[Webkit-unassigned] [Bug 220108] New: Simulated Python crash during test runs
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Tue Dec 22 16:08:39 PST 2020
https://bugs.webkit.org/show_bug.cgi?id=220108
Bug ID: 220108
Summary: Simulated Python crash during test runs
Product: WebKit
Version: WebKit Nightly Build
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: Tools / Tests
Assignee: webkit-unassigned at lists.webkit.org
Reporter: dino at apple.com
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.
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