r0 = gettid()
r1 = fork()
ptrace(0x10, r1)
r2 = gettid()
ptrace$peeksig(0x4209, r2, &(0x7f0000000000)={0x4, 0x1, 0x9}, &(0x7f0000000040)=[{}, {}, {}, {}, {}, {}, {}, {}, {}])
write$cgroup_pid(0xffffffffffffffff, &(0x7f00000004c0)=r2, 0x12)
ptrace(0x10, r1)
r3 = semget$private(0x0, 0x4, 0x90)
semctl$GETVAL(r3, 0x1, 0xc, &(0x7f0000000500)=""/238)
gettid()
r4 = fork()
rt_tgsigqueueinfo(r4, r0, 0x0, &(0x7f0000000b40)={0x41, 0x0, 0xe846})