r0 = gettid()
r1 = fork()
ptrace(0x10, r1)
ptrace$peeksig(0x4209, 0x0, &(0x7f0000000000)={0x0, 0x1, 0x6}, &(0x7f0000000040)=[{}, {}, {}, {}, {}, {}])
write$cgroup_pid(0xffffffffffffffff, &(0x7f00000004c0), 0x12)
ptrace(0x10, r1)
semget$private(0x0, 0x4, 0x0)
gettid()
r2 = fork()
rt_tgsigqueueinfo(r2, r0, 0x0, &(0x7f0000000b40)={0x41, 0x0, 0xe846})