INFO: task syz-executor175:3625 blocked for more than 143 seconds.
Not tainted 6.1.0-rc1-next-20221021-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor175 state:D stack:28968 pid:3625 ppid:3603 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xda/0x1b0 kernel/sched/core.c:6579
rwsem_down_write_slowpath+0x5fc/0x12d0 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write_common kernel/locking/rwsem.c:1302 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x1e4/0x220 kernel/locking/rwsem.c:1563
filemap_invalidate_lock include/linux/fs.h:801 [inline]
blkdev_fallocate+0x1e2/0x410 block/fops.c:641
vfs_fallocate+0x487/0xe00 fs/open.c:323
ksys_fallocate fs/open.c:346 [inline]
__do_sys_fallocate fs/open.c:354 [inline]
__se_sys_fallocate fs/open.c:352 [inline]
__x64_sys_fallocate+0xcf/0x140 fs/open.c:352
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f19a79f1e09
RSP: 002b:00007ffe17d9ca28 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f19a79f1e09
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 00400000000000a2 R11: 0000000000000246 R12: 000000000000ad0a
R13: 00007ffe17d9ca3c R14: 00007ffe17d9ca50 R15: 00007ffe17d9ca40
INFO: task syz-executor175:3632 blocked for more than 143 seconds.
Not tainted 6.1.0-rc1-next-20221021-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor175 state:D stack:28320 pid:3632 ppid:3607 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xda/0x1b0 kernel/sched/core.c:6579
rwsem_down_write_slowpath+0x5fc/0x12d0 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write_common kernel/locking/rwsem.c:1302 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x1e4/0x220 kernel/locking/rwsem.c:1563
filemap_invalidate_lock include/linux/fs.h:801 [inline]
blkdev_fallocate+0x1e2/0x410 block/fops.c:641
vfs_fallocate+0x487/0xe00 fs/open.c:323
ksys_fallocate fs/open.c:346 [inline]
__do_sys_fallocate fs/open.c:354 [inline]
__se_sys_fallocate fs/open.c:352 [inline]
__x64_sys_fallocate+0xcf/0x140 fs/open.c:352
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f19a79f1e09
RSP: 002b:00007ffe17d9ca28 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f19a79f1e09
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 00400000000000a2 R11: 0000000000000246 R12: 000000000000ad10
R13: 00007ffe17d9ca3c R14: 00007ffe17d9ca50 R15: 00007ffe17d9ca40
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc1-next-20221021-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x32f/0x3c0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc71/0xfc0 kernel/hung_task.c:377
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2957 Comm: klogd Not tainted 6.1.0-rc1-next-20221021-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
RIP: 0010:__list_del_entry_valid+0xc/0x110 lib/list_debug.c:43
Code: fd 48 8b 34 24 eb a1 48 89 f7 48 89 34 24 e8 eb 60 c0 fd 48 8b 34 24 eb b4 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 41 55 <41> 54 55 48 89 fd 48 83 c7 08 48 89 fa 48 c1 ea 03 80 3c 02 00 0f
RSP: 0018:ffffc9000c2477d0 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: 0000000000070000 RCX: ffff88805f8b1100
RDX: ffff88805f8b0000 RSI: ffffea00017e2c00 RDI: ffffea00017e2c20
RBP: ffffea00017e2c00 R08: ffff88805f8b1100 R09: dead000000070000
R10: ffff8880177df240 R11: 0000000000000000 R12: ffff88805f8b1100
R13: ffff8880177df240 R14: ffff8881451e7dc0 R15: ffff88805f8b1100
FS: 00007f677fa18800(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555557282c0 CR3: 0000000025b7e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__list_del_entry include/linux/list.h:134 [inline]
list_del include/linux/list.h:148 [inline]
remove_partial mm/slub.c:2069 [inline]
__slab_free+0x2a3/0x350 mm/slub.c:3570
qlink_free mm/kasan/quarantine.c:168 [inline]
qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:187
kasan_quarantine_reduce+0x18e/0x220 mm/kasan/quarantine.c:294
__kasan_slab_alloc+0x62/0x80 mm/kasan/common.c:302
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slab.h:754 [inline]
slab_alloc_node mm/slub.c:3403 [inline]
kmem_cache_alloc_node+0x2fc/0x400 mm/slub.c:3448
__alloc_skb+0x210/0x2f0 net/core/skbuff.c:497
alloc_skb include/linux/skbuff.h:1267 [inline]
alloc_skb_with_frags+0x93/0x6c0 net/core/skbuff.c:6124
sock_alloc_send_pskb+0x7a3/0x930 net/core/sock.c:2719
unix_dgram_sendmsg+0x415/0x1b50 net/unix/af_unix.c:1943
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:734
__sys_sendto+0x236/0x340 net/socket.c:2117
__do_sys_sendto net/socket.c:2129 [inline]
__se_sys_sendto net/socket.c:2125 [inline]
__x64_sys_sendto+0xdd/0x1b0 net/socket.c:2125
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f677fbb40ac
Code: 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 19 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 64 c3 0f 1f 00 55 48 83 ec 20 48 89 54 24 10
RSP: 002b:00007ffd303125b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f677fbb40ac
RDX: 000000000000004d RSI: 0000556a8fcd0e60 RDI: 0000000000000003
RBP: 0000556a8fccc910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000014
R13: 0000000000000001 R14: 00007f677fd2f77d R15: 00007ffd303126c8
INFO: NMI handler (hw_nmi_get_sample_period) took too long to run: 1.426 msecs