git: 736e2ab5ef3c - main - stress2: Added two syzkaller reproducers
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Date: Fri, 25 Apr 2025 07:53:05 UTC
The branch main has been updated by pho: URL: https://cgit.FreeBSD.org/src/commit/?id=736e2ab5ef3c84dc9c08351822ff2d8473ae5330 commit 736e2ab5ef3c84dc9c08351822ff2d8473ae5330 Author: Peter Holm <pho@FreeBSD.org> AuthorDate: 2025-04-25 07:52:30 +0000 Commit: Peter Holm <pho@FreeBSD.org> CommitDate: 2025-04-25 07:52:30 +0000 stress2: Added two syzkaller reproducers --- tools/test/stress2/misc/syzkaller74.sh | 469 +++++++++++++++++++++++++++++++++ tools/test/stress2/misc/syzkaller75.sh | 377 ++++++++++++++++++++++++++ 2 files changed, 846 insertions(+) diff --git a/tools/test/stress2/misc/syzkaller74.sh b/tools/test/stress2/misc/syzkaller74.sh new file mode 100755 index 000000000000..886c6047585b --- /dev/null +++ b/tools/test/stress2/misc/syzkaller74.sh @@ -0,0 +1,469 @@ +#!/bin/sh + +# panic: _pctrie_lookup_node: freed node in iter path +# cpuid = 0 +# time = 1745029155 +# KDB: stack backtrace: +# db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe01085d2a30 +# vpanic() at vpanic+0x136/frame 0xfffffe01085d2b60 +# panic() at panic+0x43/frame 0xfffffe01085d2bc0 +# pctrie_iter_lookup_ge() at pctrie_iter_lookup_ge+0x166/frame 0xfffffe01085d2bd0 +# vm_object_page_clean() at vm_object_page_clean+0x22e/frame 0xfffffe01085d2c50 +# vnode_pager_clean_async() at vnode_pager_clean_async+0x48/frame 0xfffffe01085d2c70 +# vinactivef() at vinactivef+0x75/frame 0xfffffe01085d2cb0 +# vput_final() at vput_final+0x29c/frame 0xfffffe01085d2d00 +# vm_map_process_deferred() at vm_map_process_deferred+0xa9/frame 0xfffffe01085d2d20 +# vm_map_remove() at vm_map_remove+0xcb/frame 0xfffffe01085d2d50 +# vmspace_exit() at vmspace_exit+0xa8/frame 0xfffffe01085d2d80 +# exit1() at exit1+0x533/frame 0xfffffe01085d2df0 +# sys_exit() at sys_exit+0xd/frame 0xfffffe01085d2e00 +# amd64_syscall() at amd64_syscall+0x15a/frame 0xfffffe01085d2f30 +# fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe01085d2f30 +# --- syscall (1, FreeBSD ELF64, exit), rip = 0x822a9b7fa, rsp = 0x8202b4de8, rbp = 0x8202b4e00 --- +# KDB: enter: panic +# [ thread pid 21141 tid 100328 ] +# Stopped at kdb_enter+0x33: movq $0,0x104d862(%rip) +# db> + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +. ../default.cfg +set -u +prog=$(basename "$0" .sh) +cat > /tmp/$prog.c <<EOF +// https://syzkaller.appspot.com/bug?id=8658267170f7f61f4317bb04c1fe9add379ffaf4 +// autogenerated by syzkaller (https://github.com/google/syzkaller) +// syzbot+b5f9ebf4c2c63a5db681@syzkaller.appspotmail.com + +#define _GNU_SOURCE + +#include <sys/types.h> + +#include <dirent.h> +#include <errno.h> +#include <pthread.h> +#include <pwd.h> +#include <signal.h> +#include <stdarg.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/endian.h> +#include <sys/resource.h> +#include <sys/stat.h> +#include <sys/syscall.h> +#include <sys/wait.h> +#include <time.h> +#include <unistd.h> + +static void kill_and_wait(int pid, int* status) +{ + kill(pid, SIGKILL); + while (waitpid(-1, status, 0) != pid) { + } +} + +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 reset_flags(const char* filename) +{ + struct stat st; + if (lstat(filename, &st)) + exit(1); + st.st_flags &= ~(SF_NOUNLINK | UF_NOUNLINK | SF_IMMUTABLE | UF_IMMUTABLE | + SF_APPEND | UF_APPEND); + if (lchflags(filename, st.st_flags)) + exit(1); +} +static void __attribute__((noinline)) remove_dir(const char* dir) +{ + DIR* dp = opendir(dir); + if (dp == NULL) { + if (errno == EACCES) { + if (rmdir(dir)) + exit(1); + return; + } + 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); + struct stat st; + if (lstat(filename, &st)) + exit(1); + if (S_ISDIR(st.st_mode)) { + remove_dir(filename); + continue; + } + if (unlink(filename)) { + if (errno == EPERM) { + reset_flags(filename); + reset_flags(dir); + if (unlink(filename) == 0) + continue; + } + exit(1); + } + } + closedir(dp); + while (rmdir(dir)) { + if (errno == EPERM) { + reset_flags(dir); + if (rmdir(dir) == 0) + break; + } + 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 { + pthread_mutex_t mu; + pthread_cond_t cv; + int state; +} event_t; + +static void event_init(event_t* ev) +{ + if (pthread_mutex_init(&ev->mu, 0)) + exit(1); + if (pthread_cond_init(&ev->cv, 0)) + exit(1); + ev->state = 0; +} + +static void event_reset(event_t* ev) +{ + ev->state = 0; +} + +static void event_set(event_t* ev) +{ + pthread_mutex_lock(&ev->mu); + if (ev->state) + exit(1); + ev->state = 1; + pthread_mutex_unlock(&ev->mu); + pthread_cond_broadcast(&ev->cv); +} + +static void event_wait(event_t* ev) +{ + pthread_mutex_lock(&ev->mu); + while (!ev->state) + pthread_cond_wait(&ev->cv, &ev->mu); + pthread_mutex_unlock(&ev->mu); +} + +static int event_isset(event_t* ev) +{ + pthread_mutex_lock(&ev->mu); + int res = ev->state; + pthread_mutex_unlock(&ev->mu); + return res; +} + +static int event_timedwait(event_t* ev, uint64_t timeout) +{ + uint64_t start = current_time_ms(); + uint64_t now = start; + pthread_mutex_lock(&ev->mu); + for (;;) { + if (ev->state) + break; + uint64_t remain = timeout - (now - start); + struct timespec ts; + ts.tv_sec = remain / 1000; + ts.tv_nsec = (remain % 1000) * 1000 * 1000; + pthread_cond_timedwait(&ev->cv, &ev->mu, &ts); + now = current_time_ms(); + if (now - start > timeout) + break; + } + int res = ev->state; + pthread_mutex_unlock(&ev->mu); + return res; +} + +static void sandbox_common() +{ + struct rlimit rlim; + rlim.rlim_cur = rlim.rlim_max = 128 << 20; + setrlimit(RLIMIT_AS, &rlim); + rlim.rlim_cur = rlim.rlim_max = 8 << 20; + setrlimit(RLIMIT_MEMLOCK, &rlim); + rlim.rlim_cur = rlim.rlim_max = 1 << 20; + setrlimit(RLIMIT_FSIZE, &rlim); + rlim.rlim_cur = rlim.rlim_max = 1 << 20; + setrlimit(RLIMIT_STACK, &rlim); + rlim.rlim_cur = rlim.rlim_max = 0; + setrlimit(RLIMIT_CORE, &rlim); + rlim.rlim_cur = rlim.rlim_max = 256; + setrlimit(RLIMIT_NOFILE, &rlim); +} + +static void loop(); + +static int do_sandbox_none(void) +{ + sandbox_common(); + loop(); + return 0; +} + +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) +{ + if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { + } + int i, call, thread; + for (call = 0; call < 12; 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); + break; + } + } + for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) + sleep_ms(1); +} + +static void execute_one(void); + +#define WAIT_FLAGS 0 + +static void loop(void) +{ + int iter = 0; + for (;; 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); + 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; + } + remove_dir(cwdbuf); + } +} + +uint64_t r[5] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, + 0xffffffffffffffff, 0xffffffffffffffff}; + +void execute_call(int call) +{ + intptr_t res = 0; + switch (call) { + case 0: + memcpy((void*)0x200000000000, "./file0\000", 8); + res = syscall(SYS_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000000ul, + /*flags=O_VERIFY|O_CREAT|O_WRONLY*/ 0x200201ul, /*mode=*/0ul); + if (res != -1) + r[0] = res; + break; + case 1: + *(uint32_t*)0x200000000240 = r[0]; + *(uint64_t*)0x200000000248 = 0x80000001; + *(uint64_t*)0x200000000250 = 0x2000000004c0; + memcpy((void*)0x2000000004c0, "\x45\x09\xee\x8f\xcd", 5); + *(uint64_t*)0x200000000258 = 5; + *(uint32_t*)0x200000000260 = 3; + *(uint32_t*)0x200000000264 = 0; + *(uint64_t*)0x200000000268 = 0x200000000000000; + *(uint32_t*)0x200000000270 = 8; + *(uint32_t*)0x200000000274 = 0; + *(uint64_t*)0x200000000278 = 1; + *(uint64_t*)0x200000000280 = 7; + *(uint64_t*)0x200000000288 = 0; + *(uint32_t*)0x200000000290 = 0; + *(uint32_t*)0x200000000294 = 0x20000005; + *(uint32_t*)0x200000000298 = 0x2e5562f1; + *(uint16_t*)0x2000000002a0 = 0xc088; + syscall(SYS_aio_write, /*iocb=*/0x200000000240ul); + break; + case 2: + memcpy((void*)0x200000000480, "./file0\000", 8); + res = syscall(SYS_open, /*file=*/0x200000000480ul, + /*flags=O_VERIFY*/ 0x200000ul, + /*mode=S_IWOTH|S_IWGRP|S_IXUSR|S_IWUSR*/ 0xd2ul); + if (res != -1) + r[1] = res; + break; + case 3: + syscall(SYS_mmap, /*addr=*/0x200000000000ul, /*len=*/0x200000ul, + /*prot=PROT_WRITE|PROT_READ*/ 3ul, + /*flags=MAP_FIXED|MAP_PRIVATE*/ 0x12ul, /*fd=*/r[1], + /*offset=*/0ul); + break; + case 4: + memcpy((void*)0x200000000100, "./file0\000", 8); + res = syscall(SYS_open, /*file=*/0x200000000100ul, + /*flags=O_DIRECT*/ 0x10000ul, /*mode=*/0ul); + if (res != -1) + r[2] = res; + break; + case 5: + memcpy((void*)0x2000000016c0, "./file0\000", 8); + res = syscall(SYS_open, /*file=*/0x2000000016c0ul, /*flags=O_WRONLY*/ 1ul, + /*mode=*/0ul); + if (res != -1) + r[3] = res; + break; + case 6: + *(uint64_t*)0x200000000080 = 0x2000000006c0; + *(uint64_t*)0x200000000088 = 0x100000; + syscall(SYS_pwritev, /*fd=*/r[3], /*vec=*/0x200000000080ul, /*vlen=*/1ul, + /*off=*/0ul); + break; + case 7: + *(uint64_t*)0x200000001780 = 0x200000000180; + *(uint64_t*)0x200000001788 = 0x1b133353141e377d; + syscall(SYS_preadv, /*fd=*/r[2], /*vec=*/0x200000001780ul, + /*vlen=*/0x10000000000000d1ul, /*off=*/0ul); + break; + case 8: + memcpy((void*)0x200000000480, "./file0\000", 8); + res = syscall( + SYS_open, /*file=*/0x200000000480ul, + /*flags=O_NONBLOCK|O_CREAT|O_RDWR|0x80400000000000*/ 0x80400000000206ul, + /*mode=*/0ul); + if (res != -1) + r[4] = res; + break; + case 9: + syscall(SYS_mmap, /*addr=*/0x200000000000ul, /*len=*/0x200000ul, + /*prot=PROT_WRITE|PROT_READ*/ 3ul, + /*flags=MAP_FIXED|MAP_SHARED|0x20000*/ 0x20011ul, /*fd=*/r[4], + /*offset=*/0ul); + break; + case 10: + syscall(SYS_setsockopt, /*fd=*/(intptr_t)-1, /*level=*/6, + /*optname=TCP_LOGID*/ 0x24, /*optval=*/0ul, /*optlen=*/0ul); + break; + case 11: + syscall(SYS_setsockopt, /*fd=*/(intptr_t)-1, /*level=*/6, + /*optname=TCP_LOGID*/ 0x24, /*optval=*/0ul, /*optlen=*/0ul); + break; + } +} +int main(void) +{ + syscall(SYS_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, + /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, + /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x1012ul, + /*fd=*/(intptr_t)-1, /*offset=*/0ul); + const char* reason; + (void)reason; + use_temporary_dir(); + do_sandbox_none(); + return 0; +} +EOF +mycc -o /tmp/$prog -Wall -Wextra -O0 /tmp/$prog.c -lpthread || exit 1 + +cd /tmp +timeout 3m /tmp/$prog > /dev/null 2>&1 + +rm -rf /tmp/$prog /tmp/$prog.c /tmp/$prog.core /tmp/$prog.?????? +exit 0 diff --git a/tools/test/stress2/misc/syzkaller75.sh b/tools/test/stress2/misc/syzkaller75.sh new file mode 100755 index 000000000000..05e1e56bc44d --- /dev/null +++ b/tools/test/stress2/misc/syzkaller75.sh @@ -0,0 +1,377 @@ +#!/bin/sh + +# panic: vm_pager_assert_in: page 0xfffffe001987bcc0 is mapped +# cpuid = 10 +# time = 1745335200 +# KDB: stack backtrace: +# db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0108807700 +# vpanic() at vpanic+0x136/frame 0xfffffe0108807830 +# panic() at panic+0x43/frame 0xfffffe0108807890 +# vm_pager_assert_in() at vm_pager_assert_in+0x1fa/frame 0xfffffe01088078d0 +# vm_pager_get_pages() at vm_pager_get_pages+0x3d/frame 0xfffffe0108807920 +# vm_fault_getpages() at vm_fault_getpages+0x22b/frame 0xfffffe0108807980 +# vm_fault_object() at vm_fault_object+0x2ab/frame 0xfffffe01088079e0 +# vm_fault() at vm_fault+0x2d1/frame 0xfffffe0108807b40 +# vm_map_wire_locked() at vm_map_wire_locked+0x385/frame 0xfffffe0108807bf0 +# vm_mmap_object() at vm_mmap_object+0x2fd/frame 0xfffffe0108807c50 +# vn_mmap() at vn_mmap+0x152/frame 0xfffffe0108807ce0 +# kern_mmap() at kern_mmap+0x621/frame 0xfffffe0108807dc0 +# sys_mmap() at sys_mmap+0x42/frame 0xfffffe0108807e00 +# amd64_syscall() at amd64_syscall+0x15a/frame 0xfffffe0108807f30 +# fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0108807f30 +# --- syscall (0, FreeBSD ELF64, syscall), rip = 0x82438d7fa, rsp = 0x824847f68, rbp = 0x824847f90 --- +# KDB: enter: panic +# [ thread pid 43067 tid 146060 ] +# Stopped at kdb_enter+0x33: movq $0,0x124d7e2(%rip) +# db> x/s version +# version: FreeBSD 15.0-CURRENT #2 main-n276647-a098111a28ed-dirty: Tue Apr 22 16:37:39 CEST 2025 +# pho@mercat1.netperf.freebsd.org:/usr/src/sys/amd64/compile/PHO +# db> + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +. ../default.cfg +set -u +prog=$(basename "$0" .sh) +cat > /tmp/$prog.c <<EOF +// https://syzkaller.appspot.com/bug?id=bab5b2c0d3e8f95d52a06ab501ddb3c11200a5c9 +// autogenerated by syzkaller (https://github.com/google/syzkaller) +// syzbot+1cc9ede76727d2ea2e8d@syzkaller.appspotmail.com + +#define _GNU_SOURCE + +#include <sys/types.h> + +#include <errno.h> +#include <pthread.h> +#include <pwd.h> +#include <signal.h> +#include <stdarg.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/endian.h> +#include <sys/syscall.h> +#include <sys/wait.h> +#include <time.h> +#include <unistd.h> + +static void kill_and_wait(int pid, int* status) +{ + kill(pid, SIGKILL); + while (waitpid(-1, status, 0) != pid) { + } +} + +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 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 { + pthread_mutex_t mu; + pthread_cond_t cv; + int state; +} event_t; + +static void event_init(event_t* ev) +{ + if (pthread_mutex_init(&ev->mu, 0)) + exit(1); + if (pthread_cond_init(&ev->cv, 0)) + exit(1); + ev->state = 0; +} + +static void event_reset(event_t* ev) +{ + ev->state = 0; +} + +static void event_set(event_t* ev) +{ + pthread_mutex_lock(&ev->mu); + if (ev->state) + exit(1); + ev->state = 1; + pthread_mutex_unlock(&ev->mu); + pthread_cond_broadcast(&ev->cv); +} + +static void event_wait(event_t* ev) +{ + pthread_mutex_lock(&ev->mu); + while (!ev->state) + pthread_cond_wait(&ev->cv, &ev->mu); + pthread_mutex_unlock(&ev->mu); +} + +static int event_isset(event_t* ev) +{ + pthread_mutex_lock(&ev->mu); + int res = ev->state; + pthread_mutex_unlock(&ev->mu); + return res; +} + +static int event_timedwait(event_t* ev, uint64_t timeout) +{ + uint64_t start = current_time_ms(); + uint64_t now = start; + pthread_mutex_lock(&ev->mu); + for (;;) { + if (ev->state) + break; + uint64_t remain = timeout - (now - start); + struct timespec ts; + ts.tv_sec = remain / 1000; + ts.tv_nsec = (remain % 1000) * 1000 * 1000; + pthread_cond_timedwait(&ev->cv, &ev->mu, &ts); + now = current_time_ms(); + if (now - start > timeout) + break; + } + int res = ev->state; + pthread_mutex_unlock(&ev->mu); + return res; +} + +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) +{ + if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { + } + int i, call, thread; + for (call = 0; call < 11; 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); + break; + } + } + for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) + sleep_ms(1); +} + +static void execute_one(void); + +#define WAIT_FLAGS 0 + +static void loop(void) +{ +// int iter = 0; + for (;; /*iter++*/) { + int pid = fork(); + if (pid < 0) + exit(1); + if (pid == 0) { + 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_call(int call) +{ + intptr_t res = 0; + switch (call) { + case 0: + memcpy((void*)0x200000000200, "./file0\000", 8); + res = syscall(SYS_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000200ul, + /*flags=O_VERIFY|O_CREAT|O_CLOEXEC|O_WRONLY*/ 0x300201ul, + /*mode=S_IWGRP|S_IXUSR|S_IWUSR*/ 0xd0ul); + if (res != -1) + r[0] = res; + break; + case 1: + *(uint32_t*)0x200000000240 = r[0]; + *(uint64_t*)0x200000000248 = 0x80000002; + *(uint64_t*)0x200000000250 = 0x200000000080; + memcpy((void*)0x200000000080, "\x1f\x9a\xc4", 3); + *(uint64_t*)0x200000000258 = 3; + *(uint32_t*)0x200000000260 = 0; + *(uint32_t*)0x200000000264 = 0; + *(uint64_t*)0x200000000268 = 0; + *(uint32_t*)0x200000000270 = 0; + *(uint32_t*)0x200000000274 = 0; + *(uint64_t*)0x200000000278 = 0; + *(uint64_t*)0x200000000280 = 7; + *(uint64_t*)0x200000000288 = 0; + *(uint32_t*)0x200000000290 = 0; + *(uint32_t*)0x200000000294 = 0; + *(uint64_t*)0x200000000298 = 0; + *(uint64_t*)0x2000000002a0 = 0; + *(uint64_t*)0x2000000002a8 = 0; + syscall(SYS_aio_write, /*iocb=*/0x200000000240ul); + break; + case 2: + syscall(SYS_mlockall, /*flags=MCL_FUTURE*/ 2ul); + break; + case 3: + memcpy((void*)0x200000000100, "./file0\000", 8); + res = syscall(SYS_open, /*file=*/0x200000000100ul, + /*flags=O_DIRECT*/ 0x10000ul, /*mode=*/0ul); + if (res != -1) + r[1] = res; + break; + case 4: + *(uint64_t*)0x200000001780 = 0x200000000180; + *(uint64_t*)0x200000001788 = 0x1b133353141e377d; + syscall(SYS_preadv, /*fd=*/r[1], /*vec=*/0x200000001780ul, + /*vlen=*/0x10000000000000d1ul, /*off=*/0ul); + break; + case 5: + memcpy((void*)0x200000000040, "./file0\000", 8); + syscall( + SYS_open, /*file=*/0x200000000040ul, + /*flags=O_TRUNC|O_NONBLOCK|O_NOFOLLOW|O_CREAT|O_APPEND|0x2*/ 0x70eul, + /*mode=*/0ul); + break; + case 6: + memcpy((void*)0x200000000480, "./file0\000", 8); + res = syscall( + SYS_open, /*file=*/0x200000000480ul, + /*flags=O_NONBLOCK|O_CREAT|O_RDWR|0x80400000000000*/ 0x80400000000206ul, + /*mode=*/0ul); + if (res != -1) + r[2] = res; + break; + case 7: + syscall(SYS_mmap, /*addr=*/0x200000000000ul, /*len=*/0x200000ul, + /*prot=PROT_WRITE|PROT_READ*/ 3ul, + /*flags=MAP_FIXED|MAP_SHARED|0x20000*/ 0x20011ul, /*fd=*/r[2], + /*offset=*/0ul); + break; + case 8: + memcpy((void*)0x200000000040, "./file0\000", 8); + syscall(SYS_truncate, /*file=*/0x200000000040ul, /*len=*/0xaa480ul); + break; + case 9: + memcpy((void*)0x200000000480, "./file0\000", 8); + res = syscall(SYS_open, /*file=*/0x200000000480ul, /*flags=*/0ul, + /*mode=*/0ul); + if (res != -1) + r[3] = res; + break; + case 10: + syscall(SYS_mmap, /*addr=*/0x200000000000ul, /*len=*/0x200000ul, + /*prot=PROT_WRITE|PROT_READ*/ 3ul, + /*flags=MAP_FIXED|MAP_PRIVATE*/ 0x12ul, /*fd=*/r[3], + /*offset=*/0ul); + break; + } +} +int main(void) +{ + syscall(SYS_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, + /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, + /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x1012ul, + /*fd=*/(intptr_t)-1, /*offset=*/0ul); + const char* reason; + (void)reason; + loop(); + return 0; +} +EOF +mycc -o /tmp/$prog -Wall -Wextra -O0 /tmp/$prog.c -lpthread || exit 1 + +(cd ../testcases/swap; ./swap -t 3m -i 30 -l 100 > /dev/null 2>&1) & +sleep 5 + +work=/tmp/$prog.dir +rm -rf $work +mkdir $work +cd /tmp/$prog.dir +for i in `jot 30`; do + ( + mkdir d$i + cd d$i + timeout 3m /tmp/$prog > /dev/null 2>&1 & + ) +done +while pgrep -q $prog; do sleep 2; done +while pkill swap; do :; done +wait + +rm -rf /tmp/$prog /tmp/$prog.c /tmp/$prog.core /tmp/$prog.?????? $work +exit 0