[syzbot] [pm?] WARNING in complete_all (3)

[syzbot] [pm?] WARNING in complete_all (3)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit:    f2abc305aa93 riscv: Define __riscv_copy_{,vec_}{words,byte..
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git for-next
console output: https://syzkaller.appspot.com/x/log.txt?x=11732a1f980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1cf93e35eaea44b1
dashboard link: https://syzkaller.appspot.com/bug?extid=7227d49ef464b1dff36d
compiler:       riscv64-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
userspace arch: riscv64

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/a741b348759c/non_bootable_disk-f2abc305.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/94904c75b810/vmlinux-f2abc305.xz
kernel image: https://storage.googleapis.com/syzbot-assets/2195b3067ea1/Image-f2abc305.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+7227d49ef464b1dff36d@syzkaller.appspotmail.com

WARNING: [] kernel/sched/completion.c:76 at complete_all+0x1d2/0x24c kernel/sched/completion.c:76, CPU#1: syz-executor/4284
Modules linked in:
CPU: 1 UID: 0 PID: 4284 Comm: syz-executor Tainted: G        W           syzkaller #0 PREEMPT 
Tainted: [W]=WARN
Hardware name: riscv-virtio,qemu (DT)
epc : complete_all+0x1d2/0x24c kernel/sched/completion.c:76
 ra : complete_all+0x1d2/0x24c kernel/sched/completion.c:76
epc : ffffffff802d3be2 ra : ffffffff802d3be2 sp : ffff8f800b147010
 gp : ffffffff8a24a9a0 tp : ffffaf8019989ac0 t0 : 0000000000000000
 t1 : fffff5ef03994000 t2 : ffffffff91623ec8 s0 : ffff8f800b147050
 s1 : ffffaf80339588e0 a0 : ffffaf8019989ac8 a1 : ffffffff86deaee0
 a2 : 0000000000000002 a3 : ffffffff8014e99c a4 : 0000000000000000
 a5 : 0000000000000000 a6 : fffff5ef03994001 a7 : ffffaf801cca0003
 s2 : ffffaf8072c654a8 s3 : ffffaf801998aac0 s4 : ffffffff91623ec0
 s5 : 1ffff5f00672b110 s6 : 0000000000000001 s7 : ffff8f800b1471c0
 s8 : ffff8f800b147200 s9 : 1ffff1f001628e34 s10: ffffaf801978a380
 s11: ffffaf80339580e0 t3 : ffffffff88060bc0 t4 : fffff5ef03994000
 t5 : fffff5ef03994001 t6 : 0000000000000002 ssp : 0000000000000000
status: 0000000200000120 badaddr: ffffffff802d3be2 cause: 0000000000000003
[<ffffffff802d3be2>] complete_all+0x1d2/0x24c kernel/sched/completion.c:76
[<ffffffff82c8ae64>] device_pm_sleep_init+0x8c/0x124 drivers/base/power/main.c:118
[<ffffffff82c32670>] device_pm_init drivers/base/power/power.h:168 [inline]
[<ffffffff82c32670>] device_initialize+0x200/0x4e4 drivers/base/core.c:3167
[<ffffffff8535e4f8>] netdev_register_kobject+0x28/0x32c net/core/net-sysfs.c:2324
[<ffffffff85263dbc>] register_netdevice+0x1374/0x2490 net/core/dev.c:11420
[<ffffffff832ff322>] wg_newlink+0x3aa/0x75c drivers/net/wireguard/device.c:372
[<ffffffff852a7684>] rtnl_newlink_create net/core/rtnetlink.c:3863 [inline]
[<ffffffff852a7684>] __rtnl_newlink net/core/rtnetlink.c:3994 [inline]
[<ffffffff852a7684>] rtnl_newlink+0xd74/0x2054 net/core/rtnetlink.c:4109
[<ffffffff852aa8aa>] rtnetlink_rcv_msg+0x8e2/0xd84 net/core/rtnetlink.c:6995
[<ffffffff8560bc98>] netlink_rcv_skb+0x1e8/0x394 net/netlink/af_netlink.c:2550
[<ffffffff85297852>] rtnetlink_rcv+0x26/0x30 net/core/rtnetlink.c:7022
[<ffffffff8560a0f6>] netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
[<ffffffff8560a0f6>] netlink_unicast+0x4f6/0x7c0 net/netlink/af_netlink.c:1344
[<ffffffff8560aba0>] netlink_sendmsg+0x7e0/0xd64 net/netlink/af_netlink.c:1894
[<ffffffff8517a596>] sock_sendmsg_nosec net/socket.c:787 [inline]
[<ffffffff8517a596>] __sock_sendmsg+0xca/0x160 net/socket.c:802
[<ffffffff85185400>] __sys_sendto+0x278/0x350 net/socket.c:2265
[<ffffffff85185598>] __do_sys_sendto net/socket.c:2272 [inline]
[<ffffffff85185598>] __se_sys_sendto net/socket.c:2268 [inline]
[<ffffffff85185598>] __riscv_sys_sendto+0xc0/0x158 net/socket.c:2268
[<ffffffff80078f0a>] syscall_handler+0x92/0x114 arch/riscv/include/asm/syscall.h:112
[<ffffffff8648ebf0>] do_trap_ecall_u+0x3dc/0x61c arch/riscv/kernel/traps.c:342
[<ffffffff864b9f62>] handle_exception+0x15e/0x16a arch/riscv/kernel/entry.S:232


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