r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/kexec_crash_size', 0x0, 0x0)
fsetxattr(r0, &(0x7f0000000080)=@known='user.incfs.id\x00', 0x0, 0x0, 0x0)