// https://syzkaller.appspot.com/bug?id=1ec500baf19f5376d2162d62557d0394359ce056
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.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>

#include <linux/futex.h>

unsigned long long procid;

static __thread int skip_segv;
static __thread jmp_buf segv_env;

static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
  uintptr_t addr = (uintptr_t)info->si_addr;
  const uintptr_t prog_start = 1 << 20;
  const uintptr_t prog_end = 100 << 20;
  if (__atomic_load_n(&skip_segv, __ATOMIC_RELAXED) &&
      (addr < prog_start || addr > prog_end)) {
    _longjmp(segv_env, 1);
  }
  exit(sig);
}

static void install_segv_handler(void)
{
  struct sigaction sa;
  memset(&sa, 0, sizeof(sa));
  sa.sa_handler = SIG_IGN;
  syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
  syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
  memset(&sa, 0, sizeof(sa));
  sa.sa_sigaction = segv_handler;
  sa.sa_flags = SA_NODEFER | SA_SIGINFO;
  sigaction(SIGSEGV, &sa, NULL);
  sigaction(SIGBUS, &sa, NULL);
}

#define NONFAILING(...)                                                        \
  {                                                                            \
    __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    if (_setjmp(segv_env) == 0) {                                              \
      __VA_ARGS__;                                                             \
    }                                                                          \
    __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
  }

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 void use_temporary_dir(void)
{
  char tmpdir_template[] = "./syzkaller.XXXXXX";
  char* tmpdir = mkdtemp(tmpdir_template);
  if (!tmpdir)
    exit(1);
  if (chmod(tmpdir, 0777))
    exit(1);
  if (chdir(tmpdir))
    exit(1);
}

static void thread_start(void* (*fn)(void*), void* arg)
{
  pthread_t th;
  pthread_attr_t attr;
  pthread_attr_init(&attr);
  pthread_attr_setstacksize(&attr, 128 << 10);
  int i;
  for (i = 0; i < 100; i++) {
    if (pthread_create(&th, &attr, fn, arg) == 0) {
      pthread_attr_destroy(&attr);
      return;
    }
    if (errno == EAGAIN) {
      usleep(50);
      continue;
    }
    break;
  }
  exit(1);
}

typedef struct {
  int state;
} event_t;

static void event_init(event_t* ev)
{
  ev->state = 0;
}

static void event_reset(event_t* ev)
{
  ev->state = 0;
}

static void event_set(event_t* ev)
{
  if (ev->state)
    exit(1);
  __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE);
  syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000);
}

static void event_wait(event_t* ev)
{
  while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0);
}

static int event_isset(event_t* ev)
{
  return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE);
}

static int event_timedwait(event_t* ev, uint64_t timeout)
{
  uint64_t start = current_time_ms();
  uint64_t now = start;
  for (;;) {
    uint64_t remain = timeout - (now - start);
    struct timespec ts;
    ts.tv_sec = remain / 1000;
    ts.tv_nsec = (remain % 1000) * 1000 * 1000;
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts);
    if (__atomic_load_n(&ev->state, __ATOMIC_RELAXED))
      return 1;
    now = current_time_ms();
    if (now - start > timeout)
      return 0;
  }
}

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;
}

#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  DIR* dp;
  struct dirent* ep;
  int iter = 0;
retry:
  while (umount2(dir, MNT_DETACH) == 0) {
  }
  dp = opendir(dir);
  if (dp == NULL) {
    if (errno == EMFILE) {
      exit(1);
    }
    exit(1);
  }
  while ((ep = readdir(dp))) {
    if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
      continue;
    char filename[FILENAME_MAX];
    snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
    while (umount2(filename, MNT_DETACH) == 0) {
    }
    struct stat st;
    if (lstat(filename, &st))
      exit(1);
    if (S_ISDIR(st.st_mode)) {
      remove_dir(filename);
      continue;
    }
    int i;
    for (i = 0;; i++) {
      if (unlink(filename) == 0)
        break;
      if (errno == EPERM) {
        int fd = open(filename, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno != EBUSY || i > 100)
        exit(1);
      if (umount2(filename, MNT_DETACH))
        exit(1);
    }
  }
  closedir(dp);
  int i;
  for (i = 0;; i++) {
    if (rmdir(dir) == 0)
      break;
    if (i < 100) {
      if (errno == EPERM) {
        int fd = open(dir, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno == EBUSY) {
        if (umount2(dir, MNT_DETACH))
          exit(1);
        continue;
      }
      if (errno == ENOTEMPTY) {
        if (iter < 100) {
          iter++;
          goto retry;
        }
      }
    }
    exit(1);
  }
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  int i;
  for (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");
}

struct thread_t {
  int created, call;
  event_t ready, done;
};

static struct thread_t threads[16];
static void execute_call(int call);
static int running;

static void* thr(void* arg)
{
  struct thread_t* th = (struct thread_t*)arg;
  for (;;) {
    event_wait(&th->ready);
    event_reset(&th->ready);
    execute_call(th->call);
    __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
    event_set(&th->done);
  }
  return 0;
}

static void execute_one(void)
{
  int i, call, thread;
  int collide = 0;
again:
  for (call = 0; call < 3; call++) {
    for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
         thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        event_init(&th->ready);
        event_init(&th->done);
        event_set(&th->done);
        thread_start(thr, th);
      }
      if (!event_isset(&th->done))
        continue;
      event_reset(&th->done);
      th->call = call;
      __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
      event_set(&th->ready);
      if (collide && (call % 2) == 0)
        break;
      event_timedwait(&th->done, 45);
      break;
    }
  }
  for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
    sleep_ms(1);
  if (!collide) {
    collide = 1;
    goto again;
  }
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter;
  for (iter = 0;; iter++) {
    char cwdbuf[32];
    sprintf(cwdbuf, "./%d", iter);
    if (mkdir(cwdbuf, 0777))
      exit(1);
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      if (chdir(cwdbuf))
        exit(1);
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5 * 1000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
    remove_dir(cwdbuf);
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res;
  switch (call) {
  case 0:
    NONFAILING(memcpy((void*)0x20000080, "/dev/uhid\000", 10));
    res = syscall(__NR_openat, 0xffffffffffffff9cul, 0x20000080ul, 2ul, 0ul);
    if (res != -1)
      r[0] = res;
    break;
  case 1:
    NONFAILING(memcpy(
        (void*)0x20000bc0,
        "\x0b\x00\x00\x00\x73\x79\x7a\x31\x19\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\xf3\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x73\x8d\x7a\x31"
        "\x00\x00\x00\x00\x00\xff\x07\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x79\x7a\x31\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xcf"
        "\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x16\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x3b\x38\xe9\x67\xac\x82\x06\xea\xae"
        "\x86\xb9\x7e\xec\x0b\x2b\xed\x1e\xe2\x33\x64\xb1\x0d\x6a\xad\x51\x02"
        "\x00\x00\x00\xe2\xa1\xdb\x3c\x6a\x0d\xee\x4a\xfc\x66\xd2\x44\x28\x05"
        "\x20\x1c\x39\x38\x9a\x80\x4c\x41\xc2\x99\x3f\xc6\x7e\x8a\x14\x60\x45"
        "\xe1\x4a\x8a\x08\x00\x55\x0e\x6a\x25\xc0\xef\x65\xf6\xec\x71\xf0\x08"
        "\x42\x54\xd1\x40\x18\x7f\xaf\xa4\xa1\xee\x6e\xce\x53\xc6\x73\x85\xb8"
        "\x83\xa3\x6a\xd2\x4a\x04\x00\x00\x00\x00\x00\x00\x00\x6a\x8a\xb1\x1b"
        "\x0a\x0b\x00\xe7\x7e\x6c\x16\x18\x9c\xfa\x16\xcb\xe0\x1a\x4c\xe4\x11"
        "\x37\x8e\xaa\xb7\x37\x2d\xab\x5e\xef\x84\xc3\x1b\x2d\xad\x86\x8a\x53"
        "\xe6\xf5\xe6\x97\x46\xa7\x1e\xc9\x2d\xca\xa9\xa7\xdf\xab\x39\x42\x86"
        "\xe5\xc8\x1e\xae\x45\xe3\xa2\x5b\x94\x2b\x8d\xa1\x1e\xdb\x57\x8b\x45"
        "\x3a\xca\xc0\x3a\x9d\x34\x48\x00\x00\x00\x00\x83\xd6\xd5\xfe\x4f\x83"
        "\x3d\x4d\x4c\xfb\xee\xf0\xe0\xe6\x2b\xe2\x05\x00\x00\x00\x3c\x32\x98"
        "\x4c\x6c\x4b\x2b\x9c\x33\xd8\xa6\x24\xce\xa9\x5c\x3b\x3c\x6d\xd8\x73"
        "\x56\x9c\xf4\x78\x6f\xc5\x16\x6b\x03\x00\x00\x00\x00\x00\x1f\xf2\x8d"
        "\x3c\xe3\xe3\xb8\xf8\x1e\x34\xcf\x97\xc9\xc8\x41\xcb\x2e\xf0\x81\x07"
        "\xa9\xa9\x65\x49\xe3\xd2\x59\xdf\x17\xe2\x9e\xd6\x4b\xd6\x12\x08\x13"
        "\xf9\xf0\x34\x4e\x13\x95\x06\x70\x1e\x8f\xde\xdb\x06\x00\x9b\x5e\x4d"
        "\x0c\x67\xbd\xa0\xb9\x28\xb7\x32\xcf\xf7\x82\xb0\x68\x40\x75\xf2\xcb"
        "\x78\x51\xef\xdd\x77\x97\xee\x95\xd2\xac\x28\xa8\xca\xbd\x26\xc1\x56"
        "\x82\xaa\x58\xd3\x1a\xec\x95\x6b\xd7\xc2\x78\x06\x40\x34\x34\xb3\xc3"
        "\x0b\x07\x0b\xcc\x82\x66\xe1\x2f\xa6\x66\x02\x05\x62\x56\xf7\x46\x75"
        "\xb7\xcb\x6a\x2c\xd9\x1a\x59\xde\x4d\x87\xb2\x70\x8d\x70\xc8\xf3\xdf"
        "\x53\xca\xf8\xfe\x18\x0c\x4d\xea\x3f\x5b\x7a\x87\x1b\x30\xc7\xa5\x75"
        "\x3b\x48\xf7\xf0\x91\x92\xa3\x4b\x0e\xfa\xab\x02\xdc\xa0\x51\x7e\xee"
        "\x10\xff\x30\x20\x6f\x78\xec\x82\xc7\x2f\xe0\x08\x30\x83\x1d\xcd\x6e"
        "\x9d\xe6\xc6\x20\xa0\xe8\xe0\xd0\x57\x0b\x43\x99\x41\x71\x3e\xf2\x8d"
        "\xdd\x5f\x84\x47\xbb\xf7\xa7\xbc\xdc\x9d\x94\xa5\xdb\x17\x8b\x64\xa5"
        "\x5d\xc0\xd3\x73\xad\x4e\xf5\x58\x00\x37\xea\x20\xb3\x4b\x2b\x0c\x88"
        "\x75\xac\xf8\x90\x9f\xe0\x50\xd6\x2e\xe8\x5d\x1b\x3e\xa8\x76\xab\x40"
        "\x8e\xd3\xdf\x53\x1e\x79\x82\x3e\xb4\x05\x6a\xa3\x3a\xe9\x20\x76\x46"
        "\xab\x9b\xa6\xd7\x93\x41\x22\x0d\x7c\x52\xe6\x97\xd4\x04\x09\xc0\xb4"
        "\x65\x9a\x42\x98\x9d\x56\x79\x92\x71\x44\xa7\x19\x68\x1c\x7b\xdf\x46"
        "\x1a\x34\x77\x5c\x75\x23\x69\xa1\x63\x6c\x92\xa2\xdf\xc8\x68\xed\x0b"
        "\x3e\xa8\x49\x6f\xbe\xb1\x80\x8d\x7f\xd3\xa4\xfd\x4d\x52\x1b\xc2\x44"
        "\x30\x6a\x13\xe3\x04\xf2\x0c\xb0\x3e\x7a\x54\x26\x42\x2f\x9b\x91\xf2"
        "\xd4\x4c\x99\x9e\x21\xc6\xba\xcf\xf3\xbc\xa0\xd0\x3b\x95\x13\xe8\x7f"
        "\xee\xf4\xb3\xca\x5c\xc4\x2e\x60\x26\x7a\x47\x8f\xa1\x1a\xb4\x6f\xc3"
        "\x81\x2f\x75\xba\x64\x0d",
        924));
    syscall(__NR_write, r[0], 0x20000bc0ul, 0x12eul);
    break;
  case 2:
    NONFAILING(*(uint32_t*)0x20000300 = 8);
    NONFAILING(memcpy(
        (void*)0x20000304,
        "\xed\x4d\x2b\x70\x42\x8a\x2f\x63\x9e\xa9\xd5\x21\xe6\xff\x44\xdb\x2b"
        "\xc3\x09\xbf\x0c\xd1\x00\x7c\x83\x31\xc0\xb0\xf4\x6e\x2e\xa0\xd8\xa9"
        "\xe8\xbb\xcc\x4e\x8a\xf5\x3d\x63\xef\x9b\xdc\xe3\x8c\x83\xf4\x9d\xc1"
        "\x7e\xe9\xf2\x55\x0f\x5a\x1b\x5d\x21\x62\x86\x9a\x7c\x72\x27\x51\x54"
        "\xfb\xa2\x9d\x0e\x18\x61\x12\x6a\xe7\xa6\x66\xd1\xd0\xf0\x65\x6b\xbe"
        "\xd7\xf8\x5a\xbe\x1d\x5b\x67\x97\x38\x0f\xb4\x7b\x47\x0c\xcb\x0b\x62"
        "\xc4\xe2\xf7\x45\xba\x6d\x39\x95\x8e\xfe\xcd\xf2\x72\xec\x25\x48\x0f"
        "\xad\xc0\xb4\xd7\xe0\x6e\x27\xe0\x61\x42\xa9\xc8\x32\xbd\x47\xb0\x3e"
        "\xf5\x19\x35\x2e\x5c\x67\xcd\x2a\x0c\xd5\x31\x09\x59\x7f\xd0\xad\x07"
        "\x6c\x22\x3c\x69\x13\x75\x5f\x2c\x66\x1a\x13\xc9\xbb\x95\x6d\x6a\xf4"
        "\x7c\xfd\x35\x78\x76\x9d\xeb\xbc\x99\xc8\xbf\xf7\x06\x9e\xc7\x20\x4a"
        "\x00\x75\xcb\x7d\xb6\x90\x7b\x47\x47\xcb\x4b\x66\x4c\x66\x4b\xb3\x77"
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        "\x87\x67\x57\x0a\x66\x03\xa2\xa3\x33\x85\xc0\xdc\x2f\xea\x71\xe9\xe6"
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        "\x61\x32\x2b\x1f\xc0\x4a\x0a\x7c\xdd\x2c\x77\xee\x47\x16\xb6\xf0\x67"
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        "\x0b\x0a\x1d\x4b\x9a\xb8\x77\x87\x4b\xbd\x56\x62\xc8\x42\x62\xf4\x51"
        "\x69\x78\x3b\x59\x21\x60\xb8\x5e\x93\x60\x2e\x73\x9a\xed\x9f\xed\x99"
        "\x49\x3e\x82\xb9\x82\x7b\xaf\x81\x84\x5b\x62\x4c\x4c\xb1\x76\x16\xa0"
        "\xe9\x16\x8f\x44\x83\xb4\xdd\xde\x48\x16\x61\xf8\xa9\x86\x6f\x2f\x79"
        "\x6b\x52\xa5\xe0\xe4\x5e\x7e\x7e\x11\xf6\x84\x11\xfe\x6c\x97\xf6\x52"
        "\x3c\x70\x30\xe6\x57\x8f\x25\x2f\x17\x47\x70\x58\x1d\x92\x35\xf7\xd9"
        "\x99\xa4\xcf\x07\x3b\x58\x04\xd3\xa7\x65\xc1\x10\x91\x8f\xa7\x78\x79"
        "\x56\x71\xcb\x98\x54\xff\x8f\xf5\x9d\xe6\x24\x2a\x6b\xff\xc3\x54\x0e"
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        "\x9e\xcf\xc4\x74\x7a\x4a\x71\x4f\x0b\xb4\x03\x94\xcc\x00\x0a\x96\x68"
        "\xb1\xaa\x47\xec\xe9\x4a\xc7\xd0\x20\x22\xdb\x54\xf2\x9b\xc1\x21\x69"
        "\xe1\x93\x4c\xf2\x35\x66\x78\x17\xe5\xef\x9e\xc4\x5f\x86\xc2\x13\xb8"
        "\x57\xbe\xd0\x8f\x23\x9d\x1e\x8f\x62\x9e\x7e\x50\xcb\xd7\x16\x5b\x3b"
        "\xa8\x2d\x62\x57\x33\x30\x7e\xa7\xef\x62\xdd\x0b\x7a\x82\xfd\xc7\x43"
        "\x9b\x84\x55\x59\x9c\xda\x37\xff\x51\xa5\x0f\xda\x89\x10\x6d\x1f\x67"
        "\x36\x71\xd8\xb7\xc8\x40\xfd\x4d\x37\x66\x22\x25\xb3\x73\x69\x4c\xc3"
        "\x6e\xbf\xe7\x43\xde\x04\xff\x86\xef\x1b\x2b\x5a\x85\xc9\x8b\x72\x01"
        "\x88\x0b\x75\x3a\x22\xad\x26\x30\x18\xe4\xf4\xd8\x65\xa9\x67\x7c\xea"
        "\xb4\x0a\x8c\x0c\x9d\x9f\xe9\x0e\x19\x32\x9e\xd8\xa6\x18\x5a\x9d\x3a"
        "\x36\x47\x04\x73\xd6\x5d\xcb\xdb\x1c\xb0\xdf\x94\x22\x27\xff\xf5\x04"
        "\xf6\xe0\x04\xce\x97\x2d\xed\x4c\xba\x85\xb5\xde\x3e\xe7\x95\x06\xf3"
        "\x30\x45\x79\xf2\x0a\xcb\xb9\x92\x81\xd1\x30\xa3\xe0\x84\xe9\x3f\x5e"
        "\xdc\x3c\x47\x02\x8c\xfb\x34\x34\xbe\x18\x4f\xa8\xc1\xc8\xc9\xba\x88"
        "\xeb\x1b\xbf\x90\x60\x01\x1f\xbb\xdb\x78\x36\xd8\xf7\x9a\x54\x9d\xce"
        "\xe1\x48\x09\xfb\xcb\xf0\x92\xbe\xee\x73\xb9\xae\xc3\x10\xad\x59\x59"
        "\xcc\xa9\x4c\xa2\xa0\xf2\x38\xb8\x66\xc2\xa5\x6a\x2b\x0d\xb0\xab\x5b"
        "\xfb\x5e\x0d\x20\x15\xf0\x94\x24\x85\x7f\x7d\x99\xb2\x8a\x9d\x72\x7c"
        "\xdf\x9b\x42\xa4\x41\x20\xb1\x67\xa5\xbc\x12\x26\x5b\x27\x95\xc2\x3c"
        "\xe4\xb5\x85\x87\xc1\xa3\x7f\x08\x29\x19\x47\xfa\x78\x85\xeb\x24\x98"
        "\xdf\x6a\x5f\x29\xba\x25\xfd\x9c\x15\xff\xa5\xb2\x60\xa7\x97\xf7\x18"
        "\xbd\x9e\xad\xe7\x56\xcf\x64\x36\xcc\x39\x1f\xe8\x91\x42\x15\x6d\x38"
        "\x03\x7d\x71\xf3\xfd\x76\x3d\x27\x52\x5d\x29\x65\xba\xe8\x59\xb2\x93"
        "\xb1\x78\xe1\xf7\x2e\x26\x9e\x89\xfd\x3e\x6d\x5f\x50\xa3\x4c\x17\x5e"
        "\x09\xb4\x09\x8b\x94\xc7\xee\x7f\x67\x8d\xa3\xbf\x70\xcb\xdf\x82\xf5"
        "\x75\x8b\x5a\x0b\xfc\x18\x21\x81\x14\x84\x1c\xf5\x3b\xf2\x48\x84\x8b"
        "\xa1\x4b\x02\xac\x9d\xa9\xc9\xcf\x65\xfd\x3d\xa4\xa0\x2d\x44\x4b\x90"
        "\xbd\x6e\x67\x50\x8c\xee\x90\xb5\x8e\x1d\x79\x06\x48\xb6\x22\xee\x27"
        "\x54\xe8\xa4\x0c\x52\x38\x3f\x53\x80\x21\xbe\xca\xed\x1f\x07\xa2\xc1"
        "\xd9\x8c\xbd\xcc\x5e\xef\x48\x81\xe6\x35\x2f\xf0\x91\xd8\x58\x0d\x3d"
        "\x3c\xc9\xfa\x08\xa6\xc1\xfa\xc8\x42\x4a\xa7\xb0\x43\x49\x3f\x34\x81"
        "\x2c\x5f\xc6\x1a\xf1\x50\x01\x90\x2b\x86\x69\x0c\xeb\x34\x41\x93\xb0"
        "\xe8\xf2\xd8\x63\xe9\x10\x4a\x55\x4a\x9b\xb9\x7e\x04\xcf\xdd\xb8\xe7"
        "\xb3\xff\x31\xb5\x85\xd6\x00\x26\xb4\x2c\xf8\xf6\xf0\x23\x56\x36\xc7"
        "\x7b\x6f\x91\xdf\x8a\x65\x4b\x1c\x66\x69\x10\x21\xf0\xba\xbb\x4f\xe4"
        "\xc4\xa4\x24\x58\x02\x6e\x04\x5d\x8a\x63\xb2\xc9\x99\x48\x4a\x5f\x9e"
        "\xe2\x50\xba\x6b\xde\xbe\xb9\xc9\x9c\x20\x96\x0d\x63\x0a\xee\x84\xe0"
        "\x63\x85\x6f\xce\x09\x32\x23\x56\xd2\x8d\x5a\x88\xca\x24\x8e\x07\xa3"
        "\x9e\x7b\x94\x56\xe2\x9b\x3b\x9c\xae\x15\x70\xe1\xbc\x79\xb9\xe9\xd5"
        "\x30\xcf\x08\x43\x96\xad\x76\x6a\x61\x14\x9a\xa8\x08\x7e\x05\xa3\x4a"
        "\x8f\x87\x5b\xf8\xee\x71\xd2\x69\x01\x65\x54\xe7\x5a\xf5\x21\x38\x1f"
        "\xcf\xac\x8b\xab\xb0\x0b\xf3\xaa\x92\x81\xa4\x84\x2c\xad\xca\x00\x4d"
        "\xcb\x9f\x98\x39\x12\xbf\xcf\x7d\x43\xcf\x49\x00\x13\x5f\x14\x88\x29"
        "\x94\xbd\xf4\x57\x6b\xb7\x48\x15\x7f\x1a\x90\x7a\x8f\x53\x2c\x5c\x11"
        "\xd5\x7a\x19\xbd\xf1\x47\x11\xa5\xfd\xe7\x9d\xa8\x7e\xf8\xab\x13\x40"
        "\x61\xc3\x9a\xd7\xfe\xfc\xc8\xee\x99\x40\xd2\x69\x27\xd9\xdd\xcb\xe4"
        "\x9b\x08\xa5\x16\xb8\x86\x56\x1c\xef\x41\x3f\xac\xa7\x24\x4e\x0e\xcc"
        "\xaf\x1a\xac\x80\xa0\xa6\x2e\x3f\x77\xc0\x8c\x5d\x3c\x31\xad\x33\x9d"
        "\x7c\xa2\x84\x5a\x35\x1a\xb4\x2b\xda\x33\xda\x18\x5b\x40\x17\xdf\x44"
        "\xe3\xe8\x34\xef\xce\xd5\x7f\xc2\xee\x7d\xe6\x80\xe2\x0b\xe3\xe6\x96"
        "\xc8\x9a\x2a\x6c\x58\xc1\x3d\x42\xb6\xba\x07\xdf\x02\x38\xc4\xb7\x1a"
        "\xd4\x56\x62\x13\xcb\xbc\x1d\xc8\x6d\x37\xbd\x0b\x96\x42\x94\xed\x00"
        "\x90\x1b\x09\x20\x2d\x83\x29\xe5\xd6\x4d\xcb\xf1\x08\xc1\x18\x0e\x9a"
        "\xd1\xf8\xa9\xf4\x4e\x87\xcc\xd5\xe1\x70\x00\xd6\x68\x65\x66\x33\x49"
        "\xc4\x50\xe3\x3a\x12\xf5\xc2\x96\xc4\x44\xd8\xad\xc5\x71\xfe\x40\xaa"
        "\x78\xaf\xd8\x31\x5d\xdd\xa8\xef\xef\x4c\x39\x32\x88\x73\xde\x2f\x5e"
        "\x70\x8c\x24\x71\xf8\x93\x23\x33\x10\x99\x5c\x6d\xa4\xf9\xa2\x08\x8f"
        "\xee\x34\xe2\x58\xe5\xcf\xf4\x85\xec\xa7\xef\xdc\x87\xaa\x1e\xbd\xfd"
        "\xc3\x09\xc6\xeb\x97\x3b\x24\x8a\x65\x9c\x81\xdc\xb1\x8b\x40\x0b\xb7"
        "\x4f\x32\x47\xf2\x96\xd8\x17\x99\xb9\xcc\x31\xee\x84\x43\x5d\xb7\xf0"
        "\xd8\xc3\xfa\x81\x4b\x94\x06\x82\x71\xdc\x6a\x93\x1d\x0a\x52\xb6\x10"
        "\x58\x82\x45\xaf\x5c\x1b\xf2\x04\xe0\xe1\xc5\x5e\x0b\x72\xdb\x89\x69"
        "\x8d\x65\xd8\x0b\x13\xf6\x2a\xf6\x49\x33\x8c\xcf\x6a\x15\x8b\x9e\x9a"
        "\xba\x3f\xd0\x3b\x9e\x19\xad\x76\xf6\x9a\xaf\xb4\xb1\x25\xd6\xba\x86"
        "\xd6\xbc\xf5\x04\x7c\xf3\xe4\xa2\x4a\xe1\xd6\x9c\xf2\xe7\xfe\xe3\x3e"
        "\x34\x2c\x69\x1a\x24\xfd\xc5\x11\x9b\x47\x8b\x24\xbd\xac\x06\xeb\x8d"
        "\x58\xc2\x62\x6d\xb6\x00\x71\x81\x8b\xf5\xef\x89\x0b\x61\xfe\xdf\xa9"
        "\x6a\xd6\xe7\x8d\x99\x35\xc8\x09\xfc\xae\xcb\x6e\xf4\x89\x1b\xf8\xd7"
        "\x10\xdb\x70\x53\xbb\xe7\x01\x2d\xb4\xb3\x05\xb3\xa5\x08\xf2\xcd\x94"
        "\x71\xd2\x1e\x5e\x21\x46\x7e\xbc\xf9\x37\xa6\xc7\x52\xd8\xf6\x46\xbe"
        "\xaf\x0f\x6c\x4a\xa4\x23\x16\xb2\x51\x80\x93\xbc\x71\x69\x96\x56\x43"
        "\x19\x7d\x0c\x62\x95\x0f\xa7\x41\x37\x3a\xac\xd7\x14\xd8\x2d\x4a\x0d"
        "\x1d\x2a\x55\xc1\x91\x8f\xa0\x86\x3d\xff\x1e\x3d\xd1\x2a\x68\x70\x11"
        "\xc1\x12\x8b\xb5\xe6\x3f\x58\xbe\xaa\x7b\xaf\x92\x7a\x03\x3f\x75\xa0"
        "\x99\xfe\xa6\x75\x00\x08\x1d\xe1\x03\x1f\x85\x56\x0c\x81\x93\x84\xa1"
        "\x64\xc6\x9c\xa8\x07\x30\x81\x1f\x17\xbf\x70\x7c\x7d\x0c\x9f\x56\xa6"
        "\x61\xab\x2d\xfc\xe6\xa0\x7c\x61\x77\x92\x15\x89\x63\xca\x96\xfd\x67"
        "\x1b\x4c\x2d\xd7\x30\x00\x9f\x1e\xb1\xab\xe1\x12\x2a\xaa\x0b\x15\x9c"
        "\x29\x5d\xe2\x1b\xda\x5d\xf6\x3e\x56\x5e\xbc\xb6\x64\x27\x0a\xe3\x0a"
        "\x52\x03\x55\x50\x55\x2e\x94\x3d\xca\x22\xf6\xc0\x89\x2c\x3e\x93\xab"
        "\xcd\xe8\x61\xf2\xec\x19\x9b\x63\x9a\xf6\xf5\x16\xfd\xb5\x81\xd5\xe2"
        "\x3b\xfc\x1b\x03\x5b\xf7\x67\xec\xea\x78\x12\x6f\xbf\xc6\x51\x1c\xa4"
        "\x13\xae\xdf\x51\xae\xf6\xac\x19\xa5\xda\x04\xbc\x38\x26\x0e\x7f\x7f"
        "\x4f\x99\x16\x5f\x4e\x26\x92\x05\x3a\xaa\xe1\x68\xeb\x96\x0d\x76\x2d"
        "\xf1\xc5\x06\x4b\x87\x96\xff\x5c\x6d\xcc\x93\x4a\x96\x8d\x3c\xe2\x9b"
        "\x6a\xf0\x95\x0d\xdc\x07\xc7\x60\xc7\xdc\x1e\x3d\x90\xec\x02\x63\x9e"
        "\x80\xed\x51\x23\x04\xab\x03\x18\xea\x16\x38\xad\x91\xc8\xcb\xa9\x22"
        "\xff\x36\x45\x79\x99\x52\x1a\x3e\x84\xcc\x27\xac\x68\x2f\xe1\x4e\x78"
        "\x91\x46\x0f\x2c\x0e\x5c\x80\xa9\x48\x56\x0e\xb8\x0e\xc9\xd3\x5d\xbe"
        "\x98\x8d\xe8\x6d\x25\xe7\x16\xc1\x24\x11\xaf\xf9\x56\xcb\xe6\x79\x88"
        "\x95\x5b\x95\x6a\xb9\xd8\xb5\xe2\x52\x01\x5f\x30\xce\xbc\x59\xc4\xe1"
        "\x7f\x0d\xb5\x8c\xf5\x40\x62\x09\x92\xf6\xee\xce\xec\x0a\x30\x10\x4f"
        "\x39\x85\xde\x3d\x95\x42\x0d\x21\x5a\x19\x9a\xa4\x78\x97\xad\xee\xe2"
        "\x36\x10\xd2\x1a\x7f\x20\xdc\x27\xc8\xd0\x69\xdf\xd6\x33\x71\xf6\xac"
        "\xd8\x4e\xe7\x48\xb7\x5b\x39\xa8\xc9\x96\x6a\x74\x05\x96\x6f\xfd\x79"
        "\xe3\x69\x9c\x0f\x1c\x87\x1d\x19\x81\x28\xda\xe7\x99\x4d\x26\xbf\xde"
        "\x40\xd4\x6a\xd2\xcf\x56\xad\xb9\x6e\xec\xad\x05\x6f\x80\xfa\x31\x31"
        "\xfd\x2d\x00\xfc\xe5\x21\x55\x72\x5e\xc5\x02\x7c\xfd\x24\x9e\x5d\x30"
        "\x9a\x3e\xa5\x29\x85\x3b\xc6\x17\x2e\x31\x78\x9e\x77\x78\xf6\x49\x1d"
        "\x98\xfd\x10\x0c\xf9\xfe\xda\x43\x2a\x10\x64\x67\x3f\xa7\x8c\x12\xf2"
        "\x20\xd6\x67\x50\x2d\x5e\x32\xf2\x43\x6b\xaf\xd2\x7e\xc2\xf7\x57\x07"
        "\x99\x2f\x01\x30\x54\x67\x2c\x85\x0d\xce\xc8\xab\x96\x53\x4f\x70\x1a"
        "\x9e\xf2\x6e\xdd\x19\xf4\x35\x0e\x7a\xe9\xf5\xe1\x18\x68\xaf\x59\x43"
        "\x57\xc8\x3f\x41\x28\x65\xc1\x0f\xc7\x9f\xc4\xfe\xbd\x43\xa0\x35\x09"
        "\x5f\x93\x74\xc4\xe0\x14\x10\x26\xb1\x3a\x24\xa2\x2a\xe1\xe7\x32\x7e"
        "\x05\x16\x4a\xe2\xa5\xcc\xae\x68\x99\x1b\x57\x6e\xa8\x65\x38\x30\x1e"
        "\xac\xab\x0d\xe7\xeb\x4c\x95\x27\x4b\xe9\x58\xa3\x49\x4b\xc8\xbb\x5a"
        "\xf0\x27\x4e\xed\xc6\xa1\x18\x77\xe1\xc0\x40\xfc\xeb\x17\x5f\xf2\xa1"
        "\xde\xda\x0b\x1c\x3c\xb4\x7f\xdf\x4b\xc3\x8a\xac\x66\x8b\x23\x62\xd5"
        "\x22\x8e\xcf\x7c\x95\x2e\xb2\x57\x2a\x07\x46\x09\x78\xd5\xd9\xe6\xf7"
        "\xb4\xf5\x2f\xea\x67\x3d\xb2\x46\x29\x5d\x1b\x0c\xd9\xcc\x33\x17\x04"
        "\xaa\x64\x89\xb4\xce\x8c\x03\x9b\x25\x20\x7e\x80\x49\x44\x7a\x22\xa5"
        "\x7e\xbc\x35\xe1\x65\xe4\xe0\x10\x83\x04\xea\x14\x21\xbc\xae\xd2\x61"
        "\x32\x9d\x4c\xb2\xa7\xc7\x34\x80\x1d\x69\xdb\x9e\xa5\x5a\x07\xba\x37"
        "\x8e\x90\x7c\xfb\x87\x42\xf1\x2b\x3f\x38\x15\x83\xf1\x7a\xce\x46\x9f"
        "\x4c\x2d\x3a\xdb\x2f\xf0\xbe\x64\x6f\x69\xa4\x0f\x35\x27\x08\x7e\xff"
        "\x0c\xbc\x3a\x02\x46\x22\x74\x30\xa7\xc5\x41\x91\x0d\x7b\xde\xfb\xb3"
        "\xff\x00\x1b\xeb\xa9\x67\xd6\xeb\x4b\x5f\xeb\x6c\xbf\x44\x33\xa1\x1f"
        "\x11\x4b\x0b\x13\xb7\x1d\xb1\x6e\x35\x88\x68\x74\x30\xb2\x7e\x0e",
        4096));
    NONFAILING(*(uint16_t*)0x20001304 = 0x1000);
    syscall(__NR_write, r[0], 0x20000300ul, 0x1006ul);
    break;
  }
}
int main(void)
{
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x32ul, -1, 0);
  install_segv_handler();
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      loop();
    }
  }
  sleep(1000000);
  return 0;
}