{"action":"created","issue":{"url":"https://api.github.com/repos/golang/go/issues/19831","repository_url":"https://api.github.com/repos/golang/go","labels_url":"https://api.github.com/repos/golang/go/issues/19831/labels{/name}","comments_url":"https://api.github.com/repos/golang/go/issues/19831/comments","events_url":"https://api.github.com/repos/golang/go/issues/19831/events","html_url":"https://github.com/golang/go/issues/19831","id":219110045,"number":19831,"title":"cmd/compile, runtime: go v1.8 fails to allocate heap bitmap on armv7 when importing zmq4","user":{"login":"plasticchris","id":7632052,"avatar_url":"https://avatars3.githubusercontent.com/u/7632052?v=3","gravatar_id":"","url":"https://api.github.com/users/plasticchris","html_url":"https://github.com/plasticchris","followers_url":"https://api.github.com/users/plasticchris/followers","following_url":"https://api.github.com/users/plasticchris/following{/other_user}","gists_url":"https://api.github.com/users/plasticchris/gists{/gist_id}","starred_url":"https://api.github.com/users/plasticchris/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/plasticchris/subscriptions","organizations_url":"https://api.github.com/users/plasticchris/orgs","repos_url":"https://api.github.com/users/plasticchris/repos","events_url":"https://api.github.com/users/plasticchris/events{/privacy}","received_events_url":"https://api.github.com/users/plasticchris/received_events","type":"User","site_admin":false},"labels":[{"id":373402289,"url":"https://api.github.com/repos/golang/go/labels/NeedsInvestigation","name":"NeedsInvestigation","color":"ededed","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":{"url":"https://api.github.com/repos/golang/go/milestones/49","html_url":"https://github.com/golang/go/milestone/49","labels_url":"https://api.github.com/repos/golang/go/milestones/49/labels","id":2053058,"number":49,"title":"Go1.9","description":"","creator":{"login":"rsc","id":104030,"avatar_url":"https://avatars2.githubusercontent.com/u/104030?v=3","gravatar_id":"","url":"https://api.github.com/users/rsc","html_url":"https://github.com/rsc","followers_url":"https://api.github.com/users/rsc/followers","following_url":"https://api.github.com/users/rsc/following{/other_user}","gists_url":"https://api.github.com/users/rsc/gists{/gist_id}","starred_url":"https://api.github.com/users/rsc/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rsc/subscriptions","organizations_url":"https://api.github.com/users/rsc/orgs","repos_url":"https://api.github.com/users/rsc/repos","events_url":"https://api.github.com/users/rsc/events{/privacy}","received_events_url":"https://api.github.com/users/rsc/received_events","type":"User","site_admin":false},"open_issues":535,"closed_issues":276,"state":"open","created_at":"2016-10-06T18:17:55Z","updated_at":"2017-04-04T05:02:11Z","due_on":"2017-07-31T07:00:00Z","closed_at":null},"comments":18,"created_at":"2017-04-04T00:54:56Z","updated_at":"2017-04-04T21:03:50Z","closed_at":null,"body":"go version\r\n1.8  linux/amd64\r\n\r\ngo env ($TOOLCHAIN and $SYSROOT are for cross compile)\r\nGOHOSTARCH=\"amd64\"\r\nGOHOSTOS=\"linux\"\r\nGOOS=\"linux\"\r\nCGO_ENABLED=1\r\nC_INCLUDE_PATH=$SYSROOT/usr/include/\r\nLIBRARY_PATH=$SYSROOT/usr/lib\r\nCC=$TOOLCHAIN\r\nPKG_CONFIG_PATH=$SYSROOT/usr/lib/pkgconfig/\r\nGOARCH=arm\r\nGOARM=7 \r\n\r\nI'm using go v1.8 to cross compile to an armv7 target and everything works until I import zeromq, and then not even this works:\r\n\r\n    package main\r\n    \r\n    import (\r\n    \tzmq \"github.com/pebbe/zmq4\"\r\n    \t\"fmt\"\r\n    )\r\n    \r\n    func main() {\r\n    fmt.Println(zmq.Version())\r\n    }\r\n\r\nRunning it on the target gives the following:\r\n\r\n    ./zmq \r\n    fatal error: runtime: out of memory\r\n    \r\n    runtime stack:\r\n    runtime.throw(0xc8d3d, 0x16)\r\n            /usr/lib/go/src/runtime/panic.go:596 +0x70 fp=0x7eb018a0 sp=0x7eb01894\r\n    runtime.sysMap(0x6d752000, 0x74d4000, 0x1, 0x146b60)\r\n            /usr/lib/go/src/runtime/mem_linux.go:227 +0xb0 fp=0x7eb018c4 sp=0x7eb018a0\r\n    runtime.(*mheap).mapBits(0x139d58, 0x74d26000)\r\n            /usr/lib/go/src/runtime/mbitmap.go:159 +0x94 fp=0x7eb018dc sp=0x7eb018c4\r\n    runtime.(*mheap).sysAlloc(0x139d58, 0x100000, 0x30414)\r\n            /usr/lib/go/src/runtime/malloc.go:428 +0x2dc fp=0x7eb0191c sp=0x7eb018dc\r\n    runtime.(*mheap).grow(0x139d58, 0x8, 0x0)\r\n            /usr/lib/go/src/runtime/mheap.go:774 +0xd0 fp=0x7eb0194c sp=0x7eb0191c\r\n    runtime.(*mheap).allocSpanLocked(0x139d58, 0x1, 0x0)\r\n            /usr/lib/go/src/runtime/mheap.go:678 +0x468 fp=0x7eb0196c sp=0x7eb0194c\r\n    runtime.(*mheap).alloc_m(0x139d58, 0x1, 0x10, 0x0, 0x0)\r\n            /usr/lib/go/src/runtime/mheap.go:562 +0xdc fp=0x7eb019a4 sp=0x7eb0196c\r\n    runtime.(*mheap).alloc.func1()\r\n            /usr/lib/go/src/runtime/mheap.go:627 +0x3c fp=0x7eb019c0 sp=0x7eb019a4\r\n    runtime.systemstack(0x7eb019d4)\r\n            /usr/lib/go/src/runtime/asm_arm.s:278 +0xa8 fp=0x7eb019c4 sp=0x7eb019c0\r\n    runtime.(*mheap).alloc(0x139d58, 0x1, 0x10, 0x100, 0x1)\r\n            /usr/lib/go/src/runtime/mheap.go:628 +0x60 fp=0x7eb019ec sp=0x7eb019c4\r\n    runtime.(*mcentral).grow(0x13ab98, 0x0)\r\n            /usr/lib/go/src/runtime/mcentral.go:212 +0x84 fp=0x7eb01a18 sp=0x7eb019ec\r\n    runtime.(*mcentral).cacheSpan(0x13ab98, 0x146b68)\r\n            /usr/lib/go/src/runtime/mcentral.go:93 +0x104 fp=0x7eb01a5c sp=0x7eb01a18\r\n    runtime.(*mcache).refill(0x649e5000, 0x10, 0x146b68)\r\n            /usr/lib/go/src/runtime/mcache.go:122 +0x7c fp=0x7eb01a70 sp=0x7eb01a5c\r\n    runtime.(*mcache).nextFree.func1()\r\n            /usr/lib/go/src/runtime/malloc.go:525 +0x24 fp=0x7eb01a80 sp=0x7eb01a70\r\n    runtime.systemstack(0x7eb01aa4)\r\n            /usr/lib/go/src/runtime/asm_arm.s:278 +0xa8 fp=0x7eb01a84 sp=0x7eb01a80\r\n    runtime.(*mcache).nextFree(0x649e5000, 0x649e5010, 0x7eb01acc, 0x1ebd4, 0x21c40)\r\n            /usr/lib/go/src/runtime/malloc.go:526 +0x9c fp=0x7eb01ab0 sp=0x7eb01a84\r\n    runtime.mallocgc(0xf0, 0xc2548, 0x1, 0x64a26001)\r\n            /usr/lib/go/src/runtime/malloc.go:678 +0x8c0 fp=0x7eb01b08 sp=0x7eb01ab0\r\n    runtime.newobject(0xc2548, 0x1384a0)\r\n            /usr/lib/go/src/runtime/malloc.go:807 +0x2c fp=0x7eb01b1c sp=0x7eb01b08\r\n    runtime.malg(0x8000, 0x2710)\r\n            /usr/lib/go/src/runtime/proc.go:2821 +0x1c fp=0x7eb01b38 sp=0x7eb01b1c\r\n    runtime.mpreinit(0x138730)\r\n            /usr/lib/go/src/runtime/os_linux.go:302 +0x1c fp=0x7eb01b44 sp=0x7eb01b38\r\n    runtime.mcommoninit(0x138730)\r\n            /usr/lib/go/src/runtime/proc.go:540 +0x94 fp=0x7eb01b5c sp=0x7eb01b44\r\n    runtime.schedinit()\r\n            /usr/lib/go/src/runtime/proc.go:476 +0x40 fp=0x7eb01b78 sp=0x7eb01b5c\r\n    runtime.rt0_go(0x7eb01d14, 0x76ee4000, 0x7eb01d14, 0x1, 0x5cd10, 0x7eb01c58, 0x76f8e000, 0xcef6f281, 0xc6a63e08, 0x128, ...)\r\n            /usr/lib/go/src/runtime/asm_arm.s:61 +0x84 fp=0x7eb01bb8 sp=0x7eb01b78\r\n\r\nTracing shows the offending mmap:\r\n\r\n    mmap2(0x74c54000, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x74c54000\r\n    mmap2(0x6d77e000, 122511360, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = -1 ENOMEM (Cannot allocate memory)\r\n\r\nThe first one is right, that's the chunk size, but the second is where it allocates the bitmap. It should be probably 16x smaller.\r\n\r\nI tried debugging but it works under GDB. Maybe GDB does some virtualization?\r\n\r\n    gdbserver :1000 zmq\r\n    Process zmq created; pid = 817\r\n    Listening on port 1000\r\n    Remote debugging from host 10.0.0.36\r\n    4 2 1\r\n    \r\n    Child exited with status 0\r\n\r\nSo far, all pure go programs I've tested work as well.\r\n\r\nWhy does importing zeromq cause it to fail? Is there a bug in the arm port of go?\r\n\r\n\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/golang/go/issues/comments/291631275","html_url":"https://github.com/golang/go/issues/19831#issuecomment-291631275","issue_url":"https://api.github.com/repos/golang/go/issues/19831","id":291631275,"user":{"login":"plasticchris","id":7632052,"avatar_url":"https://avatars3.githubusercontent.com/u/7632052?v=3","gravatar_id":"","url":"https://api.github.com/users/plasticchris","html_url":"https://github.com/plasticchris","followers_url":"https://api.github.com/users/plasticchris/followers","following_url":"https://api.github.com/users/plasticchris/following{/other_user}","gists_url":"https://api.github.com/users/plasticchris/gists{/gist_id}","starred_url":"https://api.github.com/users/plasticchris/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/plasticchris/subscriptions","organizations_url":"https://api.github.com/users/plasticchris/orgs","repos_url":"https://api.github.com/users/plasticchris/repos","events_url":"https://api.github.com/users/plasticchris/events{/privacy}","received_events_url":"https://api.github.com/users/plasticchris/received_events","type":"User","site_admin":false},"created_at":"2017-04-04T21:03:50Z","updated_at":"2017-04-04T21:03:50Z","body":"> @plasticchris, can you post the output of readelf --segments --sections on both the locally and cross-compiled binaries?\r\n\r\n```\r\npi@raspberrypi:~ $ diff cross native\r\n1d0\r\n<  readelf --segments --sections hi\r\n7,13c6,12\r\n<   [ 1] .text             PROGBITS        00011000 001000 07017c 00  AX  0   0  4\r\n<   [ 2] .rodata           PROGBITS        00090000 080000 025a66 00   A  0   0  8\r\n<   [ 3] .shstrtab         STRTAB          00000000 0a5a68 000101 00      0   0  1\r\n<   [ 4] .typelink         PROGBITS        000b5b70 0a5b70 000ac8 00   A  0   0  8\r\n<   [ 5] .itablink         PROGBITS        000b6638 0a6638 00001c 00   A  0   0  4\r\n<   [ 6] .gosymtab         PROGBITS        000b6654 0a6654 000000 00   A  0   0  1\r\n<   [ 7] .gopclntab        PROGBITS        000b6658 0a6658 038bd7 00   A  0   0  8\r\n---\r\n>   [ 1] .text             PROGBITS        00011000 001000 0700f0 00  AX  0   0  4\r\n>   [ 2] .rodata           PROGBITS        00090000 080000 025a55 00   A  0   0  8\r\n>   [ 3] .shstrtab         STRTAB          00000000 0a5a58 000101 00      0   0  1\r\n>   [ 4] .typelink         PROGBITS        000b5b60 0a5b60 000ac8 00   A  0   0  8\r\n>   [ 5] .itablink         PROGBITS        000b6628 0a6628 00001c 00   A  0   0  4\r\n>   [ 6] .gosymtab         PROGBITS        000b6644 0a6644 000000 00   A  0   0  1\r\n>   [ 7] .gopclntab        PROGBITS        000b6648 0a6648 038cc4 00   A  0   0  8\r\n19,25c18,24\r\n<   [13] .debug_line       PROGBITS        001100ff 0f00ff 010905 00      0   0  1\r\n<   [14] .debug_frame      PROGBITS        00120a04 100a04 00d7fc 00      0   0  1\r\n<   [15] .debug_pubnames   PROGBITS        0012e200 10e200 0024fa 00      0   0  1\r\n<   [16] .debug_pubtypes   PROGBITS        001306fa 1106fa 007329 00      0   0  1\r\n<   [17] .debug_aranges    PROGBITS        00137a23 117a23 000020 00      0   0  1\r\n<   [18] .debug_gdb_script PROGBITS        00137a43 117a43 000028 00      0   0  1\r\n<   [19] .debug_info       PROGBITS        00137a6b 117a6b 0308ef 00      0   0  1\r\n---\r\n>   [13] .debug_line       PROGBITS        001100ff 0f00ff 0109e9 00      0   0  1\r\n>   [14] .debug_frame      PROGBITS        00120ae8 100ae8 00d7fc 00      0   0  1\r\n>   [15] .debug_pubnames   PROGBITS        0012e2e4 10e2e4 0024fa 00      0   0  1\r\n>   [16] .debug_pubtypes   PROGBITS        001307de 1107de 007329 00      0   0  1\r\n>   [17] .debug_aranges    PROGBITS        00137b07 117b07 000020 00      0   0  1\r\n>   [18] .debug_gdb_script PROGBITS        00137b27 117b27 00002a 00      0   0  1\r\n>   [19] .debug_info       PROGBITS        00137b51 117b51 0308ec 00      0   0  1\r\n35c34\r\n< Entry point 0x5b384\r\n---\r\n> Entry point 0x5b2f8\r\n42,43c41,42\r\n<   LOAD           0x000000 0x00010000 0x00010000 0x7117c 0x7117c R E 0x10000\r\n<   LOAD           0x080000 0x00090000 0x00090000 0x5f22f 0x5f22f R   0x10000\r\n---\r\n>   LOAD           0x000000 0x00010000 0x00010000 0x710f0 0x710f0 R E 0x10000\r\n>   LOAD           0x080000 0x00090000 0x00090000 0x5f30c 0x5f30c R   0x10000\r\n53c52\r\n<    03     .rodata .typelink .itablink .gosymtab .gopclntab \r\n---\r\n>    03     .rodata .shstrtab .typelink .itablink .gosymtab .gopclntab \r\n57d55\r\n< \r\npi@raspberrypi:~ $ cat cross\r\n readelf --segments --sections hi\r\nThere are 23 section headers, starting at offset 0x114:\r\n\r\nSection Headers:\r\n  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al\r\n  [ 0]                   NULL            00000000 000000 000000 00      0   0  0\r\n  [ 1] .text             PROGBITS        00011000 001000 07017c 00  AX  0   0  4\r\n  [ 2] .rodata           PROGBITS        00090000 080000 025a66 00   A  0   0  8\r\n  [ 3] .shstrtab         STRTAB          00000000 0a5a68 000101 00      0   0  1\r\n  [ 4] .typelink         PROGBITS        000b5b70 0a5b70 000ac8 00   A  0   0  8\r\n  [ 5] .itablink         PROGBITS        000b6638 0a6638 00001c 00   A  0   0  4\r\n  [ 6] .gosymtab         PROGBITS        000b6654 0a6654 000000 00   A  0   0  1\r\n  [ 7] .gopclntab        PROGBITS        000b6658 0a6658 038bd7 00   A  0   0  8\r\n  [ 8] .noptrdata        PROGBITS        000f0000 0e0000 001d28 00  WA  0   0  8\r\n  [ 9] .data             PROGBITS        000f1d28 0e1d28 000e38 00  WA  0   0  8\r\n  [10] .bss              NOBITS          000f2b60 0e2b60 00d6b8 00  WA  0   0  8\r\n  [11] .noptrbss         NOBITS          00100218 0f0218 004120 00  WA  0   0  8\r\n  [12] .debug_abbrev     PROGBITS        00110000 0f0000 0000ff 00      0   0  1\r\n  [13] .debug_line       PROGBITS        001100ff 0f00ff 010905 00      0   0  1\r\n  [14] .debug_frame      PROGBITS        00120a04 100a04 00d7fc 00      0   0  1\r\n  [15] .debug_pubnames   PROGBITS        0012e200 10e200 0024fa 00      0   0  1\r\n  [16] .debug_pubtypes   PROGBITS        001306fa 1106fa 007329 00      0   0  1\r\n  [17] .debug_aranges    PROGBITS        00137a23 117a23 000020 00      0   0  1\r\n  [18] .debug_gdb_script PROGBITS        00137a43 117a43 000028 00      0   0  1\r\n  [19] .debug_info       PROGBITS        00137a6b 117a6b 0308ef 00      0   0  1\r\n  [20] .note.go.buildid  NOTE            00010fc8 000fc8 000038 00   A  0   0  4\r\n  [21] .symtab           SYMTAB          00000000 150000 007ea0 10     22  93  4\r\n  [22] .strtab           STRTAB          00000000 157ea0 00bb59 00      0   0  1\r\nKey to Flags:\r\n  W (write), A (alloc), X (execute), M (merge), S (strings)\r\n  I (info), L (link order), G (group), T (TLS), E (exclude), x (unknown)\r\n  O (extra OS processing required) o (OS specific), p (processor specific)\r\n\r\nElf file type is EXEC (Executable file)\r\nEntry point 0x5b384\r\nThere are 7 program headers, starting at offset 52\r\n\r\nProgram Headers:\r\n  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align\r\n  PHDR           0x000034 0x00010034 0x00010034 0x000e0 0x000e0 R   0x10000\r\n  NOTE           0x000fc8 0x00010fc8 0x00010fc8 0x00038 0x00038 R   0x4\r\n  LOAD           0x000000 0x00010000 0x00010000 0x7117c 0x7117c R E 0x10000\r\n  LOAD           0x080000 0x00090000 0x00090000 0x5f22f 0x5f22f R   0x10000\r\n  LOAD           0x0e0000 0x000f0000 0x000f0000 0x02b60 0x14338 RW  0x10000\r\n  GNU_STACK      0x000000 0x00000000 0x00000000 0x00000 0x00000 RW  0x4\r\n  LOOS+5041580   0x000000 0x00000000 0x00000000 0x00000 0x00000     0x4\r\n\r\n Section to Segment mapping:\r\n  Segment Sections...\r\n   00     \r\n   01     .note.go.buildid \r\n   02     .text .note.go.buildid \r\n   03     .rodata .typelink .itablink .gosymtab .gopclntab \r\n   04     .noptrdata .data .bss .noptrbss \r\n   05     \r\n   06     \r\n\r\npi@raspberrypi:~ $ cat native\r\nThere are 23 section headers, starting at offset 0x114:\r\n\r\nSection Headers:\r\n  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al\r\n  [ 0]                   NULL            00000000 000000 000000 00      0   0  0\r\n  [ 1] .text             PROGBITS        00011000 001000 0700f0 00  AX  0   0  4\r\n  [ 2] .rodata           PROGBITS        00090000 080000 025a55 00   A  0   0  8\r\n  [ 3] .shstrtab         STRTAB          00000000 0a5a58 000101 00      0   0  1\r\n  [ 4] .typelink         PROGBITS        000b5b60 0a5b60 000ac8 00   A  0   0  8\r\n  [ 5] .itablink         PROGBITS        000b6628 0a6628 00001c 00   A  0   0  4\r\n  [ 6] .gosymtab         PROGBITS        000b6644 0a6644 000000 00   A  0   0  1\r\n  [ 7] .gopclntab        PROGBITS        000b6648 0a6648 038cc4 00   A  0   0  8\r\n  [ 8] .noptrdata        PROGBITS        000f0000 0e0000 001d28 00  WA  0   0  8\r\n  [ 9] .data             PROGBITS        000f1d28 0e1d28 000e38 00  WA  0   0  8\r\n  [10] .bss              NOBITS          000f2b60 0e2b60 00d6b8 00  WA  0   0  8\r\n  [11] .noptrbss         NOBITS          00100218 0f0218 004120 00  WA  0   0  8\r\n  [12] .debug_abbrev     PROGBITS        00110000 0f0000 0000ff 00      0   0  1\r\n  [13] .debug_line       PROGBITS        001100ff 0f00ff 0109e9 00      0   0  1\r\n  [14] .debug_frame      PROGBITS        00120ae8 100ae8 00d7fc 00      0   0  1\r\n  [15] .debug_pubnames   PROGBITS        0012e2e4 10e2e4 0024fa 00      0   0  1\r\n  [16] .debug_pubtypes   PROGBITS        001307de 1107de 007329 00      0   0  1\r\n  [17] .debug_aranges    PROGBITS        00137b07 117b07 000020 00      0   0  1\r\n  [18] .debug_gdb_script PROGBITS        00137b27 117b27 00002a 00      0   0  1\r\n  [19] .debug_info       PROGBITS        00137b51 117b51 0308ec 00      0   0  1\r\n  [20] .note.go.buildid  NOTE            00010fc8 000fc8 000038 00   A  0   0  4\r\n  [21] .symtab           SYMTAB          00000000 150000 007ea0 10     22  93  4\r\n  [22] .strtab           STRTAB          00000000 157ea0 00bb59 00      0   0  1\r\nKey to Flags:\r\n  W (write), A (alloc), X (execute), M (merge), S (strings)\r\n  I (info), L (link order), G (group), T (TLS), E (exclude), x (unknown)\r\n  O (extra OS processing required) o (OS specific), p (processor specific)\r\n\r\nElf file type is EXEC (Executable file)\r\nEntry point 0x5b2f8\r\nThere are 7 program headers, starting at offset 52\r\n\r\nProgram Headers:\r\n  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align\r\n  PHDR           0x000034 0x00010034 0x00010034 0x000e0 0x000e0 R   0x10000\r\n  NOTE           0x000fc8 0x00010fc8 0x00010fc8 0x00038 0x00038 R   0x4\r\n  LOAD           0x000000 0x00010000 0x00010000 0x710f0 0x710f0 R E 0x10000\r\n  LOAD           0x080000 0x00090000 0x00090000 0x5f30c 0x5f30c R   0x10000\r\n  LOAD           0x0e0000 0x000f0000 0x000f0000 0x02b60 0x14338 RW  0x10000\r\n  GNU_STACK      0x000000 0x00000000 0x00000000 0x00000 0x00000 RW  0x4\r\n  LOOS+5041580   0x000000 0x00000000 0x00000000 0x00000 0x00000     0x4\r\n\r\n Section to Segment mapping:\r\n  Segment Sections...\r\n   00     \r\n   01     .note.go.buildid \r\n   02     .text .note.go.buildid \r\n   03     .rodata .shstrtab .typelink .itablink .gosymtab .gopclntab \r\n   04     .noptrdata .data .bss .noptrbss \r\n   05     \r\n   06     \r\n\r\n```"}}
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