syzkaller login: [ 52.787997][ T6773] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6773 [ 52.797903][ T6773] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 52.803809][ T6773] CPU: 0 PID: 6773 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 52.812049][ T6773] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.822091][ T6773] Call Trace: [ 52.825365][ T6773] dump_stack+0x188/0x20d [ 52.829688][ T6773] debug_smp_processor_id.cold+0x88/0x9b [ 52.835294][ T6773] ext4_mb_new_blocks+0xa77/0x3b30 [ 52.840386][ T6773] ? ext4_ext_search_right+0x2ca/0xb20 [ 52.845823][ T6773] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 52.851526][ T6773] ext4_ext_map_blocks+0x2044/0x3410 [ 52.856810][ T6773] ? ext4_ext_release+0x10/0x10 [ 52.861655][ T6773] ? __down_timeout+0x2d0/0x2d0 [ 52.866495][ T6773] ? ext4_es_lookup_extent+0x41d/0xd30 [ 52.871944][ T6773] ext4_map_blocks+0x4cb/0x1640 [ 52.876773][ T6773] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 52.881950][ T6773] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 52.887472][ T6773] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 52.893426][ T6773] ? prandom_u32_state+0xe/0x170 [ 52.898339][ T6773] ? __brelse+0x84/0xa0 [ 52.902471][ T6773] ? __ext4_new_inode+0x144/0x57c0 [ 52.907573][ T6773] ext4_getblk+0xad/0x520 [ 52.911876][ T6773] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 52.917586][ T6773] ? ext4_free_inode+0x17e0/0x17e0 [ 52.922674][ T6773] ext4_bread+0x7c/0x380 [ 52.926905][ T6773] ? ext4_getblk+0x520/0x520 [ 52.931468][ T6773] ? dqget+0xff0/0xff0 [ 52.935536][ T6773] ext4_append+0x153/0x360 [ 52.939940][ T6773] ext4_mkdir+0x5e0/0xdf0 [ 52.944247][ T6773] ? ext4_rmdir+0xde0/0xde0 [ 52.948793][ T6773] ? security_inode_permission+0xc4/0xf0 [ 52.954427][ T6773] vfs_mkdir+0x419/0x690 [ 52.958658][ T6773] do_mkdirat+0x21e/0x280 [ 52.962983][ T6773] ? __ia32_sys_mknod+0xb0/0xb0 [ 52.967984][ T6773] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 52.973940][ T6773] ? do_syscall_64+0x21/0x7d0 [ 52.978593][ T6773] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 52.985245][ T6773] do_syscall_64+0xf6/0x7d0 [ 52.989739][ T6773] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 52.995604][ T6773] RIP: 0033:0x7fa52ca04687 [ 52.999992][ T6773] Code: 00 b8 ff ff ff ff c3 0f 1f 40 00 48 8b 05 09 d8 2b 00 64 c7 00 5f 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 d7 2b 00 f7 d8 64 89 01 48 [ 53.019586][ T6773] RSP: 002b:00007ffdccf6d608 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 53.027983][ T6773] RAX: ffffffffffffffda RBX: 000055598f2bf985 RCX: 00007fa52ca04687 [ 53.035931][ T6773] RDX: 00007ffdccf6d4d0 RSI: 00000000000001ed RDI: 000055598f2bf985 [ 53.043876][ T6773] RBP: 00007fa52ca04680 R08: 0000000000000100 R09: 0000000000000000 [ 53.051822][ T6773] R10: 000055598f2bf980 R11: 0000000000000246 R12: 00000000000001ed [ 53.059780][ T6773] R13: 00007ffdccf6d790 R14: 0000000000000000 R15: 0000000000000000 Warning: Permanently added '10.128.0.87' (ECDSA) to the list of known hosts. 2020/06/13 06:43:55 fuzzer started 2020/06/13 06:43:55 connecting to host at 10.128.0.26:43097 2020/06/13 06:43:55 checking machine... 2020/06/13 06:43:55 checking revisions... 2020/06/13 06:43:55 testing simple program... [ 57.991383][ T6795] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6795 [ 58.000470][ T6795] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.006453][ T6795] CPU: 0 PID: 6795 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 58.014342][ T6795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.024410][ T6795] Call Trace: [ 58.027682][ T6795] dump_stack+0x188/0x20d [ 58.031996][ T6795] debug_smp_processor_id.cold+0x88/0x9b [ 58.037611][ T6795] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.042706][ T6795] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.048150][ T6795] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.053862][ T6795] ext4_ext_map_blocks+0x2044/0x3410 [ 58.059126][ T6795] ? ext4_ext_release+0x10/0x10 [ 58.063976][ T6795] ? __down_timeout+0x2d0/0x2d0 [ 58.068801][ T6795] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.074242][ T6795] ext4_map_blocks+0x4cb/0x1640 [ 58.079084][ T6795] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.084256][ T6795] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.089778][ T6795] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.095738][ T6795] ? prandom_u32_state+0xe/0x170 [ 58.100667][ T6795] ? __brelse+0x84/0xa0 [ 58.104798][ T6795] ? __ext4_new_inode+0x144/0x57c0 [ 58.109886][ T6795] ext4_getblk+0xad/0x520 [ 58.114206][ T6795] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.119914][ T6795] ? ext4_free_inode+0x17e0/0x17e0 [ 58.125014][ T6795] ext4_bread+0x7c/0x380 [ 58.129231][ T6795] ? ext4_getblk+0x520/0x520 [ 58.133795][ T6795] ? dqget+0xff0/0xff0 [ 58.137844][ T6795] ext4_append+0x153/0x360 [ 58.142671][ T6795] ext4_mkdir+0x5e0/0xdf0 [ 58.146981][ T6795] ? ext4_rmdir+0xde0/0xde0 [ 58.151459][ T6795] ? security_inode_permission+0xc4/0xf0 [ 58.157075][ T6795] vfs_mkdir+0x419/0x690 [ 58.161308][ T6795] do_mkdirat+0x21e/0x280 [ 58.165615][ T6795] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.170452][ T6795] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.176422][ T6795] ? do_syscall_64+0x21/0x7d0 [ 58.181082][ T6795] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.187051][ T6795] do_syscall_64+0xf6/0x7d0 [ 58.191562][ T6795] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.197447][ T6795] RIP: 0033:0x4b02a0 [ 58.201320][ T6795] 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 [ 58.221069][ T6795] RSP: 002b:000000c0000e54b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 58.229488][ T6795] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 58.237443][ T6795] RDX: 00000000000001c0 RSI: 000000c000026340 RDI: ffffffffffffff9c [ 58.245410][ T6795] RBP: 000000c0000e5510 R08: 0000000000000000 R09: 0000000000000000 [ 58.253355][ T6795] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 58.261301][ T6795] R13: 000000000000001b R14: 000000000000001a R15: 0000000000000100 [ 58.307157][ T6799] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6799 [ 58.316770][ T6799] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.322671][ T6799] CPU: 0 PID: 6799 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.331882][ T6799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.341931][ T6799] Call Trace: [ 58.345203][ T6799] dump_stack+0x188/0x20d [ 58.349783][ T6799] debug_smp_processor_id.cold+0x88/0x9b [ 58.355416][ T6799] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.360525][ T6799] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.365970][ T6799] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.371666][ T6799] ext4_ext_map_blocks+0x2044/0x3410 [ 58.376931][ T6799] ? ext4_ext_release+0x10/0x10 [ 58.381767][ T6799] ? __down_timeout+0x2d0/0x2d0 [ 58.386593][ T6799] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.392051][ T6799] ext4_map_blocks+0x4cb/0x1640 [ 58.396883][ T6799] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.402059][ T6799] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.407580][ T6799] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.413536][ T6799] ? prandom_u32_state+0xe/0x170 [ 58.419164][ T6799] ? __brelse+0x84/0xa0 [ 58.423382][ T6799] ? __ext4_new_inode+0x144/0x57c0 [ 58.428474][ T6799] ext4_getblk+0xad/0x520 [ 58.432791][ T6799] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.438489][ T6799] ? ext4_free_inode+0x17e0/0x17e0 [ 58.443577][ T6799] ext4_bread+0x7c/0x380 [ 58.447795][ T6799] ? ext4_getblk+0x520/0x520 [ 58.452370][ T6799] ? dqget+0xff0/0xff0 [ 58.456420][ T6799] ext4_append+0x153/0x360 [ 58.460815][ T6799] ext4_mkdir+0x5e0/0xdf0 [ 58.465138][ T6799] ? ext4_rmdir+0xde0/0xde0 [ 58.469629][ T6799] ? security_inode_permission+0xc4/0xf0 [ 58.475239][ T6799] vfs_mkdir+0x419/0x690 [ 58.480591][ T6799] do_mkdirat+0x21e/0x280 [ 58.484918][ T6799] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.489746][ T6799] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.495711][ T6799] ? do_syscall_64+0x21/0x7d0 [ 58.500373][ T6799] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.506343][ T6799] do_syscall_64+0xf6/0x7d0 [ 58.510828][ T6799] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.516695][ T6799] RIP: 0033:0x45bee7 [ 58.520564][ T6799] 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 [ 58.540144][ T6799] RSP: 002b:00007ffeadf870e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 58.548533][ T6799] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 58.556498][ T6799] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffeadf872c0 [ 58.564463][ T6799] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002e00 [ 58.572439][ T6799] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 58.580405][ T6799] R13: 00007ffeadf872c0 R14: 8421084210842109 R15: 00007ffeadf872cc [ 58.663896][ T6801] IPVS: ftp: loaded support on port[0] = 21 [ 58.702298][ T6801] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6801 [ 58.711886][ T6801] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 58.717842][ T6801] CPU: 1 PID: 6801 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.726100][ T6801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.736267][ T6801] Call Trace: [ 58.739545][ T6801] dump_stack+0x188/0x20d [ 58.743872][ T6801] debug_smp_processor_id.cold+0x88/0x9b [ 58.749487][ T6801] ext4_mb_new_blocks+0xa77/0x3b30 [ 58.754596][ T6801] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.760030][ T6801] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.765730][ T6801] ext4_ext_map_blocks+0x2044/0x3410 [ 58.771005][ T6801] ? ext4_ext_release+0x10/0x10 [ 58.775840][ T6801] ? __down_timeout+0x2d0/0x2d0 [ 58.780674][ T6801] ? ext4_es_lookup_extent+0x41d/0xd30 [ 58.786126][ T6801] ext4_map_blocks+0x4cb/0x1640 [ 58.790956][ T6801] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.796152][ T6801] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.801685][ T6801] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.807660][ T6801] ? prandom_u32_state+0xe/0x170 [ 58.812573][ T6801] ? __brelse+0x84/0xa0 [ 58.816711][ T6801] ? __ext4_new_inode+0x144/0x57c0 [ 58.821801][ T6801] ext4_getblk+0xad/0x520 [ 58.826109][ T6801] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.831805][ T6801] ? ext4_free_inode+0x17e0/0x17e0 [ 58.836893][ T6801] ext4_bread+0x7c/0x380 [ 58.841122][ T6801] ? ext4_getblk+0x520/0x520 [ 58.845698][ T6801] ? dqget+0xff0/0xff0 [ 58.849808][ T6801] ext4_append+0x153/0x360 [ 58.854203][ T6801] ext4_mkdir+0x5e0/0xdf0 [ 58.858524][ T6801] ? ext4_rmdir+0xde0/0xde0 [ 58.863006][ T6801] ? security_inode_permission+0xc4/0xf0 [ 58.868616][ T6801] vfs_mkdir+0x419/0x690 [ 58.872959][ T6801] do_mkdirat+0x21e/0x280 [ 58.877277][ T6801] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.882111][ T6801] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.888096][ T6801] ? do_syscall_64+0x21/0x7d0 [ 58.892764][ T6801] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.898723][ T6801] do_syscall_64+0xf6/0x7d0 [ 58.903206][ T6801] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.909074][ T6801] RIP: 0033:0x45bee7 [ 58.912958][ T6801] 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 [ 58.932547][ T6801] RSP: 002b:00007ffeadf86fd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 58.940935][ T6801] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 58.948883][ T6801] RDX: 00007ffeadf87023 RSI: 00000000000001ff RDI: 00007ffeadf87020 [ 58.956847][ T6801] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 58.964809][ T6801] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 58.972773][ T6801] R13: 00007ffeadf87010 R14: 0000000000000000 R15: 00007ffeadf87020 [ 58.999597][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 59.009070][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.015054][ T1155] CPU: 0 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 59.022939][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.032993][ T1155] Call Trace: [ 59.036292][ T1155] dump_stack+0x188/0x20d [ 59.040630][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 59.046267][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.051381][ T1155] ? __kmalloc+0x62f/0x7a0 [ 59.055792][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.061231][ T1155] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.066935][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 59.072218][ T1155] ? ext4_ext_release+0x10/0x10 [ 59.077061][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 59.081899][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.087342][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 59.092177][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.097365][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 59.102806][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.108341][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.114302][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.119742][ T1155] ext4_writepages+0x1ab7/0x3400 [ 59.124671][ T1155] ? mark_lock+0x30/0xdd0 [ 59.129004][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.134634][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.140257][ T1155] ? do_writepages+0xfa/0x2a0 [ 59.144925][ T1155] do_writepages+0xfa/0x2a0 [ 59.149409][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 59.155141][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 59.160271][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 59.165456][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 59.170299][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.176007][ T1155] ? collapse_file+0x3575/0x4300 [ 59.180930][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 59.186983][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.192180][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.198151][ T1155] collapse_file+0x357f/0x4300 [ 59.202917][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 59.208267][ T1155] ? khugepaged+0x24fa/0x3f80 [ 59.212949][ T1155] khugepaged+0x3049/0x3f80 [ 59.217462][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.223088][ T1155] ? lock_downgrade+0x840/0x840 [ 59.227922][ T1155] ? finish_wait+0x260/0x260 [ 59.232503][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.238470][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.244454][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 59.249488][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.255126][ T1155] kthread+0x388/0x470 [ 59.259179][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.264893][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.270594][ T1155] ret_from_fork+0x24/0x30 [ 59.297944][ T6801] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6801 [ 59.307563][ T6801] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.313510][ T6801] CPU: 1 PID: 6801 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.321734][ T6801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.331776][ T6801] Call Trace: [ 59.335080][ T6801] dump_stack+0x188/0x20d [ 59.339424][ T6801] debug_smp_processor_id.cold+0x88/0x9b [ 59.345061][ T6801] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.350191][ T6801] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.355657][ T6801] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.361388][ T6801] ext4_ext_map_blocks+0x2044/0x3410 [ 59.366685][ T6801] ? ext4_ext_release+0x10/0x10 [ 59.371563][ T6801] ? __down_timeout+0x2d0/0x2d0 [ 59.376414][ T6801] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.381878][ T6801] ext4_map_blocks+0x4cb/0x1640 [ 59.386741][ T6801] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.391942][ T6801] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.397491][ T6801] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.403469][ T6801] ? prandom_u32_state+0xe/0x170 [ 59.408399][ T6801] ? __brelse+0x84/0xa0 [ 59.412534][ T6801] ? __ext4_new_inode+0x144/0x57c0 [ 59.417625][ T6801] ext4_getblk+0xad/0x520 [ 59.421941][ T6801] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.427648][ T6801] ? ext4_free_inode+0x17e0/0x17e0 [ 59.432738][ T6801] ext4_bread+0x7c/0x380 [ 59.436971][ T6801] ? ext4_getblk+0x520/0x520 [ 59.441536][ T6801] ? dqget+0xff0/0xff0 [ 59.445585][ T6801] ext4_append+0x153/0x360 [ 59.449979][ T6801] ext4_mkdir+0x5e0/0xdf0 [ 59.454390][ T6801] ? ext4_rmdir+0xde0/0xde0 [ 59.458882][ T6801] ? security_inode_permission+0xc4/0xf0 [ 59.464493][ T6801] vfs_mkdir+0x419/0x690 [ 59.468715][ T6801] do_mkdirat+0x21e/0x280 [ 59.473018][ T6801] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.477842][ T6801] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.483798][ T6801] ? do_syscall_64+0x21/0x7d0 [ 59.488450][ T6801] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.494407][ T6801] do_syscall_64+0xf6/0x7d0 [ 59.498888][ T6801] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.504750][ T6801] RIP: 0033:0x45bee7 [ 59.508650][ T6801] 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 [ 59.528229][ T6801] RSP: 002b:00007ffeadf86fd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 59.536636][ T6801] RAX: ffffffffffffffda RBX: 000000000000e79c RCX: 000000000045bee7 [ 59.544580][ T6801] RDX: 00007ffeadf87023 RSI: 00000000000001ff RDI: 00007ffeadf87020 [ 59.552538][ T6801] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 59.560482][ T6801] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 59.568426][ T6801] R13: 00007ffeadf87010 R14: 000000000000e674 R15: 00007ffeadf87020 [ 59.602229][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 59.611446][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 2020/06/13 06:43:57 building call list... [ 59.617426][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 59.625312][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.635360][ T1155] Call Trace: [ 59.638652][ T1155] dump_stack+0x188/0x20d [ 59.642983][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 59.648614][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.653740][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.659199][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 59.665350][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 59.670634][ T1155] ? ext4_ext_release+0x10/0x10 [ 59.675494][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 59.680350][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 59.685809][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 59.690665][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.695860][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 59.701327][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.706881][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.712858][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.718322][ T1155] ext4_writepages+0x1ab7/0x3400 [ 59.723282][ T1155] ? mark_lock+0x30/0xdd0 [ 59.727627][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.733284][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 59.738913][ T1155] ? do_writepages+0xfa/0x2a0 [ 59.743590][ T1155] do_writepages+0xfa/0x2a0 [ 59.748125][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 59.753862][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 59.758882][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 59.764077][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 59.769046][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.774759][ T1155] ? collapse_file+0x3575/0x4300 [ 59.779690][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 59.785779][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.790980][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.796978][ T1155] collapse_file+0x357f/0x4300 [ 59.801755][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 59.807137][ T1155] ? khugepaged+0x24fa/0x3f80 [ 59.811827][ T1155] khugepaged+0x3049/0x3f80 [ 59.816350][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.821981][ T1155] ? lock_downgrade+0x840/0x840 [ 59.826868][ T1155] ? finish_wait+0x260/0x260 [ 59.831465][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.837284][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.843269][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 59.848294][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.853921][ T1155] kthread+0x388/0x470 [ 59.858068][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.863778][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.869497][ T1155] ret_from_fork+0x24/0x30 [ 59.937890][ T1155] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1155 [ 59.947311][ T1155] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 59.953320][ T1155] CPU: 1 PID: 1155 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 59.961209][ T1155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.971255][ T1155] Call Trace: [ 59.974544][ T1155] dump_stack+0x188/0x20d [ 59.978889][ T1155] debug_smp_processor_id.cold+0x88/0x9b [ 59.984519][ T1155] ext4_mb_new_blocks+0xa77/0x3b30 [ 59.989634][ T1155] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.995134][ T1155] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.001395][ T1155] ext4_ext_map_blocks+0x2044/0x3410 [ 60.006687][ T1155] ? ext4_ext_release+0x10/0x10 [ 60.011561][ T1155] ? __down_timeout+0x2d0/0x2d0 [ 60.016409][ T1155] ? ext4_es_lookup_extent+0x41d/0xd30 [ 60.021868][ T1155] ext4_map_blocks+0x4cb/0x1640 [ 60.026725][ T1155] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.031916][ T1155] ? debug_smp_processor_id+0x2f/0x185 [ 60.037382][ T1155] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.042941][ T1155] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.048921][ T1155] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.054391][ T1155] ext4_writepages+0x1ab7/0x3400 [ 60.059346][ T1155] ? mark_lock+0x30/0xdd0 [ 60.063695][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.069359][ T1155] ? __ext4_mark_inode_dirty+0x950/0x950 [ 60.075009][ T1155] ? do_writepages+0xfa/0x2a0 [ 60.079693][ T1155] do_writepages+0xfa/0x2a0 [ 60.084205][ T1155] ? page_writeback_cpu_online+0x10/0x10 [ 60.089835][ T1155] ? do_raw_spin_lock+0x129/0x2e0 [ 60.094862][ T1155] ? do_raw_spin_unlock+0x171/0x260 [ 60.100058][ T1155] ? _raw_spin_unlock+0x24/0x40 [ 60.104910][ T1155] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.110632][ T1155] ? collapse_file+0x3575/0x4300 [ 60.115569][ T1155] ? delete_from_page_cache_batch+0xec0/0xec0 [ 60.121648][ T1155] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.126857][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.132842][ T1155] collapse_file+0x357f/0x4300 [ 60.137620][ T1155] ? collapse_huge_page+0x4370/0x4370 [ 60.142998][ T1155] ? khugepaged+0x24fa/0x3f80 [ 60.147701][ T1155] khugepaged+0x3049/0x3f80 [ 60.152270][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.157909][ T1155] ? lock_downgrade+0x840/0x840 [ 60.162756][ T1155] ? finish_wait+0x260/0x260 [ 60.167345][ T1155] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.175068][ T1155] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.181233][ T1155] ? __kthread_parkme+0x13f/0x1e0 [ 60.186253][ T1155] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.191887][ T1155] kthread+0x388/0x470 [ 60.195961][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.201683][ T1155] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.207399][ T1155] ret_from_fork+0x24/0x30 [ 60.403178][ T7] tipc: TX() has been purged, node left! executing program [ 61.043193][ T21] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:1/21 [ 61.052253][ T21] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 61.058288][ T21] CPU: 0 PID: 21 Comm: kworker/u4:1 Not tainted 5.7.0-syzkaller #0 [ 61.066166][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.076219][ T21] Workqueue: writeback wb_workfn (flush-8:0) [ 61.082191][ T21] Call Trace: [ 61.085484][ T21] dump_stack+0x188/0x20d [ 61.089816][ T21] debug_smp_processor_id.cold+0x88/0x9b [ 61.095445][ T21] ext4_mb_new_blocks+0xa77/0x3b30 [ 61.100547][ T21] ? __kmalloc+0x62f/0x7a0 [ 61.104976][ T21] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.110427][ T21] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.116174][ T21] ext4_ext_map_blocks+0x2044/0x3410 [ 61.121473][ T21] ? ext4_ext_release+0x10/0x10 [ 61.126344][ T21] ? __down_timeout+0x2d0/0x2d0 [ 61.131189][ T21] ? ext4_es_lookup_extent+0x41d/0xd30 [ 61.136639][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 61.142106][ T21] ext4_map_blocks+0x4cb/0x1640 [ 61.146974][ T21] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.152169][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 61.157642][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.163204][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.169190][ T21] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.174663][ T21] ext4_writepages+0x1ab7/0x3400 [ 61.179654][ T21] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.185285][ T21] ? __lock_acquire+0x2224/0x48a0 [ 61.190327][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 61.196315][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 61.202389][ T21] ? __ext4_mark_inode_dirty+0x950/0x950 [ 61.208023][ T21] ? do_writepages+0xfa/0x2a0 [ 61.212703][ T21] do_writepages+0xfa/0x2a0 [ 61.217214][ T21] ? page_writeback_cpu_online+0x10/0x10 [ 61.222846][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 61.228399][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.233937][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.239908][ T21] ? lock_downgrade+0x840/0x840 [ 61.244744][ T21] __writeback_single_inode+0x12a/0x1410 [ 61.250367][ T21] ? _raw_spin_unlock+0x24/0x40 [ 61.255199][ T21] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 61.261158][ T21] writeback_sb_inodes+0x515/0xdd0 [ 61.266277][ T21] ? __writeback_single_inode+0x1410/0x1410 [ 61.272158][ T21] __writeback_inodes_wb+0xc3/0x250 [ 61.277350][ T21] wb_writeback+0x910/0xd90 [ 61.281852][ T21] ? print_usage_bug+0x240/0x240 [ 61.286782][ T21] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 61.293087][ T21] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 61.298957][ T21] ? cpumask_next+0x3c/0x40 [ 61.303436][ T21] ? get_nr_dirty_inodes+0xd6/0x130 [ 61.308609][ T21] wb_workfn+0xadf/0x10d0 [ 61.312921][ T21] ? inode_wait_for_writeback+0x30/0x30 [ 61.318441][ T21] ? debug_smp_processor_id+0x2f/0x185 [ 61.323880][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.329405][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.335541][ T21] process_one_work+0x965/0x16a0 [ 61.340459][ T21] ? lock_release+0x800/0x800 [ 61.345113][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 61.350462][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 61.355379][ T21] worker_thread+0x96/0xe10 [ 61.360135][ T21] ? process_one_work+0x16a0/0x16a0 [ 61.365310][ T21] kthread+0x388/0x470 [ 61.369358][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.375066][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.380775][ T21] ret_from_fork+0x24/0x30 [ 61.656130][ T6780] can: request_module (can-proto-0) failed. [ 62.687539][ T6780] can: request_module (can-proto-0) failed. [ 62.700004][ T6780] can: request_module (can-proto-0) failed.