[Chicken-janitors] #892: Segfault on insanely long lists

[Chicken Trac]

#892: Segfault on insanely long lists
-------------------------------+--------------------------------------------
 Reporter:  sjamaan            |       Owner:       
     Type:  defect             |      Status:  new  
 Priority:  major              |   Milestone:  4.8.0
Component:  unknown            |     Version:  4.7.x
 Keywords:  segfaults are fun  |  
-------------------------------+--------------------------------------------
 This silly invocation fails, hard (after eating up a lot of memory):

 {{{
 csi -e "(use srfi-1) (let lp ((l (iota 10000000))) (lp (reverse l)))"
 }}}

 It gives a segfault when it's printing something like this:
 {{{
 Error: (reverse) bad argument type - not a proper list: (0 1 2 3 4 5 6 7 8
 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83
 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105
 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123
 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141
 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159
 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177
 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195
 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213
 214 215 216 217 218 . 70093846267453)
 }}}

 Other errors I've seen are:

 {{{
 Error: (reverse) bad argument type - not a proper list: (0 1 2 3 4 5 6 7 8
 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
 59 60 61 62 63 64 65 66 67 . #<invalid forwarded object>)
 }}}

 and (but this is when I tried it with 4.7.0):

 {{{
 Error: (reverse) bad argument type - not a proper list: (0 1 2 3 4 5 6 7 8
 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
 #(##sys#fnord ##sys#fnord ##sys#fnord ##sys#fnord ##sys#fnord 143
 }}}

-- 
Ticket URL: <http://bugs.call-cc.org/ticket/892>
Chicken Scheme <http://www.call-with-current-continuation.org/>
Chicken Scheme is a compiler for the Scheme programming language.