INFO: task syz-executor.0:8394 can't die for more than 143 seconds.
syz-executor.0  D28384  8394   6802 0x00004004
Call Trace:
 context_switch kernel/sched/core.c:3455 [inline]
 __schedule+0x8e1/0x1eb0 kernel/sched/core.c:4180
 schedule+0xd0/0x2a0 kernel/sched/core.c:4255
 p9_client_rpc+0x3b5/0x1220 net/9p/client.c:757
 p9_client_flush+0x1f9/0x430 net/9p/client.c:665
 p9_client_rpc+0xfcd/0x1220 net/9p/client.c:782
 p9_client_attach+0x148/0x360 net/9p/client.c:1134
 v9fs_session_init+0xd67/0x1770 fs/9p/v9fs.c:455
 v9fs_mount+0x79/0x970 fs/9p/vfs_super.c:124
 legacy_get_tree+0x105/0x220 fs/fs_context.c:592
 vfs_get_tree+0x89/0x2f0 fs/super.c:1558
 do_new_mount fs/namespace.c:2911 [inline]
 do_mount+0x14c5/0x1df0 fs/namespace.c:3237
 __do_sys_mount fs/namespace.c:3447 [inline]
 __se_sys_mount fs/namespace.c:3424 [inline]
 __x64_sys_mount+0x18f/0x230 fs/namespace.c:3424
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:359
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45cb19
Code: Bad RIP value.
RSP: 002b:00007f45a5978c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00000000004f7280 RCX: 000000000045cb19
RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 000000000078bfa0 R08: 0000000020000380 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000772 R14: 00000000004ca6a1 R15: 00007f45a59796d4

Showing all locks held in the system:
1 lock held by khungtaskd/1156:
 #0: ffffffff89bc3180 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:5779
2 locks held by in:imklog/6492:
 #0: ffff8880977ab870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:928
 #1: ffff8880ae735e58 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1276 [inline]
 #1: ffff8880ae735e58 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x22d/0x1eb0 kernel/sched/core.c:4126

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