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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 "chromeos/syslog_logging.h" | 9 #include "chromeos/syslog_logging.h" |
10 #include "chromeos/test_helpers.h" | 10 #include "chromeos/test_helpers.h" |
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43 } | 43 } |
44 protected: | 44 protected: |
45 void WriteStringToFile(const FilePath &file_path, | 45 void WriteStringToFile(const FilePath &file_path, |
46 const char *data) { | 46 const char *data) { |
47 ASSERT_EQ(strlen(data), | 47 ASSERT_EQ(strlen(data), |
48 file_util::WriteFile(file_path, data, strlen(data))); | 48 file_util::WriteFile(file_path, data, strlen(data))); |
49 } | 49 } |
50 | 50 |
51 void SetUpSuccessfulCollect(); | 51 void SetUpSuccessfulCollect(); |
52 void CheckPreservedDumpClear(); | 52 void CheckPreservedDumpClear(); |
53 void DoCommonTests(); | |
53 | 54 |
54 KernelCollector collector_; | 55 KernelCollector collector_; |
55 FilePath test_kcrash_; | 56 FilePath test_kcrash_; |
56 }; | 57 }; |
57 | 58 |
58 TEST_F(KernelCollectorTest, LoadPreservedDump) { | 59 TEST_F(KernelCollectorTest, LoadPreservedDump) { |
59 ASSERT_FALSE(file_util::PathExists(test_kcrash_)); | 60 ASSERT_FALSE(file_util::PathExists(test_kcrash_)); |
60 std::string dump; | 61 std::string dump; |
61 ASSERT_FALSE(collector_.LoadPreservedDump(&dump)); | 62 ASSERT_FALSE(collector_.LoadPreservedDump(&dump)); |
62 WriteStringToFile(test_kcrash_, ""); | 63 WriteStringToFile(test_kcrash_, ""); |
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155 filename = filename.substr(0, end_pos); | 156 filename = filename.substr(0, end_pos); |
156 ASSERT_EQ(0, filename.find(kTestCrashDirectory)); | 157 ASSERT_EQ(0, filename.find(kTestCrashDirectory)); |
157 ASSERT_TRUE(file_util::PathExists(FilePath(filename))); | 158 ASSERT_TRUE(file_util::PathExists(FilePath(filename))); |
158 std::string contents; | 159 std::string contents; |
159 ASSERT_TRUE(file_util::ReadFileToString(FilePath(filename), &contents)); | 160 ASSERT_TRUE(file_util::ReadFileToString(FilePath(filename), &contents)); |
160 ASSERT_EQ("something", contents); | 161 ASSERT_EQ("something", contents); |
161 | 162 |
162 CheckPreservedDumpClear(); | 163 CheckPreservedDumpClear(); |
163 } | 164 } |
164 | 165 |
165 TEST_F(KernelCollectorTest, ComputeKernelStackSignature) { | 166 TEST_F(KernelCollectorTest, ComputeKernelStackSignatureBase) { |
167 // Make sure the normal build architecture is detected | |
168 EXPECT_TRUE(collector_.GetArch() != KernelCollector::archUnknown); | |
169 } | |
170 | |
171 TEST_F(KernelCollectorTest, ComputeKernelStackSignatureARM) { | |
172 const char kBugToPanic[] = | |
173 "<5>[ 123.412524] Modules linked in:\n" | |
174 "<5>[ 123.412534] CPU: 0 Tainted: G W " | |
175 "(2.6.37-01030-g51cee64 #153)\n" | |
176 "<5>[ 123.412552] PC is at write_breakme+0xd0/0x1b4\n" | |
177 "<5>[ 123.412560] LR is at write_breakme+0xc8/0x1b4\n" | |
178 "<5>[ 123.412569] pc : [<c0058220>] lr : [<c005821c>] " | |
179 "psr: 60000013\n" | |
180 "<5>[ 123.412574] sp : f4e0ded8 ip : c04d104c fp : 000e45e0\n" | |
181 "<5>[ 123.412581] r10: 400ff000 r9 : f4e0c000 r8 : 00000004\n" | |
182 "<5>[ 123.412589] r7 : f4e0df80 r6 : f4820c80 r5 : 00000004 " | |
183 "r4 : f4e0dee8\n" | |
184 "<5>[ 123.412598] r3 : 00000000 r2 : f4e0decc r1 : c05f88a9 " | |
185 "r0 : 00000039\n" | |
186 "<5>[ 123.412608] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA " | |
187 "ARM Segment user\n" | |
188 "<5>[ 123.412617] Control: 10c53c7d Table: 34dcc04a DAC: 00000015\n" | |
189 "<0>[ 123.412626] Process bash (pid: 1014, stack limit = 0xf4e0c2f8)\n" | |
190 "<0>[ 123.412634] Stack: (0xf4e0ded8 to 0xf4e0e000)\n" | |
191 "<0>[ 123.412641] dec0: " | |
192 " f4e0dee8 c0183678\n" | |
193 "<0>[ 123.412654] dee0: 00000000 00000000 00677562 0000081f c06a6a78 " | |
194 "400ff000 f4e0dfb0 00000000\n" | |
195 "<0>[ 123.412666] df00: bec7ab44 000b1719 bec7ab0c c004f498 bec7a314 " | |
196 "c024acc8 00000001 c018359c\n" | |
197 "<0>[ 123.412679] df20: f4e0df34 c04d10fc f5803c80 271beb39 000e45e0 " | |
198 "f5803c80 c018359c c017bfe0\n" | |
199 "<0>[ 123.412691] df40: 00000004 f4820c80 400ff000 f4e0df80 00000004 " | |
200 "f4e0c000 00000000 c01383e4\n" | |
201 "<0>[ 123.412703] df60: f4820c80 400ff000 f4820c80 400ff000 00000000 " | |
202 "00000000 00000004 c0138578\n" | |
203 "<0>[ 123.412715] df80: 00000000 00000000 00000004 00000000 00000004 " | |
204 "402f95d0 00000004 00000004\n" | |
205 "<0>[ 123.412727] dfa0: c0054984 c00547c0 00000004 402f95d0 00000001 " | |
206 "400ff000 00000004 00000000\n" | |
207 "<0>[ 123.412739] dfc0: 00000004 402f95d0 00000004 00000004 400ff000 " | |
208 "000c194c bec7ab58 000e45e0\n" | |
209 "<0>[ 123.412751] dfe0: 00000000 bec7aad8 40232520 40284e9c 60000010 " | |
210 "00000001 00000000 00000000\n" | |
211 "<5>[ 39.496577] Backtrace:\n" | |
212 "<5>[ 123.412782] [<c0058220>] (__bug+0x20/0x2c) from [<c0183678>] " | |
213 "(write_breakme+0xdc/0x1bc)\n" | |
214 "<5>[ 123.412798] [<c0183678>] (write_breakme+0xdc/0x1bc) from " | |
215 "[<c017bfe0>] (proc_reg_write+0x88/0x9c)\n"; | |
216 std::string signature; | |
217 | |
218 collector_.SetArch(KernelCollector::archArm); | |
219 EXPECT_TRUE( | |
220 collector_.ComputeKernelStackSignature(kBugToPanic, &signature, false)); | |
221 EXPECT_EQ("kernel-write_breakme-97D3E92F", signature); | |
222 | |
223 const char kPCButNoStack[] = | |
224 "<5>[ 123.412552] PC is at write_breakme+0xd0/0x1b4"; | |
225 EXPECT_TRUE( | |
226 collector_.ComputeKernelStackSignature(kPCButNoStack, &signature, false)); | |
227 EXPECT_EQ("kernel-write_breakme-00000000", signature); | |
228 | |
229 const char kPCLineTooOld[] = | |
230 "<4>[ 123.402137] [<790970c6>] ignored_function+0x67f/0x96d\n" | |
231 "<5>[ 123.412552] PC is at write_breakme+0xd0/0x1b4\n" | |
232 "<4>[ 180.502026] Backtrace:\n" | |
233 "<0>[ 180.502026] Kernel panic - not syncing: Fatal exception\n" | |
234 "<4>[ 180.502806] [<79379aba>] printk+0x14/0x1a\n"; | |
235 | |
236 EXPECT_TRUE( | |
237 collector_.ComputeKernelStackSignature(kPCLineTooOld, &signature, false)); | |
238 EXPECT_EQ("kernel-Fatal exception-ED4C84FE", signature); | |
239 | |
240 // Panic without EIP line. | |
241 const char kExamplePanicOnly[] = | |
242 "<0>[ 39.543808] Kernel panic - not syncing: Testing panic\n" | |
243 "<5>[ 39.543815] Backtrace:\n" | |
244 "<5>[ 39.543840] [<c005ca30>] (unwind_backtrace+0x0/0xf8) from " | |
245 "[<c04caf38>] (panic+0x68/0x190)\n" | |
246 "<5>[ 39.543856] [<c04caf38>] (panic+0x68/0x190) from [<c005a93c>] " | |
247 "(die+0x2bc/0x330)\n" | |
248 "<5>[ 39.543871] [<c005a93c>] (die+0x2bc/0x330) from [<c00511e0>] " | |
249 "(do_undefinstr+0x120/0x138)\n" | |
250 "<5>[ 39.543892] [<c00511e0>] (do_undefinstr+0x120/0x138) from " | |
251 "[<c04ced84>] (__und_svc+0x44/0x60)\n"; | |
252 EXPECT_TRUE( | |
253 collector_.ComputeKernelStackSignature(kExamplePanicOnly, | |
254 &signature, | |
255 false)); | |
256 EXPECT_EQ("kernel-Testing panic-735A6297", signature); | |
257 DoCommonTests(); | |
258 } | |
259 | |
260 | |
261 TEST_F(KernelCollectorTest, ComputeKernelStackSignatureX86) { | |
166 const char kBugToPanic[] = | 262 const char kBugToPanic[] = |
167 "<4>[ 6066.829029] [<79039d16>] ? run_timer_softirq+0x165/0x1e6\n" | 263 "<4>[ 6066.829029] [<79039d16>] ? run_timer_softirq+0x165/0x1e6\n" |
168 "<4>[ 6066.829029] [<790340af>] ignore_old_stack+0xa6/0x143\n" | 264 "<4>[ 6066.829029] [<790340af>] ignore_old_stack+0xa6/0x143\n" |
169 "<0>[ 6066.829029] EIP: [<b82d7c15>] ieee80211_stop_tx_ba_session+" | 265 "<0>[ 6066.829029] EIP: [<b82d7c15>] ieee80211_stop_tx_ba_session+" |
170 "0xa3/0xb5 [mac80211] SS:ESP 0068:7951febc\n" | 266 "0xa3/0xb5 [mac80211] SS:ESP 0068:7951febc\n" |
171 "<0>[ 6066.829029] CR2: 00000000323038a7\n" | 267 "<0>[ 6066.829029] CR2: 00000000323038a7\n" |
172 "<4>[ 6066.845422] ---[ end trace 12b058bb46c43500 ]---\n" | 268 "<4>[ 6066.845422] ---[ end trace 12b058bb46c43500 ]---\n" |
173 "<0>[ 6066.845747] Kernel panic - not syncing: Fatal exception " | 269 "<0>[ 6066.845747] Kernel panic - not syncing: Fatal exception " |
174 "in interrupt\n" | 270 "in interrupt\n" |
175 "<0>[ 6066.846902] Call Trace:\n" | 271 "<0>[ 6066.846902] Call Trace:\n" |
176 "<4>[ 6066.846902] [<7937a07b>] ? printk+0x14/0x19\n" | 272 "<4>[ 6066.846902] [<7937a07b>] ? printk+0x14/0x19\n" |
177 "<4>[ 6066.949779] [<79379fc1>] panic+0x3e/0xe4\n" | 273 "<4>[ 6066.949779] [<79379fc1>] panic+0x3e/0xe4\n" |
178 "<4>[ 6066.949971] [<7937c5c5>] oops_end+0x73/0x81\n" | 274 "<4>[ 6066.949971] [<7937c5c5>] oops_end+0x73/0x81\n" |
179 "<4>[ 6066.950208] [<7901b260>] no_context+0x10d/0x117\n"; | 275 "<4>[ 6066.950208] [<7901b260>] no_context+0x10d/0x117\n"; |
180 std::string signature; | 276 std::string signature; |
277 | |
278 collector_.SetArch(KernelCollector::archX86); | |
181 EXPECT_TRUE( | 279 EXPECT_TRUE( |
182 collector_.ComputeKernelStackSignature(kBugToPanic, &signature, false)); | 280 collector_.ComputeKernelStackSignature(kBugToPanic, &signature, false)); |
183 EXPECT_EQ("kernel-ieee80211_stop_tx_ba_session-DE253569", signature); | 281 EXPECT_EQ("kernel-ieee80211_stop_tx_ba_session-DE253569", signature); |
184 | 282 |
185 const char kPCButNoStack[] = | 283 const char kPCButNoStack[] = |
186 "<0>[ 6066.829029] EIP: [<b82d7c15>] ieee80211_stop_tx_ba_session+"; | 284 "<0>[ 6066.829029] EIP: [<b82d7c15>] ieee80211_stop_tx_ba_session+"; |
187 EXPECT_TRUE( | 285 EXPECT_TRUE( |
188 collector_.ComputeKernelStackSignature(kPCButNoStack, &signature, false)); | 286 collector_.ComputeKernelStackSignature(kPCButNoStack, &signature, false)); |
189 EXPECT_EQ("kernel-ieee80211_stop_tx_ba_session-00000000", signature); | 287 EXPECT_EQ("kernel-ieee80211_stop_tx_ba_session-00000000", signature); |
190 | 288 |
191 const char kStackButNoPC[] = | |
192 "<4>[ 6066.829029] [<790340af>] __do_softirq+0xa6/0x143\n"; | |
193 EXPECT_TRUE( | |
194 collector_.ComputeKernelStackSignature(kStackButNoPC, &signature, false)); | |
195 EXPECT_EQ("kernel--83615F0A", signature); | |
196 | |
197 const char kMissingEverything[] = | |
198 "<4>[ 6066.829029] [<790340af>] ? __do_softirq+0xa6/0x143\n"; | |
199 EXPECT_FALSE( | |
200 collector_.ComputeKernelStackSignature(kMissingEverything, | |
201 &signature, | |
202 false)); | |
203 | |
204 const char kBreakmeBug[] = | 289 const char kBreakmeBug[] = |
205 "<4>[ 180.492137] [<790970c6>] ? handle_mm_fault+0x67f/0x96d\n" | 290 "<4>[ 180.492137] [<790970c6>] ? handle_mm_fault+0x67f/0x96d\n" |
206 "<4>[ 180.492137] [<790dcdfe>] ? proc_reg_write+0x5f/0x73\n" | 291 "<4>[ 180.492137] [<790dcdfe>] ? proc_reg_write+0x5f/0x73\n" |
207 "<4>[ 180.492137] [<790e2224>] ? write_breakme+0x0/0x108\n" | 292 "<4>[ 180.492137] [<790e2224>] ? write_breakme+0x0/0x108\n" |
208 "<4>[ 180.492137] [<790dcd9f>] ? proc_reg_write+0x0/0x73\n" | 293 "<4>[ 180.492137] [<790dcd9f>] ? proc_reg_write+0x0/0x73\n" |
209 "<4>[ 180.492137] [<790ac0aa>] vfs_write+0x85/0xe4\n" | 294 "<4>[ 180.492137] [<790ac0aa>] vfs_write+0x85/0xe4\n" |
210 "<0>[ 180.492137] Code: c6 44 05 b2 00 89 d8 e8 0c ef 09 00 85 c0 75 " | 295 "<0>[ 180.492137] Code: c6 44 05 b2 00 89 d8 e8 0c ef 09 00 85 c0 75 " |
211 "0b c7 00 00 00 00 00 e9 8e 00 00 00 ba e6 75 4b 79 89 d8 e8 f1 ee 09 " | 296 "0b c7 00 00 00 00 00 e9 8e 00 00 00 ba e6 75 4b 79 89 d8 e8 f1 ee 09 " |
212 "00 85 c0 75 04 <0f> 0b eb fe ba 58 47 49 79 89 d8 e8 dd ee 09 00 85 " | 297 "00 85 c0 75 04 <0f> 0b eb fe ba 58 47 49 79 89 d8 e8 dd ee 09 00 85 " |
213 "c0 75 0a 68\n" | 298 "c0 75 0a 68\n" |
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248 "C 2.6.32.23+drm33.10 #1\n" | 333 "C 2.6.32.23+drm33.10 #1\n" |
249 "<4>[ 87.485639] Call Trace:\n" | 334 "<4>[ 87.485639] Call Trace:\n" |
250 "<4>[ 87.485660] [<8133f71d>] ? printk+0x14/0x17\n" | 335 "<4>[ 87.485660] [<8133f71d>] ? printk+0x14/0x17\n" |
251 "<4>[ 87.485674] [<8133f663>] panic+0x3e/0xe4\n" | 336 "<4>[ 87.485674] [<8133f663>] panic+0x3e/0xe4\n" |
252 "<4>[ 87.485689] [<810d062e>] write_breakme+0xaa/0x124\n"; | 337 "<4>[ 87.485689] [<810d062e>] write_breakme+0xaa/0x124\n"; |
253 EXPECT_TRUE( | 338 EXPECT_TRUE( |
254 collector_.ComputeKernelStackSignature(kExamplePanicOnly, | 339 collector_.ComputeKernelStackSignature(kExamplePanicOnly, |
255 &signature, | 340 &signature, |
256 false)); | 341 false)); |
257 EXPECT_EQ("kernel-Testing panic-E0FC3552", signature); | 342 EXPECT_EQ("kernel-Testing panic-E0FC3552", signature); |
343 DoCommonTests(); | |
344 } | |
345 | |
346 // Perform tests which are common across architectures | |
347 void KernelCollectorTest::DoCommonTests() { | |
kmixter1
2011/04/05 17:56:52
Could you add something with ComputeKernelStackSig
sjg
2011/04/05 18:25:54
OK I just renamed the function.
| |
348 std::string signature; | |
349 | |
350 const char kStackButNoPC[] = | |
351 "<4>[ 6066.829029] [<790340af>] __do_softirq+0xa6/0x143\n"; | |
352 EXPECT_TRUE( | |
353 collector_.ComputeKernelStackSignature(kStackButNoPC, &signature, false)); | |
354 EXPECT_EQ("kernel--83615F0A", signature); | |
355 | |
356 const char kMissingEverything[] = | |
357 "<4>[ 6066.829029] [<790340af>] ? __do_softirq+0xa6/0x143\n"; | |
358 EXPECT_FALSE( | |
359 collector_.ComputeKernelStackSignature(kMissingEverything, | |
360 &signature, | |
361 false)); | |
258 | 362 |
259 // Long message. | 363 // Long message. |
260 const char kTruncatedMessage[] = | 364 const char kTruncatedMessage[] = |
261 "<0>[ 87.485611] Kernel panic - not syncing: 01234567890123456789" | 365 "<0>[ 87.485611] Kernel panic - not syncing: 01234567890123456789" |
262 "01234567890123456789X\n"; | 366 "01234567890123456789X\n"; |
263 EXPECT_TRUE( | 367 EXPECT_TRUE( |
264 collector_.ComputeKernelStackSignature(kTruncatedMessage, | 368 collector_.ComputeKernelStackSignature(kTruncatedMessage, |
265 &signature, | 369 &signature, |
266 false)); | 370 false)); |
267 EXPECT_EQ("kernel-0123456789012345678901234567890123456789-00000000", | 371 EXPECT_EQ("kernel-0123456789012345678901234567890123456789-00000000", |
268 signature); | 372 signature); |
269 | |
270 } | 373 } |
271 | 374 |
272 int main(int argc, char **argv) { | 375 int main(int argc, char **argv) { |
273 SetUpTests(&argc, argv, false); | 376 SetUpTests(&argc, argv, false); |
274 return RUN_ALL_TESTS(); | 377 return RUN_ALL_TESTS(); |
275 } | 378 } |
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