// https://syzkaller.appspot.com/bug?id=a58ef01f0578e659755cfac51368cc2373d4324f
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

static unsigned long long procid;

static void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

static uint64_t current_time_ms(void)
{
  struct timespec ts;
  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    exit(1);
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);
  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2)
{
  if (a0 == 0xc || a0 == 0xb) {
    char buf[128];
    sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1,
            (uint8_t)a2);
    return open(buf, O_RDWR, 0);
  } else {
    unsigned long nb = a1;
    char buf[1024];
    char* hash;
    strncpy(buf, (char*)a0, sizeof(buf) - 1);
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(nb % 10);
      nb /= 10;
    }
    return open(buf, a2 & ~O_CREAT, 0);
  }
}

static long syz_open_procfs(volatile long a0, volatile long a1)
{
  char buf[128];
  memset(buf, 0, sizeof(buf));
  if (a0 == 0) {
    snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1);
  } else if (a0 == -1) {
    snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1);
  } else {
    snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1);
  }
  int fd = open(buf, O_RDWR);
  if (fd == -1)
    fd = open(buf, O_RDONLY);
  return fd;
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  syz_open_procfs arguments: [
  //    pid: pid (resource)
  //    file: nil
  //  ]
  //  returns fd
  syz_open_procfs(/*pid=*/0, /*file=*/0);
  //  timer_create arguments: [
  //    id: clock_id = 0x0 (8 bytes)
  //    ev: ptr[in, sigevent] {
  //      sigevent {
  //        val: const = 0x0 (8 bytes)
  //        signo: int32 = 0x100021 (4 bytes)
  //        notify: sigev_notify = 0x0 (4 bytes)
  //        u: union sigevent_u {
  //          thr: sigevent_thread {
  //            func: nil
  //            attr: ptr[in, buffer] {
  //              buffer: {} (length 0x0)
  //            }
  //          }
  //        }
  //        pad = 0x0 (32 bytes)
  //      }
  //    }
  //    timerid: ptr[out, timerid] {
  //      timerid (resource)
  //    }
  //  ]
  *(uint64_t*)0x200000000080 = 0;
  *(uint32_t*)0x200000000088 = 0x100021;
  *(uint32_t*)0x20000000008c = 0;
  *(uint64_t*)0x200000000090 = 0;
  *(uint64_t*)0x200000000098 = 0x200000000340;
  syscall(__NR_timer_create, /*id=*/0ul, /*ev=*/0x200000000080ul,
          /*timerid=*/0x200000000300ul);
  //  fcntl$lock arguments: [
  //    fd: fd (resource)
  //    cmd: fcntl_lock = 0x6 (8 bytes)
  //    lock: ptr[in, flock] {
  //      flock {
  //        type: flock_type = 0x0 (2 bytes)
  //        whence: seek_whence = 0x0 (2 bytes)
  //        pad = 0x0 (4 bytes)
  //        start: intptr = 0x60d6 (8 bytes)
  //        len: intptr = 0x5 (8 bytes)
  //        pid: pid (resource)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //  ]
  *(uint16_t*)0x200000000040 = 0;
  *(uint16_t*)0x200000000042 = 0;
  *(uint64_t*)0x200000000048 = 0x60d6;
  *(uint64_t*)0x200000000050 = 5;
  *(uint32_t*)0x200000000058 = 0;
  syscall(__NR_fcntl, /*fd=*/(intptr_t)-1, /*cmd=F_SETLK*/ 6ul,
          /*lock=*/0x200000000040ul);
  //  syz_open_dev$video4linux arguments: [
  //    dev: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 76 34 6c 2d 73 75 62 64 65 76 23 00} (length
  //      0x11)
  //    }
  //    id: intptr = 0x5 (8 bytes)
  //    flags: open_flags = 0x40000 (8 bytes)
  //  ]
  //  returns fd_video
  memcpy((void*)0x200000000280, "/dev/v4l-subdev#\000", 17);
  res = -1;
  res = syz_open_dev(/*dev=*/0x200000000280, /*id=*/5,
                     /*flags=O_NOATIME*/ 0x40000);
  if (res != -1)
    r[0] = res;
  //  ioctl$VIDIOC_S_CTRL arguments: [
  //    fd: fd_video (resource)
  //    cmd: const = 0xc008561c (4 bytes)
  //    arg: nil
  //  ]
  syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc008561c, /*arg=*/0ul);
  //  openat$ptp0 arguments: [
  //    fd: const = 0xffffffffffffff9c (8 bytes)
  //    file: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 70 74 70 30 00} (length 0xa)
  //    }
  //    flags: open_flags = 0x400001 (4 bytes)
  //    mode: const = 0x0 (2 bytes)
  //  ]
  //  returns fd_ptp
  memcpy((void*)0x200000000000, "/dev/ptp0\000", 10);
  syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000000ul,
          /*flags=__O_TMPFILE|O_WRONLY*/ 0x400001, /*mode=*/0);
  //  timer_settime arguments: [
  //    timerid: timerid (resource)
  //    flags: timer_flags = 0x1 (8 bytes)
  //    new: ptr[in, itimerspec] {
  //      itimerspec {
  //        interv: timespec {
  //          sec: time_sec (resource)
  //          nsec: time_nsec (resource)
  //        }
  //        value: timespec {
  //          sec: time_sec (resource)
  //          nsec: time_nsec (resource)
  //        }
  //      }
  //    }
  //    old: nil
  //  ]
  *(uint64_t*)0x200000000040 = 0;
  *(uint64_t*)0x200000000048 = 0;
  *(uint64_t*)0x200000000050 = 0;
  *(uint64_t*)0x200000000058 = 0x989680;
  syscall(__NR_timer_settime, /*timerid=*/0, /*flags=TIMER_ABSTIME*/ 1ul,
          /*new=*/0x200000000040ul, /*old=*/0ul);
  //  mremap arguments: [
  //    addr: VMA[0x1000]
  //    len: len = 0x1000 (8 bytes)
  //    newlen: len = 0x400000 (8 bytes)
  //    flags: mremap_flags = 0x3 (8 bytes)
  //    newaddr: VMA[0x400000]
  //  ]
  syscall(__NR_mremap, /*addr=*/0x200000a96000ul, /*len=*/0x1000ul,
          /*newlen=*/0x400000ul, /*flags=MREMAP_FIXED|MREMAP_MAYMOVE*/ 3ul,
          /*newaddr=*/0x200000000000ul);
  //  openat$kvm arguments: [
  //    fd: const = 0xffffffffffffff9c (8 bytes)
  //    file: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 6b 76 6d 00} (length 0x9)
  //    }
  //    flags: open_flags = 0x2702 (4 bytes)
  //    mode: const = 0x0 (2 bytes)
  //  ]
  //  returns fd_kvm
  memcpy((void*)0x200000000240, "/dev/kvm\000", 9);
  res = syscall(
      __NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000240ul,
      /*flags=O_TRUNC|O_NOCTTY|FASYNC|O_APPEND|O_RDWR*/ 0x2702, /*mode=*/0);
  if (res != -1)
    r[1] = res;
  //  ioctl$KVM_CREATE_VM arguments: [
  //    fd: fd_kvm (resource)
  //    cmd: const = 0xae01 (4 bytes)
  //    type: intptr = 0x0 (8 bytes)
  //  ]
  //  returns fd_kvmvm
  res = syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0xae01, /*type=*/0ul);
  if (res != -1)
    r[2] = res;
  //  ioctl$KVM_CREATE_IRQCHIP arguments: [
  //    fd: fd_kvmvm (resource)
  //    cmd: const = 0xae60 (4 bytes)
  //  ]
  syscall(__NR_ioctl, /*fd=*/r[2], /*cmd=*/0xae60, 0);
  //  ioctl$KVM_CREATE_PIT2 arguments: [
  //    fd: fd_kvmvm (resource)
  //    cmd: const = 0x4040ae77 (4 bytes)
  //    arg: ptr[in, kvm_pit_config] {
  //      kvm_pit_config {
  //        flags: int32 = 0x6 (4 bytes)
  //        pad: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00} (length
  //        0x3c)
  //      }
  //    }
  //  ]
  *(uint32_t*)0x200000000040 = 6;
  memset((void*)0x200000000044, 0, 60);
  syscall(__NR_ioctl, /*fd=*/r[2], /*cmd=*/0x4040ae77,
          /*arg=*/0x200000000040ul);
  //  ioctl$KVM_CREATE_VCPU arguments: [
  //    fd: fd_kvmvm (resource)
  //    cmd: const = 0xae41 (4 bytes)
  //    id: intptr = 0x0 (8 bytes)
  //  ]
  //  returns fd_kvmcpu
  res = syscall(__NR_ioctl, /*fd=*/r[2], /*cmd=*/0xae41, /*id=*/0ul);
  if (res != -1)
    r[3] = res;
  //  ioctl$KVM_SET_PIT2 arguments: [
  //    fd: fd_kvmvm (resource)
  //    cmd: const = 0x4070aea0 (4 bytes)
  //    arg: ptr[in, kvm_pit_state2] {
  //      kvm_pit_state2 {
  //        chans: array[kvm_pit_channel_state] {
  //          kvm_pit_channel_state {
  //            count: int32 = 0x2 (4 bytes)
  //            lcount: int16 = 0x95c (2 bytes)
  //            latched: int8 = 0x61 (1 bytes)
  //            lstatus: int8 = 0x7 (1 bytes)
  //            status: int8 = 0x2 (1 bytes)
  //            rstate: int8 = 0xe (1 bytes)
  //            wstate: int8 = 0x81 (1 bytes)
  //            wlatch: int8 = 0x4b (1 bytes)
  //            rw: int8 = 0xf (1 bytes)
  //            mode: int8 = 0x4 (1 bytes)
  //            bcd: int8 = 0x3 (1 bytes)
  //            gate: int8 = 0x1b (1 bytes)
  //            ltime: int64 = 0x7 (8 bytes)
  //          }
  //          kvm_pit_channel_state {
  //            count: int32 = 0x2 (4 bytes)
  //            lcount: int16 = 0x6 (2 bytes)
  //            latched: int8 = 0x0 (1 bytes)
  //            lstatus: int8 = 0x2 (1 bytes)
  //            status: int8 = 0x0 (1 bytes)
  //            rstate: int8 = 0x12 (1 bytes)
  //            wstate: int8 = 0x5 (1 bytes)
  //            wlatch: int8 = 0x1 (1 bytes)
  //            rw: int8 = 0x7a (1 bytes)
  //            mode: int8 = 0xc0 (1 bytes)
  //            bcd: int8 = 0x5 (1 bytes)
  //            gate: int8 = 0xa6 (1 bytes)
  //            ltime: int64 = 0x401 (8 bytes)
  //          }
  //          kvm_pit_channel_state {
  //            count: int32 = 0x4 (4 bytes)
  //            lcount: int16 = 0x15 (2 bytes)
  //            latched: int8 = 0x40 (1 bytes)
  //            lstatus: int8 = 0x1 (1 bytes)
  //            status: int8 = 0x20 (1 bytes)
  //            rstate: int8 = 0xc8 (1 bytes)
  //            wstate: int8 = 0xad (1 bytes)
  //            wlatch: int8 = 0xe (1 bytes)
  //            rw: int8 = 0x7 (1 bytes)
  //            mode: int8 = 0x0 (1 bytes)
  //            bcd: int8 = 0x2f (1 bytes)
  //            gate: int8 = 0x1 (1 bytes)
  //            ltime: int64 = 0xc (8 bytes)
  //          }
  //        }
  //        flags: int32 = 0x6 (4 bytes)
  //        pad: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00} (length 0x24)
  //      }
  //    }
  //  ]
  *(uint32_t*)0x200000000080 = 2;
  *(uint16_t*)0x200000000084 = 0x95c;
  *(uint8_t*)0x200000000086 = 0x61;
  *(uint8_t*)0x200000000087 = 7;
  *(uint8_t*)0x200000000088 = 2;
  *(uint8_t*)0x200000000089 = 0xe;
  *(uint8_t*)0x20000000008a = 0x81;
  *(uint8_t*)0x20000000008b = 0x4b;
  *(uint8_t*)0x20000000008c = 0xf;
  *(uint8_t*)0x20000000008d = 4;
  *(uint8_t*)0x20000000008e = 3;
  *(uint8_t*)0x20000000008f = 0x1b;
  *(uint64_t*)0x200000000090 = 7;
  *(uint32_t*)0x200000000098 = 2;
  *(uint16_t*)0x20000000009c = 6;
  *(uint8_t*)0x20000000009e = 0;
  *(uint8_t*)0x20000000009f = 2;
  *(uint8_t*)0x2000000000a0 = 0;
  *(uint8_t*)0x2000000000a1 = 0x12;
  *(uint8_t*)0x2000000000a2 = 5;
  *(uint8_t*)0x2000000000a3 = 1;
  *(uint8_t*)0x2000000000a4 = 0x7a;
  *(uint8_t*)0x2000000000a5 = 0xc0;
  *(uint8_t*)0x2000000000a6 = 5;
  *(uint8_t*)0x2000000000a7 = 0xa6;
  *(uint64_t*)0x2000000000a8 = 0x401;
  *(uint32_t*)0x2000000000b0 = 4;
  *(uint16_t*)0x2000000000b4 = 0x15;
  *(uint8_t*)0x2000000000b6 = 0x40;
  *(uint8_t*)0x2000000000b7 = 1;
  *(uint8_t*)0x2000000000b8 = 0x20;
  *(uint8_t*)0x2000000000b9 = 0xc8;
  *(uint8_t*)0x2000000000ba = 0xad;
  *(uint8_t*)0x2000000000bb = 0xe;
  *(uint8_t*)0x2000000000bc = 7;
  *(uint8_t*)0x2000000000bd = 0;
  *(uint8_t*)0x2000000000be = 0x2f;
  *(uint8_t*)0x2000000000bf = 1;
  *(uint64_t*)0x2000000000c0 = 0xc;
  *(uint32_t*)0x2000000000c8 = 6;
  memset((void*)0x2000000000cc, 0, 36);
  syscall(__NR_ioctl, /*fd=*/r[2], /*cmd=*/0x4070aea0,
          /*arg=*/0x200000000080ul);
  //  ioctl$KVM_SET_IRQCHIP arguments: [
  //    fd: fd_kvmvm (resource)
  //    cmd: const = 0x8208ae63 (4 bytes)
  //    arg: ptr[in, kvm_irqchip] {
  //      kvm_irqchip {
  //        chipid: kvm_chip_id = 0x0 (4 bytes)
  //        pad: const = 0x0 (4 bytes)
  //        chip: union kvm_irq_chip {
  //          pic: kvm_pic_state {
  //            lastirr: int8 = 0x0 (1 bytes)
  //            irr: int8 = 0x3 (1 bytes)
  //            imr: int8 = 0x6 (1 bytes)
  //            isr: int8 = 0x10 (1 bytes)
  //            padd: int8 = 0x5 (1 bytes)
  //            irqbase: int8 = 0x6 (1 bytes)
  //            readreg: int8 = 0x6 (1 bytes)
  //            poll: int8 = 0x7 (1 bytes)
  //            special: int8 = 0x3 (1 bytes)
  //            initst: int8 = 0x9 (1 bytes)
  //            autoeoi: int8 = 0xff (1 bytes)
  //            rotate: int8 = 0x7 (1 bytes)
  //            nestedm: int8 = 0x64 (1 bytes)
  //            init4: int8 = 0xf6 (1 bytes)
  //            elcr: int8 = 0x3 (1 bytes)
  //            elcrmas: int8 = 0x9 (1 bytes)
  //          }
  //        }
  //      }
  //    }
  //  ]
  *(uint32_t*)0x200000000600 = 0;
  *(uint32_t*)0x200000000604 = 0;
  *(uint8_t*)0x200000000608 = 0;
  *(uint8_t*)0x200000000609 = 3;
  *(uint8_t*)0x20000000060a = 6;
  *(uint8_t*)0x20000000060b = 0x10;
  *(uint8_t*)0x20000000060c = 5;
  *(uint8_t*)0x20000000060d = 6;
  *(uint8_t*)0x20000000060e = 6;
  *(uint8_t*)0x20000000060f = 7;
  *(uint8_t*)0x200000000610 = 3;
  *(uint8_t*)0x200000000611 = 9;
  *(uint8_t*)0x200000000612 = -1;
  *(uint8_t*)0x200000000613 = 7;
  *(uint8_t*)0x200000000614 = 0x64;
  *(uint8_t*)0x200000000615 = 0xf6;
  *(uint8_t*)0x200000000616 = 3;
  *(uint8_t*)0x200000000617 = 9;
  syscall(__NR_ioctl, /*fd=*/r[2], /*cmd=*/0x8208ae63,
          /*arg=*/0x200000000600ul);
  //  ioctl$KVM_SET_REGS arguments: [
  //    fd: fd_kvmcpu (resource)
  //    cmd: const = 0x4090ae82 (4 bytes)
  //    arg: ptr[in, kvm_regs] {
  //      kvm_regs {
  //        gp: array[int64] {
  //          int64 = 0xcb (8 bytes)
  //          int64 = 0xd (8 bytes)
  //          int64 = 0x6 (8 bytes)
  //          int64 = 0x6d (8 bytes)
  //          int64 = 0x2 (8 bytes)
  //          int64 = 0x1002 (8 bytes)
  //          int64 = 0xf1 (8 bytes)
  //          int64 = 0x200 (8 bytes)
  //          int64 = 0x7fffffffffffb (8 bytes)
  //          int64 = 0x8d (8 bytes)
  //          int64 = 0xfffffffffffffffe (8 bytes)
  //          int64 = 0x1 (8 bytes)
  //          int64 = 0xfffffffffffffffe (8 bytes)
  //          int64 = 0x5 (8 bytes)
  //          int64 = 0x3 (8 bytes)
  //          int64 = 0xbde (8 bytes)
  //        }
  //        rip: kvm_guest_addrs = 0x1000 (8 bytes)
  //        rflags: kvm_x86_rflags = 0x67a64fa265d09613 (8 bytes)
  //      }
  //    }
  //  ]
  *(uint64_t*)0x2000000003c0 = 0xcb;
  *(uint64_t*)0x2000000003c8 = 0xd;
  *(uint64_t*)0x2000000003d0 = 6;
  *(uint64_t*)0x2000000003d8 = 0x6d;
  *(uint64_t*)0x2000000003e0 = 2;
  *(uint64_t*)0x2000000003e8 = 0x1002;
  *(uint64_t*)0x2000000003f0 = 0xf1;
  *(uint64_t*)0x2000000003f8 = 0x200;
  *(uint64_t*)0x200000000400 = 0x7fffffffffffb;
  *(uint64_t*)0x200000000408 = 0x8d;
  *(uint64_t*)0x200000000410 = 0xfffffffffffffffe;
  *(uint64_t*)0x200000000418 = 1;
  *(uint64_t*)0x200000000420 = 0xfffffffffffffffe;
  *(uint64_t*)0x200000000428 = 5;
  *(uint64_t*)0x200000000430 = 3;
  *(uint64_t*)0x200000000438 = 0xbde;
  *(uint64_t*)0x200000000440 = 0x1000;
  *(uint64_t*)0x200000000448 = 0x67a64fa265d09613;
  syscall(__NR_ioctl, /*fd=*/r[3], /*cmd=*/0x4090ae82,
          /*arg=*/0x2000000003c0ul);
  //  ioctl$KVM_RUN arguments: [
  //    fd: fd_kvmcpu (resource)
  //    cmd: const = 0xae80 (4 bytes)
  //    arg: const = 0x0 (8 bytes)
  //  ]
  syscall(__NR_ioctl, /*fd=*/r[3], /*cmd=*/0xae80, /*arg=*/0ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}