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1 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include <unistd.h> | 5 #include <unistd.h> |
6 | 6 |
7 #include "base/file_util.h" | 7 #include "base/file_util.h" |
8 #include "base/string_util.h" | 8 #include "base/string_util.h" |
9 #include "crash-reporter/kernel_collector.h" | 9 #include "crash-reporter/kernel_collector.h" |
10 #include "crash-reporter/system_logging_mock.h" | 10 #include "crash-reporter/system_logging_mock.h" |
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128 // Make sure the preserved dump is now clear. | 128 // Make sure the preserved dump is now clear. |
129 std::string dump; | 129 std::string dump; |
130 ASSERT_TRUE(collector_.LoadPreservedDump(&dump)); | 130 ASSERT_TRUE(collector_.LoadPreservedDump(&dump)); |
131 ASSERT_EQ(KernelCollector::kClearingSequence, dump); | 131 ASSERT_EQ(KernelCollector::kClearingSequence, dump); |
132 } | 132 } |
133 | 133 |
134 TEST_F(KernelCollectorTest, CollectOptedOut) { | 134 TEST_F(KernelCollectorTest, CollectOptedOut) { |
135 SetUpSuccessfulCollect(); | 135 SetUpSuccessfulCollect(); |
136 s_metrics = false; | 136 s_metrics = false; |
137 ASSERT_TRUE(collector_.Collect()); | 137 ASSERT_TRUE(collector_.Collect()); |
138 ASSERT_NE(std::string::npos, | 138 ASSERT_NE(std::string::npos, logging_.log().find("(ignoring)")); |
139 logging_.log().find("Crash not saved since metrics disabled")); | |
140 ASSERT_EQ(0, s_crashes); | 139 ASSERT_EQ(0, s_crashes); |
141 | 140 |
142 CheckPreservedDumpClear(); | 141 CheckPreservedDumpClear(); |
143 } | 142 } |
144 | 143 |
145 | |
146 TEST_F(KernelCollectorTest, CollectOK) { | 144 TEST_F(KernelCollectorTest, CollectOK) { |
147 SetUpSuccessfulCollect(); | 145 SetUpSuccessfulCollect(); |
148 ASSERT_TRUE(collector_.Collect()); | 146 ASSERT_TRUE(collector_.Collect()); |
149 ASSERT_EQ(1, s_crashes); | 147 ASSERT_EQ(1, s_crashes); |
150 static const char kNamePrefix[] = "Collected kernel crash diagnostics into "; | 148 ASSERT_NE(std::string::npos, logging_.log().find("(handling)")); |
| 149 static const char kNamePrefix[] = "Stored kcrash to "; |
151 size_t pos = logging_.log().find(kNamePrefix); | 150 size_t pos = logging_.log().find(kNamePrefix); |
152 ASSERT_NE(std::string::npos, pos); | 151 ASSERT_NE(std::string::npos, pos); |
153 pos += strlen(kNamePrefix); | 152 pos += strlen(kNamePrefix); |
154 std::string filename = logging_.log().substr(pos, std::string::npos); | 153 std::string filename = logging_.log().substr(pos, std::string::npos); |
155 // Take the name up until \n | 154 // Take the name up until \n |
156 size_t end_pos = filename.find_first_of("\n"); | 155 size_t end_pos = filename.find_first_of("\n"); |
157 ASSERT_NE(std::string::npos, end_pos); | 156 ASSERT_NE(std::string::npos, end_pos); |
158 filename = filename.substr(0, end_pos); | 157 filename = filename.substr(0, end_pos); |
159 ASSERT_EQ(0, filename.find(kTestCrashDirectory)); | 158 ASSERT_EQ(0, filename.find(kTestCrashDirectory)); |
160 ASSERT_TRUE(file_util::PathExists(FilePath(filename))); | 159 ASSERT_TRUE(file_util::PathExists(FilePath(filename))); |
161 std::string contents; | 160 std::string contents; |
162 ASSERT_TRUE(file_util::ReadFileToString(FilePath(filename), &contents)); | 161 ASSERT_TRUE(file_util::ReadFileToString(FilePath(filename), &contents)); |
163 ASSERT_EQ("something", contents); | 162 ASSERT_EQ("something", contents); |
164 | 163 |
165 CheckPreservedDumpClear(); | 164 CheckPreservedDumpClear(); |
166 } | 165 } |
167 | 166 |
| 167 TEST_F(KernelCollectorTest, ComputeKernelStackSignature) { |
| 168 const char kBugToPanic[] = |
| 169 "<4>[ 6066.829029] [<79039d16>] ? run_timer_softirq+0x165/0x1e6\n" |
| 170 "<4>[ 6066.829029] [<790340af>] ignore_old_stack+0xa6/0x143\n" |
| 171 "<0>[ 6066.829029] EIP: [<b82d7c15>] ieee80211_stop_tx_ba_session+" |
| 172 "0xa3/0xb5 [mac80211] SS:ESP 0068:7951febc\n" |
| 173 "<0>[ 6066.829029] CR2: 00000000323038a7\n" |
| 174 "<4>[ 6066.845422] ---[ end trace 12b058bb46c43500 ]---\n" |
| 175 "<0>[ 6066.845747] Kernel panic - not syncing: Fatal exception " |
| 176 "in interrupt\n" |
| 177 "<0>[ 6066.846902] Call Trace:\n" |
| 178 "<4>[ 6066.846902] [<7937a07b>] ? printk+0x14/0x19\n" |
| 179 "<4>[ 6066.949779] [<79379fc1>] panic+0x3e/0xe4\n" |
| 180 "<4>[ 6066.949971] [<7937c5c5>] oops_end+0x73/0x81\n" |
| 181 "<4>[ 6066.950208] [<7901b260>] no_context+0x10d/0x117\n"; |
| 182 std::string signature; |
| 183 EXPECT_TRUE( |
| 184 collector_.ComputeKernelStackSignature(kBugToPanic, &signature, false)); |
| 185 EXPECT_EQ("kernel-ieee80211_stop_tx_ba_session-DE253569", signature); |
| 186 |
| 187 const char kPCButNoStack[] = |
| 188 "<0>[ 6066.829029] EIP: [<b82d7c15>] ieee80211_stop_tx_ba_session+"; |
| 189 EXPECT_TRUE( |
| 190 collector_.ComputeKernelStackSignature(kPCButNoStack, &signature, false)); |
| 191 EXPECT_EQ("kernel-ieee80211_stop_tx_ba_session-00000000", signature); |
| 192 |
| 193 const char kStackButNoPC[] = |
| 194 "<4>[ 6066.829029] [<790340af>] __do_softirq+0xa6/0x143\n"; |
| 195 EXPECT_TRUE( |
| 196 collector_.ComputeKernelStackSignature(kStackButNoPC, &signature, false)); |
| 197 EXPECT_EQ("kernel--83615F0A", signature); |
| 198 |
| 199 const char kMissingEverything[] = |
| 200 "<4>[ 6066.829029] [<790340af>] ? __do_softirq+0xa6/0x143\n"; |
| 201 EXPECT_FALSE( |
| 202 collector_.ComputeKernelStackSignature(kMissingEverything, |
| 203 &signature, |
| 204 false)); |
| 205 |
| 206 const char kBreakmeBug[] = |
| 207 "<4>[ 180.492137] [<790970c6>] ? handle_mm_fault+0x67f/0x96d\n" |
| 208 "<4>[ 180.492137] [<790dcdfe>] ? proc_reg_write+0x5f/0x73\n" |
| 209 "<4>[ 180.492137] [<790e2224>] ? write_breakme+0x0/0x108\n" |
| 210 "<4>[ 180.492137] [<790dcd9f>] ? proc_reg_write+0x0/0x73\n" |
| 211 "<4>[ 180.492137] [<790ac0aa>] vfs_write+0x85/0xe4\n" |
| 212 "<0>[ 180.492137] Code: c6 44 05 b2 00 89 d8 e8 0c ef 09 00 85 c0 75 " |
| 213 "0b c7 00 00 00 00 00 e9 8e 00 00 00 ba e6 75 4b 79 89 d8 e8 f1 ee 09 " |
| 214 "00 85 c0 75 04 <0f> 0b eb fe ba 58 47 49 79 89 d8 e8 dd ee 09 00 85 " |
| 215 "c0 75 0a 68\n" |
| 216 "<0>[ 180.492137] EIP: [<790e22a4>] write_breakme+0x80/0x108 SS:ESP " |
| 217 "0068:aa3e9efc\n" |
| 218 "<4>[ 180.501800] ---[ end trace 2a6b72965e1b1523 ]---\n" |
| 219 "<0>[ 180.502026] Kernel panic - not syncing: Fatal exception\n" |
| 220 "<4>[ 180.502026] Call Trace:\n" |
| 221 "<4>[ 180.502806] [<79379aba>] ? printk+0x14/0x1a\n" |
| 222 "<4>[ 180.503033] [<79379a00>] panic+0x3e/0xe4\n" |
| 223 "<4>[ 180.503287] [<7937c005>] oops_end+0x73/0x81\n" |
| 224 "<4>[ 180.503520] [<790055dd>] die+0x58/0x5e\n" |
| 225 "<4>[ 180.503538] [<7937b96c>] do_trap+0x8e/0xa7\n" |
| 226 "<4>[ 180.503555] [<79003d70>] ? do_invalid_op+0x0/0x80\n"; |
| 227 |
| 228 EXPECT_TRUE( |
| 229 collector_.ComputeKernelStackSignature(kBreakmeBug, &signature, false)); |
| 230 EXPECT_EQ("kernel-write_breakme-122AB3CD", signature); |
| 231 |
| 232 const char kPCLineTooOld[] = |
| 233 "<4>[ 174.492137] [<790970c6>] ignored_function+0x67f/0x96d\n" |
| 234 "<4>[ 175.492137] [<790970c6>] ignored_function2+0x67f/0x96d\n" |
| 235 "<0>[ 174.492137] EIP: [<790e22a4>] write_breakme+0x80/0x108 SS:ESP " |
| 236 "0068:aa3e9efc\n" |
| 237 "<4>[ 180.501800] ---[ end trace 2a6b72965e1b1523 ]---\n" |
| 238 "<4>[ 180.502026] Call Trace:\n" |
| 239 "<0>[ 180.502026] Kernel panic - not syncing: Fatal exception\n" |
| 240 "<4>[ 180.502806] [<79379aba>] printk+0x14/0x1a\n"; |
| 241 |
| 242 EXPECT_TRUE( |
| 243 collector_.ComputeKernelStackSignature(kPCLineTooOld, &signature, false)); |
| 244 EXPECT_EQ("kernel-Fatal exception-ED4C84FE", signature); |
| 245 |
| 246 // Panic without EIP line. |
| 247 const char kExamplePanicOnly[] = |
| 248 "<0>[ 87.485611] Kernel panic - not syncing: Testing panic\n" |
| 249 "<4>[ 87.485630] Pid: 2825, comm: bash Tainted: G " |
| 250 "C 2.6.32.23+drm33.10 #1\n" |
| 251 "<4>[ 87.485639] Call Trace:\n" |
| 252 "<4>[ 87.485660] [<8133f71d>] ? printk+0x14/0x17\n" |
| 253 "<4>[ 87.485674] [<8133f663>] panic+0x3e/0xe4\n" |
| 254 "<4>[ 87.485689] [<810d062e>] write_breakme+0xaa/0x124\n"; |
| 255 EXPECT_TRUE( |
| 256 collector_.ComputeKernelStackSignature(kExamplePanicOnly, |
| 257 &signature, |
| 258 false)); |
| 259 EXPECT_EQ("kernel-Testing panic-E0FC3552", signature); |
| 260 |
| 261 // Long message. |
| 262 const char kTruncatedMessage[] = |
| 263 "<0>[ 87.485611] Kernel panic - not syncing: 01234567890123456789" |
| 264 "01234567890123456789X\n"; |
| 265 EXPECT_TRUE( |
| 266 collector_.ComputeKernelStackSignature(kTruncatedMessage, |
| 267 &signature, |
| 268 false)); |
| 269 EXPECT_EQ("kernel-0123456789012345678901234567890123456789-00000000", |
| 270 signature); |
| 271 |
| 272 } |
| 273 |
168 int main(int argc, char **argv) { | 274 int main(int argc, char **argv) { |
169 ::testing::InitGoogleTest(&argc, argv); | 275 ::testing::InitGoogleTest(&argc, argv); |
170 return RUN_ALL_TESTS(); | 276 return RUN_ALL_TESTS(); |
171 } | 277 } |
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