INFO: task syz-executor.3:10957 blocked for more than 143 seconds.
Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28152 pid:10957 ppid: 5619 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5183 [inline]
__schedule+0x91f/0xdf0 kernel/sched/core.c:6495
schedule+0xcb/0x190 kernel/sched/core.c:6571
rwsem_down_write_slowpath+0xf1c/0x1350 kernel/locking/rwsem.c:1182
__down_write_common kernel/locking/rwsem.c:1297 [inline]
__down_write kernel/locking/rwsem.c:1306 [inline]
down_write_nested+0x16c/0x180 kernel/locking/rwsem.c:1663
inode_lock_nested include/linux/fs.h:791 [inline]
do_rmdir+0x257/0x610 fs/namei.c:4146
__do_sys_rmdir fs/namei.c:4178 [inline]
__se_sys_rmdir fs/namei.c:4176 [inline]
__x64_sys_rmdir+0x45/0x50 fs/namei.c:4176
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcb6fc8a5a9
RSP: 002b:00007fcb70e49168 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 00007fcb6fdac2c0 RCX: 00007fcb6fc8a5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fcb6fce5580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffbad69ddf R14: 00007fcb70e49300 R15: 0000000000022000
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
nmi_cpu_backtrace+0x425/0x450 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x169/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xcd5/0xd20 kernel/hung_task.c:369
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 10956 Comm: syz-executor.3 Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x60 kernel/kcov.c:200
Code: fb e8 17 00 00 00 48 8b 3d f8 30 86 0c 48 89 de 5b e9 a7 7e 52 00 cc cc cc cc cc cc cc 48 8b 04 24 65 48 8b 0c 25 00 6f 02 00 <65> 8b 15 04 9f 7b 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74
RSP: 0018:ffffc90015f46f80 EFLAGS: 00000293
RAX: ffffffff84683633 RBX: 0000000000000000 RCX: ffff888018f01d80
RDX: ffff888018f01d80 RSI: 0000000000000000 RDI: 0000000000000002
RBP: dffffc0000000000 R08: ffffffff8468358f R09: fffffbfff1c19fd6
R10: fffffbfff1c19fd6 R11: 1ffffffff1c19fd5 R12: 1ffff92002be8e10
R13: 000000000000002c R14: ffffc90015f47080 R15: ffffea00026a6b80
FS: 00007fcb70e6a700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcb70ecd9e0 CR3: 000000006fb13000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
xas_descend+0x1f3/0x400 lib/xarray.c:207
xas_load+0xc7/0x150 lib/xarray.c:242
mapping_get_entry mm/filemap.c:1858 [inline]
__filemap_get_folio+0x1f6/0x1250 mm/filemap.c:1920
pagecache_get_page+0x2a/0x240 mm/folio-compat.c:104
find_get_page_flags include/linux/pagemap.h:569 [inline]
__find_get_block_slow fs/buffer.c:202 [inline]
__find_get_block+0x3e3/0x1110 fs/buffer.c:1307
__getblk_gfp+0x2d/0x290 fs/buffer.c:1329
__bread_gfp+0x28/0x320 fs/buffer.c:1378
sb_bread include/linux/buffer_head.h:339 [inline]
get_branch fs/minix/itree_common.c:46 [inline]
get_block+0x312/0x1660 fs/minix/itree_common.c:166
block_read_full_folio+0x3b3/0xfa0 fs/buffer.c:2286
filemap_read_folio+0x187/0x7d0 mm/filemap.c:2399
do_read_cache_folio+0x2d3/0x790 mm/filemap.c:3526
do_read_cache_page mm/filemap.c:3568 [inline]
read_cache_page+0x57/0x250 mm/filemap.c:3577
read_mapping_page include/linux/pagemap.h:756 [inline]
dir_get_page fs/minix/dir.c:70 [inline]
minix_find_entry+0x1b4/0x590 fs/minix/dir.c:170
minix_inode_by_name+0x7b/0x220 fs/minix/dir.c:454
minix_lookup+0xbf/0x150 fs/minix/namei.c:30
__lookup_slow+0x266/0x3a0 fs/namei.c:1685
lookup_slow+0x53/0x70 fs/namei.c:1702
walk_component+0x2e1/0x410 fs/namei.c:1993
lookup_last fs/namei.c:2450 [inline]
path_lookupat+0x17d/0x450 fs/namei.c:2474
filename_lookup+0x274/0x650 fs/namei.c:2503
user_path_at_empty+0x40/0x1a0 fs/namei.c:2876
user_path_at include/linux/namei.h:57 [inline]
do_mount fs/namespace.c:3380 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x296/0x3c0 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcb6fc8a5a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fcb70e6a168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fcb6fdac1f0 RCX: 00007fcb6fc8a5a9
RDX: 0000000020002100 RSI: 00000000200042c0 RDI: 0000000000000000
RBP: 00007fcb6fce5580 R08: 0000000020002140 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffbad69ddf R14: 00007fcb70e6a300 R15: 0000000000022000