From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 66BD2C19F2E for ; Thu, 27 Feb 2025 10:19:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1CE2610EA6E; Thu, 27 Feb 2025 10:19:41 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="PHRgg3/z"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id D79E210EA5E for ; Thu, 27 Feb 2025 10:19:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1740651580; x=1772187580; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=VJDVmBEWsyzpFGEAnvPPGh87uwR73ULjv7Q6tvxSCaM=; b=PHRgg3/zEO+wNKPl41L7JUOIUfHwzFvxWaDQ/NrvAf0L6L7FzYrSru1N AyIUZeZ4h0QyygI9s3hOGYsCjYJbZlG66VyCeeQHUxOyYAv/5gHrJ2pxO 4PXlu09o75Q8AM1hG7/ijzI+Ave/9ss0Xdz6UDKkR5eyGuAab9sIw0aqK 3d+Uf3UztQUmyqud1KULPIgxZcAIQjk5UlyNJTNgCPZq8PIcnOqomJurT 6DgUlTzlo2DUvwNlc+R7VBLWUvDohywmaPI0pF/13pLZYalykgZvxLzI0 k3+kXcl8CzkN4RVpZoq5B7dH9nPxozsroYNhPN0yf7obS0iJBjnOAslaU A==; X-CSE-ConnectionGUID: 6+6pb/SAQhCtM4Lzte/+Jg== X-CSE-MsgGUID: nzXmmmTbQvSdjIjI3u0fNA== X-IronPort-AV: E=McAfee;i="6700,10204,11357"; a="45185577" X-IronPort-AV: E=Sophos;i="6.13,319,1732608000"; d="scan'208";a="45185577" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Feb 2025 02:19:40 -0800 X-CSE-ConnectionGUID: P2t2VZx0RSqLrLd82cHAYw== X-CSE-MsgGUID: YzxzAbKCTqKmIldC4NAPxA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="122230159" Received: from mviannax-mobl.amr.corp.intel.com (HELO friendship7-home.clients.intel.com) ([10.245.80.7]) by orviesa005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Feb 2025 02:19:37 -0800 From: Peter Senna Tschudin To: igt-dev@lists.freedesktop.org Cc: Peter Senna Tschudin , christian.koenig@amd.com, alexander.deucher@amd.com, jesse.zhang@amd.com, harry.wentland@amd.com, zbigniew.kempczynski@intel.com, kamil.konieczny@linux.intel.com, ryszard.knop@intel.com, lucas.demarchi@intel.com, katarzyna.piecielska@intel.com, Jonathan Cavitt Subject: [PATCH v7 i-g-t 1/3] runner/kmemleak: library to interact with kmemleak Date: Thu, 27 Feb 2025 11:18:51 +0100 Message-Id: <20250227101853.361504-2-peter.senna@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250227101853.361504-1-peter.senna@linux.intel.com> References: <20250227101853.361504-1-peter.senna@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: igt-dev@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development mailing list for IGT GPU Tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" Adds a simple library for interacting with kmemleak and add unit testing for the library. There are two modes intended to integrate with igt_runner: - once: collect kmemleaks after all test completed - each: collect kmemleaks after eachb test completes To use the library include "kmemleak.h", call runner_kmemleak_init() to check if kmemleak is enabled and finally call runner_kmemleak() to collect kmemleaks. runner_kmemleak() expect the following arguments: - const char *last_test: Name of the last lest or NULL - int resdirfd: file descriptor of the results directory - bool kmemleak_each: Are we scanning once or scanning after each test? - bool sync: sync after each write? Cc: christian.koenig@amd.com Cc: alexander.deucher@amd.com Cc: jesse.zhang@amd.com Cc: harry.wentland@amd.com Cc: zbigniew.kempczynski@intel.com Cc: kamil.konieczny@linux.intel.com Cc: ryszard.knop@intel.com Cc: lucas.demarchi@intel.com Cc: katarzyna.piecielska@intel.com Reviewed-by: Zbigniew Kempczyński Reviewed-by: Jonathan Cavitt Signed-off-by: Peter Senna Tschudin --- runner/kmemleak.c | 273 ++++++++++++++++++++++++++++++++++ runner/kmemleak.h | 16 ++ runner/meson.build | 11 +- runner/runner_kmemleak_test.c | 267 +++++++++++++++++++++++++++++++++ 4 files changed, 566 insertions(+), 1 deletion(-) create mode 100644 runner/kmemleak.c create mode 100644 runner/kmemleak.h create mode 100644 runner/runner_kmemleak_test.c diff --git a/runner/kmemleak.c b/runner/kmemleak.c new file mode 100644 index 000000000..496d4bbb4 --- /dev/null +++ b/runner/kmemleak.c @@ -0,0 +1,273 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2025 Intel Corporation + */ + +#include +#include +#include +#include +#include + +#include "kmemleak.h" + +/* We can change the path for unit testing, see runner_kmemleak_init() */ +static char runner_kmemleak_file[256] = "/sys/kernel/debug/kmemleak"; + +#define MAX_WRITE_RETRIES 5 +/** + * runner_kmemleak_write - Writes the buffer to the file descriptor retrying when + * possible. + * @fd: The file descriptor to write to. + * @buf: Pointer to the data to write. + * @count: Total number of bytes to write. + * + * Returns the total number of bytes written on success, or -1 on failure. + */ +static bool runner_kmemleak_write(int fd, const void *buf, size_t count) +{ + const char *ptr = buf; + size_t remaining = count; + ssize_t written; + int retries = 0; + + while (remaining > 0) { + written = write(fd, ptr, remaining); + if (written > 0) { + ptr += written; + remaining -= written; + } else if (written == -1) { + if (errno == EINTR || errno == EAGAIN) { + /* Retry for recoverable errors */ + if (++retries > MAX_WRITE_RETRIES) { + fprintf(stderr, "%s: Exceeded retry limit\n", __func__); + return false; + } + continue; + } else { + /* Log unrecoverable error */ + fprintf(stderr, "%s: unrecoverable write error\n", __func__); + return false; + } + } else if (written == 0) { + if (++retries > MAX_WRITE_RETRIES) { + fprintf(stderr, "%s: Exceeded retry limit\n", __func__); + return false; + } + } + } + return true; +} + +/** + * runner_kmemleak_cmd: + * @cmd: command to send to kmemleak + * + * Send a command to kmemleak. + * + * Returns: true if sending the command was successful, false otherwise. + */ +static bool runner_kmemleak_cmd(const char *cmd) +{ + int fp; + bool res; + + fp = open(runner_kmemleak_file, O_RDWR); + if (!fp) + return false; + + res = runner_kmemleak_write(fp, cmd, strlen(cmd)); + close(fp); + + return res; +} + +/** + * runner_kmemleak_clear: + * + * Trigger an immediate clear on kmemleak. + * + * Returns: true if sending the command to clear was successful, false + * otherwise. + */ +static bool runner_kmemleak_clear(void) +{ + return runner_kmemleak_cmd("clear"); +} + +/** + * runner_kmemleak_found_leaks: + * + * Check if kmemleak found any leaks by trying to read one byte from the + * kmemleak file. + * + * Returns: true if kmemleak found any leaks, false otherwise. + */ +static bool runner_kmemleak_found_leaks(void) +{ + FILE *fp; + char buf[1]; + size_t rlen; + + fp = fopen(runner_kmemleak_file, "r"); + if (!fp) + return false; + + rlen = fread(buf, 1, 1, fp); + + if (rlen == 1) + lseek(fileno(fp), 0, SEEK_SET); + + fclose(fp); + + return rlen == 1; +} + +/** + * runner_kmemleak_scan: + * + * Trigger an immediate scan on kmemleak. + * + * Returns: true if leaks are found. False on failure and when no leaks are + * found. + */ +static bool runner_kmemleak_scan(void) +{ + if (!runner_kmemleak_cmd("scan")) + return false; + + /* kmemleak documentation states that "the memory scanning is only + * performed when the /sys/kernel/debug/kmemleak file is read." Read + * a byte to trigger the scan now. + */ + return runner_kmemleak_found_leaks(); +} + +/** + * runner_kmemleak_append_to: + * @last_test: last test name to append to the file + * @resdirfd: file descriptor of the results directory + * @kmemleak_each: Are we scanning once or scanning after each test? + * @sync: sync the kmemleak file often + * + * Append the kmemleak file to the result file adding a header indicating if + * the leaks are for all tests or for a single one. + * + * Returns: true if appending to the file was successful, false otherwise. + */ +static bool runner_kmemleak_append_to(const char *last_test, int resdirfd, + bool kmemleak_each, bool sync) +{ + const char *before = "kmemleaks found before running any test\n\n"; + const char *once = "kmemleaks found after running all tests\n"; + int kmemleakfd, resfilefd; + char buf[4096]; + size_t rlen; + + kmemleakfd = open(runner_kmemleak_file, O_RDONLY); + if (kmemleakfd < 0) + return false; + + /* Seek back to first byte */ + lseek(kmemleakfd, 0, SEEK_SET); + + /* Open text file to append */ + resfilefd = openat(resdirfd, KMEMLEAKRESFILENAME, + O_RDWR | O_CREAT | O_APPEND, 0666); + if (!resfilefd) { + close(kmemleakfd); + return false; + } + + /* This is the header added before the content of the kmemleak file */ + if (kmemleak_each) { + if (!last_test) { + runner_kmemleak_write(resfilefd, before, strlen(before)); + } else { + /* Write \n\n last_test \n to buf */ + snprintf(buf, sizeof(buf), + "\n\nkmemleaks found after running %s:\n", + last_test); + + runner_kmemleak_write(resfilefd, buf, strlen(buf)); + memset(buf, 0, sizeof(buf)); + } + } else { + runner_kmemleak_write(resfilefd, once, strlen(once)); + } + + if (sync) + fsync(resfilefd); + + while ((rlen = read(kmemleakfd, buf, sizeof(buf))) > 0) { + if (!runner_kmemleak_write(resfilefd, buf, rlen)) { + close(resfilefd); + close(kmemleakfd); + return false; + } + if (sync) + fsync(resfilefd); + } + + close(resfilefd); + close(kmemleakfd); + + return true; +} + +/** + * runner_kmemleak_init: + * @unit_test_kmemleak_file: path to kmemleak file for unit testing + * + * Check if kmemleak is enabled in the kernel, if debugfs is mounted and + * if kmemleak file is present and readable. + * + * Returns: true if kmemleak is enabled, false otherwise. + */ +bool runner_kmemleak_init(const char *unit_test_kmemleak_file) +{ + FILE *fp; + + if (unit_test_kmemleak_file) + snprintf(runner_kmemleak_file, + sizeof(runner_kmemleak_file), + "%s", + unit_test_kmemleak_file); + + fp = fopen(runner_kmemleak_file, "r"); + if (!fp) + return false; + + fclose(fp); + + return true; +} + +/** + * runner_kmemleak: + * @last_test: last test name to append to the file + * @resdirfd: file descriptor of the results directory + * @kmemleak_each: Are we scanning once or scanning after each test? + * @sync: sync the kmemleak file often + * + * This is the main function that should be called when integrating runner_kmemleak + * into igt_runner or elsewhere. There are two flows: + * - run once: runs only once after all tests are completed + * - run for each test: runs after every test + * + * Returns: true on success, false otherwise. + */ +bool runner_kmemleak(const char *last_test, int resdirfd, bool kmemleak_each, + bool sync) +{ + /* Scan to collect results */ + if (runner_kmemleak_scan()) + if (!runner_kmemleak_append_to(last_test, resdirfd, + kmemleak_each, sync)) + return false; + + if (kmemleak_each) + runner_kmemleak_clear(); + + return true; +} diff --git a/runner/kmemleak.h b/runner/kmemleak.h new file mode 100644 index 000000000..694114109 --- /dev/null +++ b/runner/kmemleak.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: MIT + * Copyright © 2025 Intel Corporation + */ + +#ifndef runner_kmemleak_H +#define runner_kmemleak_H + +#include + +bool runner_kmemleak_init(const char *unit_test_kmemleak_file); +bool runner_kmemleak(const char *last_test, int resdirfd, + bool kmemleak_each, bool sync); + +#define KMEMLEAKRESFILENAME "kmemleak.txt" + +#endif /* runner_kmemleak_H */ diff --git a/runner/meson.build b/runner/meson.build index c62303ce3..765cae39f 100644 --- a/runner/meson.build +++ b/runner/meson.build @@ -4,6 +4,7 @@ runnerlib_sources = [ 'settings.c', 'job_list.c', 'executor.c', 'resultgen.c', + 'kmemleak.c', lib_version, ] @@ -11,8 +12,9 @@ runner_sources = [ 'runner.c' ] resume_sources = [ 'resume.c' ] results_sources = [ 'results.c' ] decoder_sources = [ 'decoder.c' ] -runner_test_sources = [ 'runner_tests.c' ] +runner_test_sources = [ 'runner_tests.c'] runner_json_test_sources = [ 'runner_json_tests.c' ] +runner_kmemleak_test_sources = [ 'runner_kmemleak_test.c' ] jsonc = dependency('json-c', required: build_runner) runner_deps = [jsonc, glib] @@ -74,6 +76,13 @@ if jsonc.found() and build_tests dependencies : [igt_deps, jsonc]) test('runner_json', runner_json_test, timeout : 300) + runner_kmemleak_test = executable('runner_kmemleak_test', + runner_kmemleak_test_sources, + link_with : runnerlib, + install : false, + dependencies : [igt_deps]) + test('runner_kmemleak', runner_kmemleak_test, timeout : 300) + build_info += 'Build test runner: true' if liboping.found() build_info += 'Build test runner with oping: true' diff --git a/runner/runner_kmemleak_test.c b/runner/runner_kmemleak_test.c new file mode 100644 index 000000000..5187e0e61 --- /dev/null +++ b/runner/runner_kmemleak_test.c @@ -0,0 +1,267 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2025 Intel Corporation + */ + +#include +#include +#include +#include + +#include "igt.h" +#include "kmemleak.h" + +const char *kmemleak_file_example = +"unreferenced object 0xffff888102a2e638 (size 80):\n" +" comm \"swapper/0\", pid 1, jiffies 4294672730\n" +" hex dump (first 32 bytes):\n" +" 00 00 00 00 00 00 00 00 0d 01 a2 00 00 00 00 00 ................\n" +" f0 7c 03 00 00 c9 ff ff 00 00 00 00 00 00 00 00 .|..............\n" +" backtrace (crc 2df71a7e):\n" +" [] kmemleak_alloc+0x4b/0x80\n" +" [] kmem_cache_alloc_noprof+0x2ab/0x370\n" +" [] acpi_ps_alloc_op+0xdc/0xf0\n" +" [] acpi_ps_create_op+0x1c0/0x400\n" +" [] acpi_ps_parse_loop+0x16c/0xa60\n" +" [] acpi_ps_parse_aml+0x22f/0x5f0\n" +" [] acpi_ps_execute_method+0x152/0x380\n" +" [] acpi_ns_evaluate+0x31d/0x5e0\n" +" [] acpi_evaluate_object+0x206/0x490\n" +" [] __acpi_power_off.isra.0+0x22/0x70\n" +" [] acpi_turn_off_unused_power_resources+0xbb/0xf0\n" +" [] acpi_scan_init+0x119/0x290\n" +" [] acpi_init+0x23a/0x590\n" +" [] do_one_initcall+0x61/0x3d0\n" +" [] kernel_init_freeable+0x3e2/0x680\n" +" [] kernel_init+0x1b/0x170" +"unreferenced object 0xffff888102a2ed18 (size 80):\n" +" comm \"swapper/0\", pid 1, jiffies 4294672730\n" +" hex dump (first 32 bytes):\n" +" 38 e6 a2 02 81 88 ff ff 0d 11 2d 00 00 00 00 00 8.........-.....\n" +" f2 7c 03 00 00 c9 ff ff 58 ea a2 02 81 88 ff ff .|......X.......\n" +" backtrace (crc ec2a8bdc):\n" +" [] kmemleak_alloc+0x4b/0x80\n" +" [] kmem_cache_alloc_noprof+0x2ab/0x370\n" +" [] acpi_ps_alloc_op+0xdc/0xf0\n" +" [] acpi_ps_create_op+0x1c0/0x400\n" +" [] acpi_ps_parse_loop+0x16c/0xa60\n" +" [] acpi_ps_parse_aml+0x22f/0x5f0\n" +" [] acpi_ps_execute_method+0x152/0x380\n" +" [] acpi_ns_evaluate+0x31d/0x5e0\n" +" [] acpi_evaluate_object+0x206/0x490\n" +" [] __acpi_power_off.isra.0+0x22/0x70\n" +" [] acpi_turn_off_unused_power_resources+0xbb/0xf0\n" +" [] acpi_scan_init+0x119/0x290\n" +" [] acpi_init+0x23a/0x590\n" +" [] do_one_initcall+0x61/0x3d0\n" +" [] kernel_init_freeable+0x3e2/0x680\n" +" [] kernel_init+0x1b/0x170" +"unreferenced object 0xffff888102a2ea58 (size 80):\n" +" comm \"swapper/0\", pid 1, jiffies 4294672730\n" +" hex dump (first 32 bytes):\n" +" 38 e6 a2 02 81 88 ff ff 0d 01 a0 00 00 00 00 00 8...............\n" +" f6 7c 03 00 00 c9 ff ff 00 00 00 00 00 00 00 00 .|..............\n" +" backtrace (crc f911c0d1):\n" +" [] kmemleak_alloc+0x4b/0x80\n" +" [] kmem_cache_alloc_noprof+0x2ab/0x370\n" +" [] acpi_ps_alloc_op+0xdc/0xf0\n" +" [] acpi_ps_create_op+0x1c0/0x400\n" +" [] acpi_ps_parse_loop+0x16c/0xa60\n" +" [] acpi_ps_parse_aml+0x22f/0x5f0\n" +" [] acpi_ps_execute_method+0x152/0x380\n" +" [] acpi_ns_evaluate+0x31d/0x5e0\n" +" [] acpi_evaluate_object+0x206/0x490\n" +" [] __acpi_power_off.isra.0+0x22/0x70\n" +" [] acpi_turn_off_unused_power_resources+0xbb/0xf0\n" +" [] acpi_scan_init+0x119/0x290\n" +" [] acpi_init+0x23a/0x590\n" +" [] do_one_initcall+0x61/0x3d0\n" +" [] kernel_init_freeable+0x3e2/0x680\n" +" [] kernel_init+0x1b/0x170" +"unreferenced object 0xffff888102a2e428 (size 80):\n" +" comm \"swapper/0\", pid 1, jiffies 4294672730\n" +" hex dump (first 32 bytes):\n" +" 58 ea a2 02 81 88 ff ff 0d 01 35 00 00 00 00 00 X.........5.....\n" +" fc 7c 03 00 00 c9 ff ff 00 00 00 00 00 00 00 00 .|..............\n" +" backtrace (crc cb8aaffd):\n" +" [] kmemleak_alloc+0x4b/0x80\n" +" [] kmem_cache_alloc_noprof+0x2ab/0x370\n" +" [] acpi_ps_alloc_op+0xdc/0xf0\n" +" [] acpi_ps_create_op+0x1c0/0x400\n" +" [] acpi_ps_parse_loop+0x16c/0xa60\n" +" [] acpi_ps_parse_aml+0x22f/0x5f0\n" +" [] acpi_ps_execute_method+0x152/0x380\n" +" [] acpi_ns_evaluate+0x31d/0x5e0\n" +" [] acpi_evaluate_object+0x206/0x490\n" +" [] __acpi_power_off.isra.0+0x22/0x70\n" +" [] acpi_turn_off_unused_power_resources+0xbb/0xf0\n" +" [] acpi_scan_init+0x119/0x290\n" +" [] acpi_init+0x23a/0x590\n" +" [] do_one_initcall+0x61/0x3d0\n" +" [] kernel_init_freeable+0x3e2/0x680\n" +" [] kernel_init+0x1b/0x170" +"unreferenced object 0xffff888102a2e008 (size 80):\n" +" comm \"swapper/0\", pid 1, jiffies 4294672730\n" +" hex dump (first 32 bytes):\n" +" 28 e4 a2 02 81 88 ff ff 0d 01 2d 00 00 00 00 00 (.........-.....\n" +" fc 7c 03 00 00 c9 ff ff c8 e2 a2 02 81 88 ff ff .|..............\n" +" backtrace (crc 7f883e78):\n" +" [] kmemleak_alloc+0x4b/0x80\n" +" [] kmem_cache_alloc_noprof+0x2ab/0x370\n" +" [] acpi_ps_alloc_op+0xdc/0xf0\n" +" [] acpi_ps_get_next_namepath+0x1f5/0x390\n" +" [] acpi_ps_parse_loop+0x4a5/0xa60\n" +" [] acpi_ps_parse_aml+0x22f/0x5f0\n" +" [] acpi_ps_execute_method+0x152/0x380\n" +" [] acpi_ns_evaluate+0x31d/0x5e0\n" +" [] acpi_evaluate_object+0x206/0x490\n" +" [] __acpi_power_off.isra.0+0x22/0x70\n" +" [] acpi_turn_off_unused_power_resources+0xbb/0xf0\n" +" [] acpi_scan_init+0x119/0x290\n" +" [] acpi_init+0x23a/0x590\n" +" [] do_one_initcall+0x61/0x3d0\n" +" [] kernel_init_freeable+0x3e2/0x680\n" +" [] kernel_init+0x1b/0x170" +"unreferenced object 0xffff888102a2e2c8 (size 80):\n" +" comm \"swapper/0\", pid 1, jiffies 4294672730\n" +" hex dump (first 32 bytes):\n" +" 28 e4 a2 02 81 88 ff ff 0d 01 73 00 00 00 00 00 (.........s.....\n" +" 00 7d 03 00 00 c9 ff ff 00 00 00 00 00 00 00 00 .}..............\n" +" backtrace (crc 338c016):\n" +" [] kmemleak_alloc+0x4b/0x80\n" +" [] kmem_cache_alloc_noprof+0x2ab/0x370\n" +" [] acpi_ps_alloc_op+0xdc/0xf0\n" +" [] acpi_ps_create_op+0x1c0/0x400\n" +" [] acpi_ps_parse_loop+0x16c/0xa60\n" +" [] acpi_ps_parse_aml+0x22f/0x5f0\n" +" [] acpi_ps_execute_method+0x152/0x380\n" +" [] acpi_ns_evaluate+0x31d/0x5e0\n" +" [] acpi_evaluate_object+0x206/0x490\n" +" [] __acpi_power_off.isra.0+0x22/0x70\n" +" [] acpi_turn_off_unused_power_resources+0xbb/0xf0\n" +" [] acpi_scan_init+0x119/0x290\n" +" [] acpi_init+0x23a/0x590\n" +" [] do_one_initcall+0x61/0x3d0\n" +" [] kernel_init_freeable+0x3e2/0x680\n" +" [] kernel_init+0x1b/0x170" +"unreferenced object 0xffff888102a2e378 (size 80):\n" +" comm \"swapper/0\", pid 1, jiffies 4294672730\n" +" hex dump (first 32 bytes):\n" +" c8 e2 a2 02 81 88 ff ff 0d 01 0d 00 00 00 00 00 ................\n" +" 01 7d 03 00 00 c9 ff ff 98 e7 a2 02 81 88 ff ff .}..............\n" +" backtrace (crc 665fb8a7):\n" +" [] kmemleak_alloc+0x4b/0x80\n" +" [] kmem_cache_alloc_noprof+0x2ab/0x370\n" +" [] acpi_ps_alloc_op+0xdc/0xf0\n" +" [] acpi_ps_create_op+0x1c0/0x400\n" +" [] acpi_ps_parse_loop+0x16c/0xa60\n" +" [] acpi_ps_parse_aml+0x22f/0x5f0\n" +" [] acpi_ps_execute_method+0x152/0x380\n" +" [] acpi_ns_evaluate+0x31d/0x5e0\n" +" [] acpi_evaluate_object+0x206/0x490\n" +" [] __acpi_power_off.isra.0+0x22/0x70\n" +" [] acpi_turn_off_unused_power_resources+0xbb/0xf0\n" +" [] acpi_scan_init+0x119/0x290\n" +" [] acpi_init+0x23a/0x590\n" +" [] do_one_initcall+0x61/0x3d0\n" +" [] kernel_init_freeable+0x3e2/0x680\n" +" [] kernel_init+0x1b/0x170" +"unreferenced object 0xffff888102a2e798 (size 80):\n" +" comm \"swapper/0\", pid 1, jiffies 4294672730\n" +" hex dump (first 32 bytes):\n" +" 7c8 e2 a2 02 81 88 ff ff 0d 01 98 00 00 00 00 00 ................\n" +" 1b 7d 03 00 00 c9 ff ff 00 00 00 00 00 00 00 00 .}..............\n" +" backtrace (crc b7a23a1c):\n" +" [] kmemleak_alloc+0x4b/0x80\n" +" [] kmem_cache_alloc_noprof+0x2ab/0x370\n" +" [] acpi_ps_alloc_op+0xdc/0xf0\n" +" [] acpi_ps_create_op+0x1c0/0x400\n" +" [] acpi_ps_parse_loop+0x16c/0xa60\n" +" [] acpi_ps_parse_aml+0x22f/0x5f0\n" +" [] acpi_ps_execute_method+0x152/0x380\n" +" [] acpi_ns_evaluate+0x31d/0x5e0\n" +" [] acpi_evaluate_object+0x206/0x490\n" +" [] __acpi_power_off.isra.0+0x22/0x70\n" +" [] acpi_turn_off_unused_power_resources+0xbb/0xf0\n" +" [] acpi_scan_init+0x119/0x290\n" +" [] acpi_init+0x23a/0x590\n" +" [] do_one_initcall+0x61/0x3d0\n" +" [] kernel_init_freeable+0x3e2/0x680\n" +" [] kernel_init+0x1b/0x170" +"unreferenced object 0xffff888102a2e0b8 (size 80):\n" +" comm \"swapper/0\", pid 1, jiffies 4294672730\n" +" hex dump (first 32 bytes):\n" +" 98 e7 a2 02 81 88 ff ff 0d 01 2d 00 00 00 00 00 ..........-.....\n" +" 1c 7d 03 00 00 c9 ff ff 00 00 00 00 00 00 00 00 .}..............\n" +" backtrace (crc 14d67a9c):\n" +" [] kmemleak_alloc+0x4b/0x80\n" +" [] kmem_cache_alloc_noprof+0x2ab/0x370\n" +" [] acpi_ps_alloc_op+0xdc/0xf0\n" +" [] acpi_ps_create_op+0x1c0/0x400\n" +" [] acpi_ps_parse_loop+0x16c/0xa60\n" +" [] acpi_ps_parse_aml+0x22f/0x5f0\n" +" [] acpi_ps_execute_method+0x152/0x380\n" +" [] acpi_ns_evaluate+0x31d/0x5e0\n" +" [] acpi_evaluate_object+0x206/0x490\n" +" [] __acpi_power_off.isra.0+0x22/0x70\n" +" [] acpi_turn_off_unused_power_resources+0xbb/0xf0\n" +" [] acpi_scan_init+0x119/0x290\n" +" [] acpi_init+0x23a/0x590\n" +" [] do_one_initcall+0x61/0x3d0\n" +" [] kernel_init_freeable+0x3e2/0x680\n" +" [] kernel_init+0x1b/0x170\n"; + +static const char *runner_kmemleak_unit_testing_resdir = "/tmp"; + +igt_main +{ + char unit_testing_kmemleak_filepath[256] = "/tmp/runner_kmemleak_test_XXXXXX"; + int written_bytes; + int resdirfd; + int fd; + + igt_fixture { + /* resdirfd is used by runner_kmemleak() to store results */ + igt_assert(resdirfd = open(runner_kmemleak_unit_testing_resdir, + O_DIRECTORY | O_RDONLY)); + + /* Try to delete results file in case of leftovers, + * ignoring errors as the file may not exist + */ + unlinkat(resdirfd, KMEMLEAKRESFILENAME, 0); + + /* Creating a fake kmemleak file for unit testing */ + fd = mkstemp(unit_testing_kmemleak_filepath); + igt_assert(fd >= 0); + + written_bytes = write(fd, kmemleak_file_example, + strlen(kmemleak_file_example)); + igt_assert_eq(written_bytes, strlen(kmemleak_file_example)); + + close(fd); + + /* Initializing runner_kmemleak with a fake kmemleak file + * for unit testing + */ + igt_assert(runner_kmemleak_init(unit_testing_kmemleak_filepath)); + } + + igt_subtest_group { + igt_subtest("test_runner_kmemleak_once") + igt_assert(runner_kmemleak(NULL, resdirfd, false, true)); + + igt_subtest("test_runner_kmemleak_each") { + igt_assert(runner_kmemleak("test_name_1", resdirfd, + true, false)); + igt_assert(runner_kmemleak("test_name_2", resdirfd, + true, true)); + igt_assert(runner_kmemleak("test_name_3", resdirfd, + true, false)); + } + igt_fixture { + close(resdirfd); + } + } + igt_fixture + unlinkat(resdirfd, KMEMLEAKRESFILENAME, 0); +} -- 2.34.1