program: perf_event_open(&(0x7f0000000280)={0x2, 0x80, 0x4b, 0x8, 0x0, 0x0, 0x0, 0xd, 0x82, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x107b7b, 0x1, @perf_config_ext={0x407fff, 0xae8}, 0x2800, 0x431, 0x9, 0x3, 0x2, 0x0, 0x1, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xfffffffbffffffff, 0xffffffffffffffff, 0x9) syz_mount_image$ocfs2(&(0x7f0000004440), &(0x7f0000000040)='./file1\x00', 0x8c0, &(0x7f0000000080)=ANY=[@ANYBLOB='acl,heartbeat=none,dir_resv_level=00003,coherency=full,coherency=full,localflocks,coherency=full,noacl,\x00'/119], 0x1, 0x4421, 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r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x0, 0x0) mkdirat(r0, &(0x7f0000000180)='./bus\x00', 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x0, 0x0) mkdir(&(0x7f0000000000)='./file0\x00', 0x0) r2 = socket$nl_rdma(0x10, 0x3, 0x14) sendmsg$RDMA_NLDEV_CMD_NEWLINK(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)={0x38, 0x1403, 0xc23, 0x70bd2a, 0x25dfdbfe, "", [{{0x9, 0x2, 'syz1\x00'}, {0x8, 0x41, 'rxe\x00'}, {0x14, 0x33, 'syz_tun\x00'}}]}, 0x38}, 0x1, 0x0, 0x0, 0x48845}, 0x4000) mkdirat(r1, &(0x7f0000000280)='./bus/file0\x00', 0x0) renameat2(r0, &(0x7f0000000240)='./bus/file0\x00', r1, &(0x7f00000001c0)='./file0\x00', 0x0) [ 85.567958][ T4683] Bluetooth: hci0: command tx timeout [ 86.021322][ T5340] loop0: detected capacity change from 0 to 32768 [ 86.057827][ T5340] ======================================================= [ 86.057827][ T5340] WARNING: The mand mount option has been deprecated and [ 86.057827][ T5340] and is ignored by this kernel. Remove the mand [ 86.057827][ T5340] option from the mount to silence this warning. [ 86.057827][ T5340] ======================================================= [ 86.186630][ T5340] JBD2: Ignoring recovery information on journal [ 86.245981][ T5340] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 86.384368][ T78] [ 86.385449][ T78] ====================================================== [ 86.388316][ T78] WARNING: possible circular locking dependency detected [ 86.391655][ T78] syzkaller #0 Not tainted [ 86.394194][ T78] ------------------------------------------------------ [ 86.398027][ T78] kswapd0/78 is trying to acquire lock: [ 86.400506][ T78] ffff8880126009c0 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_evict_inode+0x1507/0x4040 [ 86.405955][ T78] [ 86.405955][ T78] but task is already holding lock: [ 86.409143][ T78] ffff888046415f40 (&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_evict_inode+0xf6c/0x4040 [ 86.414763][ T78] [ 86.414763][ T78] which lock already depends on the new lock. [ 86.414763][ T78] [ 86.419023][ T78] [ 86.419023][ T78] the existing dependency chain (in reverse order) is: [ 86.422908][ T78] [ 86.422908][ T78] -> #3 (&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]){+.+.}-{4:4}: [ 86.427645][ T78] down_write+0x96/0x1f0 [ 86.430060][ T78] ocfs2_evict_inode+0xf6c/0x4040 [ 86.432585][ T78] evict+0x5f4/0xae0 [ 86.434528][ T78] ocfs2_dentry_iput+0x247/0x370 [ 86.436829][ T78] __dentry_kill+0x209/0x660 [ 86.439045][ T78] shrink_kill+0xa9/0x2c0 [ 86.441348][ T78] shrink_dentry_list+0x2e0/0x5e0 [ 86.443854][ T78] prune_dcache_sb+0x10e/0x180 [ 86.446172][ T78] super_cache_scan+0x369/0x4b0 [ 86.448484][ T78] do_shrink_slab+0x6df/0x10d0 [ 86.450807][ T78] shrink_slab+0x7ef/0x10d0 [ 86.453271][ T78] shrink_one+0x2d9/0x720 [ 86.455520][ T78] shrink_node+0x2f7d/0x35b0 [ 86.458272][ T78] kswapd+0x145a/0x2820 [ 86.460403][ T78] kthread+0x711/0x8a0 [ 86.462430][ T78] ret_from_fork+0x599/0xb30 [ 86.464631][ T78] ret_from_fork_asm+0x1a/0x30 [ 86.466905][ T78] [ 86.466905][ T78] -> #2 (&osb->nfs_sync_rwlock){.+.+}-{4:4}: [ 86.470201][ T78] down_read+0x47/0x2e0 [ 86.472234][ T78] ocfs2_nfs_sync_lock+0x106/0x250 [ 86.474590][ T78] ocfs2_evict_inode+0x38d/0x4040 [ 86.477098][ T78] evict+0x5f4/0xae0 [ 86.479157][ T78] ocfs2_dentry_iput+0x247/0x370 [ 86.481430][ T78] __dentry_kill+0x209/0x660 [ 86.483471][ T78] shrink_kill+0xa9/0x2c0 [ 86.485393][ T78] shrink_dentry_list+0x2e0/0x5e0 [ 86.487711][ T78] prune_dcache_sb+0x10e/0x180 [ 86.490051][ T78] super_cache_scan+0x369/0x4b0 [ 86.492471][ T78] do_shrink_slab+0x6df/0x10d0 [ 86.494664][ T78] shrink_slab+0x7ef/0x10d0 [ 86.496857][ T78] shrink_one+0x2d9/0x720 [ 86.498931][ T78] shrink_node+0x2f7d/0x35b0 [ 86.501057][ T78] kswapd+0x145a/0x2820 [ 86.503048][ T78] kthread+0x711/0x8a0 [ 86.505086][ T78] ret_from_fork+0x599/0xb30 [ 86.507359][ T78] ret_from_fork_asm+0x1a/0x30 [ 86.509718][ T78] [ 86.509718][ T78] -> #1 (fs_reclaim){+.+.}-{0:0}: [ 86.513003][ T78] fs_reclaim_acquire+0x72/0x100 [ 86.515389][ T78] __kmalloc_cache_noprof+0x40/0x700 [ 86.517848][ T78] ocfs2_reserve_new_metadata_blocks+0x113/0x940 [ 86.520838][ T78] ocfs2_mknod+0xde6/0x2030 [ 86.522995][ T78] ocfs2_mkdir+0x181/0x420 [ 86.525166][ T78] vfs_mkdir+0x512/0x5b0 [ 86.527353][ T78] do_mkdirat+0x276/0x4b0 [ 86.529523][ T78] __x64_sys_mkdirat+0x87/0xa0 [ 86.531882][ T78] do_syscall_64+0xfa/0xf80 [ 86.534243][ T78] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.537067][ T78] [ 86.537067][ T78] -> #0 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}: [ 86.541655][ T78] __lock_acquire+0x15a6/0x2cf0 [ 86.543963][ T78] lock_acquire+0x117/0x340 [ 86.546096][ T78] down_write+0x96/0x1f0 [ 86.548140][ T78] ocfs2_evict_inode+0x1507/0x4040 [ 86.550547][ T78] evict+0x5f4/0xae0 [ 86.552511][ T78] ocfs2_dentry_iput+0x247/0x370 [ 86.554890][ T78] __dentry_kill+0x209/0x660 [ 86.557124][ T78] shrink_kill+0xa9/0x2c0 [ 86.559134][ T78] shrink_dentry_list+0x2e0/0x5e0 [ 86.561680][ T78] prune_dcache_sb+0x10e/0x180 [ 86.564019][ T78] super_cache_scan+0x369/0x4b0 [ 86.566444][ T78] do_shrink_slab+0x6df/0x10d0 [ 86.568835][ T78] shrink_slab+0x7ef/0x10d0 [ 86.571247][ T78] shrink_one+0x2d9/0x720 [ 86.573329][ T78] shrink_node+0x2f7d/0x35b0 [ 86.575560][ T78] kswapd+0x145a/0x2820 [ 86.577660][ T78] kthread+0x711/0x8a0 [ 86.579703][ T78] ret_from_fork+0x599/0xb30 [ 86.582019][ T78] ret_from_fork_asm+0x1a/0x30 [ 86.584640][ T78] [ 86.584640][ T78] other info that might help us debug this: [ 86.584640][ T78] [ 86.589147][ T78] Chain exists of: [ 86.589147][ T78] &ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE] --> &osb->nfs_sync_rwlock --> &ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE] [ 86.589147][ T78] [ 86.597839][ T78] Possible unsafe locking scenario: [ 86.597839][ T78] [ 86.601265][ T78] CPU0 CPU1 [ 86.603602][ T78] ---- ---- [ 86.606046][ T78] lock(&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]); [ 86.609218][ T78] lock(&osb->nfs_sync_rwlock); [ 86.612514][ T78] lock(&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]); [ 86.616831][ T78] lock(&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]); [ 86.620035][ T78] [ 86.620035][ T78] *** DEADLOCK *** [ 86.620035][ T78] [ 86.623226][ T78] 4 locks held by kswapd0/78: [ 86.625117][ T78] #0: ffffffff8e251820 (fs_reclaim){+.+.}-{0:0}, at: kswapd+0x92a/0x2820 [ 86.628474][ T78] #1: ffff8880441560e0 (&type->s_umount_key#51){.+.+}-{4:4}, at: super_cache_scan+0x91/0x4b0 [ 86.632578][ T78] #2: ffff888038808bd0 (&osb->nfs_sync_rwlock){.+.+}-{4:4}, at: ocfs2_nfs_sync_lock+0x106/0x250 [ 86.637030][ T78] #3: ffff888046415f40 (&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_evict_inode+0xf6c/0x4040 [ 86.642523][ T78] [ 86.642523][ T78] stack backtrace: [ 86.645089][ T78] CPU: 0 UID: 0 PID: 78 Comm: kswapd0 Not tainted syzkaller #0 PREEMPT(full) [ 86.645103][ T78] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 86.645111][ T78] Call Trace: [ 86.645118][ T78] [ 86.645125][ T78] dump_stack_lvl+0x189/0x250 [ 86.645144][ T78] ? __pfx_dump_stack_lvl+0x10/0x10 [ 86.645158][ T78] ? __pfx__printk+0x10/0x10 [ 86.645173][ T78] ? print_lock_name+0xde/0x100 [ 86.645190][ T78] print_circular_bug+0x2e2/0x300 [ 86.645206][ T78] check_noncircular+0x12e/0x150 [ 86.645220][ T78] __lock_acquire+0x15a6/0x2cf0 [ 86.645233][ T78] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 86.645249][ T78] ? ocfs2_evict_inode+0x1507/0x4040 [ 86.645261][ T78] lock_acquire+0x117/0x340 [ 86.645271][ T78] ? ocfs2_evict_inode+0x1507/0x4040 [ 86.645284][ T78] ? do_raw_spin_unlock+0x4d/0x240 [ 86.645298][ T78] down_write+0x96/0x1f0 [ 86.645310][ T78] ? ocfs2_evict_inode+0x1507/0x4040 [ 86.645327][ T78] ? __pfx_down_write+0x10/0x10 [ 86.645340][ T78] ocfs2_evict_inode+0x1507/0x4040 [ 86.645354][ T78] ? __pfx_ocfs2_evict_inode+0x10/0x10 [ 86.645368][ T78] ? unwind_next_frame+0xa5/0x23d0 [ 86.645380][ T78] ? rcu_is_watching+0x15/0xb0 [ 86.645392][ T78] ? __kasan_check_byte+0x12/0x40 [ 86.645400][ T78] ? unwind_next_frame+0xa5/0x23d0 [ 86.645411][ T78] ? unwind_next_frame+0xa5/0x23d0 [ 86.645422][ T78] ? rcu_is_watching+0x15/0xb0 [ 86.645433][ T78] ? __kasan_check_byte+0x12/0x40 [ 86.645443][ T78] ? unwind_next_frame+0xa5/0x23d0 [ 86.645454][ T78] ? rcu_is_watching+0x15/0xb0 [ 86.645466][ T78] ? unwind_next_frame+0xa5/0x23d0 [ 86.645477][ T78] ? lock_release+0x4b/0x3b0 [ 86.645486][ T78] ? unwind_next_frame+0x1ab6/0x23d0 [ 86.645497][ T78] ? deref_stack_reg+0x19f/0x230 [ 86.645510][ T78] ? unwind_next_frame+0xa5/0x23d0 [ 86.645521][ T78] ? unwind_next_frame+0x1ab6/0x23d0 [ 86.645533][ T78] ? unwind_next_frame+0xa5/0x23d0 [ 86.645544][ T78] ? ret_from_fork_asm+0x1a/0x30 [ 86.645558][ T78] ? ret_from_fork_asm+0x1a/0x30 [ 86.645572][ T78] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 86.645589][ T78] ? arch_stack_walk+0x11c/0x150 [ 86.645602][ T78] ? ret_from_fork_asm+0x1a/0x30 [ 86.645615][ T78] ? stack_trace_save+0x9c/0xe0 [ 86.645629][ T78] ? __bfs+0x154/0x290 [ 86.645639][ T78] ? __pfx_hlock_conflict+0x10/0x10 [ 86.645652][ T78] ? check_path+0x21/0x40 [ 86.645663][ T78] ? __bfs+0x154/0x290 [ 86.645673][ T78] ? __pfx_hlock_conflict+0x10/0x10 [ 86.645685][ T78] ? check_path+0x21/0x40 [ 86.645695][ T78] ? check_noncircular+0xda/0x150 [ 86.645703][ T78] ? lockdep_unlock+0x89/0x120 [ 86.645708][ T78] ? __lock_acquire+0x146f/0x2cf0 [ 86.645716][ T78] ? __lock_acquire+0x6b6/0x2cf0 [ 86.645729][ T78] ? inode_wait_for_writeback+0x14d/0x370 [ 86.645745][ T78] ? __pfx_inode_wait_for_writeback+0x10/0x10 [ 86.645760][ T78] ? do_raw_spin_unlock+0x4d/0x240 [ 86.645773][ T78] ? __pfx_ocfs2_evict_inode+0x10/0x10 [ 86.645784][ T78] evict+0x5f4/0xae0 [ 86.645801][ T78] ? __pfx_evict+0x10/0x10 [ 86.645814][ T78] ? _raw_spin_unlock+0x28/0x50 [ 86.645828][ T78] ? iput+0xcc6/0x1030 [ 86.645841][ T78] ocfs2_dentry_iput+0x247/0x370 [ 86.645869][ T78] ? __pfx_ocfs2_dentry_iput+0x10/0x10 [ 86.645882][ T78] ? do_raw_spin_unlock+0x4d/0x240 [ 86.645895][ T78] ? _raw_spin_unlock+0x28/0x50 [ 86.645908][ T78] ? dentry_unlink_inode+0x30e/0x3f0 [ 86.645923][ T78] __dentry_kill+0x209/0x660 [ 86.645938][ T78] ? shrink_kill+0x8d/0x2c0 [ 86.645950][ T78] shrink_kill+0xa9/0x2c0 [ 86.645961][ T78] shrink_dentry_list+0x2e0/0x5e0 [ 86.645974][ T78] prune_dcache_sb+0x10e/0x180 [ 86.645985][ T78] ? __pfx_prune_dcache_sb+0x10/0x10 [ 86.645997][ T78] ? list_lru_count_one+0x27/0x2c0 [ 86.646007][ T78] ? list_lru_count_one+0x264/0x2c0 [ 86.646017][ T78] super_cache_scan+0x369/0x4b0 [ 86.646034][ T78] do_shrink_slab+0x6df/0x10d0 [ 86.646049][ T78] shrink_slab+0x7ef/0x10d0 [ 86.646059][ T78] ? shrink_slab+0x1e8/0x10d0 [ 86.646069][ T78] ? __pfx_shrink_slab+0x10/0x10 [ 86.646083][ T78] shrink_one+0x2d9/0x720 [ 86.646094][ T78] ? shrink_node+0x2d3f/0x35b0 [ 86.646109][ T78] shrink_node+0x2f7d/0x35b0 [ 86.646127][ T78] ? shrink_node+0x2d3f/0x35b0 [ 86.646142][ T78] ? __lock_acquire+0x6b6/0x2cf0 [ 86.646154][ T78] ? percpu_ref_put+0x19/0x180 [ 86.646166][ T78] ? __pfx_shrink_node+0x10/0x10 [ 86.646180][ T78] ? percpu_ref_put+0x19/0x180 [ 86.646192][ T78] ? mem_cgroup_iter+0x420/0x460 [ 86.646204][ T78] ? mem_cgroup_iter+0x3b/0x460 [ 86.646216][ T78] kswapd+0x145a/0x2820 [ 86.646231][ T78] ? kswapd+0x92a/0x2820 [ 86.646245][ T78] ? __pfx_kswapd+0x10/0x10 [ 86.646258][ T78] ? do_raw_spin_lock+0x121/0x290 [ 86.646271][ T78] ? raw_spin_rq_lock_nested+0x2a/0x140 [ 86.646283][ T78] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 86.646301][ T78] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 86.646321][ T78] ? _raw_spin_lock_bh+0x30/0x50 [ 86.646335][ T78] ? __pfx_autoremove_wake_function+0x10/0x10 [ 86.646349][ T78] ? __pfx_set_cpus_allowed_ptr+0x10/0x10 [ 86.646362][ T78] ? __kthread_parkme+0x7b/0x200 [ 86.646374][ T78] ? __kthread_parkme+0x1a1/0x200 [ 86.646386][ T78] kthread+0x711/0x8a0 [ 86.646401][ T78] ? __pfx_kswapd+0x10/0x10 [ 86.646411][ T78] ? __pfx_kthread+0x10/0x10 [ 86.646423][ T78] ? _raw_spin_unlock_irq+0x23/0x50 [ 86.646432][ T78] ? lockdep_hardirqs_on+0x98/0x140 [ 86.646439][ T78] ? __pfx_kthread+0x10/0x10 [ 86.646447][ T78] ret_from_fork+0x599/0xb30 [ 86.646455][ T78] ? __pfx_ret_from_fork+0x10/0x10 [ 86.646462][ T78] ? __pfx_kthread+0x10/0x10 [ 86.646471][ T78] ret_from_fork_asm+0x1a/0x30 [ 86.646483][ T78] [ 86.937642][ T5340] infiniband syz1: set active [ 86.939766][ T5340] infiniband syz1: added syz_tun [ 86.950146][ T5340] workqueue: Failed to create a rescuer kthread for wq "ib_mad1": -EINTR [ 86.952582][ T5340] infiniband syz1: Couldn't open port 1 [ 86.988198][ T5340] RDS/IB: syz1: added [ 86.990086][ T5340] smc: adding ib device syz1 with port count 1 [ 86.993030][ T5340] smc: ib device syz1 port 1 has no pnetid