Warning: Permanently added '10.128.0.216' (ED25519) to the list of known hosts. executing program [ 45.932712][ T4015] loop0: detected capacity change from 0 to 32768 [ 46.053886][ T4015] JBD2: Ignoring recovery information on journal [ 46.080779][ T4015] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 46.087460][ T4015] (syz-executor308,4015,1):ocfs2_read_blocks:240 ERROR: status = -12 [ 46.089574][ T4015] [ 46.090125][ T4015] ===================================== [ 46.091451][ T4015] WARNING: bad unlock balance detected! [ 46.092778][ T4015] 5.15.167-syzkaller #0 Not tainted [ 46.094031][ T4015] ------------------------------------- [ 46.095412][ T4015] syz-executor308/4015 is trying to release lock (&oi->ip_io_mutex) at: [ 46.097497][ T4015] [] ocfs2_inode_cache_io_unlock+0x20/0x30 [ 46.099324][ T4015] but there are no more locks to release! [ 46.100673][ T4015] [ 46.100673][ T4015] other info that might help us debug this: [ 46.102680][ T4015] 8 locks held by syz-executor308/4015: [ 46.103932][ T4015] #0: ffff0000cbfca460 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c [ 46.106259][ T4015] #1: ffff0000e19289c8 (&type->i_mutex_dir_key#6/1){+.+.}-{3:3}, at: filename_create+0x204/0x468 [ 46.108930][ T4015] #2: ffff0000e19309c8 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x164/0x416c [ 46.112352][ T4015] #3: ffff0000e192ed88 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x164/0x416c [ 46.115775][ T4015] #4: ffff0000e1932648 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{3:3}, at: ocfs2_reserve_local_alloc_bits+0xfc/0x2474 [ 46.119291][ T4015] #5: ffff0000cbfca650 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_mknod+0xe68/0x24f8 [ 46.121477][ T4015] #6: ffff0000da2988e8 (&journal->j_trans_barrier){.+.+}-{3:3}, at: ocfs2_start_trans+0x45c/0x804 [ 46.124168][ T4015] #7: ffff0000cbfc8990 (jbd2_handle){.+.+}-{0:0}, at: start_this_handle+0xf98/0x12a4 [ 46.126536][ T4015] [ 46.126536][ T4015] stack backtrace: [ 46.127972][ T4015] CPU: 1 PID: 4015 Comm: syz-executor308 Not tainted 5.15.167-syzkaller #0 [ 46.130111][ T4015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 46.132613][ T4015] Call trace: [ 46.133437][ T4015] dump_backtrace+0x0/0x530 [ 46.134555][ T4015] show_stack+0x2c/0x3c [ 46.135627][ T4015] dump_stack_lvl+0x108/0x170 [ 46.136728][ T4015] dump_stack+0x1c/0x58 [ 46.137734][ T4015] print_unlock_imbalance_bug+0x250/0x2a4 [ 46.139141][ T4015] lock_release+0x4b8/0xa1c [ 46.140263][ T4015] __mutex_unlock_slowpath+0xe0/0x6d4 [ 46.141611][ T4015] mutex_unlock+0x8c/0xe0 [ 46.142724][ T4015] ocfs2_inode_cache_io_unlock+0x20/0x30 [ 46.144093][ T4015] ocfs2_metadata_cache_io_unlock+0x6c/0x90 [ 46.145578][ T4015] ocfs2_read_blocks+0x1114/0x1628 [ 46.146907][ T4015] ocfs2_search_chain+0x274/0x22f0 [ 46.148168][ T4015] ocfs2_claim_suballoc_bits+0xd38/0x1d84 [ 46.149560][ T4015] ocfs2_claim_new_inode+0x2cc/0x7a0 [ 46.150889][ T4015] ocfs2_mknod_locked+0x134/0x2e4 [ 46.152129][ T4015] ocfs2_mknod+0x10b0/0x24f8 [ 46.153271][ T4015] vfs_mknod+0x3c8/0x448 [ 46.154340][ T4015] do_mknodat+0x3c8/0x694 [ 46.155405][ T4015] __arm64_sys_mknodat+0xb0/0xcc [ 46.156659][ T4015] invoke_syscall+0x98/0x2b8 [ 46.157796][ T4015] el0_svc_common+0x138/0x258 [ 46.158936][ T4015] do_el0_svc+0x58/0x14c [ 46.159985][ T4015] el0_svc+0x7c/0x1f0 [ 46.160969][ T4015] el0t_64_sync_handler+0x84/0xe4 [ 46.162211][ T4015] el0t_64_sync+0x1a0/0x1a4 [ 46.163507][ T4015] (syz-executor308,4015,1):ocfs2_search_chain:1761 ERROR: status = -12 [ 46.165635][ T4015] (syz-executor308,4015,1):ocfs2_search_chain:1871 ERROR: status = -12 [ 46.167586][ T4015] (syz-executor308,4015,1):ocfs2_claim_suballoc_bits:1940 ERROR: status = -12 [ 46.169685][ T4015] (syz-executor308,4015,1):ocfs2_claim_suballoc_bits:1983 ERROR: status = -12 [ 46.171673][ T4015] (syz-executor308,4015,1):ocfs2_claim_new_inode:2216 ERROR: status = -12 [ 46.173682][ T4015] (syz-executor308,4015,1):ocfs2_claim_new_inode:2231 ERROR: status = -12 [ 46.175782][ T4015] (syz-executor308,4015,1):ocfs2_mknod_locked:637 ERROR: status = -12 [ 46.177706][ T4015] (syz-executor308,4015,1):ocfs2_mknod:383 ERROR: status = -12 [ 46.179593][ T4015] (syz-executor308,4015,1):ocfs2_mknod:500 ERROR: status = -12