Steve Fung | 6c34c25 | 2015-08-20 00:27:30 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 16 | |
Steve Fung | 129bea5 | 2015-07-23 13:11:15 -0700 | [diff] [blame] | 17 | #include "kernel_collector_test.h" |
Ben Chan | 7e77690 | 2014-06-18 13:19:51 -0700 | [diff] [blame] | 18 | |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 19 | #include <unistd.h> |
| 20 | |
Ben Chan | ab6cc90 | 2014-09-05 08:21:06 -0700 | [diff] [blame] | 21 | #include <base/files/file_util.h> |
Ben Chan | 7e77690 | 2014-06-18 13:19:51 -0700 | [diff] [blame] | 22 | #include <base/files/scoped_temp_dir.h> |
| 23 | #include <base/strings/string_util.h> |
| 24 | #include <base/strings/stringprintf.h> |
Alex Vakulenko | 74dc624 | 2015-10-13 09:23:34 -0700 | [diff] [blame] | 25 | #include <brillo/syslog_logging.h> |
Ben Chan | 7e77690 | 2014-06-18 13:19:51 -0700 | [diff] [blame] | 26 | #include <gtest/gtest.h> |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 27 | |
Simon Que | 9f90aca | 2013-02-19 17:19:52 -0800 | [diff] [blame] | 28 | using base::FilePath; |
Mike Frysinger | a557c11 | 2014-02-05 22:55:39 -0500 | [diff] [blame] | 29 | using base::StringPrintf; |
Alex Vakulenko | 74dc624 | 2015-10-13 09:23:34 -0700 | [diff] [blame] | 30 | using brillo::FindLog; |
| 31 | using brillo::GetLog; |
Ken Mixter | a324932 | 2011-03-03 08:47:38 -0800 | [diff] [blame] | 32 | |
Daniel Erat | d257ea1 | 2015-01-28 10:23:28 -0700 | [diff] [blame] | 33 | namespace { |
| 34 | |
| 35 | int s_crashes = 0; |
| 36 | bool s_metrics = false; |
| 37 | |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 38 | void CountCrash() { |
| 39 | ++s_crashes; |
| 40 | } |
| 41 | |
| 42 | bool IsMetrics() { |
| 43 | return s_metrics; |
| 44 | } |
| 45 | |
Daniel Erat | d257ea1 | 2015-01-28 10:23:28 -0700 | [diff] [blame] | 46 | } // namespace |
| 47 | |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 48 | class KernelCollectorTest : public ::testing::Test { |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 49 | protected: |
| 50 | void WriteStringToFile(const FilePath &file_path, |
| 51 | const char *data) { |
James Hawkins | a28317d | 2016-02-26 11:24:38 -0800 | [diff] [blame] | 52 | unsigned int numBytesWritten = |
| 53 | base::WriteFile(file_path, data, strlen(data)); |
| 54 | ASSERT_EQ(strlen(data), numBytesWritten); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 55 | } |
| 56 | |
| 57 | void SetUpSuccessfulCollect(); |
Simon Glass | d74cc09 | 2011-04-06 10:47:01 -0700 | [diff] [blame] | 58 | void ComputeKernelStackSignatureCommon(); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 59 | |
Lei Zhang | 9b1f300 | 2014-04-24 02:10:57 -0700 | [diff] [blame] | 60 | const FilePath &kcrash_file() const { return test_kcrash_; } |
| 61 | const FilePath &test_crash_directory() const { return test_crash_directory_; } |
| 62 | |
Mike Frysinger | 6f891c5 | 2014-09-24 15:42:11 -0400 | [diff] [blame] | 63 | KernelCollectorMock collector_; |
Lei Zhang | 9b1f300 | 2014-04-24 02:10:57 -0700 | [diff] [blame] | 64 | |
| 65 | private: |
Alex Vakulenko | 0dfc9ce | 2014-08-14 12:55:41 -0700 | [diff] [blame] | 66 | void SetUp() override { |
Lei Zhang | 9b1f300 | 2014-04-24 02:10:57 -0700 | [diff] [blame] | 67 | s_crashes = 0; |
| 68 | s_metrics = true; |
Steve Fung | 6e13952 | 2015-02-05 14:54:16 -0800 | [diff] [blame] | 69 | |
| 70 | EXPECT_CALL(collector_, SetUpDBus()).WillRepeatedly(testing::Return()); |
| 71 | |
Lei Zhang | 9b1f300 | 2014-04-24 02:10:57 -0700 | [diff] [blame] | 72 | collector_.Initialize(CountCrash, IsMetrics); |
| 73 | ASSERT_TRUE(scoped_temp_dir_.CreateUniqueTempDir()); |
| 74 | test_kcrash_ = scoped_temp_dir_.path().Append("kcrash"); |
| 75 | ASSERT_TRUE(base::CreateDirectory(test_kcrash_)); |
| 76 | collector_.OverridePreservedDumpPath(test_kcrash_); |
| 77 | |
| 78 | test_kcrash_ = test_kcrash_.Append("dmesg-ramoops-0"); |
| 79 | ASSERT_FALSE(base::PathExists(test_kcrash_)); |
| 80 | |
| 81 | test_crash_directory_ = scoped_temp_dir_.path().Append("crash_directory"); |
| 82 | ASSERT_TRUE(base::CreateDirectory(test_crash_directory_)); |
Alex Vakulenko | 74dc624 | 2015-10-13 09:23:34 -0700 | [diff] [blame] | 83 | brillo::ClearLog(); |
Lei Zhang | 9b1f300 | 2014-04-24 02:10:57 -0700 | [diff] [blame] | 84 | } |
| 85 | |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 86 | FilePath test_kcrash_; |
Lei Zhang | 9b1f300 | 2014-04-24 02:10:57 -0700 | [diff] [blame] | 87 | FilePath test_crash_directory_; |
| 88 | base::ScopedTempDir scoped_temp_dir_; |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 89 | }; |
| 90 | |
Simon Glass | d74cc09 | 2011-04-06 10:47:01 -0700 | [diff] [blame] | 91 | TEST_F(KernelCollectorTest, ComputeKernelStackSignatureBase) { |
| 92 | // Make sure the normal build architecture is detected |
Ben Chan | 3c6b82c | 2014-07-23 14:52:14 -0700 | [diff] [blame] | 93 | EXPECT_NE(KernelCollector::kArchUnknown, collector_.arch()); |
Simon Glass | d74cc09 | 2011-04-06 10:47:01 -0700 | [diff] [blame] | 94 | } |
| 95 | |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 96 | TEST_F(KernelCollectorTest, LoadPreservedDump) { |
Lei Zhang | 9b1f300 | 2014-04-24 02:10:57 -0700 | [diff] [blame] | 97 | ASSERT_FALSE(base::PathExists(kcrash_file())); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 98 | std::string dump; |
Sergiu Iordache | 1ea8abe | 2011-08-03 16:11:36 -0700 | [diff] [blame] | 99 | dump.clear(); |
| 100 | |
Ben Zhang | 1c5533d | 2015-01-20 17:26:31 -0800 | [diff] [blame] | 101 | WriteStringToFile(kcrash_file(), |
| 102 | "CrashRecordWithoutRamoopsHeader\n<6>[ 0.078852]"); |
Ben Chan | 2076b90 | 2012-02-29 22:26:54 -0800 | [diff] [blame] | 103 | ASSERT_TRUE(collector_.LoadParameters()); |
Ben Zhang | 8e5340a | 2014-07-07 17:39:47 -0700 | [diff] [blame] | 104 | ASSERT_TRUE(collector_.LoadPreservedDump(&dump)); |
Ben Zhang | 1c5533d | 2015-01-20 17:26:31 -0800 | [diff] [blame] | 105 | ASSERT_EQ("CrashRecordWithoutRamoopsHeader\n<6>[ 0.078852]", dump); |
Kees Cook | ce9556e | 2011-11-04 20:49:09 +0000 | [diff] [blame] | 106 | |
Lei Zhang | 9b1f300 | 2014-04-24 02:10:57 -0700 | [diff] [blame] | 107 | WriteStringToFile(kcrash_file(), "====1.1\nsomething"); |
Ben Chan | 2076b90 | 2012-02-29 22:26:54 -0800 | [diff] [blame] | 108 | ASSERT_TRUE(collector_.LoadParameters()); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 109 | ASSERT_TRUE(collector_.LoadPreservedDump(&dump)); |
| 110 | ASSERT_EQ("something", dump); |
Ben Zhang | 1c5533d | 2015-01-20 17:26:31 -0800 | [diff] [blame] | 111 | |
| 112 | WriteStringToFile(kcrash_file(), "\x01\x02\xfe\xff random blob"); |
| 113 | ASSERT_TRUE(collector_.LoadParameters()); |
| 114 | ASSERT_FALSE(collector_.LoadPreservedDump(&dump)); |
| 115 | ASSERT_EQ("", dump); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | TEST_F(KernelCollectorTest, EnableMissingKernel) { |
| 119 | ASSERT_FALSE(collector_.Enable()); |
Ben Chan | 3c6b82c | 2014-07-23 14:52:14 -0700 | [diff] [blame] | 120 | ASSERT_FALSE(collector_.is_enabled()); |
Ken Mixter | a324932 | 2011-03-03 08:47:38 -0800 | [diff] [blame] | 121 | ASSERT_TRUE(FindLog( |
| 122 | "Kernel does not support crash dumping")); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 123 | ASSERT_EQ(s_crashes, 0); |
| 124 | } |
| 125 | |
| 126 | TEST_F(KernelCollectorTest, EnableOK) { |
Lei Zhang | 9b1f300 | 2014-04-24 02:10:57 -0700 | [diff] [blame] | 127 | WriteStringToFile(kcrash_file(), ""); |
Mike Frysinger | 6f891c5 | 2014-09-24 15:42:11 -0400 | [diff] [blame] | 128 | EXPECT_CALL(collector_, DumpDirMounted()).WillOnce(::testing::Return(true)); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 129 | ASSERT_TRUE(collector_.Enable()); |
Ben Chan | 3c6b82c | 2014-07-23 14:52:14 -0700 | [diff] [blame] | 130 | ASSERT_TRUE(collector_.is_enabled()); |
Ken Mixter | a324932 | 2011-03-03 08:47:38 -0800 | [diff] [blame] | 131 | ASSERT_TRUE(FindLog("Enabling kernel crash handling")); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 132 | ASSERT_EQ(s_crashes, 0); |
| 133 | } |
| 134 | |
Doug Anderson | 1e6b8bd | 2011-04-07 09:40:05 -0700 | [diff] [blame] | 135 | TEST_F(KernelCollectorTest, StripSensitiveDataBasic) { |
| 136 | // Basic tests of StripSensitiveData... |
| 137 | |
| 138 | // Make sure we work OK with a string w/ no MAC addresses. |
| 139 | const std::string kCrashWithNoMacsOrig = |
| 140 | "<7>[111566.131728] PM: Entering mem sleep\n"; |
| 141 | std::string crash_with_no_macs(kCrashWithNoMacsOrig); |
| 142 | collector_.StripSensitiveData(&crash_with_no_macs); |
| 143 | EXPECT_EQ(kCrashWithNoMacsOrig, crash_with_no_macs); |
| 144 | |
| 145 | // Make sure that we handle the case where there's nothing before/after the |
| 146 | // MAC address. |
| 147 | const std::string kJustAMacOrig = |
| 148 | "11:22:33:44:55:66"; |
| 149 | const std::string kJustAMacStripped = |
| 150 | "00:00:00:00:00:01"; |
| 151 | std::string just_a_mac(kJustAMacOrig); |
| 152 | collector_.StripSensitiveData(&just_a_mac); |
| 153 | EXPECT_EQ(kJustAMacStripped, just_a_mac); |
| 154 | |
| 155 | // Test MAC addresses crammed together to make sure it gets both of them. |
| 156 | // |
| 157 | // I'm not sure that the code does ideal on these two test cases (they don't |
| 158 | // look like two MAC addresses to me), but since we don't see them I think |
| 159 | // it's OK to behave as shown here. |
| 160 | const std::string kCrammedMacs1Orig = |
| 161 | "11:22:33:44:55:66:11:22:33:44:55:66"; |
| 162 | const std::string kCrammedMacs1Stripped = |
| 163 | "00:00:00:00:00:01:00:00:00:00:00:01"; |
| 164 | std::string crammed_macs_1(kCrammedMacs1Orig); |
| 165 | collector_.StripSensitiveData(&crammed_macs_1); |
| 166 | EXPECT_EQ(kCrammedMacs1Stripped, crammed_macs_1); |
| 167 | |
| 168 | const std::string kCrammedMacs2Orig = |
| 169 | "11:22:33:44:55:6611:22:33:44:55:66"; |
| 170 | const std::string kCrammedMacs2Stripped = |
| 171 | "00:00:00:00:00:0100:00:00:00:00:01"; |
| 172 | std::string crammed_macs_2(kCrammedMacs2Orig); |
| 173 | collector_.StripSensitiveData(&crammed_macs_2); |
| 174 | EXPECT_EQ(kCrammedMacs2Stripped, crammed_macs_2); |
| 175 | |
| 176 | // Test case-sensitiveness (we shouldn't be case-senstive). |
| 177 | const std::string kCapsMacOrig = |
| 178 | "AA:BB:CC:DD:EE:FF"; |
| 179 | const std::string kCapsMacStripped = |
| 180 | "00:00:00:00:00:01"; |
| 181 | std::string caps_mac(kCapsMacOrig); |
| 182 | collector_.StripSensitiveData(&caps_mac); |
| 183 | EXPECT_EQ(kCapsMacStripped, caps_mac); |
| 184 | |
| 185 | const std::string kLowerMacOrig = |
| 186 | "aa:bb:cc:dd:ee:ff"; |
| 187 | const std::string kLowerMacStripped = |
| 188 | "00:00:00:00:00:01"; |
| 189 | std::string lower_mac(kLowerMacOrig); |
| 190 | collector_.StripSensitiveData(&lower_mac); |
| 191 | EXPECT_EQ(kLowerMacStripped, lower_mac); |
| 192 | } |
| 193 | |
| 194 | TEST_F(KernelCollectorTest, StripSensitiveDataBulk) { |
| 195 | // Test calling StripSensitiveData w/ lots of MAC addresses in the "log". |
| 196 | |
| 197 | // Test that stripping code handles more than 256 unique MAC addresses, since |
| 198 | // that overflows past the last byte... |
| 199 | // We'll write up some code that generates 258 unique MAC addresses. Sorta |
| 200 | // cheating since the code is very similar to the current code in |
| 201 | // StripSensitiveData(), but would catch if someone changed that later. |
| 202 | std::string lotsa_macs_orig; |
| 203 | std::string lotsa_macs_stripped; |
| 204 | int i; |
| 205 | for (i = 0; i < 258; i++) { |
| 206 | lotsa_macs_orig += StringPrintf(" 11:11:11:11:%02X:%02x", |
| 207 | (i & 0xff00) >> 8, i & 0x00ff); |
| 208 | lotsa_macs_stripped += StringPrintf(" 00:00:00:00:%02X:%02x", |
| 209 | ((i+1) & 0xff00) >> 8, (i+1) & 0x00ff); |
| 210 | } |
| 211 | std::string lotsa_macs(lotsa_macs_orig); |
| 212 | collector_.StripSensitiveData(&lotsa_macs); |
| 213 | EXPECT_EQ(lotsa_macs_stripped, lotsa_macs); |
| 214 | } |
| 215 | |
| 216 | TEST_F(KernelCollectorTest, StripSensitiveDataSample) { |
| 217 | // Test calling StripSensitiveData w/ some actual lines from a real crash; |
| 218 | // included two MAC addresses (though replaced them with some bogusness). |
| 219 | const std::string kCrashWithMacsOrig = |
| 220 | "<6>[111567.195339] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES)" |
| 221 | " filtered out\n" |
| 222 | "<7>[108539.540144] wlan0: authenticate with 11:22:33:44:55:66 (try 1)\n" |
| 223 | "<7>[108539.554973] wlan0: associate with 11:22:33:44:55:66 (try 1)\n" |
| 224 | "<6>[110136.587583] usb0: register 'QCUSBNet2k' at usb-0000:00:1d.7-2," |
| 225 | " QCUSBNet Ethernet Device, 99:88:77:66:55:44\n" |
| 226 | "<7>[110964.314648] wlan0: deauthenticated from 11:22:33:44:55:66" |
| 227 | " (Reason: 6)\n" |
| 228 | "<7>[110964.325057] phy0: Removed STA 11:22:33:44:55:66\n" |
| 229 | "<7>[110964.325115] phy0: Destroyed STA 11:22:33:44:55:66\n" |
| 230 | "<6>[110969.219172] usb0: register 'QCUSBNet2k' at usb-0000:00:1d.7-2," |
| 231 | " QCUSBNet Ethernet Device, 99:88:77:66:55:44\n" |
| 232 | "<7>[111566.131728] PM: Entering mem sleep\n"; |
| 233 | const std::string kCrashWithMacsStripped = |
| 234 | "<6>[111567.195339] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES)" |
| 235 | " filtered out\n" |
| 236 | "<7>[108539.540144] wlan0: authenticate with 00:00:00:00:00:01 (try 1)\n" |
| 237 | "<7>[108539.554973] wlan0: associate with 00:00:00:00:00:01 (try 1)\n" |
| 238 | "<6>[110136.587583] usb0: register 'QCUSBNet2k' at usb-0000:00:1d.7-2," |
| 239 | " QCUSBNet Ethernet Device, 00:00:00:00:00:02\n" |
| 240 | "<7>[110964.314648] wlan0: deauthenticated from 00:00:00:00:00:01" |
| 241 | " (Reason: 6)\n" |
| 242 | "<7>[110964.325057] phy0: Removed STA 00:00:00:00:00:01\n" |
| 243 | "<7>[110964.325115] phy0: Destroyed STA 00:00:00:00:00:01\n" |
| 244 | "<6>[110969.219172] usb0: register 'QCUSBNet2k' at usb-0000:00:1d.7-2," |
| 245 | " QCUSBNet Ethernet Device, 00:00:00:00:00:02\n" |
| 246 | "<7>[111566.131728] PM: Entering mem sleep\n"; |
| 247 | std::string crash_with_macs(kCrashWithMacsOrig); |
| 248 | collector_.StripSensitiveData(&crash_with_macs); |
| 249 | EXPECT_EQ(kCrashWithMacsStripped, crash_with_macs); |
| 250 | } |
| 251 | |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 252 | TEST_F(KernelCollectorTest, CollectPreservedFileMissing) { |
| 253 | ASSERT_FALSE(collector_.Collect()); |
Ben Chan | 2076b90 | 2012-02-29 22:26:54 -0800 | [diff] [blame] | 254 | ASSERT_FALSE(FindLog("Stored kcrash to ")); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 255 | ASSERT_EQ(0, s_crashes); |
| 256 | } |
| 257 | |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 258 | void KernelCollectorTest::SetUpSuccessfulCollect() { |
Lei Zhang | 9b1f300 | 2014-04-24 02:10:57 -0700 | [diff] [blame] | 259 | collector_.ForceCrashDirectory(test_crash_directory()); |
| 260 | WriteStringToFile(kcrash_file(), "====1.1\nsomething"); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 261 | ASSERT_EQ(0, s_crashes); |
| 262 | } |
| 263 | |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 264 | TEST_F(KernelCollectorTest, CollectOptedOut) { |
| 265 | SetUpSuccessfulCollect(); |
| 266 | s_metrics = false; |
| 267 | ASSERT_TRUE(collector_.Collect()); |
Ken Mixter | a324932 | 2011-03-03 08:47:38 -0800 | [diff] [blame] | 268 | ASSERT_TRUE(FindLog("(ignoring - no consent)")); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 269 | ASSERT_EQ(0, s_crashes); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 270 | } |
| 271 | |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 272 | TEST_F(KernelCollectorTest, CollectOK) { |
| 273 | SetUpSuccessfulCollect(); |
| 274 | ASSERT_TRUE(collector_.Collect()); |
| 275 | ASSERT_EQ(1, s_crashes); |
Ken Mixter | a324932 | 2011-03-03 08:47:38 -0800 | [diff] [blame] | 276 | ASSERT_TRUE(FindLog("(handling)")); |
Ken Mixter | afcf808 | 2010-10-26 14:45:01 -0700 | [diff] [blame] | 277 | static const char kNamePrefix[] = "Stored kcrash to "; |
Alex Vakulenko | 74dc624 | 2015-10-13 09:23:34 -0700 | [diff] [blame] | 278 | std::string log = brillo::GetLog(); |
Ken Mixter | a324932 | 2011-03-03 08:47:38 -0800 | [diff] [blame] | 279 | size_t pos = log.find(kNamePrefix); |
Michael Krebs | 87a4950 | 2012-04-12 15:24:22 -0700 | [diff] [blame] | 280 | ASSERT_NE(std::string::npos, pos) |
| 281 | << "Did not find string \"" << kNamePrefix << "\" in log: {\n" |
| 282 | << log << "}"; |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 283 | pos += strlen(kNamePrefix); |
Ken Mixter | a324932 | 2011-03-03 08:47:38 -0800 | [diff] [blame] | 284 | std::string filename = log.substr(pos, std::string::npos); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 285 | // Take the name up until \n |
| 286 | size_t end_pos = filename.find_first_of("\n"); |
| 287 | ASSERT_NE(std::string::npos, end_pos); |
| 288 | filename = filename.substr(0, end_pos); |
James Hawkins | a28317d | 2016-02-26 11:24:38 -0800 | [diff] [blame] | 289 | ASSERT_EQ(0U, filename.find(test_crash_directory().value())); |
Mike Frysinger | a557c11 | 2014-02-05 22:55:39 -0500 | [diff] [blame] | 290 | ASSERT_TRUE(base::PathExists(FilePath(filename))); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 291 | std::string contents; |
Mike Frysinger | a557c11 | 2014-02-05 22:55:39 -0500 | [diff] [blame] | 292 | ASSERT_TRUE(base::ReadFileToString(FilePath(filename), &contents)); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 293 | ASSERT_EQ("something", contents); |
Ken Mixter | 0340316 | 2010-08-18 15:23:16 -0700 | [diff] [blame] | 294 | } |
| 295 | |
Simon Glass | d74cc09 | 2011-04-06 10:47:01 -0700 | [diff] [blame] | 296 | // Perform tests which are common across architectures |
| 297 | void KernelCollectorTest::ComputeKernelStackSignatureCommon() { |
| 298 | std::string signature; |
| 299 | |
| 300 | const char kStackButNoPC[] = |
| 301 | "<4>[ 6066.829029] [<790340af>] __do_softirq+0xa6/0x143\n"; |
| 302 | EXPECT_TRUE( |
| 303 | collector_.ComputeKernelStackSignature(kStackButNoPC, &signature, false)); |
| 304 | EXPECT_EQ("kernel--83615F0A", signature); |
| 305 | |
| 306 | const char kMissingEverything[] = |
| 307 | "<4>[ 6066.829029] [<790340af>] ? __do_softirq+0xa6/0x143\n"; |
| 308 | EXPECT_FALSE( |
| 309 | collector_.ComputeKernelStackSignature(kMissingEverything, |
| 310 | &signature, |
| 311 | false)); |
| 312 | |
| 313 | // Long message. |
| 314 | const char kTruncatedMessage[] = |
| 315 | "<0>[ 87.485611] Kernel panic - not syncing: 01234567890123456789" |
| 316 | "01234567890123456789X\n"; |
| 317 | EXPECT_TRUE( |
| 318 | collector_.ComputeKernelStackSignature(kTruncatedMessage, |
| 319 | &signature, |
| 320 | false)); |
| 321 | EXPECT_EQ("kernel-0123456789012345678901234567890123456789-00000000", |
| 322 | signature); |
| 323 | } |
| 324 | |
| 325 | TEST_F(KernelCollectorTest, ComputeKernelStackSignatureARM) { |
| 326 | const char kBugToPanic[] = |
| 327 | "<5>[ 123.412524] Modules linked in:\n" |
| 328 | "<5>[ 123.412534] CPU: 0 Tainted: G W " |
| 329 | "(2.6.37-01030-g51cee64 #153)\n" |
| 330 | "<5>[ 123.412552] PC is at write_breakme+0xd0/0x1b4\n" |
| 331 | "<5>[ 123.412560] LR is at write_breakme+0xc8/0x1b4\n" |
| 332 | "<5>[ 123.412569] pc : [<c0058220>] lr : [<c005821c>] " |
| 333 | "psr: 60000013\n" |
| 334 | "<5>[ 123.412574] sp : f4e0ded8 ip : c04d104c fp : 000e45e0\n" |
| 335 | "<5>[ 123.412581] r10: 400ff000 r9 : f4e0c000 r8 : 00000004\n" |
| 336 | "<5>[ 123.412589] r7 : f4e0df80 r6 : f4820c80 r5 : 00000004 " |
| 337 | "r4 : f4e0dee8\n" |
| 338 | "<5>[ 123.412598] r3 : 00000000 r2 : f4e0decc r1 : c05f88a9 " |
| 339 | "r0 : 00000039\n" |
| 340 | "<5>[ 123.412608] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA " |
| 341 | "ARM Segment user\n" |
| 342 | "<5>[ 123.412617] Control: 10c53c7d Table: 34dcc04a DAC: 00000015\n" |
| 343 | "<0>[ 123.412626] Process bash (pid: 1014, stack limit = 0xf4e0c2f8)\n" |
| 344 | "<0>[ 123.412634] Stack: (0xf4e0ded8 to 0xf4e0e000)\n" |
| 345 | "<0>[ 123.412641] dec0: " |
| 346 | " f4e0dee8 c0183678\n" |
| 347 | "<0>[ 123.412654] dee0: 00000000 00000000 00677562 0000081f c06a6a78 " |
| 348 | "400ff000 f4e0dfb0 00000000\n" |
| 349 | "<0>[ 123.412666] df00: bec7ab44 000b1719 bec7ab0c c004f498 bec7a314 " |
| 350 | "c024acc8 00000001 c018359c\n" |
| 351 | "<0>[ 123.412679] df20: f4e0df34 c04d10fc f5803c80 271beb39 000e45e0 " |
| 352 | "f5803c80 c018359c c017bfe0\n" |
| 353 | "<0>[ 123.412691] df40: 00000004 f4820c80 400ff000 f4e0df80 00000004 " |
| 354 | "f4e0c000 00000000 c01383e4\n" |
| 355 | "<0>[ 123.412703] df60: f4820c80 400ff000 f4820c80 400ff000 00000000 " |
| 356 | "00000000 00000004 c0138578\n" |
| 357 | "<0>[ 123.412715] df80: 00000000 00000000 00000004 00000000 00000004 " |
| 358 | "402f95d0 00000004 00000004\n" |
| 359 | "<0>[ 123.412727] dfa0: c0054984 c00547c0 00000004 402f95d0 00000001 " |
| 360 | "400ff000 00000004 00000000\n" |
| 361 | "<0>[ 123.412739] dfc0: 00000004 402f95d0 00000004 00000004 400ff000 " |
| 362 | "000c194c bec7ab58 000e45e0\n" |
| 363 | "<0>[ 123.412751] dfe0: 00000000 bec7aad8 40232520 40284e9c 60000010 " |
| 364 | "00000001 00000000 00000000\n" |
| 365 | "<5>[ 39.496577] Backtrace:\n" |
| 366 | "<5>[ 123.412782] [<c0058220>] (__bug+0x20/0x2c) from [<c0183678>] " |
| 367 | "(write_breakme+0xdc/0x1bc)\n" |
| 368 | "<5>[ 123.412798] [<c0183678>] (write_breakme+0xdc/0x1bc) from " |
| 369 | "[<c017bfe0>] (proc_reg_write+0x88/0x9c)\n"; |
| 370 | std::string signature; |
| 371 | |
Ben Chan | 3c6b82c | 2014-07-23 14:52:14 -0700 | [diff] [blame] | 372 | collector_.set_arch(KernelCollector::kArchArm); |
Simon Glass | d74cc09 | 2011-04-06 10:47:01 -0700 | [diff] [blame] | 373 | EXPECT_TRUE( |
| 374 | collector_.ComputeKernelStackSignature(kBugToPanic, &signature, false)); |
| 375 | EXPECT_EQ("kernel-write_breakme-97D3E92F", signature); |
| 376 | |
| 377 | ComputeKernelStackSignatureCommon(); |
| 378 | } |
| 379 | |
Ben Chan | 120c675 | 2014-07-22 21:06:09 -0700 | [diff] [blame] | 380 | TEST_F(KernelCollectorTest, ComputeKernelStackSignatureMIPS) { |
| 381 | const char kBugToPanic[] = |
| 382 | "<5>[ 3378.472000] lkdtm: Performing direct entry BUG\n" |
| 383 | "<5>[ 3378.476000] Kernel bug detected[#1]:\n" |
| 384 | "<5>[ 3378.484000] CPU: 0 PID: 185 Comm: dash Not tainted 3.14.0 #1\n" |
| 385 | "<5>[ 3378.488000] task: 8fed5220 ti: 8ec4a000 task.ti: 8ec4a000\n" |
| 386 | "<5>[ 3378.496000] $ 0 : 00000000 804018b8 804010f0 7785b507\n" |
| 387 | "<5>[ 3378.500000] $ 4 : 8061ab64 81204478 81205b20 00000000\n" |
| 388 | "<5>[ 3378.508000] $ 8 : 80830000 20746365 72746e65 55422079\n" |
| 389 | "<5>[ 3378.512000] $12 : 8ec4be94 000000fc 00000000 00000048\n" |
| 390 | "<5>[ 3378.520000] $16 : 00000004 8ef54000 80710000 00000002\n" |
| 391 | "<5>[ 3378.528000] $20 : 7765b6d4 00000004 7fffffff 00000002\n" |
| 392 | "<5>[ 3378.532000] $24 : 00000001 803dc0dc \n" |
| 393 | "<5>[ 3378.540000] $28 : 8ec4a000 8ec4be20 7775438d 804018b8\n" |
| 394 | "<5>[ 3378.544000] Hi : 00000000\n" |
| 395 | "<5>[ 3378.548000] Lo : 49bf8080\n" |
| 396 | "<5>[ 3378.552000] epc : 804010f0 lkdtm_do_action+0x68/0x3f8\n" |
| 397 | "<5>[ 3378.560000] Not tainted\n" |
| 398 | "<5>[ 3378.564000] ra : 804018b8 direct_entry+0x110/0x154\n" |
| 399 | "<5>[ 3378.568000] Status: 3100dc03 KERNEL EXL IE \n" |
| 400 | "<5>[ 3378.572000] Cause : 10800024\n" |
| 401 | "<5>[ 3378.576000] PrId : 0001a120 (MIPS interAptiv (multi))\n" |
| 402 | "<5>[ 3378.580000] Modules linked in: uinput cfg80211 nf_conntrack_ipv6 " |
| 403 | "nf_defrag_ipv6 ip6table_filter ip6_tables pcnet32 mii fuse " |
| 404 | "ppp_async ppp_generic slhc tun\n" |
| 405 | "<5>[ 3378.600000] Process dash (pid: 185, threadinfo=8ec4a000, " |
| 406 | "task=8fed5220, tls=77632490)\n" |
| 407 | "<5>[ 3378.608000] Stack : 00000006 ffffff9c 00000000 00000000 00000000 " |
| 408 | "00000000 8083454a 00000022\n" |
| 409 | "<5> 7765baa1 00001fee 80710000 8ef54000 8ec4bf08 00000002 " |
| 410 | "7765b6d4 00000004\n" |
| 411 | "<5> 7fffffff 00000002 7775438d 805e5158 7fffffff 00000002 " |
| 412 | "00000000 7785b507\n" |
| 413 | "<5> 806a96bc 00000004 8ef54000 8ec4bf08 00000002 804018b8 " |
| 414 | "80710000 806a98bc\n" |
| 415 | "<5> 00000002 00000020 00000004 8d515600 77756450 00000004 " |
| 416 | "8ec4bf08 802377e4\n" |
| 417 | "<5> ...\n" |
| 418 | "<5>[ 3378.652000] Call Trace:\n" |
| 419 | "<5>[ 3378.656000] [<804010f0>] lkdtm_do_action+0x68/0x3f8\n" |
| 420 | "<5>[ 3378.660000] [<804018b8>] direct_entry+0x110/0x154\n" |
| 421 | "<5>[ 3378.664000] [<802377e4>] vfs_write+0xe0/0x1bc\n" |
| 422 | "<5>[ 3378.672000] [<80237f90>] SyS_write+0x78/0xf8\n" |
| 423 | "<5>[ 3378.676000] [<80111888>] handle_sys+0x128/0x14c\n" |
| 424 | "<5>[ 3378.680000] \n" |
| 425 | "<5>[ 3378.684000] \n" |
| 426 | "<5>Code: 3c04806b 0c1793aa 248494f0 <000c000d> 3c04806b 248494fc " |
| 427 | "0c04cc7f 2405017a 08100514 \n" |
| 428 | "<5>[ 3378.696000] ---[ end trace 75067432f24bbc93 ]---\n"; |
| 429 | std::string signature; |
| 430 | |
Ben Chan | 3c6b82c | 2014-07-23 14:52:14 -0700 | [diff] [blame] | 431 | collector_.set_arch(KernelCollector::kArchMips); |
Ben Chan | 120c675 | 2014-07-22 21:06:09 -0700 | [diff] [blame] | 432 | EXPECT_TRUE( |
| 433 | collector_.ComputeKernelStackSignature(kBugToPanic, &signature, false)); |
| 434 | EXPECT_EQ("kernel-lkdtm_do_action-5E600A6B", signature); |
| 435 | |
| 436 | ComputeKernelStackSignatureCommon(); |
| 437 | } |
Simon Glass | d74cc09 | 2011-04-06 10:47:01 -0700 | [diff] [blame] | 438 | |
| 439 | TEST_F(KernelCollectorTest, ComputeKernelStackSignatureX86) { |
Ken Mixter | afcf808 | 2010-10-26 14:45:01 -0700 | [diff] [blame] | 440 | const char kBugToPanic[] = |
| 441 | "<4>[ 6066.829029] [<79039d16>] ? run_timer_softirq+0x165/0x1e6\n" |
| 442 | "<4>[ 6066.829029] [<790340af>] ignore_old_stack+0xa6/0x143\n" |
| 443 | "<0>[ 6066.829029] EIP: [<b82d7c15>] ieee80211_stop_tx_ba_session+" |
| 444 | "0xa3/0xb5 [mac80211] SS:ESP 0068:7951febc\n" |
| 445 | "<0>[ 6066.829029] CR2: 00000000323038a7\n" |
| 446 | "<4>[ 6066.845422] ---[ end trace 12b058bb46c43500 ]---\n" |
| 447 | "<0>[ 6066.845747] Kernel panic - not syncing: Fatal exception " |
| 448 | "in interrupt\n" |
| 449 | "<0>[ 6066.846902] Call Trace:\n" |
| 450 | "<4>[ 6066.846902] [<7937a07b>] ? printk+0x14/0x19\n" |
| 451 | "<4>[ 6066.949779] [<79379fc1>] panic+0x3e/0xe4\n" |
| 452 | "<4>[ 6066.949971] [<7937c5c5>] oops_end+0x73/0x81\n" |
| 453 | "<4>[ 6066.950208] [<7901b260>] no_context+0x10d/0x117\n"; |
| 454 | std::string signature; |
Simon Glass | d74cc09 | 2011-04-06 10:47:01 -0700 | [diff] [blame] | 455 | |
Ben Chan | 3c6b82c | 2014-07-23 14:52:14 -0700 | [diff] [blame] | 456 | collector_.set_arch(KernelCollector::kArchX86); |
Ken Mixter | afcf808 | 2010-10-26 14:45:01 -0700 | [diff] [blame] | 457 | EXPECT_TRUE( |
| 458 | collector_.ComputeKernelStackSignature(kBugToPanic, &signature, false)); |
| 459 | EXPECT_EQ("kernel-ieee80211_stop_tx_ba_session-DE253569", signature); |
| 460 | |
| 461 | const char kPCButNoStack[] = |
| 462 | "<0>[ 6066.829029] EIP: [<b82d7c15>] ieee80211_stop_tx_ba_session+"; |
| 463 | EXPECT_TRUE( |
| 464 | collector_.ComputeKernelStackSignature(kPCButNoStack, &signature, false)); |
| 465 | EXPECT_EQ("kernel-ieee80211_stop_tx_ba_session-00000000", signature); |
| 466 | |
Ken Mixter | afcf808 | 2010-10-26 14:45:01 -0700 | [diff] [blame] | 467 | const char kBreakmeBug[] = |
| 468 | "<4>[ 180.492137] [<790970c6>] ? handle_mm_fault+0x67f/0x96d\n" |
| 469 | "<4>[ 180.492137] [<790dcdfe>] ? proc_reg_write+0x5f/0x73\n" |
| 470 | "<4>[ 180.492137] [<790e2224>] ? write_breakme+0x0/0x108\n" |
| 471 | "<4>[ 180.492137] [<790dcd9f>] ? proc_reg_write+0x0/0x73\n" |
| 472 | "<4>[ 180.492137] [<790ac0aa>] vfs_write+0x85/0xe4\n" |
| 473 | "<0>[ 180.492137] Code: c6 44 05 b2 00 89 d8 e8 0c ef 09 00 85 c0 75 " |
| 474 | "0b c7 00 00 00 00 00 e9 8e 00 00 00 ba e6 75 4b 79 89 d8 e8 f1 ee 09 " |
| 475 | "00 85 c0 75 04 <0f> 0b eb fe ba 58 47 49 79 89 d8 e8 dd ee 09 00 85 " |
| 476 | "c0 75 0a 68\n" |
| 477 | "<0>[ 180.492137] EIP: [<790e22a4>] write_breakme+0x80/0x108 SS:ESP " |
| 478 | "0068:aa3e9efc\n" |
| 479 | "<4>[ 180.501800] ---[ end trace 2a6b72965e1b1523 ]---\n" |
| 480 | "<0>[ 180.502026] Kernel panic - not syncing: Fatal exception\n" |
| 481 | "<4>[ 180.502026] Call Trace:\n" |
| 482 | "<4>[ 180.502806] [<79379aba>] ? printk+0x14/0x1a\n" |
| 483 | "<4>[ 180.503033] [<79379a00>] panic+0x3e/0xe4\n" |
| 484 | "<4>[ 180.503287] [<7937c005>] oops_end+0x73/0x81\n" |
| 485 | "<4>[ 180.503520] [<790055dd>] die+0x58/0x5e\n" |
| 486 | "<4>[ 180.503538] [<7937b96c>] do_trap+0x8e/0xa7\n" |
| 487 | "<4>[ 180.503555] [<79003d70>] ? do_invalid_op+0x0/0x80\n"; |
| 488 | |
| 489 | EXPECT_TRUE( |
| 490 | collector_.ComputeKernelStackSignature(kBreakmeBug, &signature, false)); |
| 491 | EXPECT_EQ("kernel-write_breakme-122AB3CD", signature); |
| 492 | |
| 493 | const char kPCLineTooOld[] = |
| 494 | "<4>[ 174.492137] [<790970c6>] ignored_function+0x67f/0x96d\n" |
| 495 | "<4>[ 175.492137] [<790970c6>] ignored_function2+0x67f/0x96d\n" |
| 496 | "<0>[ 174.492137] EIP: [<790e22a4>] write_breakme+0x80/0x108 SS:ESP " |
| 497 | "0068:aa3e9efc\n" |
| 498 | "<4>[ 180.501800] ---[ end trace 2a6b72965e1b1523 ]---\n" |
| 499 | "<4>[ 180.502026] Call Trace:\n" |
| 500 | "<0>[ 180.502026] Kernel panic - not syncing: Fatal exception\n" |
| 501 | "<4>[ 180.502806] [<79379aba>] printk+0x14/0x1a\n"; |
| 502 | |
| 503 | EXPECT_TRUE( |
| 504 | collector_.ComputeKernelStackSignature(kPCLineTooOld, &signature, false)); |
| 505 | EXPECT_EQ("kernel-Fatal exception-ED4C84FE", signature); |
| 506 | |
| 507 | // Panic without EIP line. |
| 508 | const char kExamplePanicOnly[] = |
| 509 | "<0>[ 87.485611] Kernel panic - not syncing: Testing panic\n" |
| 510 | "<4>[ 87.485630] Pid: 2825, comm: bash Tainted: G " |
| 511 | "C 2.6.32.23+drm33.10 #1\n" |
| 512 | "<4>[ 87.485639] Call Trace:\n" |
| 513 | "<4>[ 87.485660] [<8133f71d>] ? printk+0x14/0x17\n" |
| 514 | "<4>[ 87.485674] [<8133f663>] panic+0x3e/0xe4\n" |
| 515 | "<4>[ 87.485689] [<810d062e>] write_breakme+0xaa/0x124\n"; |
| 516 | EXPECT_TRUE( |
| 517 | collector_.ComputeKernelStackSignature(kExamplePanicOnly, |
| 518 | &signature, |
| 519 | false)); |
| 520 | EXPECT_EQ("kernel-Testing panic-E0FC3552", signature); |
Luigi Semenzato | f640099 | 2011-12-29 13:18:35 -0800 | [diff] [blame] | 521 | |
| 522 | // Panic from hung task. |
| 523 | const char kHungTaskBreakMe[] = |
| 524 | "<3>[ 720.459157] INFO: task bash:2287 blocked blah blah\n" |
| 525 | "<5>[ 720.459282] Call Trace:\n" |
| 526 | "<5>[ 720.459307] [<810a457b>] ? __dentry_open+0x186/0x23e\n" |
| 527 | "<5>[ 720.459323] [<810b9c71>] ? mntput_no_expire+0x29/0xe2\n" |
| 528 | "<5>[ 720.459336] [<810b9d48>] ? mntput+0x1e/0x20\n" |
| 529 | "<5>[ 720.459350] [<810ad135>] ? path_put+0x1a/0x1d\n" |
| 530 | "<5>[ 720.459366] [<8137cacc>] schedule+0x4d/0x4f\n" |
| 531 | "<5>[ 720.459379] [<8137ccfb>] schedule_timeout+0x26/0xaf\n" |
| 532 | "<5>[ 720.459394] [<8102127e>] ? should_resched+0xd/0x27\n" |
| 533 | "<5>[ 720.459409] [<81174d1f>] ? _copy_from_user+0x3c/0x50\n" |
| 534 | "<5>[ 720.459423] [<8137cd9e>] " |
| 535 | "schedule_timeout_uninterruptible+0x1a/0x1c\n" |
| 536 | "<5>[ 720.459438] [<810dee63>] write_breakme+0xb3/0x178\n" |
| 537 | "<5>[ 720.459453] [<810dedb0>] ? meminfo_proc_show+0x2f2/0x2f2\n" |
| 538 | "<5>[ 720.459467] [<810d94ae>] proc_reg_write+0x6d/0x87\n" |
| 539 | "<5>[ 720.459481] [<810d9441>] ? proc_reg_poll+0x76/0x76\n" |
| 540 | "<5>[ 720.459493] [<810a5e9e>] vfs_write+0x79/0xa5\n" |
| 541 | "<5>[ 720.459505] [<810a6011>] sys_write+0x40/0x65\n" |
| 542 | "<5>[ 720.459519] [<8137e677>] sysenter_do_call+0x12/0x26\n" |
| 543 | "<0>[ 720.459530] Kernel panic - not syncing: hung_task: blocked tasks\n" |
| 544 | "<5>[ 720.459768] Pid: 31, comm: khungtaskd Tainted: " |
| 545 | "G C 3.0.8 #1\n" |
| 546 | "<5>[ 720.459998] Call Trace:\n" |
| 547 | "<5>[ 720.460140] [<81378a35>] panic+0x53/0x14a\n" |
| 548 | "<5>[ 720.460312] [<8105f875>] watchdog+0x15b/0x1a0\n" |
| 549 | "<5>[ 720.460495] [<8105f71a>] ? hung_task_panic+0x16/0x16\n" |
| 550 | "<5>[ 720.460693] [<81043af3>] kthread+0x67/0x6c\n" |
| 551 | "<5>[ 720.460862] [<81043a8c>] ? __init_kthread_worker+0x2d/0x2d\n" |
| 552 | "<5>[ 720.461106] [<8137eb9e>] kernel_thread_helper+0x6/0x10\n"; |
| 553 | |
| 554 | EXPECT_TRUE( |
| 555 | collector_.ComputeKernelStackSignature(kHungTaskBreakMe, |
| 556 | &signature, |
| 557 | false)); |
| 558 | |
| 559 | EXPECT_EQ("kernel-(HANG)-hung_task: blocked tasks-600B37EA", signature); |
| 560 | |
| 561 | // Panic with all question marks in the last stack trace. |
| 562 | const char kUncertainStackTrace[] = |
| 563 | "<0>[56279.689669] ------------[ cut here ]------------\n" |
| 564 | "<2>[56279.689677] kernel BUG at /build/x86-alex/tmp/portage/" |
| 565 | "sys-kernel/chromeos-kernel-0.0.1-r516/work/chromeos-kernel-0.0.1/" |
| 566 | "kernel/timer.c:844!\n" |
| 567 | "<0>[56279.689683] invalid opcode: 0000 [#1] SMP \n" |
| 568 | "<0>[56279.689688] last sysfs file: /sys/power/state\n" |
| 569 | "<5>[56279.689692] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat " |
| 570 | "gobi usbnet tsl2583(C) industrialio(C) snd_hda_codec_realtek " |
| 571 | "snd_hda_intel i2c_dev snd_hda_codec snd_hwdep qcserial snd_pcm usb_wwan " |
| 572 | "i2c_i801 snd_timer nm10_gpio snd_page_alloc rtc_cmos fuse " |
| 573 | "nf_conntrack_ipv6 nf_defrag_ipv6 uvcvideo videodev ip6table_filter " |
| 574 | "ath9k ip6_tables ipv6 mac80211 ath9k_common ath9k_hw ath cfg80211 " |
| 575 | "xt_mark\n" |
| 576 | "<5>[56279.689731] \n" |
| 577 | "<5>[56279.689738] Pid: 24607, comm: powerd_suspend Tainted: G " |
| 578 | "WC 2.6.38.3+ #1 SAMSUNG ELECTRONICS CO., LTD. Alex/G100 \n" |
| 579 | "<5>[56279.689748] EIP: 0060:[<8103e3ea>] EFLAGS: 00210286 CPU: 3\n" |
| 580 | "<5>[56279.689758] EIP is at add_timer+0xd/0x1b\n" |
| 581 | "<5>[56279.689762] EAX: f5e00684 EBX: f5e003c0 ECX: 00000002 EDX: " |
| 582 | "00200246\n" |
| 583 | "<5>[56279.689767] ESI: f5e003c0 EDI: d28bc03c EBP: d2be5e40 ESP: " |
| 584 | "d2be5e40\n" |
| 585 | "<5>[56279.689772] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068\n" |
| 586 | "<0>[56279.689778] Process powerd_suspend (pid: 24607, ti=d2be4000 " |
| 587 | "task=f5dc9b60 task.ti=d2be4000)\n" |
| 588 | "<0>[56279.689782] Stack:\n" |
| 589 | "<5>[56279.689785] d2be5e4c f8dccced f4ac02c0 d2be5e70 f8ddc752 " |
| 590 | "f5e003c0 f4ac0458 f4ac092c\n" |
| 591 | "<5>[56279.689797] f4ac043c f4ac02c0 f4ac0000 f4ac007c d2be5e7c " |
| 592 | "f8dd4a33 f4ac0164 d2be5e94\n" |
| 593 | "<5>[56279.689809] f87e0304 f69ff0cc f4ac0164 f87e02a4 f4ac0164 " |
| 594 | "d2be5eb0 81248968 00000000\n" |
| 595 | "<0>[56279.689821] Call Trace:\n" |
| 596 | "<5>[56279.689840] [<f8dccced>] ieee80211_sta_restart+0x25/0x8c " |
| 597 | "[mac80211]\n" |
| 598 | "<5>[56279.689854] [<f8ddc752>] ieee80211_reconfig+0x2e9/0x339 " |
| 599 | "[mac80211]\n" |
| 600 | "<5>[56279.689869] [<f8dd4a33>] ieee80211_aes_cmac+0x182d/0x184e " |
| 601 | "[mac80211]\n" |
| 602 | "<5>[56279.689883] [<f87e0304>] cfg80211_get_dev_from_info+0x29b/0x2c0 " |
| 603 | "[cfg80211]\n" |
| 604 | "<5>[56279.689895] [<f87e02a4>] ? " |
| 605 | "cfg80211_get_dev_from_info+0x23b/0x2c0 [cfg80211]\n" |
| 606 | "<5>[56279.689904] [<81248968>] legacy_resume+0x25/0x5d\n" |
| 607 | "<5>[56279.689910] [<812490ae>] device_resume+0xdd/0x110\n" |
| 608 | "<5>[56279.689917] [<812491c2>] dpm_resume_end+0xe1/0x271\n" |
| 609 | "<5>[56279.689925] [<81060481>] suspend_devices_and_enter+0x18b/0x1de\n" |
| 610 | "<5>[56279.689932] [<810605ba>] enter_state+0xe6/0x132\n" |
| 611 | "<5>[56279.689939] [<8105fd4b>] state_store+0x91/0x9d\n" |
| 612 | "<5>[56279.689945] [<8105fcba>] ? state_store+0x0/0x9d\n" |
| 613 | "<5>[56279.689953] [<81178fb1>] kobj_attr_store+0x16/0x22\n" |
| 614 | "<5>[56279.689961] [<810eea5e>] sysfs_write_file+0xc1/0xec\n" |
| 615 | "<5>[56279.689969] [<810af443>] vfs_write+0x8f/0x101\n" |
| 616 | "<5>[56279.689975] [<810ee99d>] ? sysfs_write_file+0x0/0xec\n" |
| 617 | "<5>[56279.689982] [<810af556>] sys_write+0x40/0x65\n" |
| 618 | "<5>[56279.689989] [<81002d57>] sysenter_do_call+0x12/0x26\n" |
| 619 | "<0>[56279.689993] Code: c1 d3 e2 4a 89 55 f4 f7 d2 21 f2 6a 00 31 c9 89 " |
| 620 | "d8 e8 6e fd ff ff 5a 8d 65 f8 5b 5e 5d c3 55 89 e5 3e 8d 74 26 00 83 38 " |
| 621 | "00 74 04 <0f> 0b eb fe 8b 50 08 e8 6f ff ff ff 5d c3 55 89 e5 3e 8d 74 " |
| 622 | "26 \n" |
| 623 | "<0>[56279.690009] EIP: [<8103e3ea>] add_timer+0xd/0x1b SS:ESP " |
| 624 | "0068:d2be5e40\n" |
| 625 | "<4>[56279.690113] ---[ end trace b71141bb67c6032a ]---\n" |
| 626 | "<7>[56279.694069] wlan0: deauthenticated from 00:00:00:00:00:01 " |
| 627 | "(Reason: 6)\n" |
| 628 | "<0>[56279.703465] Kernel panic - not syncing: Fatal exception\n" |
| 629 | "<5>[56279.703471] Pid: 24607, comm: powerd_suspend Tainted: G D " |
| 630 | "WC 2.6.38.3+ #1\n" |
| 631 | "<5>[56279.703475] Call Trace:\n" |
| 632 | "<5>[56279.703483] [<8136648c>] ? panic+0x55/0x152\n" |
| 633 | "<5>[56279.703491] [<810057fa>] ? oops_end+0x73/0x81\n" |
| 634 | "<5>[56279.703497] [<81005a44>] ? die+0xed/0xf5\n" |
| 635 | "<5>[56279.703503] [<810033cb>] ? do_trap+0x7a/0x80\n" |
| 636 | "<5>[56279.703509] [<8100369b>] ? do_invalid_op+0x0/0x80\n" |
| 637 | "<5>[56279.703515] [<81003711>] ? do_invalid_op+0x76/0x80\n" |
| 638 | "<5>[56279.703522] [<8103e3ea>] ? add_timer+0xd/0x1b\n" |
| 639 | "<5>[56279.703529] [<81025e23>] ? check_preempt_curr+0x2e/0x69\n" |
| 640 | "<5>[56279.703536] [<8102ef28>] ? ttwu_post_activation+0x5a/0x11b\n" |
| 641 | "<5>[56279.703543] [<8102fa8d>] ? try_to_wake_up+0x213/0x21d\n" |
| 642 | "<5>[56279.703550] [<81368b7f>] ? error_code+0x67/0x6c\n" |
| 643 | "<5>[56279.703557] [<8103e3ea>] ? add_timer+0xd/0x1b\n" |
| 644 | "<5>[56279.703577] [<f8dccced>] ? ieee80211_sta_restart+0x25/0x8c " |
| 645 | "[mac80211]\n" |
| 646 | "<5>[56279.703591] [<f8ddc752>] ? ieee80211_reconfig+0x2e9/0x339 " |
| 647 | "[mac80211]\n" |
| 648 | "<5>[56279.703605] [<f8dd4a33>] ? ieee80211_aes_cmac+0x182d/0x184e " |
| 649 | "[mac80211]\n" |
| 650 | "<5>[56279.703618] [<f87e0304>] ? " |
| 651 | "cfg80211_get_dev_from_info+0x29b/0x2c0 [cfg80211]\n" |
| 652 | "<5>[56279.703630] [<f87e02a4>] ? " |
| 653 | "cfg80211_get_dev_from_info+0x23b/0x2c0 [cfg80211]\n" |
| 654 | "<5>[56279.703637] [<81248968>] ? legacy_resume+0x25/0x5d\n" |
| 655 | "<5>[56279.703643] [<812490ae>] ? device_resume+0xdd/0x110\n" |
| 656 | "<5>[56279.703649] [<812491c2>] ? dpm_resume_end+0xe1/0x271\n" |
| 657 | "<5>[56279.703657] [<81060481>] ? " |
| 658 | "suspend_devices_and_enter+0x18b/0x1de\n" |
| 659 | "<5>[56279.703663] [<810605ba>] ? enter_state+0xe6/0x132\n" |
| 660 | "<5>[56279.703670] [<8105fd4b>] ? state_store+0x91/0x9d\n" |
| 661 | "<5>[56279.703676] [<8105fcba>] ? state_store+0x0/0x9d\n" |
| 662 | "<5>[56279.703683] [<81178fb1>] ? kobj_attr_store+0x16/0x22\n" |
| 663 | "<5>[56279.703690] [<810eea5e>] ? sysfs_write_file+0xc1/0xec\n" |
| 664 | "<5>[56279.703697] [<810af443>] ? vfs_write+0x8f/0x101\n" |
| 665 | "<5>[56279.703703] [<810ee99d>] ? sysfs_write_file+0x0/0xec\n" |
| 666 | "<5>[56279.703709] [<810af556>] ? sys_write+0x40/0x65\n" |
| 667 | "<5>[56279.703716] [<81002d57>] ? sysenter_do_call+0x12/0x26\n"; |
| 668 | |
| 669 | EXPECT_TRUE( |
| 670 | collector_.ComputeKernelStackSignature(kUncertainStackTrace, |
| 671 | &signature, |
| 672 | false)); |
| 673 | // The first trace contains only uncertain entries and its hash is 00000000, |
| 674 | // so, if we used that, the signature would be kernel-add_timer-00000000. |
| 675 | // Instead we use the second-to-last trace for the hash. |
| 676 | EXPECT_EQ("kernel-add_timer-B5178878", signature); |
| 677 | |
Simon Glass | d74cc09 | 2011-04-06 10:47:01 -0700 | [diff] [blame] | 678 | ComputeKernelStackSignatureCommon(); |
Ken Mixter | afcf808 | 2010-10-26 14:45:01 -0700 | [diff] [blame] | 679 | } |