220108 2020-12-22 16:08:39 -0800 Simulated Python crash during test runs 2020-12-23 10:51:33 -0800 1 1 1 Unclassified WebKit Tools / Tests WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=187270 InRadar P2 Normal --- 1 dino dino ap cdumez ews-watchlist ggaren glenn jbedard katherine_cheney ryanhaddad simon.fraser webkit-bug-importer oldest_to_newest 1716401 0 dino 2020-12-22 16:08:39 -0800 Seems to be related to https://bugs.webkit.org/show_bug.cgi?id=187270 When I run-webkit-tests long enough, I get a lot of Python (simulated) crashes. Python[58104]: unlink: 'observations.db-wal' guarded by com.apple.WebKit[58126] (0x8fd4dbfade2dead) Process: Python [58124] Path: /System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python Identifier: Python Version: 2.7.16 (2.7.16) Build Info: python-136060002000001~1 Code Type: X86-64 (Native) Parent Process: Python [57992] Responsible: Terminal [13029] User ID: 501 Date/Time: 2020-12-23 11:06:58.300 +1100 OS Version: macOS 11.3 (20E147) Report Version: 12 Bridge OS Version: 5.0 (18P4149) Anonymous UUID: C729D507-17A9-EEE1-9174-B0F1EEC1411A Time Awake Since Boot: 1200000 seconds System Integrity Protection: disabled Crashed Thread: 0 Exception Type: EXC_GUARD Exception Codes: 0x800000040000e322, 0x08fd4dbfade2dead Exception Subtype: GUARD_TYPE_VN, id=0x08fd4dbfade2dead, pid=58146, flavor=0x00000004 (VNG_UNLINK) Exception Note: SIMULATED (this is NOT a crash) Termination Reason: Namespace <0x17>, Code 0x1 Termination Details: <0x17>, /private/var/folders/6f/chyryk8d7cjdt4pln4rqyv780000gn/T/WebKitTestRunners-4B4P3U/ResourceLoadStatistics/735734988/observations.db-wal Application Specific Information: crashed on child side of fork pre-exec Thread 0 Crashed: 0 libsystem_kernel.dylib 0x00007fff2045cace __unlink + 10 1 libsystem_kernel.dylib 0x00007fff2045cab0 unlink + 11 2 org.python.python 0x000000010d7dc3d0 0x10d71f000 + 775120 3 org.python.python 0x000000010d7a877c PyEval_EvalFrameEx + 20840 4 org.python.python 0x000000010d7a3009 PyEval_EvalCodeEx + 533 5 org.python.python 0x000000010d7ada51 0x10d71f000 + 584273 6 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 7 org.python.python 0x000000010d7a3009 PyEval_EvalCodeEx + 533 8 org.python.python 0x000000010d7ada51 0x10d71f000 + 584273 9 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 10 org.python.python 0x000000010d7a3009 PyEval_EvalCodeEx + 533 11 org.python.python 0x000000010d7ada51 0x10d71f000 + 584273 12 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 13 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 14 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 15 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 16 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 17 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 18 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 19 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 20 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 21 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 22 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 23 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 24 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 25 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 26 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 27 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 28 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 29 org.python.python 0x000000010d7a3009 PyEval_EvalCodeEx + 533 30 org.python.python 0x000000010d749f8e 0x10d71f000 + 176014 31 org.python.python 0x000000010d72c55e PyObject_Call + 97 32 org.python.python 0x000000010d736e3c 0x10d71f000 + 97852 33 org.python.python 0x000000010d72c55e PyObject_Call + 97 34 org.python.python 0x000000010d77283f 0x10d71f000 + 342079 35 org.python.python 0x000000010d76fa52 0x10d71f000 + 330322 36 org.python.python 0x000000010d72c55e PyObject_Call + 97 37 org.python.python 0x000000010d7a876a PyEval_EvalFrameEx + 20822 38 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 39 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 40 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 41 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 42 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 43 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 44 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 45 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 46 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 47 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 48 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 49 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 50 org.python.python 0x000000010d7a3009 PyEval_EvalCodeEx + 533 51 org.python.python 0x000000010d7ada51 0x10d71f000 + 584273 52 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 53 org.python.python 0x000000010d7a3009 PyEval_EvalCodeEx + 533 54 org.python.python 0x000000010d7ada51 0x10d71f000 + 584273 55 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 56 org.python.python 0x000000010d7a3009 PyEval_EvalCodeEx + 533 57 org.python.python 0x000000010d7ada51 0x10d71f000 + 584273 58 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 59 org.python.python 0x000000010d7a3009 PyEval_EvalCodeEx + 533 60 org.python.python 0x000000010d7ada51 0x10d71f000 + 584273 61 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 62 org.python.python 0x000000010d7a3009 PyEval_EvalCodeEx + 533 63 org.python.python 0x000000010d7ada51 0x10d71f000 + 584273 64 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 65 org.python.python 0x000000010d7a3009 PyEval_EvalCodeEx + 533 66 org.python.python 0x000000010d7a2dee PyEval_EvalCode + 32 67 org.python.python 0x000000010d7c5e6c 0x10d71f000 + 683628 68 org.python.python 0x000000010d7c5f13 PyRun_FileExFlags + 130 69 org.python.python 0x000000010d7c5a99 PyRun_SimpleFileExFlags + 690 70 org.python.python 0x000000010d7d73dc Py_Main + 3208 71 libdyld.dylib 0x00007fff204aa539 start + 1 Thread 1: 0 libsystem_kernel.dylib 0x00007fff2045c472 __psynch_cvwait + 10 1 libsystem_pthread.dylib 0x00007fff2048eea1 _pthread_cond_wait + 1298 2 org.python.python 0x000000010d7d5400 PyThread_acquire_lock + 72 3 org.python.python 0x000000010d7d9675 0x10d71f000 + 763509 4 org.python.python 0x000000010d7a877c PyEval_EvalFrameEx + 20840 5 org.python.python 0x000000010d7a3009 PyEval_EvalCodeEx + 533 6 org.python.python 0x000000010d7ada51 0x10d71f000 + 584273 7 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 8 org.python.python 0x000000010d7a3009 PyEval_EvalCodeEx + 533 9 org.python.python 0x000000010d749f8e 0x10d71f000 + 176014 10 org.python.python 0x000000010d72c55e PyObject_Call + 97 11 org.python.python 0x000000010d7a8ead PyEval_EvalFrameEx + 22681 12 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 13 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 14 org.python.python 0x000000010d7ad9f7 0x10d71f000 + 584183 15 org.python.python 0x000000010d7a868d PyEval_EvalFrameEx + 20601 16 org.python.python 0x000000010d7a3009 PyEval_EvalCodeEx + 533 17 org.python.python 0x000000010d749f8e 0x10d71f000 + 176014 18 org.python.python 0x000000010d72c55e PyObject_Call + 97 19 org.python.python 0x000000010d736e3c 0x10d71f000 + 97852 20 org.python.python 0x000000010d72c55e PyObject_Call + 97 21 org.python.python 0x000000010d7ad392 PyEval_CallObjectWithKeywords + 159 22 org.python.python 0x000000010d7d94ce 0x10d71f000 + 763086 23 org.python.python 0x000000010d7d526e 0x10d71f000 + 746094 24 libsystem_pthread.dylib 0x00007fff2048e954 _pthread_start + 224 25 libsystem_pthread.dylib 0x00007fff2048a4a7 thread_start + 15 Thread 0 crashed with X86 Thread State (64-bit): rax: 0x000000000200000a rbx: 0x0000000000000000 rcx: 0x00007ffee24ef0d8 rdx: 0x00001e0000001e00 rdi: 0x00007fb1ce504110 rsi: 0x000000000007be00 rbp: 0x00007ffee24ef0f0 rsp: 0x00007ffee24ef0d8 r8: 0x000000000007be00 r9: 0x0007be010007be00 r10: 0x0000000000000000 r11: 0x0000000000000206 r12: 0x00007fb1ce604400 r13: 0x00007fb1ce604408 r14: 0x00007fb21c406ef0 r15: 0x000000010fed6d50 rip: 0x00007fff2045cace rfl: 0x0000000000000206 cr2: 0x00007fb1d980d7fc Logical CPU: 0 Error Code: 0x0200000a Trap Number: 133 Thread 0 instruction stream not available. Thread 0 last branch register state not available. 1716402 1 dino 2020-12-22 16:34:59 -0800 Looks like Tools/Scripts/webkitpy/port/driver.py should add ~/Library/WebKit to its SQLITE_EXEMPT_PATH_FROM_VNODE_GUARDS But I'm not sure if that variable can take multiple paths. 1716404 2 dino 2020-12-22 16:39:17 -0800 Seems not: > Processes can now set SQLITE_EXEMPT_PATH_FROM_VNODE_GUARDS in their environment to have that path exempted from vnode guards. > Note that (for now, at least) the path is matched exactly; SQLite does not attempt to resolve symbolic links or '..' 1716407 3 webkit-bug-importer 2020-12-22 16:43:55 -0800 <rdar://problem/72605338> 1716409 4 416697 dino 2020-12-22 16:46:41 -0800 Created attachment 416697 Patch 1716418 5 416700 dino 2020-12-22 17:56:18 -0800 Created attachment 416700 Patch 1716426 6 416700 ggaren 2020-12-22 19:49:53 -0800 Comment on attachment 416700 Patch r=me 1716475 7 ews-feeder 2020-12-23 10:51:32 -0800 Committed r271071: <https://trac.webkit.org/changeset/271071> All reviewed patches have been landed. Closing bug and clearing flags on attachment 416700. 416697 2020-12-22 16:46:41 -0800 2020-12-22 17:56:14 -0800 Patch bug-220108-20201223114639.patch text/plain 1985 dino U3VidmVyc2lvbiBSZXZpc2lvbjogMjcxMDY1CmRpZmYgLS1naXQgYS9Ub29scy9DaGFuZ2VMb2cg Yi9Ub29scy9DaGFuZ2VMb2cKaW5kZXggNTExYWUzYjMxZjQ4YTA4NWFjOTI3MzkwNWZiNDAzZDE3 YjI4MzY1MS4uYWVjNmU2OGMzYzY5ZjUxODU4MjFhZGYwNWE4YjA0NWRmYTJiZTc1OCAxMDA2NDQK LS0tIGEvVG9vbHMvQ2hhbmdlTG9nCisrKyBiL1Rvb2xzL0NoYW5nZUxvZwpAQCAtMSwzICsxLDIx IEBACisyMDIwLTEyLTIyICBEZWFuIEphY2tzb24gIDxkaW5vQGFwcGxlLmNvbT4KKworICAgICAg ICBTaW11bGF0ZWQgUHl0aG9uIGNyYXNoIGR1cmluZyB0ZXN0IHJ1bnMKKyAgICAgICAgaHR0cHM6 Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTIyMDEwOAorICAgICAgICA8cmRhcjov L3Byb2JsZW0vNzI2MDUzMzg+CisKKyAgICAgICAgUmV2aWV3ZWQgYnkgTk9CT0RZIChPT1BTISku CisKKyAgICAgICAgVGhlIFJlc291cmNlTG9hZFN0YXRpc3RpY3MgY29kZSBjYW4gdW5saW5rIGEg ZGF0YWJhc2UgZHVyaW5nIHRoZSB0ZXN0CisgICAgICAgIHJ1biwgd2hpY2ggY2F1c2VzIGEgc2lt 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