r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x42, 0x0)
r1 = clone3(&(0x7f00000008c0)={0x1040100, 0x0, 0x0, 0x0, {}, 0x0, 0x0, 0x0, 0x0}, 0x58)
pipe(&(0x7f00000001c0)={<r2=>0xffffffffffffffff, <r3=>0xffffffffffffffff})
mount$9p_fd(0x0, &(0x7f0000000040)='./file1\x00', &(0x7f00000000c0), 0x0, &(0x7f0000000400)={'trans=fd,', {'rfdno', 0x3d, r2}, 0x2c, {'wfdno', 0x3d, r3}, 0x2c, {[{@version_u}]}})
r4 = fork()
ptrace(0x10, r4)
ptrace$setsig(0x4203, r4, 0x8269, &(0x7f00000000c0)={0x1a, 0x5, 0x9})
kcmp(r4, r1, 0x4, r0, r0)