loop1: detected capacity change from 0 to 2048
EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none.
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 12888 Comm: syz.1.2872 Not tainted 6.1.118-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1b88/0x7680 kernel/locking/lockdep.c:5049
 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb4 kernel/locking/spinlock.c:162
 debug_object_activate+0x80/0x4b4 lib/debugobjects.c:698
 debug_timer_activate kernel/time/timer.c:782 [inline]
 __mod_timer+0x830/0xd30 kernel/time/timer.c:1103
 mod_timer+0x2c/0x3c kernel/time/timer.c:1166
 blk_add_timer+0x234/0x2ec block/blk-timeout.c:164
 blk_mq_start_request+0x208/0x728 block/blk-mq.c:1262
 loop_queue_rq+0x88/0xae0 drivers/block/loop.c:1842
 __blk_mq_issue_directly block/blk-mq.c:2625 [inline]
 __blk_mq_try_issue_directly+0x42c/0x684 block/blk-mq.c:2678
 blk_mq_request_issue_directly block/blk-mq.c:2712 [inline]
 blk_mq_plug_issue_direct+0x1fc/0x56c block/blk-mq.c:2732
 blk_mq_flush_plug_list+0x53c/0xa1c block/blk-mq.c:2832
 __blk_flush_plug+0x388/0x408 block/blk-core.c:1163
 blk_finish_plug+0x68/0x90 block/blk-core.c:1187
 read_pages+0x500/0x6a0 mm/readahead.c:184
 page_cache_ra_unbounded+0x46c/0x58c mm/readahead.c:270
 do_page_cache_ra mm/readahead.c:300 [inline]
 page_cache_ra_order+0x850/0xa74 mm/readahead.c:564
 ondemand_readahead+0x5f0/0xafc mm/readahead.c:686
 page_cache_sync_ra+0x350/0x3d0 mm/readahead.c:713
 page_cache_sync_readahead include/linux/pagemap.h:1248 [inline]
 filemap_get_pages mm/filemap.c:2664 [inline]
 filemap_read+0x594/0x2260 mm/filemap.c:2758
 generic_file_read_iter+0xa0/0x450 mm/filemap.c:2913
 ext4_file_read_iter+0x364/0x4d4
 call_read_iter include/linux/fs.h:2259 [inline]
 generic_file_splice_read+0x1e0/0x508 fs/splice.c:308
 do_splice_to fs/splice.c:803 [inline]
 splice_direct_to_actor+0x30c/0x9b4 fs/splice.c:875
 do_splice_direct+0x20c/0x348 fs/splice.c:1002
 do_sendfile+0x4c0/0xcb0 fs/read_write.c:1255
 __do_sys_sendfile64 fs/read_write.c:1323 [inline]
 __se_sys_sendfile64 fs/read_write.c:1309 [inline]
 __arm64_sys_sendfile64+0x160/0x3b4 fs/read_write.c:1309
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
EXT4-fs error (device loop1): ext4_mb_generate_buddy:1102: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters
EXT4-fs (loop1): Delayed block allocation failed for inode 16 at logical offset 16 with max blocks 5 with error 28
EXT4-fs (loop1): This should not happen!! Data will be lost

EXT4-fs (loop1): Total free blocks count 0
EXT4-fs (loop1): Free/Dirty block details
EXT4-fs (loop1): free_blocks=2415919104
EXT4-fs (loop1): dirty_blocks=16
EXT4-fs (loop1): Block reservation details
EXT4-fs (loop1): i_reserved_data_blocks=1