// https://syzkaller.appspot.com/bug?id=f40de3a81b1bd1913bee1cc60e71d6f913eb6b03
// 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 <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.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>
#include <linux/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

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 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 = 0;
  for (; 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_ACQUIRE))
      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;
}

//% This code is derived from puff.{c,h}, found in the zlib development. The
//% original files come with the following copyright notice:

//% Copyright (C) 2002-2013 Mark Adler, all rights reserved
//% version 2.3, 21 Jan 2013
//% This software is provided 'as-is', without any express or implied
//% warranty.  In no event will the author be held liable for any damages
//% arising from the use of this software.
//% Permission is granted to anyone to use this software for any purpose,
//% including commercial applications, and to alter it and redistribute it
//% freely, subject to the following restrictions:
//% 1. The origin of this software must not be misrepresented; you must not
//%    claim that you wrote the original software. If you use this software
//%    in a product, an acknowledgment in the product documentation would be
//%    appreciated but is not required.
//% 2. Altered source versions must be plainly marked as such, and must not be
//%    misrepresented as being the original software.
//% 3. This notice may not be removed or altered from any source distribution.
//% Mark Adler    madler@alumni.caltech.edu

//% BEGIN CODE DERIVED FROM puff.{c,h}

#define MAXBITS 15
#define MAXLCODES 286
#define MAXDCODES 30
#define MAXCODES (MAXLCODES + MAXDCODES)
#define FIXLCODES 288

struct puff_state {
  unsigned char* out;
  unsigned long outlen;
  unsigned long outcnt;
  const unsigned char* in;
  unsigned long inlen;
  unsigned long incnt;
  int bitbuf;
  int bitcnt;
  jmp_buf env;
};
static int puff_bits(struct puff_state* s, int need)
{
  long val = s->bitbuf;
  while (s->bitcnt < need) {
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    val |= (long)(s->in[s->incnt++]) << s->bitcnt;
    s->bitcnt += 8;
  }
  s->bitbuf = (int)(val >> need);
  s->bitcnt -= need;
  return (int)(val & ((1L << need) - 1));
}
static int puff_stored(struct puff_state* s)
{
  s->bitbuf = 0;
  s->bitcnt = 0;
  if (s->incnt + 4 > s->inlen)
    return 2;
  unsigned len = s->in[s->incnt++];
  len |= s->in[s->incnt++] << 8;
  if (s->in[s->incnt++] != (~len & 0xff) ||
      s->in[s->incnt++] != ((~len >> 8) & 0xff))
    return -2;
  if (s->incnt + len > s->inlen)
    return 2;
  if (s->outcnt + len > s->outlen)
    return 1;
  for (; len--; s->outcnt++, s->incnt++) {
    if (s->in[s->incnt])
      s->out[s->outcnt] = s->in[s->incnt];
  }
  return 0;
}
struct puff_huffman {
  short* count;
  short* symbol;
};
static int puff_decode(struct puff_state* s, const struct puff_huffman* h)
{
  int first = 0;
  int index = 0;
  int bitbuf = s->bitbuf;
  int left = s->bitcnt;
  int code = first = index = 0;
  int len = 1;
  short* next = h->count + 1;
  while (1) {
    while (left--) {
      code |= bitbuf & 1;
      bitbuf >>= 1;
      int count = *next++;
      if (code - count < first) {
        s->bitbuf = bitbuf;
        s->bitcnt = (s->bitcnt - len) & 7;
        return h->symbol[index + (code - first)];
      }
      index += count;
      first += count;
      first <<= 1;
      code <<= 1;
      len++;
    }
    left = (MAXBITS + 1) - len;
    if (left == 0)
      break;
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    bitbuf = s->in[s->incnt++];
    if (left > 8)
      left = 8;
  }
  return -10;
}
static int puff_construct(struct puff_huffman* h, const short* length, int n)
{
  int len;
  for (len = 0; len <= MAXBITS; len++)
    h->count[len] = 0;
  int symbol;
  for (symbol = 0; symbol < n; symbol++)
    (h->count[length[symbol]])++;
  if (h->count[0] == n)
    return 0;
  int left = 1;
  for (len = 1; len <= MAXBITS; len++) {
    left <<= 1;
    left -= h->count[len];
    if (left < 0)
      return left;
  }
  short offs[MAXBITS + 1];
  offs[1] = 0;
  for (len = 1; len < MAXBITS; len++)
    offs[len + 1] = offs[len] + h->count[len];
  for (symbol = 0; symbol < n; symbol++)
    if (length[symbol] != 0)
      h->symbol[offs[length[symbol]]++] = symbol;
  return left;
}
static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode,
                      const struct puff_huffman* distcode)
{
  static const short lens[29] = {3,  4,  5,  6,   7,   8,   9,   10,  11, 13,
                                 15, 17, 19, 23,  27,  31,  35,  43,  51, 59,
                                 67, 83, 99, 115, 131, 163, 195, 227, 258};
  static const short lext[29] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2,
                                 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};
  static const short dists[30] = {
      1,    2,    3,    4,    5,    7,    9,    13,    17,    25,
      33,   49,   65,   97,   129,  193,  257,  385,   513,   769,
      1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577};
  static const short dext[30] = {0, 0, 0,  0,  1,  1,  2,  2,  3,  3,
                                 4, 4, 5,  5,  6,  6,  7,  7,  8,  8,
                                 9, 9, 10, 10, 11, 11, 12, 12, 13, 13};
  int symbol;
  do {
    symbol = puff_decode(s, lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 256) {
      if (s->outcnt == s->outlen)
        return 1;
      if (symbol)
        s->out[s->outcnt] = symbol;
      s->outcnt++;
    } else if (symbol > 256) {
      symbol -= 257;
      if (symbol >= 29)
        return -10;
      int len = lens[symbol] + puff_bits(s, lext[symbol]);
      symbol = puff_decode(s, distcode);
      if (symbol < 0)
        return symbol;
      unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]);
      if (dist > s->outcnt)
        return -11;
      if (s->outcnt + len > s->outlen)
        return 1;
      while (len--) {
        if (dist <= s->outcnt && s->out[s->outcnt - dist])
          s->out[s->outcnt] = s->out[s->outcnt - dist];
        s->outcnt++;
      }
    }
  } while (symbol != 256);
  return 0;
}
static int puff_fixed(struct puff_state* s)
{
  static int virgin = 1;
  static short lencnt[MAXBITS + 1], lensym[FIXLCODES];
  static short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  static struct puff_huffman lencode, distcode;
  if (virgin) {
    lencode.count = lencnt;
    lencode.symbol = lensym;
    distcode.count = distcnt;
    distcode.symbol = distsym;
    short lengths[FIXLCODES];
    int symbol;
    for (symbol = 0; symbol < 144; symbol++)
      lengths[symbol] = 8;
    for (; symbol < 256; symbol++)
      lengths[symbol] = 9;
    for (; symbol < 280; symbol++)
      lengths[symbol] = 7;
    for (; symbol < FIXLCODES; symbol++)
      lengths[symbol] = 8;
    puff_construct(&lencode, lengths, FIXLCODES);
    for (symbol = 0; symbol < MAXDCODES; symbol++)
      lengths[symbol] = 5;
    puff_construct(&distcode, lengths, MAXDCODES);
    virgin = 0;
  }
  return puff_codes(s, &lencode, &distcode);
}
static int puff_dynamic(struct puff_state* s)
{
  static const short order[19] = {16, 17, 18, 0, 8,  7, 9,  6, 10, 5,
                                  11, 4,  12, 3, 13, 2, 14, 1, 15};
  int nlen = puff_bits(s, 5) + 257;
  int ndist = puff_bits(s, 5) + 1;
  int ncode = puff_bits(s, 4) + 4;
  if (nlen > MAXLCODES || ndist > MAXDCODES)
    return -3;
  short lengths[MAXCODES];
  int index;
  for (index = 0; index < ncode; index++)
    lengths[order[index]] = puff_bits(s, 3);
  for (; index < 19; index++)
    lengths[order[index]] = 0;
  short lencnt[MAXBITS + 1], lensym[MAXLCODES];
  struct puff_huffman lencode = {lencnt, lensym};
  int err = puff_construct(&lencode, lengths, 19);
  if (err != 0)
    return -4;
  index = 0;
  while (index < nlen + ndist) {
    int symbol;
    int len;
    symbol = puff_decode(s, &lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 16)
      lengths[index++] = symbol;
    else {
      len = 0;
      if (symbol == 16) {
        if (index == 0)
          return -5;
        len = lengths[index - 1];
        symbol = 3 + puff_bits(s, 2);
      } else if (symbol == 17)
        symbol = 3 + puff_bits(s, 3);
      else
        symbol = 11 + puff_bits(s, 7);
      if (index + symbol > nlen + ndist)
        return -6;
      while (symbol--)
        lengths[index++] = len;
    }
  }
  if (lengths[256] == 0)
    return -9;
  err = puff_construct(&lencode, lengths, nlen);
  if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1]))
    return -7;
  short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  struct puff_huffman distcode = {distcnt, distsym};
  err = puff_construct(&distcode, lengths + nlen, ndist);
  if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1]))
    return -8;
  return puff_codes(s, &lencode, &distcode);
}
static int puff(unsigned char* dest, unsigned long* destlen,
                const unsigned char* source, unsigned long sourcelen)
{
  struct puff_state s = {
      .out = dest,
      .outlen = *destlen,
      .outcnt = 0,
      .in = source,
      .inlen = sourcelen,
      .incnt = 0,
      .bitbuf = 0,
      .bitcnt = 0,
  };
  int err;
  if (setjmp(s.env) != 0)
    err = 2;
  else {
    int last;
    do {
      last = puff_bits(&s, 1);
      int type = puff_bits(&s, 2);
      err = type == 0 ? puff_stored(&s)
                      : (type == 1 ? puff_fixed(&s)
                                   : (type == 2 ? puff_dynamic(&s) : -1));
      if (err != 0)
        break;
    } while (!last);
  }
  *destlen = s.outcnt;
  return err;
}

//% END CODE DERIVED FROM puff.{c,h}

#define ZLIB_HEADER_WIDTH 2

static int puff_zlib_to_file(const unsigned char* source,
                             unsigned long sourcelen, int dest_fd)
{
  if (sourcelen < ZLIB_HEADER_WIDTH)
    return 0;
  source += ZLIB_HEADER_WIDTH;
  sourcelen -= ZLIB_HEADER_WIDTH;
  const unsigned long max_destlen = 132 << 20;
  void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ,
                   MAP_PRIVATE | MAP_ANON, -1, 0);
  if (ret == MAP_FAILED)
    return -1;
  unsigned char* dest = (unsigned char*)ret;
  unsigned long destlen = max_destlen;
  int err = puff(dest, &destlen, source, sourcelen);
  if (err) {
    munmap(dest, max_destlen);
    errno = -err;
    return -1;
  }
  if (write(dest_fd, dest, destlen) != (ssize_t)destlen) {
    munmap(dest, max_destlen);
    return -1;
  }
  return munmap(dest, destlen);
}

static int setup_loop_device(unsigned char* data, unsigned long size,
                             const char* loopname, int* loopfd_p)
{
  int err = 0, loopfd = -1;
  int memfd = syscall(__NR_memfd_create, "syzkaller", 0);
  if (memfd == -1) {
    err = errno;
    goto error;
  }
  if (puff_zlib_to_file(data, size, memfd)) {
    err = errno;
    goto error_close_memfd;
  }
  loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    err = errno;
    goto error_close_memfd;
  }
  if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
    if (errno != EBUSY) {
      err = errno;
      goto error_close_loop;
    }
    ioctl(loopfd, LOOP_CLR_FD, 0);
    usleep(1000);
    if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
      err = errno;
      goto error_close_loop;
    }
  }
  close(memfd);
  *loopfd_p = loopfd;
  return 0;

error_close_loop:
  close(loopfd);
error_close_memfd:
  close(memfd);
error:
  errno = err;
  return -1;
}

static long syz_mount_image(volatile long fsarg, volatile long dir,
                            volatile long flags, volatile long optsarg,
                            volatile long change_dir,
                            volatile unsigned long size, volatile long image)
{
  unsigned char* data = (unsigned char*)image;
  int res = -1, err = 0, loopfd = -1, need_loop_device = !!size;
  char* mount_opts = (char*)optsarg;
  char* target = (char*)dir;
  char* fs = (char*)fsarg;
  char* source = NULL;
  char loopname[64];
  if (need_loop_device) {
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    source = loopname;
  }
  mkdir(target, 0777);
  char opts[256];
  memset(opts, 0, sizeof(opts));
  if (strlen(mount_opts) > (sizeof(opts) - 32)) {
  }
  strncpy(opts, mount_opts, sizeof(opts) - 32);
  if (strcmp(fs, "iso9660") == 0) {
    flags |= MS_RDONLY;
  } else if (strncmp(fs, "ext", 3) == 0) {
    bool has_remount_ro = false;
    char* remount_ro_start = strstr(opts, "errors=remount-ro");
    if (remount_ro_start != NULL) {
      char after = *(remount_ro_start + strlen("errors=remount-ro"));
      char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1);
      has_remount_ro = ((before == '\0' || before == ',') &&
                        (after == '\0' || after == ','));
    }
    if (strstr(opts, "errors=panic") || !has_remount_ro)
      strcat(opts, ",errors=continue");
  } else if (strcmp(fs, "xfs") == 0) {
    strcat(opts, ",nouuid");
  }
  res = mount(source, target, fs, flags, opts);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  res = open(target, O_RDONLY | O_DIRECTORY);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  if (change_dir) {
    res = chdir(target);
    if (res == -1) {
      err = errno;
    }
  }

error_clear_loop:
  if (need_loop_device) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
  errno = err;
  return res;
}

#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  int iter = 0;
  DIR* dp = 0;
retry:
  while (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW) == 0) {
  }
  dp = opendir(dir);
  if (dp == NULL) {
    if (errno == EMFILE) {
      exit(1);
    }
    exit(1);
  }
  struct dirent* ep = 0;
  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 | UMOUNT_NOFOLLOW) == 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 | UMOUNT_NOFOLLOW))
        exit(1);
    }
  }
  closedir(dp);
  for (int 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 | UMOUNT_NOFOLLOW))
          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);
  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 reset_loop()
{
  char buf[64];
  snprintf(buf, sizeof(buf), "/dev/loop%llu", procid);
  int loopfd = open(buf, O_RDWR);
  if (loopfd != -1) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
}

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

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;
  for (call = 0; call < 5; 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);
      event_timedwait(&th->done, 50 + (call == 0 ? 4000 : 0));
      break;
    }
  }
  for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
    sleep_ms(1);
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    char cwdbuf[32];
    sprintf(cwdbuf, "./%d", iter);
    if (mkdir(cwdbuf, 0777))
      exit(1);
    reset_loop();
    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 < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
    remove_dir(cwdbuf);
  }
}

uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    memcpy((void*)0x20000040, "udf\000", 4);
    memcpy((void*)0x200001c0, "./file2\000", 8);
    memcpy(
        (void*)0x200004c0,
        "\x78\x9c\xec\xdd\x5f\x6c\x64\xd7\x5d\x07\xf0\xdf\xb9\xb6\xd7\xf6\xa6"
        "\xb0\x6e\x93\x6c\x13\x68\xd0\x14\x50\xd9\xb8\xd9\xb0\xff\x1a\x6f\xb3"
        "\x28\xcc\x12\xc7\x50\x69\xb3\xb1\xea\x75\xdf\x2a\x79\xd6\x9e\x5d\xac"
        "\x78\x6d\x63\x7b\xe9\x26\x2a\xc8\x45\x48\x3c\xf0\x50\x09\x21\x84\xfa"
        "\x64\x09\x22\xa4\x56\x54\x11\x45\x15\x12\x3c\x18\x08\x52\xfb\x40\x1e"
        "\x50\x9f\x78\xb2\x40\x09\x55\xc5\x83\x41\x95\xfa\x54\xb9\xba\x77\xce"
        "\xd8\x63\xaf\x37\xbb\x89\xd7\xbb\x76\xf2\xf9\x24\xb3\xdf\x99\x33\xe7"
        "\xdc\x39\xe7\xde\xc9\xbd\x1b\xcb\xe7\x9e\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\x22\x7e\xeb\xa5\x8b\xa7\x4e\xa7\x87"
        "\xdd\x0b\x00\xe0\x41\xba\x3c\xf6\xc5\x53\x67\x5c\xff\x01\xe0\x23\xe5"
        "\x8a\xff\xff\x07\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x83\x2e"
        "\x45\x11\x8f\x46\x8a\xf9\xcb\xeb\x69\xa2\x7a\xdd\xd2\x77\x69\x7a\xf6"
        "\xe6\xad\xf1\xe1\x91\xdd\x9b\xf5\xa7\xaa\x65\x57\x55\xbf\x7c\xf4\x9d"
        "\x3e\x73\xf6\xdc\xe7\x9e\x1b\x3a\xdf\xce\xf7\x6e\x7f\xbf\x3d\x19\xaf"
        "\x8c\x5d\xb9\x58\x7b\x71\xee\xc6\xfc\x42\x73\x71\xb1\x39\x55\x1b\x9f"
        "\x9d\x9e\x9c\x9b\x6a\xde\xf3\x16\xf6\xda\x7e\xa7\xc1\x6a\x07\xd4\x6e"
        "\xbc\x7a\x73\xea\xda\xb5\xc5\xda\x99\x67\xcf\x6e\x7b\xfb\xd6\xc0\xbb"
        "\xbd\x8f\x1c\x1f\xb8\x30\xf4\xf4\xc9\xa7\xda\x75\xc7\x87\x47\x46\xc6"
        "\x3a\xea\x74\xf7\x7c\xe0\x4f\xbf\xcd\x9d\x66\x78\x1c\x89\x22\x4e\x46"
        "\x8a\x67\xbe\xfd\xc3\xd4\x88\x88\x22\xf6\xbe\x2f\xee\xf2\xdd\xd9\x6f"
        "\xfd\xd5\x20\x06\xab\x41\x8c\x0f\x8f\x54\x03\x99\x99\x6e\xcc\x2e\x95"
        "\x6f\x8e\xb6\x77\x44\x11\x51\xeb\x68\x54\x6f\xef\xa3\x07\x70\x2c\xf6"
        "\xa4\x1e\xb1\x5c\x76\xbf\xec\xf0\x60\x39\xbc\xb1\xf9\xc6\x42\xe3\xea"
        "\x4c\xb3\x36\xda\x58\x58\x9a\x5e\x9a\x9e\x9b\x1d\x4d\xad\xde\x96\xe3"
        "\xa9\x45\x11\xe7\x53\xc4\x4a\x44\xac\xf5\xde\xbe\xb9\x9e\x28\xa2\x3b"
        "\x52\x7c\xe3\xd8\x7a\xba\x1a\x11\x5d\xed\xfd\xf0\xd9\x6a\x62\xf0\x9d"
        "\xfb\x51\xec\xe3\x18\xef\x41\xd9\xcf\x5a\x4f\xc4\x4a\x71\x08\x8e\xd9"
        "\x01\xd6\x1b\x45\xbc\x1c\x29\x7e\xfc\xd6\x89\x98\x2c\xf7\x59\xf9\xf8"
        "\x58\x44\x7c\x26\xe2\xe5\xb2\xc2\x77\x23\xde\x28\xf3\x85\x88\x54\x7e"
        "\x31\xce\x45\xbc\xb3\xcb\xf7\x88\xc3\xa9\x3b\x8a\xf8\xd3\xf2\xf8\x5f"
        "\x58\x4f\x53\xd5\xf9\xa0\x7d\x5e\xb9\xf4\xa5\xda\x17\x66\xaf\xcd\x75"
        "\xd4\x6d\x9f\x57\x0e\xfd\xf5\xe1\x41\x3a\xe0\xe7\xa6\xbe\x28\xa2\x51"
        "\x9d\xf1\xd7\xd3\x07\xff\xcb\x0e\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\xf7\x5b\x7f\x14\xf1\x64\xa4\x78\xe9\x3f\x7e\xbf\x9a"
        "\x57\x1c\xd5\xbc\xf4\x63\x17\x86\x7e\x7b\xe0\xe7\x3a\xe7\x8c\x3f\x71"
        "\x97\xed\x94\x75\x9f\x8d\x88\xe5\xe2\xde\xe6\xe4\x1e\xc9\x53\x88\x47"
        "\xd3\x68\x4a\x0f\x79\x2e\xf1\x47\x59\x5f\x14\xf1\x07\x79\xfe\xdf\xd7"
        "\x1e\x76\x67\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x3e\xd2\x8a\xf8\x41\xa4\x78\xfe\xed\x13\x69\x25\x3a\xd7\x14\x9f"
        "\x9e\xbd\x5e\xbb\xd2\xb8\x3a\xd3\x5a\x15\xb6\xbd\xf6\x6f\x7b\xcd\xf4"
        "\x8d\x8d\x8d\x8d\x5a\x6a\x65\x3d\xe7\x44\xce\xe5\x9c\x2b\x39\x57\x73"
        "\xae\xe5\x8c\x22\xb7\xcf\x59\xcf\x39\x91\x73\x39\xe7\x4a\xce\xd5\x9c"
        "\x6b\x39\xa3\x2b\xb7\xcf\x59\xcf\x39\x51\xe5\x56\xff\x56\x72\xf9\x6a"
        "\xce\xb5\x9c\xd1\x9d\xdb\xe7\xac\xe7\x9c\xc8\xb9\x9c\x73\x25\xe7\x6a"
        "\xce\xb5\x9c\x71\x40\xd6\xee\x05\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\xf8\x30\x29\xa2\x88\x9f\x46\x8a\xaf\x7f\x65\x3d\x45\x8a"
        "\x88\x7a\xc4\x44\xb4\x72\xb5\xf7\x61\xf7\x0e\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\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\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"
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        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
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        "\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\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\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\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\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\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\x28\xf5\xa6\x22\xbe\x13\x29\x6a\xbf\x53"
        "\xdf\x2c\xeb\x8e\x88\x54\xfd\xdb\x72\xa2\xfc\xe3\x5c\xd4\x8f\x94\xf9"
        "\x89\xa8\x0f\x95\xf9\x42\xd4\x2f\xe6\x6c\x54\xd9\x5d\xff\xda\x43\xe8"
        "\x3f\x7b\xd3\x93\x8a\xf8\x7e\xa4\xe8\xed\x7b\x73\xf3\x80\xe7\xe3\xdf"
        "\xd3\x7a\xb5\xf9\x35\x88\x37\xbe\xba\xf5\xea\x17\xba\x5b\xd9\xd5\x7e"
        "\x73\xe0\xdd\xde\x47\x8e\x1f\xbb\x30\x34\xf2\x4b\x4f\xdc\xe9\x79\xda"
        "\xad\x03\x83\x97\xa6\x67\x6f\xde\xaa\x8d\x0f\x8f\x8c\x8c\x75\x14\x77"
        "\xe7\x4f\xff\x44\x47\xd9\x40\xfe\xdc\xe2\xfe\x0c\x9d\x88\x58\x7c\xed"
        "\xf5\x57\x1b\x33\x33\xcd\x05\x4f\x3c\xf1\xe4\xfe\x3d\xc9\xe7\xc7\x38"
        "\x28\xfd\x79\xdf\x4f\x1e\xf2\x89\x89\x07\xa2\xbc\xfe\xbf\x13\x29\x7e"
        "\xfd\xed\xff\x6c\x5f\xf0\xdb\xd7\xff\x8f\xb5\x5e\x6d\x5e\xe1\xe3\x27"
        "\x7f\xb8\x75\xfd\x7f\x7e\xe7\x86\xf6\xe9\xfa\xff\x68\x47\xd9\xf3\xf9"
        "\x6f\x23\x3d\xdd\x11\x7d\x4b\x37\xe6\x7b\x8e\x47\xf4\x2d\xbe\xf6\xfa"
        "\xc9\xe9\x1b\x8d\xeb\xcd\xeb\xcd\xd9\x73\xa7\x4e\x7d\x7e\x68\xe8\xf3"
        "\x67\x4f\xf5\x1c\x89\xe8\xbb\x36\x3d\xd3\xec\x78\xb6\xe7\x5d\x05\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf0\x60\xa5\x22\x7e\x33"
        "\x52\x34\xbe\xbf\x9e\x6a\x11\x71\xab\x9a\xaf\x35\x70\x61\xe8\xe9\x93"
        "\x4f\x75\x45\x57\x35\xdf\x6a\xdb\xbc\xad\x57\xc6\xae\x5c\xac\xbd\x38"
        "\x77\x63\x7e\xa1\xb9\xb8\xd8\x9c\xaa\x8d\xcf\x4e\x4f\xce\x4d\x35\xef"
        "\xf5\xe3\xfa\xaa\xe9\x5e\xe3\xc3\x23\xfb\x32\x98\xbb\xea\xdf\xe7\xfe"
        "\xf7\xf7\xbd\x38\x37\xff\xda\xc2\xf4\xf5\xdf\x5d\xda\xf5\xfd\xa3\x7d"
        "\x17\xaf\x2e\x2e\x2d\x34\x26\x77\x7f\x3b\xfa\xa3\x88\xa8\x77\x96\x0c"
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        "\xee\xfd\xeb\x49\x45\xfc\x57\xa4\x98\x3c\x57\x4b\x9f\xce\x65\x79\xfe"
        "\xdf\xce\x19\xfe\xdb\xe6\xff\x2f\xef\xdc\xd0\x6e\x73\xfe\xfe\x7d\xef"
        "\xf3\xff\x3e\xde\x51\x56\x7e\x66\x4a\x45\xfc\x24\x52\xfc\xda\x9f\x3d"
        "\x11\x9f\xae\xfa\x79\x34\x6e\xdb\x67\xb9\xde\x5f\x47\x8a\xc1\xf3\x9f"
        "\xca\xf5\xe2\x48\x59\xaf\xdd\x87\xd6\x7d\x05\x5a\x33\x03\xcb\xba\xff"
        "\x17\x29\xfe\xee\xa7\xdb\xeb\xb6\xe7\x43\x3e\xba\x55\xf7\xf4\x3d\xef"
        "\xd8\x43\xa2\x3c\xfe\xc7\x22\xc5\x77\xfe\xe4\x9b\xf1\xcb\xb9\xac\x3b"
        "\xfe\xf2\x8f\xb7\xee\xff\xb0\xfb\xf1\x3f\xba\x73\x43\xfb\x34\xff\xf3"
        "\xb1\x8e\xb2\xa3\xdb\xee\x57\xb0\xe7\xa1\x93\x8f\xff\xc9\x48\xf1\xc2"
        "\xa3\x6f\xc6\xaf\xe4\xb2\x9d\xf7\xff\xe8\xcf\xe5\xe5\xf1\x6f\xdf\x7b"
        "\xe3\x44\xae\xbc\x79\x7f\x8e\x7d\x3a\xfe\x8f\x77\x94\x0d\xe4\xcf\xfd"
        "\xd5\xfb\x35\x78\x00\x00\x00\x00\x00\x00\x00\x00\x80\x43\xac\x27\x15"
        "\xf1\x37\x91\xe2\xa9\x91\xee\xf4\x5c\x2e\xdb\xfe\xfb\x5f\xbb\xff\xfe"
        "\xdf\xd4\xce\x0d\xed\xd3\xef\x7f\x7d\xb2\xa3\x6c\xea\x01\xad\x57\xb4"
        "\xe7\x9d\x0a\x00\x00\x00\x00\x07\x44\x4f\x2a\xe2\x07\x91\xe2\xfa\xd2"
        "\x9b\x9b\x73\xa8\xb7\xcf\xff\xee\x58\xff\xfd\x37\xb6\xe6\x7f\x0e\xa7"
        "\x1d\xef\x56\x3f\xe7\xfb\xf9\xea\xbe\x01\xf7\xf3\xe7\x7f\x9d\x06\xf2"
        "\xe7\x4e\xec\x7d\xd8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x70\xa0\xa4\x54\xc4\x73\x79\x3d\xf5\x89\xbb\xac\xa7\xbe"
        "\x1a\x29\x5e\xfa\xd1\x33\xb9\x5e\x3a\x5e\xd6\x6b\xaf\x03\x3f\x50\xfd"
        "\xd9\x77\x79\x6e\xf6\xe4\xc5\x99\x99\xb9\xc9\xc6\x52\xe3\xea\x4c\xb3"
        "\x36\x36\xdf\x98\x6c\x96\x6d\x1f\x8b\x14\xeb\x7f\xf5\xa9\xdc\xb6\xa8"
        "\xd6\x57\x6f\xaf\x37\xdf\x5a\xe3\x7d\x6b\x2d\xf6\x85\x48\x31\xf2\xad"
        "\x76\xdd\x38\x12\xc5\xe3\x3f\x6a\xaf\x4d\xfe\xd8\x56\xdd\xd3\x65\xdd"
        "\x8f\x47\x8a\xff\xfe\xdb\xce\xba\xb1\xb9\x8e\xf5\xe3\x5b\x75\xcf\x94"
        "\x75\xff\x22\x52\x7c\xf9\x1f\x76\xaf\x7b\x7c\xab\xee\xd9\xb2\xee\x37"
        "\x23\xc5\xf7\xbe\x5c\x6b\xd7\x3d\x5a\xd6\x6d\xdf\x1f\xf5\x93\x5b\x75"
        "\x9f\x9d\x9c\x9b\xb9\xed\x56\xa8\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\xf0\x7e\xf5\xa4\x22\xfe\x28\x52\xfc\xef\x8d"
        "\x95\xcd\xb9\xfc\x79\xfd\xff\x9e\x8e\x97\x95\x37\xbe\xba\xb5\xde\xff"
        "\x3f\xed\x58\x9f\xff\x56\xb5\xce\xff\x40\xb5\xfe\xff\x9d\x9e\x7f\x90"
        "\xf5\xff\x07\xee\xe3\x58\x01\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\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\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\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\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"
        "\x00\x00\x00\xe0\xb0\x48\x51\xc4\xeb\x91\x62\xfe\xf2\x7a\x5a\xed\x2d"
        "\x5f\xb7\xf4\x5d\x9a\x9e\xbd\x79\x6b\x7c\x78\x64\xf7\x66\xfd\xa9\x6a"
        "\xd9\x55\xd5\x2f\x1f\x7d\xa7\xcf\x9c\x3d\xf7\xb9\xe7\x86\xce\xb7\xf3"
        "\xbd\xdb\xdf\x6f\x4f\xc6\x2b\x63\x57\x2e\xd6\x5e\x9c\xbb\x31\xbf\xd0"
        "\x5c\x5c\x6c\x4e\xd5\xc6\x67\xa7\x27\xe7\xa6\x9a\xf7\xbc\x85\xbd\xb6"
        "\xdf\x69\xb0\xda\x01\xb5\x1b\xaf\xde\x9c\xba\x76\x6d\xb1\x76\xe6\xd9"
        "\xb3\xdb\xde\xbe\x35\xf0\x6e\xef\x23\xc7\x07\x2e\x0c\x3d\x7d\xf2\xa9"
        "\x76\xdd\xf1\xe1\x91\x91\xb1\x8e\x3a\xdd\x3d\xdb\x37\xf9\xad\x0f\xdc"
        "\x99\xad\xe3\xba\xd3\x91\x28\xe2\xcf\x23\xc5\x33\xdf\xfe\x61\xfa\xe7"
        "\xde\x88\x22\xf6\xbe\x2f\xee\xf2\xdd\xd9\x6f\xfd\xd5\x20\x06\xab\x41"
        "\x8c\x0f\x8f\x54\x03\x99\x99\x6e\xcc\x2e\x95\x6f\x8e\xb6\x77\x44\x11"
        "\x51\xeb\x68\x54\x6f\xef\xa3\x7b\x3c\x16\x0f\x4d\x3d\x62\xb9\xec\x7e"
        "\xd9\xe1\xc1\x72\x78\x63\xf3\x8d\x85\xc6\xd5\x99\x66\x6d\xb4\xb1\xb0"
        "\x34\xfd\x8f\xcd\xb9\xd9\xd1\xd4\xea\x6d\x39\x9e\x5a\x14\x71\x3e\x45"
        "\xac\x44\xc4\x5a\xef\xed\x9b\xeb\x89\x22\x5e\x8d\x14\xdf\x38\xb6\x9e"
        "\xfe\xa5\x37\xa2\xab\xbd\x1f\x3e\x7b\x79\xec\x8b\xa7\xce\xdc\xb9\x1f"
        "\xc5\x3e\x8e\xf1\x1e\x94\xfd\xac\xf5\x44\xac\x14\x87\xe0\x98\x1d\x60"
        "\xbd\x51\xc4\xdf\x47\x8a\x1f\xbf\x75\x22\xfe\xb5\x37\xa2\x3b\x5a\x8f"
        "\xf8\x4c\xc4\xcb\x65\x7e\x37\xe2\x8d\x32\x5f\x88\x48\xe5\x17\xe3\x5c"
        "\xc4\x3b\xbb\x7c\x8f\x38\x9c\xba\xa3\x88\xff\x2f\x8f\xff\x85\xf5\xf4"
        "\x56\x6f\x79\x3e\x68\x9f\x57\x2e\x7d\xa9\xf6\x85\xd9\x6b\x73\x1d\x75"
        "\xdb\xe7\x95\x43\x7f\x7d\x78\x90\x3a\xce\x4d\xff\xf3\x7b\x5b\xc5\x07"
        "\xe5\xdc\xd4\x17\x45\x7c\xaf\x3a\xe3\xaf\xa7\x7f\xf3\xdf\x35\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\x01\x52\xc4\x2f\x46\x8a"
        "\xe7\xdf\x3e\x91\xaa\xf9\xc1\x9b\x73\x8a\xa7\x67\xaf\xd7\xae\x34\xae"
        "\xce\xb4\xa6\xf5\xb5\xe7\xfe\xb5\xe7\x4c\x6f\x6c\x6c\x6c\xd4\x52\x2b"
        "\xeb\x39\x27\x72\x2e\xe7\x5c\xc9\xb9\x9a\x73\x2d\x67\x14\xb9\x7d\xce"
        "\x7a\xce\x89\x9c\xcb\x39\x57\x72\xae\xe6\x5c\xcb\x19\x5d\xb9\x7d\xce"
        "\x7a\xce\x23\xb9\x6f\xcb\xf9\xf5\x4a\xce\xd5\x9c\x6b\x39\xa3\x3b\xb7"
        "\xcf\x59\xcf\x39\x91\x73\x39\xe7\x4a\xce\xd5\x9c\x6b\x39\xe3\x80\xcc"
        "\xdd\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x3e"
        "\x5c\x8a\xea\x9f\x14\x5f\xff\xca\x7a\xda\xe8\x6d\xad\x2f\x3d\x11\xad"
        "\x5c\xb5\x1e\xe8\x87\xde\xcf\x02\x00\x00\xff\xff\xda\x50\xf9\xcc",
        3110);
    syz_mount_image(0x20000040, 0x200001c0, 0x2000000, 0x20000240, 1, 0xc26,
                    0x200004c0);
    break;
  case 1:
    memcpy((void*)0x200000c0, "blkio.bfq.io_wait_time_recursive\000", 33);
    res = syscall(__NR_openat, 0xffffff9c, 0x200000c0ul, 0x275aul, 0ul);
    if (res != -1)
      r[0] = res;
    break;
  case 2:
    syscall(__NR_write, r[0], 0x20000040ul, 0x208e24bul);
    break;
  case 3:
    memcpy((void*)0x20000080, "memory.events.local\000", 20);
    res = syscall(__NR_openat, 0xffffff9c, 0x20000080ul, 0x275aul, 0ul);
    if (res != -1)
      r[1] = res;
    break;
  case 4:
    syscall(__NR_write, r[1], 0x20000040ul, 0x208e24bul);
    break;
  }
}
int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      loop();
    }
  }
  sleep(1000000);
  return 0;
}