r0 = gettid() r1 = fork() ptrace$peeksig(0x4209, 0x0, &(0x7f0000000000)={0x4, 0x1, 0x8}, &(0x7f0000000040)=[{}, {}, {}, {}, {}, {}, {}, {}]) write$cgroup_pid(0xffffffffffffffff, &(0x7f00000004c0), 0x12) ptrace(0x10, r1) r2 = semget$private(0x0, 0x4, 0x90) semctl$GETVAL(r2, 0x1, 0xc, &(0x7f0000000500)=""/238) gettid() r3 = fork() rt_tgsigqueueinfo(r3, r0, 0x0, &(0x7f0000000b40)={0x41})