 [ 57.931720][ T103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.941765][ T103] Workqueue: writeback wb_workfn (flush-8:0) [ 57.947721][ T103] Call Trace: [ 57.951013][ T103] dump_stack+0x188/0x20d [ 57.955389][ T103] debug_smp_processor_id.cold+0x88/0x9b [ 57.961017][ T103] ext4_mb_new_blocks+0xa77/0x3b30 [ 57.966133][ T103] ? __kmalloc+0x62f/0x7a0 [ 57.970553][ T103] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.975990][ T103] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.981704][ T103] ext4_ext_map_blocks+0x2044/0x3410 [ 57.987071][ T103] ? ext4_ext_release+0x10/0x10 [ 57.991913][ T103] ? __down_timeout+0x2d0/0x2d0 [ 57.996756][ T103] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.002204][ T103] ? debug_smp_processor_id+0x2f/0x185 [ 58.007642][ T103] ext4_map_blocks+0x4cb/0x1640 [ 58.012473][ T103] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.017659][ T103] ? debug_smp_processor_id+0x2f/0x185 [ 58.023096][ T103] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.028617][ T103] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.034573][ T103] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 58.040010][ T103] ext4_writepages+0x1ab7/0x3400 [ 58.044935][ T103] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.050542][ T103] ? __lock_acquire+0x2224/0x48a0 [ 58.055563][ T103] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 58.061535][ T103] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 58.067508][ T103] ? __ext4_mark_inode_dirty+0x950/0x950 [ 58.073133][ T103] ? do_writepages+0xfa/0x2a0 [ 58.077787][ T103] do_writepages+0xfa/0x2a0 [ 58.082284][ T103] ? page_writeback_cpu_online+0x10/0x10 [ 58.087890][ T103] ? debug_smp_processor_id+0x2f/0x185 [ 58.093330][ T103] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.098864][ T103] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.104841][ T103] ? lock_downgrade+0x840/0x840 [ 58.109671][ T103] __writeback_single_inode+0x12a/0x1410 [ 58.115294][ T103] ? _raw_spin_unlock+0x24/0x40 [ 58.120136][ T103] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 58.126091][ T103] writeback_sb_inodes+0x515/0xdd0 [ 58.131189][ T103] ? __writeback_single_inode+0x1410/0x1410 [ 58.137068][ T103] __writeback_inodes_wb+0xc3/0x250 [ 58.142247][ T103] wb_writeback+0x910/0xd90 [ 58.146741][ T103] ? print_usage_bug+0x240/0x240 [ 58.151671][ T103] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 58.157976][ T103] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 58.163846][ T103] ? cpumask_next+0x3c/0x40 [ 58.168327][ T103] ? get_nr_dirty_inodes+0xd6/0x130 [ 58.173517][ T103] wb_workfn+0xadf/0x10d0 [ 58.177853][ T103] ? inode_wait_for_writeback+0x30/0x30 [ 58.183387][ T103] ? debug_smp_processor_id+0x2f/0x185 [ 58.188839][ T103] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.194459][ T103] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.200432][ T103] process_one_work+0x965/0x16a0 [ 58.205351][ T103] ? lock_release+0x800/0x800 [ 58.210027][ T103] ? pwq_dec_nr_in_flight+0x310/0x310 [ 58.215384][ T103] ? rwlock_bug.part.0+0x90/0x90 [ 58.220316][ T103] worker_thread+0x96/0xe10 [ 58.224799][ T103] ? process_one_work+0x16a0/0x16a0 [ 58.230011][ T103] kthread+0x388/0x470 [ 58.234063][ T103] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.239771][ T103] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.245482][ T103] ret_from_fork+0x24/0x30 Warning: Permanently added '10.128.10.1' (ECDSA) to the list of known hosts. 2020/06/14 10:21:23 fuzzer started 2020/06/14 10:21:23 connecting to host at 10.128.0.26:35061 2020/06/14 10:21:23 checking machine... 2020/06/14 10:21:23 checking revisions... 2020/06/14 10:21:23 testing simple program... [ 59.650688][ T6791] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6791 [ 59.659898][ T6791] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.665772][ T6791] CPU: 0 PID: 6791 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 59.673641][ T6791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.683720][ T6791] Call Trace: [ 59.687000][ T6791] dump_stack+0x188/0x20d [ 59.691319][ T6791] debug_smp_processor_id.cold+0x88/0x9b [ 59.696937][ T6791] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.702036][ T6791] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.707474][ T6791] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.713172][ T6791] ext4_ext_map_blocks+0x2044/0x3410 [ 59.718459][ T6791] ? ext4_ext_release+0x10/0x10 [ 59.723327][ T6791] ? __down_timeout+0x2d0/0x2d0 [ 59.728152][ T6791] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.733590][ T6791] ext4_map_blocks+0x4cb/0x1640 [ 59.738420][ T6791] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.743591][ T6791] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.749112][ T6791] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.755068][ T6791] ? prandom_u32_state+0xe/0x170 [ 59.759995][ T6791] ? __brelse+0x84/0xa0 [ 59.764137][ T6791] ? __ext4_new_inode+0x144/0x57c0 [ 59.769236][ T6791] ext4_getblk+0xad/0x520 [ 59.773541][ T6791] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.779251][ T6791] ? ext4_free_inode+0x17e0/0x17e0 [ 59.784349][ T6791] ext4_bread+0x7c/0x380 [ 59.788583][ T6791] ? ext4_getblk+0x520/0x520 [ 59.793148][ T6791] ? dqget+0xff0/0xff0 [ 59.797201][ T6791] ext4_append+0x153/0x360 [ 59.801596][ T6791] ext4_mkdir+0x5e0/0xdf0 [ 59.805906][ T6791] ? ext4_rmdir+0xde0/0xde0 [ 59.810398][ T6791] ? security_inode_permission+0xc4/0xf0 [ 59.816009][ T6791] vfs_mkdir+0x419/0x690 [ 59.820246][ T6791] do_mkdirat+0x21e/0x280 [ 59.824554][ T6791] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.829391][ T6791] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.835368][ T6791] ? do_syscall_64+0x21/0x7d0 [ 59.840020][ T6791] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.845979][ T6791] do_syscall_64+0xf6/0x7d0 [ 59.850460][ T6791] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.856344][ T6791] RIP: 0033:0x4b02a0 [ 59.860216][ T6791] Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 59.879808][ T6791] RSP: 002b:000000c0000df4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.888192][ T6791] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 59.896150][ T6791] RDX: 00000000000001c0 RSI: 000000c0002f4920 RDI: ffffffffffffff9c [ 59.904094][ T6791] RBP: 000000c0000df510 R08: 0000000000000000 R09: 0000000000000000 [ 59.912048][ T6791] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.920004][ T6791] R13: 000000000000004a R14: 0000000000000049 R15: 0000000000000100 [ 59.947953][ T6809] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6809 [ 59.957446][ T6809] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.963334][ T6809] CPU: 1 PID: 6809 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.971601][ T6809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.981652][ T6809] Call Trace: [ 59.984941][ T6809] dump_stack+0x188/0x20d [ 59.989276][ T6809] debug_smp_processor_id.cold+0x88/0x9b [ 59.994901][ T6809] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.000012][ T6809] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.005454][ T6809] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.011175][ T6809] ext4_ext_map_blocks+0x2044/0x3410 [ 60.016461][ T6809] ? ext4_ext_release+0x10/0x10 [ 60.021305][ T6809] ? __down_timeout+0x2d0/0x2d0 [ 60.026134][ T6809] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.031570][ T6809] ext4_map_blocks+0x4cb/0x1640 [ 60.036405][ T6809] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.041581][ T6809] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.047108][ T6809] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.053076][ T6809] ? prandom_u32_state+0xe/0x170 [ 60.057990][ T6809] ? __brelse+0x84/0xa0 [ 60.062141][ T6809] ? __ext4_new_inode+0x144/0x57c0 [ 60.067230][ T6809] ext4_getblk+0xad/0x520 [ 60.071536][ T6809] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.077233][ T6809] ? ext4_free_inode+0x17e0/0x17e0 [ 60.082321][ T6809] ext4_bread+0x7c/0x380 [ 60.086556][ T6809] ? ext4_getblk+0x520/0x520 [ 60.091140][ T6809] ? dqget+0xff0/0xff0 [ 60.095198][ T6809] ext4_append+0x153/0x360 [ 60.099624][ T6809] ext4_mkdir+0x5e0/0xdf0 [ 60.103944][ T6809] ? ext4_rmdir+0xde0/0xde0 [ 60.108432][ T6809] ? security_inode_permission+0xc4/0xf0 [ 60.114055][ T6809] vfs_mkdir+0x419/0x690 [ 60.118303][ T6809] do_mkdirat+0x21e/0x280 [ 60.122618][ T6809] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.127451][ T6809] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.133427][ T6809] ? do_syscall_64+0x21/0x7d0 [ 60.138095][ T6809] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.144068][ T6809] do_syscall_64+0xf6/0x7d0 [ 60.148570][ T6809] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.154445][ T6809] RIP: 0033:0x45bee7 [ 60.158325][ T6809] Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 60.177914][ T6809] RSP: 002b:00007ffc45756908 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 60.186317][ T6809] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 60.194274][ T6809] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffc45756ae0 [ 60.202242][ T6809] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 00000000000035c0 [ 60.210228][ T6809] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 60.218191][ T6809] R13: 00007ffc45756ae0 R14: 8421084210842109 R15: 00007ffc45756aec [ 60.304704][ T6810] IPVS: ftp: loaded support on port[0] = 21 [ 60.341877][ T6810] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6810 [ 60.351446][ T6810] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.357575][ T6810] CPU: 1 PID: 6810 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.365901][ T6810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.375993][ T6810] Call Trace: [ 60.379287][ T6810] dump_stack+0x188/0x20d [ 60.383620][ T6810] debug_smp_processor_id.cold+0x88/0x9b [ 60.389245][ T6810] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.394338][ T6810] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.399787][ T6810] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.405482][ T6810] ext4_ext_map_blocks+0x2044/0x3410 [ 60.410750][ T6810] ? ext4_ext_release+0x10/0x10 [ 60.415620][ T6810] ? __down_timeout+0x2d0/0x2d0 [ 60.420462][ T6810] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.425913][ T6810] ext4_map_blocks+0x4cb/0x1640 [ 60.430746][ T6810] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.435921][ T6810] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.441505][ T6810] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.447493][ T6810] ? prandom_u32_state+0xe/0x170 [ 60.452411][ T6810] ? __brelse+0x84/0xa0 [ 60.456545][ T6810] ? __ext4_new_inode+0x144/0x57c0 [ 60.461638][ T6810] ext4_getblk+0xad/0x520 [ 60.465985][ T6810] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.471715][ T6810] ? ext4_free_inode+0x17e0/0x17e0 [ 60.476827][ T6810] ext4_bread+0x7c/0x380 [ 60.481061][ T6810] ? ext4_getblk+0x520/0x520 [ 60.485633][ T6810] ? dqget+0xff0/0xff0 [ 60.489684][ T6810] ext4_append+0x153/0x360 [ 60.494081][ T6810] ext4_mkdir+0x5e0/0xdf0 [ 60.498400][ T6810] ? ext4_rmdir+0xde0/0xde0 [ 60.502893][ T6810] ? security_inode_permission+0xc4/0xf0 [ 60.508522][ T6810] vfs_mkdir+0x419/0x690 [ 60.512741][ T6810] do_mkdirat+0x21e/0x280 [ 60.517055][ T6810] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.521896][ T6810] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.527855][ T6810] ? do_syscall_64+0x21/0x7d0 [ 60.532507][ T6810] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.538477][ T6810] do_syscall_64+0xf6/0x7d0 [ 60.542970][ T6810] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.548837][ T6810] RIP: 0033:0x45bee7 [ 60.552731][ T6810] Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 60.572320][ T6810] RSP: 002b:00007ffc457567f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 60.580977][ T6810] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 60.588938][ T6810] RDX: 00007ffc45756843 RSI: 00000000000001ff RDI: 00007ffc45756840 [ 60.596884][ T6810] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 60.604845][ T6810] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 60.612806][ T6810] R13: 00007ffc45756830 R14: 0000000000000000 R15: 00007ffc45756840 [ 60.661981][ T6810] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6810 [ 60.671613][ T6810] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.677907][ T6810] CPU: 0 PID: 6810 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.686176][ T6810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.696229][ T6810] Call Trace: [ 60.699565][ T6810] dump_stack+0x188/0x20d [ 60.703903][ T6810] debug_smp_processor_id.cold+0x88/0x9b [ 60.709541][ T6810] ext4_mb_new_blocks+0xa77/0x3b30 [ 60.714672][ T6810] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.720140][ T6810] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.725866][ T6810] ext4_ext_map_blocks+0x2044/0x3410 [ 60.731157][ T6810] ? ext4_ext_release+0x10/0x10 [ 60.736028][ T6810] ? __down_timeout+0x2d0/0x2d0 [ 60.740883][ T6810] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.746337][ T6810] ext4_map_blocks+0x4cb/0x1640 [ 60.751362][ T6810] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.756594][ T6810] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.762138][ T6810] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.768097][ T6810] ? prandom_u32_state+0xe/0x170 [ 60.773040][ T6810] ? __brelse+0x84/0xa0 [ 60.777198][ T6810] ? __ext4_new_inode+0x144/0x57c0 [ 60.782289][ T6810] ext4_getblk+0xad/0x520 [ 60.786595][ T6810] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.792297][ T6810] ? ext4_free_inode+0x17e0/0x17e0 [ 60.797402][ T6810] ext4_bread+0x7c/0x380 [ 60.801623][ T6810] ? ext4_getblk+0x520/0x520 [ 60.806188][ T6810] ? dqget+0xff0/0xff0 [ 60.810238][ T6810] ext4_append+0x153/0x360 [ 60.814637][ T6810] ext4_mkdir+0x5e0/0xdf0 [ 60.818949][ T6810] ? ext4_rmdir+0xde0/0xde0 [ 60.823433][ T6810] ? security_inode_permission+0xc4/0xf0 [ 60.829044][ T6810] vfs_mkdir+0x419/0x690 [ 60.833270][ T6810] do_mkdirat+0x21e/0x280 [ 60.837597][ T6810] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.842581][ T6810] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.848570][ T6810] ? do_syscall_64+0x21/0x7d0 [ 60.853227][ T6810] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.859188][ T6810] do_syscall_64+0xf6/0x7d0 [ 60.863673][ T6810] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.869543][ T6810] RIP: 0033:0x45bee7 [ 60.873413][ T6810] Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 60.893090][ T6810] RSP: 002b:00007ffc457567f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 60.901493][ T6810] RAX: ffffffffffffffda RBX: 000000000000ecf4 RCX: 000000000045bee7 2020/06/14 10:21:24 building call list... [ 60.909604][ T6810] RDX: 00007ffc45756843 RSI: 00000000000001ff RDI: 00007ffc45756840 [ 60.917572][ T6810] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 60.925611][ T6810] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 60.933574][ T6810] R13: 00007ffc45756830 R14: 000000000000ecf1 R15: 00007ffc45756840 [ 60.964154][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 60.973449][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 60.979470][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 60.987352][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.997395][ T1155] Call Trace: [ 61.000682][ T1155] dump_stack+0x188/0x20d [ 61.005020][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 61.010667][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.015782][ T1155] ? __kmalloc+0x62f/0x7a0 [ 61.020207][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.025659][ T1155] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.031378][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 61.036666][ T1155] ? ext4_ext_release+0x10/0x10 [ 61.041525][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 61.046370][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.051827][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 61.056679][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.061874][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 61.067333][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.072871][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.078845][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.084303][ T1155] ext4_writepages+0x1ab7/0x3400 [ 61.089252][ T1155] ? mark_lock+0x30/0xdd0 [ 61.093592][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.099275][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.104898][ T1155] ? do_writepages+0xfa/0x2a0 [ 61.109572][ T1155] do_writepages+0xfa/0x2a0 [ 61.114075][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 61.119703][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 61.124718][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 61.129914][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 61.134762][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.140483][ T1155] ? collapse_file+0x3575/0x4300 [ 61.145435][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.151518][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.156724][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.162711][ T1155] collapse_file+0x357f/0x4300 [ 61.167489][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 61.172853][ T1155] ? khugepaged+0x24fa/0x3f80 [ 61.177546][ T1155] khugepaged+0x3049/0x3f80 [ 61.182086][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.187716][ T1155] ? lock_downgrade+0x840/0x840 [ 61.193256][ T1155] ? finish_wait+0x260/0x260 [ 61.197842][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.203640][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.209641][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 61.214662][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.220307][ T1155] kthread+0x388/0x470 [ 61.224369][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.230080][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.235794][ T1155] ret_from_fork+0x24/0x30 [ 61.306867][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 61.316029][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.322014][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.329900][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.339959][ T1155] Call Trace: [ 61.343261][ T1155] dump_stack+0x188/0x20d [ 61.347592][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 61.353229][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.358357][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.363820][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.370062][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 61.375359][ T1155] ? ext4_ext_release+0x10/0x10 [ 61.380224][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 61.385069][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.390532][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 61.395385][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.400573][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 61.406030][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.411575][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.417552][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.423016][ T1155] ext4_writepages+0x1ab7/0x3400 [ 61.427958][ T1155] ? mark_lock+0x30/0xdd0 [ 61.432297][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.437958][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.443582][ T1155] ? do_writepages+0xfa/0x2a0 [ 61.448250][ T1155] do_writepages+0xfa/0x2a0 [ 61.452757][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 61.458385][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 61.463413][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 61.468610][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 61.473462][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.479181][ T1155] ? collapse_file+0x3575/0x4300 [ 61.484114][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.490185][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.495379][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.501356][ T1155] collapse_file+0x357f/0x4300 [ 61.506138][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 61.511543][ T1155] ? khugepaged+0x24fa/0x3f80 [ 61.516255][ T1155] khugepaged+0x3049/0x3f80 [ 61.520779][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.526411][ T1155] ? lock_downgrade+0x840/0x840 [ 61.531955][ T1155] ? finish_wait+0x260/0x260 [ 61.536545][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.542346][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.548334][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 61.553364][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.559000][ T1155] kthread+0x388/0x470 [ 61.563071][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.568822][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.574544][ T1155] ret_from_fork+0x24/0x30 [ 61.622985][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 61.632090][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.638077][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.645954][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.656024][ T1155] Call Trace: [ 61.659313][ T1155] dump_stack+0x188/0x20d [ 61.663639][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 61.669264][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.674377][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.679833][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.685977][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 61.691263][ T1155] ? ext4_ext_release+0x10/0x10 [ 61.696123][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 61.700993][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.706456][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 61.711322][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.716528][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 61.722001][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.727547][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.733523][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.738982][ T1155] ext4_writepages+0x1ab7/0x3400 [ 61.743924][ T1155] ? mark_lock+0x30/0xdd0 [ 61.748268][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.753928][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.759575][ T1155] ? do_writepages+0xfa/0x2a0 [ 61.764244][ T1155] do_writepages+0xfa/0x2a0 [ 61.768747][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 61.774372][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 61.779388][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 61.784583][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 61.789456][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.795168][ T1155] ? collapse_file+0x3575/0x4300 [ 61.800103][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 61.806170][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.811362][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.817342][ T1155] collapse_file+0x357f/0x4300 [ 61.822123][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 61.827492][ T1155] ? khugepaged+0x24fa/0x3f80 [ 61.832183][ T1155] khugepaged+0x3049/0x3f80 [ 61.836706][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.842333][ T1155] ? lock_downgrade+0x840/0x840 [ 61.847184][ T1155] ? finish_wait+0x260/0x260 [ 61.851771][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.857571][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.863570][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 61.868591][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.874220][ T1155] kthread+0x388/0x470 [ 61.878290][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.884000][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.889715][ T1155] ret_from_fork+0x24/0x30 [ 62.037308][ T362] tipc: TX() has been purged, node left! executing program [ 62.925054][ T6796] can: request_module (can-proto-0) failed. [ 63.982346][ T6796] can: request_module (can-proto-0) failed. [ 63.994533][ T6796] can: request_module (can-proto-0) failed.