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linux[4.2.5-1-ARCH][system[GNU C Library (GNU libc) stable release version 2.22, by Roland McGrath et al.]][path=/mnt/flashix/[unknown]]@[2015-12-14T16:11:13Z./nix/store/qf513g69n2gy4prf0yhgggwimyl8q7kd-fs_test]

Checked Trace
linux_spec@[/nix/store/qf513g69n2gy4prf0yhgggwimyl8q7kd-fs_test] sexp stdout stderr
Traced Execution stdout stderr
Script script

Combined Trace

1 # processing file 'adhoc_symlink_cycles-int.trace' ...
2 @type trace
3 # adhoc_symlink_cycles
4
5 # cyclic links can be created, but raise ELOOP when followed
6 symlink "/1" "/2"
7 Tau
8 RV_none
9 symlink "/2" "/1"
10 Tau
11 RV_none
12 chdir "/1"
13 Tau
14 ELOOP
15 dump-result /
/ D 470531
/1 L /2
/2 L /1
16 unlink "/1"
17 Tau
18 RV_none
19 unlink "/2"
20 Tau
21 RV_none
22
23 # self-cycles are still cycles
24 symlink "/1" "/2"
25 Tau
26 RV_none
27 link "/2" "/1"
28 Tau
29 RV_none
30 chdir "/2"
31 Tau
32 ELOOP
33 dump-result /
/ D 470531
/1 L /1
/2 L /1
34 unlink "/1"
35 Tau
36 RV_none
37 unlink "/2"
38 Tau
39 RV_none
40
41 # introductory slides don't matter for ELOOP
42 symlink "/1" "/slide_1"
43 Tau
44 RV_none
45 symlink "/slide_1" "/slide_2"
46 Tau
47 RV_none
48 symlink "/slide_2" "/slide_3"
49 Tau
50 RV_none
51 symlink "/2" "/1"
52 Tau
53 RV_none
54 symlink "/1" "/2"
55 Tau
56 RV_none
57 chdir "/slide_3"
58 Tau
59 ELOOP
60 unlink "/1"
61 Tau
62 RV_none
63 unlink "/2"
64 Tau
65 RV_none
66 unlink "/slide_1"
67 Tau
68 RV_none
69 unlink "/slide_2"
70 Tau
71 RV_none
72 unlink "/slide_3"
73 Tau
74 RV_none
75 dump-result /
/ D 470531
76
77 # directory loops are fine
78 mkdir "/mua" 0o777
79 Tau
80 RV_none
81 symlink "../mua" "mua/ha"
82 Tau
83 RV_none
84 chdir "mua/ha/ha/ha"
85 Tau
86 RV_none
87
88 # ... even multiplicative ones...
89 symlink "../mua/ha/ha/ha" "he"
90 Tau
91 RV_none
92 chdir "he/he/he"
93 Tau
94 RV_none
95 symlink "../mua/he/he/he" "ho"
96 Tau
97 RV_none
98 chdir "ho/ho/ho"
99 Tau
100 RV_none
101
102 # ... but symlinks with directory loops are not
103 symlink "ho/ho/ho/eloop" "eloop"
104 Tau
105 RV_none
106 chdir "eloop"
107 Tau
108 ELOOP
109
110 chdir ".."
111 Tau
112 RV_none
113
114 dump-result .
. D 470531
./mua D 470550
./mua/eloop L ho/ho/ho/eloop
./mua/ha L ../mua
./mua/he L ../mua/ha/ha/ha
./mua/ho L ../mua/he/he/he
115
116
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