BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 1 PID: 549 Comm: kworker/u4:3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Workqueue: writeback wb_workfn (flush-8:0) Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 add_chain_cache kernel/locking/lockdep.c:2259 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:2371 [inline] validate_chain kernel/locking/lockdep.c:2391 [inline] __lock_acquire.cold+0x420/0x57e kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 seqcount_lockdep_reader_access include/linux/seqlock.h:81 [inline] read_seqcount_begin include/linux/seqlock.h:164 [inline] read_seqbegin include/linux/seqlock.h:440 [inline] zone_span_seqbegin include/linux/memory_hotplug.h:65 [inline] page_outside_zone_boundaries mm/page_alloc.c:491 [inline] bad_range+0xc0/0x3c0 mm/page_alloc.c:520 __free_one_page mm/page_alloc.c:820 [inline] free_one_page+0x12b/0x10b0 mm/page_alloc.c:1201 __free_pages_ok+0x41a/0xd30 mm/page_alloc.c:1285 slab_destroy mm/slab.c:1713 [inline] slabs_destroy+0x90/0xd0 mm/slab.c:1729 cache_flusharray mm/slab.c:3490 [inline] ___cache_free+0x295/0x3a0 mm/slab.c:3532 qlink_free mm/kasan/quarantine.c:147 [inline] qlist_free_all+0x79/0x140 mm/kasan/quarantine.c:166 quarantine_reduce+0x1a9/0x230 mm/kasan/quarantine.c:259 kasan_kmalloc+0xa2/0x160 mm/kasan/kasan.c:538 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc mm/slab.c:3397 [inline] kmem_cache_alloc+0x110/0x370 mm/slab.c:3557 kmem_cache_zalloc include/linux/slab.h:699 [inline] ext4_init_io_end+0x23/0x110 fs/ext4/page-io.c:253 ext4_writepages+0x10f2/0x37f0 fs/ext4/inode.c:2830 do_writepages+0xe5/0x290 mm/page-writeback.c:2344 __writeback_single_inode+0x10c/0x11d0 fs/fs-writeback.c:1385 writeback_sb_inodes+0x537/0xef0 fs/fs-writeback.c:1647 wb_writeback+0x28d/0xcc0 fs/fs-writeback.c:1820 wb_do_writeback fs/fs-writeback.c:1965 [inline] wb_workfn+0x29b/0x1250 fs/fs-writeback.c:2006 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 IPVS: ftp: loaded support on port[0] = 21 kauditd_printk_skb: 6 callbacks suppressed audit: type=1804 audit(1678162198.299:4535): pid=31901 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir3944142662/syzkaller.l3hsGU/1461/bus" dev="sda1" ino=14543 res=1 audit: type=1800 audit(1678162198.299:4536): pid=31901 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14543 res=0 audit: type=1804 audit(1678162198.699:4537): pid=31909 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir850353909/syzkaller.9iZnV4/2062/bus" dev="sda1" ino=13991 res=1 audit: type=1800 audit(1678162198.699:4538): pid=31909 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="bus" dev="sda1" ino=13991 res=0 audit: type=1804 audit(1678162199.109:4539): pid=31932 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir3944142662/syzkaller.l3hsGU/1462/bus" dev="sda1" ino=14097 res=1 audit: type=1800 audit(1678162199.109:4540): pid=31932 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14097 res=0 audit: type=1804 audit(1678162199.129:4541): pid=31932 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir3944142662/syzkaller.l3hsGU/1462/bus" dev="sda1" ino=14097 res=1 audit: type=1800 audit(1678162199.129:4542): pid=31932 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14097 res=0 audit: type=1804 audit(1678162199.139:4543): pid=31933 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir850353909/syzkaller.9iZnV4/2063/bus" dev="sda1" ino=14559 res=1 audit: type=1800 audit(1678162199.139:4544): pid=31933 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="bus" dev="sda1" ino=14559 res=0 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal REISERFS (device loop3): using ordered data mode reiserfs: using flush barriers REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop3): checking transaction log (loop3) REISERFS (device loop3): Using r5 hash to sort names reiserfs: enabling write barrier flush mode REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal REISERFS (device loop3): using ordered data mode reiserfs: using flush barriers REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop3): checking transaction log (loop3) REISERFS (device loop3): Using r5 hash to sort names reiserfs: enabling write barrier flush mode REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. Bluetooth: hci5: command 0x0405 tx timeout REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal REISERFS (device loop3): using ordered data mode reiserfs: using flush barriers REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop3): checking transaction log (loop3) REISERFS (device loop3): Using r5 hash to sort names reiserfs: enabling write barrier flush mode REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal REISERFS (device loop3): using ordered data mode reiserfs: using flush barriers REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop3): checking transaction log (loop3) REISERFS (device loop3): Using r5 hash to sort names reiserfs: enabling write barrier flush mode REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. REISERFS warning (device loop3): super-6502 reiserfs_getopt: unknown mount option "ÿî§<< G4š¶mRŸ±â½ÆuÆÌëê0º‰wÆ2ÝËàíù†¶Žæ" kauditd_printk_skb: 19 callbacks suppressed audit: type=1804 audit(1678162205.779:4564): pid=32587 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir3944142662/syzkaller.l3hsGU/1479/bus" dev="sda1" ino=13895 res=1 audit: type=1800 audit(1678162205.779:4565): pid=32587 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=13895 res=0 audit: type=1804 audit(1678162205.889:4566): pid=32595 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir3516851761/syzkaller.5iMOBV/2038/bus" dev="sda1" ino=14670 res=1 audit: type=1800 audit(1678162205.889:4567): pid=32595 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="sda1" ino=14670 res=0 REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal REISERFS (device loop3): using ordered data mode reiserfs: using flush barriers REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop3): checking transaction log (loop3) REISERFS (device loop3): Using r5 hash to sort names audit: type=1804 audit(1678162206.219:4568): pid=32636 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir3944142662/syzkaller.l3hsGU/1480/bus" dev="sda1" ino=14675 res=1 reiserfs: enabling write barrier flush mode REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. audit: type=1800 audit(1678162206.249:4569): pid=32636 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14675 res=0 REISERFS warning (device loop3): super-6502 reiserfs_getopt: unknown mount option "ÿî§<< G4š¶mRŸ±â½ÆuÆÌëê0º‰wÆ2ÝËàíù†¶Žæ" audit: type=1804 audit(1678162206.629:4570): pid=32664 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir3944142662/syzkaller.l3hsGU/1481/bus" dev="sda1" ino=14677 res=1 audit: type=1800 audit(1678162206.629:4571): pid=32664 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14677 res=0 audit: type=1804 audit(1678162206.629:4572): pid=32667 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir3516851761/syzkaller.5iMOBV/2039/bus" dev="sda1" ino=14672 res=1 audit: type=1800 audit(1678162206.629:4573): pid=32667 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="sda1" ino=14672 res=0