From nobody Tue Jun 14 05:00:06 2022 X-Original-To: dev-commits-src-main@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 18E0C83B2E5; Tue, 14 Jun 2022 05:00:07 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4LMbpZ6vl4z4jgg; Tue, 14 Jun 2022 05:00:06 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1655182807; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=e+k6NBfAVb6zWfupLRBB8KCQoFRVz3dBOV6gvDkEnWs=; b=BguGj+0c0xzobfF0nVS/AQrlCLoHy6riiKwUWu3q2zzoKBQuGRm8ev/GkqV2nVCX04cP2G LnaXvgw/dmlRUjBiruLsJRH/CRQB2zg4RoU18lN23bxCBTPv6I1x7d4fBy8Gtc8yTBmG7j NOfUX/2eOfVqNYW9+YdOf5QV2/xNSpWmd+1Ghm9cGCh7aOTnLKFII5gwKR0GD6Oe1G6nHc rRSorEN1Nu/G41cLruOGyGn8gMYU3ADPI9TLGFqzoMI3eL6SH1RkhC3s0nvUqwlkI9ud6J TTtI5zHT0g2dx9hsALoyzU61LRGL3wzLD4YEjMUds1spdXeWFjH2Dz0BSwEahQ== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id CCE48237F4; Tue, 14 Jun 2022 05:00:06 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 25E506AY085262; Tue, 14 Jun 2022 05:00:06 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 25E506wg085259; Tue, 14 Jun 2022 05:00:06 GMT (envelope-from git) Date: Tue, 14 Jun 2022 05:00:06 GMT Message-Id: <202206140500.25E506wg085259@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Peter Holm Subject: git: 2d4b1f4b8cf0 - main - stress2: Added a syzkaller reproducer. Enable all reaper tests List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-main@freebsd.org X-BeenThere: dev-commits-src-main@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: pho X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 2d4b1f4b8cf0d3262d1d7b969711081c50134888 Auto-Submitted: auto-generated ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1655182807; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=e+k6NBfAVb6zWfupLRBB8KCQoFRVz3dBOV6gvDkEnWs=; b=yrKRLUx38HFzcf51uEym/ANVQdI9VNCMdAJ5QjsWNNYORsW2ZAe8f2KGzv5G+W+kzQOCjP Mgmpt23nTCMmftgcQ4OprNSnhn7s/6sY/pn9bk7UL6ykEh17X2APSzA3kJByLGS0NKMeyY 0lj1uoAf154xBvBV/B8ZQy8XEPy7VG4cE3ueNXlV9kbSf5Y5CWtJC3cTIIru3GjO6uwd21 2igQ0zx6GEPu5uIqhEdZzZ1xkKNj0wryHLYpL2NJ3Xph8WWktEA8ATlc2YDrqXul1tnWlY WgIOVFo3bzVPiP3sIJSQZjiH4T+tfxcO43KJKOFy0H+meAyXAAQuFsB360WyGw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1655182807; a=rsa-sha256; cv=none; b=K8O6uyTBpliPdHE0SH74VaiDdfUr02oxRLgYeM8kcn5JHpGfseyPk/kksjSzBzfzRdJZwc phbVPQv1PSKqgeWfwQNPOK6CT3qWfzX+2+uXW5jOw7/crU/ZJf/zv5un5CGU16EMoW+qfp Md6nOizD3IKMulTYL5ywL4f/ICj1csAyCj9RyFfM7CYwMu2R+njTdZbbLjaZ+hHbcrasbk mIT5XBV7KgsB6YgVCpHM9V8TRxIvMbCTYQhmYnq8GZGnDylz9fgyu5Co28Mau8qgfikVfO IO23T7szAEOjtXLbmQ9Qz/Hg+LrPCOGlq4/3RQPS5U+oxJ0zK1V21hkz9/a8uQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N The branch main has been updated by pho: URL: https://cgit.FreeBSD.org/src/commit/?id=2d4b1f4b8cf0d3262d1d7b969711081c50134888 commit 2d4b1f4b8cf0d3262d1d7b969711081c50134888 Author: Peter Holm AuthorDate: 2022-06-14 04:59:32 +0000 Commit: Peter Holm CommitDate: 2022-06-14 04:59:32 +0000 stress2: Added a syzkaller reproducer. Enable all reaper tests --- tools/test/stress2/misc/all.exclude | 7 - tools/test/stress2/misc/syzkaller58.sh | 290 +++++++++++++++++++++++++++++++++ 2 files changed, 290 insertions(+), 7 deletions(-) diff --git a/tools/test/stress2/misc/all.exclude b/tools/test/stress2/misc/all.exclude index 6cd636522c48..ac5576ed1308 100644 --- a/tools/test/stress2/misc/all.exclude +++ b/tools/test/stress2/misc/all.exclude @@ -44,11 +44,6 @@ oom2.sh Hang in pfault 20180324 overcommit2.sh CAM stuck in vmwait seen 20200112 pageout.sh panic: handle_written_filepage: not started 20190218 pmc8.sh panic: [pmc,2749] (ri21, rc1) waiting too long for pmc to ... 20210621 -reaper.sh Waiting for commit -reaper2.sh Waiting for commit -reaper3.sh Waiting for commit -reaper4.sh Waiting for commit -reaper5.sh Waiting for commit rename14.sh https://people.freebsd.org/~pho/stress/log/log0279.txt 20220415 sctp2.sh panic: Queues are not empty when handling SHUTDOWN-COMPLETE 20210211 sctp3.sh panic: Queues are not empty when handling SHUTDOWN-COMPLETE 20210211 @@ -66,8 +61,6 @@ syzkaller25.sh WiP 20201116 syzkaller27.sh watchdogd fires 20220512 syzkaller28.sh WiP 20201120 syzkaller50.sh panic: Assertion done != job_total_nbytes failed at ... 20220405 -syzkaller52.sh Waiting for commit -syzkaller53.sh Waiting for commit syzkaller54.sh panic: td 0xfffffe014f7193a0 is not suspended 20220527 syzkaller55.sh panic: Counter goes negative 20220525 timeout.sh Waiting for commit diff --git a/tools/test/stress2/misc/syzkaller58.sh b/tools/test/stress2/misc/syzkaller58.sh new file mode 100755 index 000000000000..0083e13f1692 --- /dev/null +++ b/tools/test/stress2/misc/syzkaller58.sh @@ -0,0 +1,290 @@ +#!/bin/sh + +# panic: td 0xfffffe010e6ff000 is not suspended +# cpuid = 2 +# time = 1654661460 +# KDB: stack backtrace: +# db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0143924c10 +# vpanic() at vpanic+0x17f/frame 0xfffffe0143924c60 +# panic() at panic+0x43/frame 0xfffffe0143924cc0 +# thread_single() at thread_single+0x736/frame 0xfffffe0143924d40 +# fork1() at fork1+0x1e1/frame 0xfffffe0143924da0 +# sys_rfork() at sys_rfork+0xa4/frame 0xfffffe0143924e00 +# amd64_syscall() at amd64_syscall+0x145/frame 0xfffffe0143924f30 +# fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0143924f30 +# --- syscall (0, FreeBSD ELF64, nosys), rip = 0x821be4d1a, rsp = 0x8276b8f48, rbp = 0x8276b8f70 --- +# KDB: enter: panic +# [ thread pid 2860 tid 100362 ] +# Stopped at kdb_enter+0x32: movq $0,0x1277d83(%rip) +# db> x/s version +# FreeBSD 14.0-CURRENT #0 reap-n255837-0bdda1ded8d: Thu May 26 22:38:04 CEST 2022 +# pho@mercat1.netperf.freebsd.org:/var/tmp/deviant3/sys/amd64/compile/PHO +# db> + +# Submitted by: markj + +[ `uname -p` != "amd64" ] && exit 0 + +. ../default.cfg +cat > /tmp/syzkaller58.c < + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static unsigned long long procid; + +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) +{ + 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); + 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 (;;) { + 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; + } + } +} + +void execute_call(int call) +{ + switch (call) { + case 0: + syscall(SYS_rfork, 0x93000ul); + break; + case 1: + syscall(SYS_kqueue); + break; + case 2: + *(uint32_t*)0x20000000 = 0x1d; + *(uint32_t*)0x20000004 = 0; + *(uint32_t*)0x20000008 = 0; + *(uint32_t*)0x2000000c = 0; + *(uint32_t*)0x20000010 = 0; + memset((void*)0x20000014, 0, 60); + syscall(SYS_procctl, 0ul, 0, 6ul, 0x20000000ul); + break; + case 3: + syscall(SYS_kevent, -1, 0ul, 0ul, 0ul, 0ul, 0ul); + break; + case 4: + syscall(SYS_truncate, 0ul, 4ul); + break; + } +} +int main(void) +{ + syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x1012ul, -1, 0ul); + for (procid = 0; procid < 2; procid++) { + if (fork() == 0) { + loop(); + } + } + sleep(1000000); + return 0; +} + + +EOF +mycc -o /tmp/syzkaller58 -Wall -Wextra -O0 /tmp/syzkaller58.c -lpthread \ + || exit 1 + +(cd /tmp; timeout 3m ./syzkaller58) + +rm -rf /tmp/syzkaller58 /tmp/syzkaller58.c /tmp/syzkaller58.core \ + /tmp/syzkaller.?????? +[ $loaded ] && kldunload sctp.ko +exit 0