Warning: Permanently added '10.128.1.56' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 52.322108][ T3499] loop0: detected capacity change from 0 to 2048 [ 52.340845][ T3500] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 52.352482][ T26] audit: type=1800 audit(1684111667.392:2): pid=3499 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor101" name="bus" dev="loop0" ino=18 res=0 errno=0 [ 52.389647][ T3500] ------------[ cut here ]------------ [ 52.395763][ T3500] WARNING: CPU: 1 PID: 3500 at fs/nilfs2/dat.c:193 nilfs_dat_commit_end+0x59c/0x6a0 [ 52.405282][ T3500] Modules linked in: [ 52.409206][ T3500] CPU: 1 PID: 3500 Comm: segctord Not tainted 5.15.111-syzkaller #0 [ 52.417258][ T3500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 52.427387][ T3500] RIP: 0010:nilfs_dat_commit_end+0x59c/0x6a0 [ 52.433394][ T3500] Code: 48 89 ee 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d e9 e8 7c 03 00 e8 33 07 5c fe e8 2e aa dc fd e9 d8 fc ff ff e8 24 07 5c fe <0f> 0b e9 39 fc ff ff e8 18 07 5c fe e8 13 aa dc fd 43 80 7c 35 00 [ 52.453234][ T3500] RSP: 0018:ffffc90002bcf2c8 EFLAGS: 00010293 [ 52.459372][ T3500] RAX: ffffffff8323dcbc RBX: ffff888016e151a0 RCX: ffff888078455940 [ 52.467418][ T3500] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000302 [ 52.475461][ T3500] RBP: 0000000000000003 R08: ffffffff8323d8ee R09: ffffed1028ce539b [ 52.483470][ T3500] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880224daaa0 [ 52.491555][ T3500] R13: 1ffff92000579e7b R14: 0000000000000302 R15: ffff8880784570c8 [ 52.499586][ T3500] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 52.508607][ T3500] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.515272][ T3500] CR2: 0000558a365aad48 CR3: 0000000075cf1000 CR4: 00000000003506e0 [ 52.523281][ T3500] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.531326][ T3500] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.539359][ T3500] Call Trace: [ 52.542636][ T3500] [ 52.545649][ T3500] nilfs_dat_commit_update+0x25/0x40 [ 52.550956][ T3500] nilfs_direct_propagate+0x23c/0x3b0 [ 52.556390][ T3500] ? nilfs_direct_delete+0x300/0x300 [ 52.561695][ T3500] ? up_write+0x133/0x4d0 [ 52.566099][ T3500] ? down_write+0x10e/0x170 [ 52.570637][ T3500] ? nilfs_segctor_add_file_block+0x4c3/0x960 [ 52.576801][ T3500] nilfs_bmap_propagate+0x6d/0x120 [ 52.581957][ T3500] nilfs_collect_file_data+0x49/0xc0 [ 52.587329][ T3500] nilfs_segctor_apply_buffers+0x180/0x330 [ 52.593168][ T3500] ? nilfs_segctor_end_finfo+0x5a0/0x5a0 [ 52.598867][ T3500] nilfs_segctor_scan_file+0x82d/0xad0 [ 52.604393][ T3500] ? trace_nilfs2_collection_stage_transition+0x1b0/0x1b0 [ 52.611523][ T3500] ? rcu_is_watching+0x11/0xa0 [ 52.616417][ T3500] nilfs_segctor_do_construct+0x1e15/0x7190 [ 52.622363][ T3500] ? mark_lock+0x98/0x340 [ 52.626822][ T3500] ? nilfs_transaction_unlock+0x210/0x210 [ 52.632587][ T3500] ? __up_read+0x690/0x690 [ 52.637065][ T3500] ? nilfs_segctor_confirm+0x24c/0x2d0 [ 52.642548][ T3500] ? do_raw_spin_lock+0x14a/0x370 [ 52.647697][ T3500] ? __lock_acquire+0x1ff0/0x1ff0 [ 52.652807][ T3500] ? do_raw_spin_unlock+0x137/0x8b0 [ 52.658082][ T3500] ? _raw_spin_unlock+0x24/0x40 [ 52.662969][ T3500] ? nilfs_segctor_confirm+0x24c/0x2d0 [ 52.668582][ T3500] nilfs_segctor_construct+0x145/0x8c0 [ 52.674188][ T3500] ? trace_nilfs2_transaction_transition+0x98/0x1f0 [ 52.680790][ T3500] nilfs_segctor_thread+0x512/0x1130 [ 52.686188][ T3500] ? nilfs_construction_timeout+0x40/0x40 [ 52.691926][ T3500] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 52.697877][ T3500] ? lockdep_hardirqs_on+0x94/0x130 [ 52.703091][ T3500] ? init_wait_entry+0xd0/0xd0 [ 52.707954][ T3500] kthread+0x3f6/0x4f0 [ 52.712060][ T3500] ? nilfs_construction_timeout+0x40/0x40 [ 52.717871][ T3500] ? kthread_blkcg+0xd0/0xd0 [ 52.722492][ T3500] ret_from_fork+0x1f/0x30 [ 52.727005][ T3500] [ 52.730034][ T3500] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 52.737302][ T3500] CPU: 1 PID: 3500 Comm: segctord Not tainted 5.15.111-syzkaller #0 [ 52.745273][ T3500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 52.755320][ T3500] Call Trace: [ 52.758594][ T3500] [ 52.761661][ T3500] dump_stack_lvl+0x1e3/0x2cb [ 52.766348][ T3500] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 52.771979][ T3500] ? panic+0x84d/0x84d [ 52.776054][ T3500] ? nilfs_dat_commit_end+0x4e0/0x6a0 [ 52.781426][ T3500] ? nilfs_dat_commit_end+0x4e0/0x6a0 [ 52.786793][ T3500] panic+0x318/0x84d [ 52.790699][ T3500] ? __warn+0x16a/0x300 [ 52.794855][ T3500] ? fb_is_primary_device+0xcc/0xcc [ 52.800053][ T3500] ? ret_from_fork+0x1f/0x30 [ 52.804638][ T3500] ? nilfs_dat_commit_end+0x59c/0x6a0 [ 52.810008][ T3500] __warn+0x2b2/0x300 [ 52.813987][ T3500] ? nilfs_dat_commit_end+0x59c/0x6a0 [ 52.819351][ T3500] report_bug+0x1b7/0x2e0 [ 52.823675][ T3500] handle_bug+0x3d/0x70 [ 52.827821][ T3500] exc_invalid_op+0x16/0x40 [ 52.832318][ T3500] asm_exc_invalid_op+0x16/0x20 [ 52.837159][ T3500] RIP: 0010:nilfs_dat_commit_end+0x59c/0x6a0 [ 52.843133][ T3500] Code: 48 89 ee 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d e9 e8 7c 03 00 e8 33 07 5c fe e8 2e aa dc fd e9 d8 fc ff ff e8 24 07 5c fe <0f> 0b e9 39 fc ff ff e8 18 07 5c fe e8 13 aa dc fd 43 80 7c 35 00 [ 52.862730][ T3500] RSP: 0018:ffffc90002bcf2c8 EFLAGS: 00010293 [ 52.868788][ T3500] RAX: ffffffff8323dcbc RBX: ffff888016e151a0 RCX: ffff888078455940 [ 52.876754][ T3500] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000302 [ 52.884722][ T3500] RBP: 0000000000000003 R08: ffffffff8323d8ee R09: ffffed1028ce539b [ 52.892703][ T3500] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880224daaa0 [ 52.900707][ T3500] R13: 1ffff92000579e7b R14: 0000000000000302 R15: ffff8880784570c8 [ 52.908688][ T3500] ? nilfs_dat_commit_end+0x1ce/0x6a0 [ 52.914070][ T3500] ? nilfs_dat_commit_end+0x59c/0x6a0 [ 52.919437][ T3500] ? nilfs_dat_commit_end+0x59c/0x6a0 [ 52.924804][ T3500] nilfs_dat_commit_update+0x25/0x40 [ 52.930084][ T3500] nilfs_direct_propagate+0x23c/0x3b0 [ 52.935451][ T3500] ? nilfs_direct_delete+0x300/0x300 [ 52.940731][ T3500] ? up_write+0x133/0x4d0 [ 52.945068][ T3500] ? down_write+0x10e/0x170 [ 52.949567][ T3500] ? nilfs_segctor_add_file_block+0x4c3/0x960 [ 52.955637][ T3500] nilfs_bmap_propagate+0x6d/0x120 [ 52.960769][ T3500] nilfs_collect_file_data+0x49/0xc0 [ 52.966048][ T3500] nilfs_segctor_apply_buffers+0x180/0x330 [ 52.971851][ T3500] ? nilfs_segctor_end_finfo+0x5a0/0x5a0 [ 52.977478][ T3500] nilfs_segctor_scan_file+0x82d/0xad0 [ 52.982941][ T3500] ? trace_nilfs2_collection_stage_transition+0x1b0/0x1b0 [ 52.990060][ T3500] ? rcu_is_watching+0x11/0xa0 [ 52.994820][ T3500] nilfs_segctor_do_construct+0x1e15/0x7190 [ 53.000740][ T3500] ? mark_lock+0x98/0x340 [ 53.005065][ T3500] ? nilfs_transaction_unlock+0x210/0x210 [ 53.010791][ T3500] ? __up_read+0x690/0x690 [ 53.015202][ T3500] ? nilfs_segctor_confirm+0x24c/0x2d0 [ 53.020669][ T3500] ? do_raw_spin_lock+0x14a/0x370 [ 53.025693][ T3500] ? __lock_acquire+0x1ff0/0x1ff0 [ 53.030828][ T3500] ? do_raw_spin_unlock+0x137/0x8b0 [ 53.036063][ T3500] ? _raw_spin_unlock+0x24/0x40 [ 53.040936][ T3500] ? nilfs_segctor_confirm+0x24c/0x2d0 [ 53.046423][ T3500] nilfs_segctor_construct+0x145/0x8c0 [ 53.051890][ T3500] ? trace_nilfs2_transaction_transition+0x98/0x1f0 [ 53.058491][ T3500] nilfs_segctor_thread+0x512/0x1130 [ 53.063807][ T3500] ? nilfs_construction_timeout+0x40/0x40 [ 53.069550][ T3500] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 53.075440][ T3500] ? lockdep_hardirqs_on+0x94/0x130 [ 53.080635][ T3500] ? init_wait_entry+0xd0/0xd0 [ 53.085402][ T3500] kthread+0x3f6/0x4f0 [ 53.089467][ T3500] ? nilfs_construction_timeout+0x40/0x40 [ 53.095180][ T3500] ? kthread_blkcg+0xd0/0xd0 [ 53.099765][ T3500] ret_from_fork+0x1f/0x30 [ 53.104183][ T3500] [ 53.107439][ T3500] Kernel Offset: disabled [ 53.111850][ T3500] Rebooting in 86400 seconds..