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add_trace_back doesn't work correctly on 32-bit systems #47

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QuLogic opened this issue Jan 2, 2021 · 6 comments
Open

add_trace_back doesn't work correctly on 32-bit systems #47

QuLogic opened this issue Jan 2, 2021 · 6 comments

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@QuLogic
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QuLogic commented Jan 2, 2021

On i686 and armv7hl, the tests in test-add_trace_back.R fail and seem to be missing some bits of the traceback. winch also outputs a warning of libR not found in backtrace, can't merge.
@krlmlr
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krlmlr commented Jan 2, 2021

Thanks. I have never tested on these platforms, I'd appreciate further insights.

Does libbacktrace work there (it comes with its own test suite)? Same question for libunwind? Does the dependent procmaps R package pass the tests?

@QuLogic
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QuLogic commented Jan 2, 2021

I'm not sure about libbacktrace as it isn't packaged and I'm just using the bundled version from winch.

I just noticed that I didn't have libunwind installed, but installing it did not fix the bug. Alas, its test suite does not even pass on x86_64, so I'm not sure if that says much about i686.

The procmaps R package does pass its tests.

@QuLogic
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QuLogic commented Jan 2, 2021 •
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I debugged this a little by printing out stuff in add_trace_back, and native_trace contains a pathname entry on the first line only; everything else is <NA>. Something that seems a bit suspicious is the ip entry; the last 8 characters are some random address, but the first 8 characters are just a running count of the frame number. With #48, the pathname entries are fixed, but the error changes to: Error: attempt to select less than one index in integerOneIndex, but this time on the 'if no native code' test instead of 'if native code'.

  ── Error (test-add_trace_back.R:5:3): traceback unchanged if no native code ────
  Error: attempt to select less than one element in integerOneIndex
  Backtrace:
      █
   1. ├─testthat::expect_identical(...) test-add_trace_back.R:5:2
   2. │ └─testthat::quasi_label(enquo(object), label, arg = "object")
   3. │   └─rlang::eval_bare(expr, quo_get_env(quo))
   4. └─winch::winch_add_trace_back(trace)
   5.   └─winch:::insert_native_chunk(...)

@krlmlr
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krlmlr commented Jan 2, 2021

libbacktrace is pretty much self-contained at https://github.com/ianlancetaylor/libbacktrace. I think winch has an exact copy of an earlier state.

AFAIR, to use libunwind you'd need to change the code so that winch:::default_method evaluates to 1.

What does procmaps::procmaps_get() show on your system?

@QuLogic
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QuLogic commented Jan 2, 2021

Ah, I did not realize that the vendored copy of libbacktrace is complete; I ran ./configure; make check and all its tests passed.

Output from `Rscript -e 'procmaps::procmap_get(as_tibble=FALSE)'` 
                from               to perms   offset   inode
1   00000000565f4000 00000000565f5000  r--p 00000000 5450877
2   00000000565f5000 00000000565f6000  r-xp 00001000 5450877
3   00000000565f6000 00000000565f7000  r--p 00002000 5450877
4   00000000565f7000 00000000565f8000  r--p 00002000 5450877
5   00000000565f8000 00000000565f9000  rw-p 00003000 5450877
6   0000000057de3000 0000000059055000  rw-p 00000000       0
7   00000000ed8a9000 00000000ed8ab000  r--p 00000000 5454862
8   00000000ed8ab000 00000000ed8b3000  r-xp 00002000 5454862
9   00000000ed8b3000 00000000ed8b6000  r--p 0000a000 5454862
10  00000000ed8b6000 00000000ed8b7000  ---p 0000d000 5454862
11  00000000ed8b7000 00000000ed8b8000  r--p 0000d000 5454862
12  00000000ed8b8000 00000000ed8ba000  rw-p 00000000       0
13  00000000eda53000 00000000eda59000  r--p 00000000 5454041
14  00000000eda59000 00000000edadd000  r-xp 00006000 5454041
15  00000000edadd000 00000000edafc000  r--p 0008a000 5454041
16  00000000edafc000 00000000edafd000  ---p 000a9000 5454041
17  00000000edafd000 00000000edaff000  r--p 000a9000 5454041
18  00000000edaff000 00000000edb00000  rw-p 000ab000 5454041
19  00000000edb00000 00000000edd75000  rw-p 00000000       0
20  00000000eddf3000 00000000eddf5000  r--p 00000000 5452573
21  00000000eddf5000 00000000ede33000  r-xp 00002000 5452573
22  00000000ede33000 00000000ede3f000  r--p 00040000 5452573
23  00000000ede3f000 00000000ede40000  r--p 0004b000 5452573
24  00000000ede40000 00000000edf82000  rw-p 00000000       0
25  00000000edf82000 00000000edf84000  r--p 00000000 5452934
26  00000000edf84000 00000000edf89000  r-xp 00002000 5452934
27  00000000edf89000 00000000edf8c000  r--p 00007000 5452934
28  00000000edf8c000 00000000edf8d000  ---p 0000a000 5452934
29  00000000edf8d000 00000000edf8e000  r--p 0000a000 5452934
30  00000000edf8e000 00000000edf8f000  rw-p 0000b000 5452934
31  00000000edfa0000 00000000edfa1000  r--p 00000000 5546240
32  00000000edfa1000 00000000edfa3000  r-xp 00001000 5546240
33  00000000edfa3000 00000000edfa4000  r--p 00003000 5546240
34  00000000edfa4000 00000000edfa5000  r--p 00003000 5546240
35  00000000edfa5000 00000000edfa6000  rw-p 00004000 5546240
36  00000000edfa6000 00000000edff6000  rw-p 00000000       0
37  00000000edff6000 00000000edffc000  r--p 00000000 5452468
38  00000000edffc000 00000000ee01d000  r-xp 00006000 5452468
39  00000000ee01d000 00000000ee02f000  r--p 00027000 5452468
40  00000000ee02f000 00000000ee032000  r--p 00038000 5452468
41  00000000ee032000 00000000ee034000  rw-p 0003b000 5452468
42  00000000ee034000 00000000ee4e6000  rw-p 00000000       0
43  00000000ee4e6000 00000000ee4e7000  r--p 00000000 5354791
44  00000000ee4e7000 00000000ee4e8000  r--p 00000000 5354796
45  00000000ee4e8000 00000000ee4e9000  r--p 00000000 5354793
46  00000000ee4e9000 00000000ee4ea000  r--p 00000000 5354798
47  00000000ee4ea000 00000000eeb95000  r--p 00000000 5354788
48  00000000eeb95000 00000000eebea000  r--p 00000000 5354789
49  00000000eebea000 00000000eebf1000  r--- 00000000 5355384
50  00000000eebf1000 00000000ef002000  rw-p 00000000       0
51  00000000ef002000 00000000f3002000  rw-p 00000000       0
52  00000000f3002000 00000000f30b3000  r--p 00000000 5372526
53  00000000f30b3000 00000000f43a3000  r-xp 000b1000 5372526
54  00000000f43a3000 00000000f4628000  r--p 013a1000 5372526
55  00000000f4628000 00000000f462f000  r--p 01625000 5372526
56  00000000f462f000 00000000f4639000  rw-p 0162c000 5372526
57  00000000f4639000 00000000f463e000  rw-p 00000000       0
58  00000000f463e000 00000000f4641000  r--p 00000000 5397860
59  00000000f4641000 00000000f4644000  r-xp 00003000 5397860
60  00000000f4644000 00000000f4645000  r--p 00006000 5397860
61  00000000f4645000 00000000f4646000  r--p 00006000 5397860
62  00000000f4646000 00000000f4647000  rw-p 00007000 5397860
63  00000000f4647000 00000000f465b000  r--p 00000000 5397862
64  00000000f465b000 00000000f4c01000  r-xp 00014000 5397862
65  00000000f4c01000 00000000f4ccf000  r--p 005ba000 5397862
66  00000000f4ccf000 00000000f4cd0000  r--p 00687000 5397862
67  00000000f4cd0000 00000000f4cd2000  rw-p 00688000 5397862
68  00000000f4cd2000 00000000f4cd4000  r--p 00000000 5397863
69  00000000f4cd4000 00000000f4d2a000  r-xp 00002000 5397863
70  00000000f4d2a000 00000000f4d30000  r--p 00058000 5397863
71  00000000f4d30000 00000000f4d31000  r--p 0005d000 5397863
72  00000000f4d31000 00000000f4d32000  rw-p 0005e000 5397863
73  00000000f4d32000 00000000f4d36000  rw-p 00000000       0
74  00000000f4d36000 00000000f4dae000  r--p 00000000 5355571
75  00000000f4dae000 00000000f4ec0000  r-xp 00078000 5355571
76  00000000f4ec0000 00000000f4f47000  r--p 0018a000 5355571
77  00000000f4f47000 00000000f4f4d000  r--p 00210000 5355571
78  00000000f4f4d000 00000000f4f4f000  rw-p 00216000 5355571
79  00000000f4f4f000 00000000f4f53000  rw-p 00000000       0
80  00000000f4f53000 00000000f4f54000  r--p 00000000 5369556
81  00000000f4f54000 00000000f4f55000  r-xp 00001000 5369556
82  00000000f4f55000 00000000f6a6a000  r--p 00002000 5369556
83  00000000f6a6a000 00000000f6a6b000  r--p 01b16000 5369556
84  00000000f6a6b000 00000000f6a6c000  rw-p 00000000       0
85  00000000f6a6c000 00000000f6a73000  r--p 00000000 5355415
86  00000000f6a73000 00000000f6a82000  r-xp 00007000 5355415
87  00000000f6a82000 00000000f6a92000  r--p 00016000 5355415
88  00000000f6a92000 00000000f6a94000  r--p 00025000 5355415
89  00000000f6a94000 00000000f6a95000  rw-p 00027000 5355415
90  00000000f6a95000 00000000f6a97000  r--p 00000000 5369544
91  00000000f6a97000 00000000f6ae4000  r-xp 00002000 5369544
92  00000000f6ae4000 00000000f6b09000  r--p 0004f000 5369544
93  00000000f6b09000 00000000f6b0a000  r--p 00073000 5369544
94  00000000f6b0a000 00000000f6b0b000  rw-p 00074000 5369544
95  00000000f6b0b000 00000000f6b1e000  r--p 00000000 5369704
96  00000000f6b1e000 00000000f6d5a000  r-xp 00013000 5369704
97  00000000f6d5a000 00000000f6da4000  r--p 0024f000 5369704
98  00000000f6da4000 00000000f6da5000  r--p 00298000 5369704
99  00000000f6da5000 00000000f6da6000  rw-p 00299000 5369704
100 00000000f6da6000 00000000f6dac000  r--p 00000000 5354825
101 00000000f6dac000 00000000f6dbd000  r-xp 00006000 5354825
102 00000000f6dbd000 00000000f6dc4000  r--p 00017000 5354825
103 00000000f6dc4000 00000000f6dc5000  r--p 0001d000 5354825
104 00000000f6dc5000 00000000f6dc6000  rw-p 0001e000 5354825
105 00000000f6dc6000 00000000f6dc8000  rw-p 00000000       0
106 00000000f6dc8000 00000000f6dca000  r--p 00000000 5354754
107 00000000f6dca000 00000000f6de0000  r-xp 00002000 5354754
108 00000000f6de0000 00000000f6de4000  r--p 00018000 5354754
109 00000000f6de4000 00000000f6de5000  r--p 0001b000 5354754
110 00000000f6de5000 00000000f6de6000  rw-p 0001c000 5354754
111 00000000f6de6000 00000000f6dee000  r--p 00000000 5356722
112 00000000f6dee000 00000000f6e1a000  r-xp 00008000 5356722
113 00000000f6e1a000 00000000f6e2c000  r--p 00034000 5356722
114 00000000f6e2c000 00000000f6e2d000  r--p 00045000 5356722
115 00000000f6e2d000 00000000f6e2e000  rw-p 00046000 5356722
116 00000000f6e2e000 00000000f6ee0000  r--p 00000000 5369558
117 00000000f6ee0000 00000000f70aa000  r-xp 000b2000 5369558
118 00000000f70aa000 00000000f7154000  r--p 0027c000 5369558
119 00000000f7154000 00000000f7155000  ---p 00326000 5369558
120 00000000f7155000 00000000f715e000  r--p 00326000 5369558
121 00000000f715e000 00000000f715f000  rw-p 0032f000 5369558
122 00000000f715f000 00000000f71a4000  r--p 00000000 5369566
123 00000000f71a4000 00000000f72a5000  r-xp 00045000 5369566
124 00000000f72a5000 00000000f7343000  r--p 00146000 5369566
125 00000000f7343000 00000000f734e000  r--p 001e3000 5369566
126 00000000f734e000 00000000f734f000  rw-p 001ee000 5369566
127 00000000f734f000 00000000f7350000  rw-p 00000000       0
128 00000000f7350000 00000000f7351000  r--p 00000000 5354815
129 00000000f7351000 00000000f7353000  r-xp 00001000 5354815
130 00000000f7353000 00000000f7354000  r--p 00003000 5354815
131 00000000f7354000 00000000f7355000  r--p 00003000 5354815
132 00000000f7355000 00000000f7358000  rw-p 00000000       0
133 00000000f7358000 00000000f735a000  r--p 00000000 5355545
134 00000000f735a000 00000000f7368000  r-xp 00002000 5355545
135 00000000f7368000 00000000f7370000  r--p 00010000 5355545
136 00000000f7370000 00000000f7371000  r--p 00017000 5355545
137 00000000f7371000 00000000f7372000  rw-p 00000000       0
138 00000000f7372000 00000000f7373000  r--p 00000000 5355551
139 00000000f7373000 00000000f7380000  r-xp 00001000 5355551
140 00000000f7380000 00000000f7382000  r--p 0000e000 5355551
141 00000000f7382000 00000000f7383000  ---p 00010000 5355551
142 00000000f7383000 00000000f7384000  r--p 00010000 5355551
143 00000000f7384000 00000000f7385000  rw-p 00011000 5355551
144 00000000f7385000 00000000f7387000  r--p 00000000 5355555
145 00000000f7387000 00000000f73a4000  r-xp 00002000 5355555
146 00000000f73a4000 00000000f73b2000  r--p 0001f000 5355555
147 00000000f73b2000 00000000f73b3000  r--p 0002c000 5355555
148 00000000f73b3000 00000000f73b4000  rw-p 00000000       0
149 00000000f73b4000 00000000f73b6000  r--p 00000000 5355917
150 00000000f73b6000 00000000f741a000  r-xp 00002000 5355917
151 00000000f741a000 00000000f744c000  r--p 00066000 5355917
152 00000000f744c000 00000000f744d000  r--p 00097000 5355917
153 00000000f744d000 00000000f744e000  rw-p 00098000 5355917
154 00000000f744e000 00000000f7450000  r--p 00000000 5369731
155 00000000f7450000 00000000f745d000  r-xp 00002000 5369731
156 00000000f745d000 00000000f7460000  r--p 0000f000 5369731
157 00000000f7460000 00000000f7461000  r--p 00011000 5369731
158 00000000f7461000 00000000f7462000  rw-p 00000000       0
159 00000000f7462000 00000000f746f000  r--p 00000000 5355605
160 00000000f746f000 00000000f749d000  r-xp 0000d000 5355605
161 00000000f749d000 00000000f74ae000  r--p 0003b000 5355605
162 00000000f74ae000 00000000f74b0000  r--p 0004b000 5355605
163 00000000f74b0000 00000000f74b3000  rw-p 0004d000 5355605
164 00000000f74b3000 00000000f74b4000  rw-p 00000000       0
165 00000000f74b4000 00000000f74c0000  r--p 00000000 5354817
166 00000000f74c0000 00000000f754d000  r-xp 0000c000 5354817
167 00000000f754d000 00000000f7583000  r--p 00099000 5354817
168 00000000f7583000 00000000f7584000  r--p 000ce000 5354817
169 00000000f7584000 00000000f7585000  rw-p 000cf000 5354817
170 00000000f7585000 00000000f760f000  r--p 00000000 5372538
171 00000000f760f000 00000000f7853000  r-xp 0008a000 5372538
172 00000000f7853000 00000000f791e000  r--p 002ce000 5372538
173 00000000f791e000 00000000f7923000  r--p 00398000 5372538
174 00000000f7923000 00000000f7924000  rw-p 0039d000 5372538
175 00000000f7924000 00000000f792c000  rw-p 00000000       0
176 00000000f792c000 00000000f7949000  r--p 00000000 5354813
177 00000000f7949000 00000000f7a78000  r-xp 0001d000 5354813
178 00000000f7a78000 00000000f7ae1000  r--p 0014c000 5354813
179 00000000f7ae1000 00000000f7ae3000  r--p 001b4000 5354813
180 00000000f7ae3000 00000000f7ae5000  rw-p 001b6000 5354813
181 00000000f7ae5000 00000000f7aec000  rw-p 00000000       0
182 00000000f7aec000 00000000f7b19000  r--p 00000000 5450890
183 00000000f7b19000 00000000f7d3f000  r-xp 0002d000 5450890
184 00000000f7d3f000 00000000f7e27000  r--p 00253000 5450890
185 00000000f7e27000 00000000f7e39000  r--p 0033a000 5450890
186 00000000f7e39000 00000000f7e44000  rw-p 0034c000 5450890
187 00000000f7e44000 00000000f7f93000  rw-p 00000000       0
188 00000000f7f93000 00000000f7f97000  r--p 00000000       0
189 00000000f7f97000 00000000f7f99000  r-xp 00000000       0
190 00000000f7f99000 00000000f7f9a000  r--p 00000000 5354806
191 00000000f7f9a000 00000000f7fba000  r-xp 00001000 5354806
192 00000000f7fba000 00000000f7fc6000  r--p 00021000 5354806
193 00000000f7fc6000 00000000f7fc7000  r--p 00000000 5354792
194 00000000f7fc7000 00000000f7fc8000  r--p 0002d000 5354806
195 00000000f7fc8000 00000000f7fc9000  rw-p 0002e000 5354806
196 00000000ffe05000 00000000ffe6a000  rw-p 00000000       0
                                              pathname
1                                /usr/lib/R/bin/exec/R
2                                /usr/lib/R/bin/exec/R
3                                /usr/lib/R/bin/exec/R
4                                /usr/lib/R/bin/exec/R
5                                /usr/lib/R/bin/exec/R
6                                               [heap]
7               /usr/lib/R/library/utils/libs/utils.so
8               /usr/lib/R/library/utils/libs/utils.so
9               /usr/lib/R/library/utils/libs/utils.so
10              /usr/lib/R/library/utils/libs/utils.so
11              /usr/lib/R/library/utils/libs/utils.so
12                                                    
13              /usr/lib/R/library/stats/libs/stats.so
14              /usr/lib/R/library/stats/libs/stats.so
15              /usr/lib/R/library/stats/libs/stats.so
16              /usr/lib/R/library/stats/libs/stats.so
17              /usr/lib/R/library/stats/libs/stats.so
18              /usr/lib/R/library/stats/libs/stats.so
19                                                    
20        /usr/lib/R/library/graphics/libs/graphics.so
21        /usr/lib/R/library/graphics/libs/graphics.so
22        /usr/lib/R/library/graphics/libs/graphics.so
23        /usr/lib/R/library/graphics/libs/graphics.so
24                                                    
25          /usr/lib/R/library/methods/libs/methods.so
26          /usr/lib/R/library/methods/libs/methods.so
27          /usr/lib/R/library/methods/libs/methods.so
28          /usr/lib/R/library/methods/libs/methods.so
29          /usr/lib/R/library/methods/libs/methods.so
30          /usr/lib/R/library/methods/libs/methods.so
31        /usr/lib/R/library/procmaps/libs/procmaps.so
32        /usr/lib/R/library/procmaps/libs/procmaps.so
33        /usr/lib/R/library/procmaps/libs/procmaps.so
34        /usr/lib/R/library/procmaps/libs/procmaps.so
35        /usr/lib/R/library/procmaps/libs/procmaps.so
36                                                    
37      /usr/lib/R/library/grDevices/libs/grDevices.so
38      /usr/lib/R/library/grDevices/libs/grDevices.so
39      /usr/lib/R/library/grDevices/libs/grDevices.so
40      /usr/lib/R/library/grDevices/libs/grDevices.so
41      /usr/lib/R/library/grDevices/libs/grDevices.so
42                                                    
43               /usr/lib/locale/C.utf8/LC_MEASUREMENT
44                     /usr/lib/locale/C.utf8/LC_PAPER
45                  /usr/lib/locale/C.utf8/LC_MONETARY
46                      /usr/lib/locale/C.utf8/LC_TIME
47                   /usr/lib/locale/C.utf8/LC_COLLATE
48                     /usr/lib/locale/C.utf8/LC_CTYPE
49                  /usr/lib/gconv/gconv-modules.cache
50                                                    
51                                                    
52                    /usr/lib/libopenblaso-r0.3.12.so
53                    /usr/lib/libopenblaso-r0.3.12.so
54                    /usr/lib/libopenblaso-r0.3.12.so
55                    /usr/lib/libopenblaso-r0.3.12.so
56                    /usr/lib/libopenblaso-r0.3.12.so
57                                                    
58  /usr/lib/flexiblas/libflexiblas_openblas-openmp.so
59  /usr/lib/flexiblas/libflexiblas_openblas-openmp.so
60  /usr/lib/flexiblas/libflexiblas_openblas-openmp.so
61  /usr/lib/flexiblas/libflexiblas_openblas-openmp.so
62  /usr/lib/flexiblas/libflexiblas_openblas-openmp.so
63  /usr/lib/flexiblas/libflexiblas_fallback_lapack.so
64  /usr/lib/flexiblas/libflexiblas_fallback_lapack.so
65  /usr/lib/flexiblas/libflexiblas_fallback_lapack.so
66  /usr/lib/flexiblas/libflexiblas_fallback_lapack.so
67  /usr/lib/flexiblas/libflexiblas_fallback_lapack.so
68           /usr/lib/flexiblas/libflexiblas_netlib.so
69           /usr/lib/flexiblas/libflexiblas_netlib.so
70           /usr/lib/flexiblas/libflexiblas_netlib.so
71           /usr/lib/flexiblas/libflexiblas_netlib.so
72           /usr/lib/flexiblas/libflexiblas_netlib.so
73                                                    
74                        /usr/lib/libstdc++.so.6.0.29
75                        /usr/lib/libstdc++.so.6.0.29
76                        /usr/lib/libstdc++.so.6.0.29
77                        /usr/lib/libstdc++.so.6.0.29
78                        /usr/lib/libstdc++.so.6.0.29
79                                                    
80                         /usr/lib/libicudata.so.67.1
81                         /usr/lib/libicudata.so.67.1
82                         /usr/lib/libicudata.so.67.1
83                         /usr/lib/libicudata.so.67.1
84                                                    
85                            /usr/lib/libtinfo.so.6.2
86                            /usr/lib/libtinfo.so.6.2
87                            /usr/lib/libtinfo.so.6.2
88                            /usr/lib/libtinfo.so.6.2
89                            /usr/lib/libtinfo.so.6.2
90                       /usr/lib/libquadmath.so.0.0.0
91                       /usr/lib/libquadmath.so.0.0.0
92                       /usr/lib/libquadmath.so.0.0.0
93                       /usr/lib/libquadmath.so.0.0.0
94                       /usr/lib/libquadmath.so.0.0.0
95                       /usr/lib/libgfortran.so.5.0.0
96                       /usr/lib/libgfortran.so.5.0.0
97                       /usr/lib/libgfortran.so.5.0.0
98                       /usr/lib/libgfortran.so.5.0.0
99                       /usr/lib/libgfortran.so.5.0.0
100                   /usr/lib/libpthread-2.32.9000.so
101                   /usr/lib/libpthread-2.32.9000.so
102                   /usr/lib/libpthread-2.32.9000.so
103                   /usr/lib/libpthread-2.32.9000.so
104                   /usr/lib/libpthread-2.32.9000.so
105                                                   
106                 /usr/lib/libgcc_s-11-20201223.so.1
107                 /usr/lib/libgcc_s-11-20201223.so.1
108                 /usr/lib/libgcc_s-11-20201223.so.1
109                 /usr/lib/libgcc_s-11-20201223.so.1
110                 /usr/lib/libgcc_s-11-20201223.so.1
111                          /usr/lib/libgomp.so.1.0.0
112                          /usr/lib/libgomp.so.1.0.0
113                          /usr/lib/libgomp.so.1.0.0
114                          /usr/lib/libgomp.so.1.0.0
115                          /usr/lib/libgomp.so.1.0.0
116                        /usr/lib/libicui18n.so.67.1
117                        /usr/lib/libicui18n.so.67.1
118                        /usr/lib/libicui18n.so.67.1
119                        /usr/lib/libicui18n.so.67.1
120                        /usr/lib/libicui18n.so.67.1
121                        /usr/lib/libicui18n.so.67.1
122                          /usr/lib/libicuuc.so.67.1
123                          /usr/lib/libicuuc.so.67.1
124                          /usr/lib/libicuuc.so.67.1
125                          /usr/lib/libicuuc.so.67.1
126                          /usr/lib/libicuuc.so.67.1
127                                                   
128                        /usr/lib/libdl-2.32.9000.so
129                        /usr/lib/libdl-2.32.9000.so
130                        /usr/lib/libdl-2.32.9000.so
131                        /usr/lib/libdl-2.32.9000.so
132                                                   
133                            /usr/lib/libz.so.1.2.11
134                            /usr/lib/libz.so.1.2.11
135                            /usr/lib/libz.so.1.2.11
136                            /usr/lib/libz.so.1.2.11
137                                                   
138                           /usr/lib/libbz2.so.1.0.8
139                           /usr/lib/libbz2.so.1.0.8
140                           /usr/lib/libbz2.so.1.0.8
141                           /usr/lib/libbz2.so.1.0.8
142                           /usr/lib/libbz2.so.1.0.8
143                           /usr/lib/libbz2.so.1.0.8
144                          /usr/lib/liblzma.so.5.2.5
145                          /usr/lib/liblzma.so.5.2.5
146                          /usr/lib/liblzma.so.5.2.5
147                          /usr/lib/liblzma.so.5.2.5
148                                                   
149                      /usr/lib/libpcre2-8.so.0.10.1
150                      /usr/lib/libpcre2-8.so.0.10.1
151                      /usr/lib/libpcre2-8.so.0.10.1
152                      /usr/lib/libpcre2-8.so.0.10.1
153                      /usr/lib/libpcre2-8.so.0.10.1
154                           /usr/lib/libtre.so.5.0.0
155                           /usr/lib/libtre.so.5.0.0
156                           /usr/lib/libtre.so.5.0.0
157                           /usr/lib/libtre.so.5.0.0
158                                                   
159                        /usr/lib/libreadline.so.8.0
160                        /usr/lib/libreadline.so.8.0
161                        /usr/lib/libreadline.so.8.0
162                        /usr/lib/libreadline.so.8.0
163                        /usr/lib/libreadline.so.8.0
164                                                   
165                         /usr/lib/libm-2.32.9000.so
166                         /usr/lib/libm-2.32.9000.so
167                         /usr/lib/libm-2.32.9000.so
168                         /usr/lib/libm-2.32.9000.so
169                         /usr/lib/libm-2.32.9000.so
170                       /usr/lib/libflexiblas.so.3.0
171                       /usr/lib/libflexiblas.so.3.0
172                       /usr/lib/libflexiblas.so.3.0
173                       /usr/lib/libflexiblas.so.3.0
174                       /usr/lib/libflexiblas.so.3.0
175                                                   
176                         /usr/lib/libc-2.32.9000.so
177                         /usr/lib/libc-2.32.9000.so
178                         /usr/lib/libc-2.32.9000.so
179                         /usr/lib/libc-2.32.9000.so
180                         /usr/lib/libc-2.32.9000.so
181                                                   
182                             /usr/lib/R/lib/libR.so
183                             /usr/lib/R/lib/libR.so
184                             /usr/lib/R/lib/libR.so
185                             /usr/lib/R/lib/libR.so
186                             /usr/lib/R/lib/libR.so
187                                                   
188                                             [vvar]
189                                             [vdso]
190                           /usr/lib/ld-2.32.9000.so
191                           /usr/lib/ld-2.32.9000.so
192                           /usr/lib/ld-2.32.9000.so
193 /usr/lib/locale/C.utf8/LC_MESSAGES/SYS_LC_MESSAGES
194                           /usr/lib/ld-2.32.9000.so
195                           /usr/lib/ld-2.32.9000.so
196                                            [stack]

@krlmlr
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krlmlr commented Jan 2, 2021

From your description it seems that IPs are retrieved incorrectly. The C code collects IPs, formats them as hex string and passes them on to the R code.

I wonder if there's a chance to replicate this on Linux or perhaps even on GitHub Actions.

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