Fyzics (Nov 20 2023 at 21:17): Fyzics (Nov 20 2023 at 21:17):Re: https://www.reddit.com/r/ProgrammingLanguages/comments/17zp4m7/comment/ka23kwi/
@Richard Feldman
OS: Linux
Kernel: 6.6.1-arch1-1
Roc version: nightly pre-release, built from commit 48e9b53 on So 19 Nov 2023 09:07:19 UTC
git clone https://github.com/roc-lang/roc.git
cd roc/examples/cli
roc build file.roc
./file
#FISH
cwd: /home/dev/programs/rocgit/examples/cli
Dir.list...
munmap_chunk(): invalid pointer
fish: Job 1, './file' terminated by signal SIGABRT (Abort)
#BASH
cwd: /home/dev/programs/rocgit/examples/cli
Dir.list...
munmap_chunk(): invalid pointer
Aborted (core dumped)
thanks for reporting this! Would you mind sharing what Linux distro this was?
Richard Feldman (Nov 20 2023 at 21:52):might help us reproduce
Brendan Hansknecht (Nov 20 2023 at 21:59):I'm pretty sure this is an old issue that I have looked at a few times and am still confused by.
Richard Feldman (Nov 20 2023 at 22:01):interesting - when I dbg the error, it's showing NotSeekable - @Luke Boswell any ideas on why basic-cli would be giving a NotSeekable error there? Maybe a glue issue, and the value is coming across wrong?
Fyzics (Nov 20 2023 at 22:06):Richard Feldman said:
thanks for reporting this! Would you mind sharing what Linux distro this was?
EndeavourOS Linux x86_64
Richard Feldman (Nov 20 2023 at 22:07):thanks!
Richard Feldman (Nov 20 2023 at 22:08):@Brendan Hansknecht any chance your recent glue updates would fix this in basic-cli 0.6, or at least change the error in a way that gives a clue what the problem is?
Brendan Hansknecht (Nov 20 2023 at 22:18):not that I know of. But maybe changing to passing pointers for glue functions might fix this.
Brendan Hansknecht (Nov 20 2023 at 22:18):In general I think Dir.list has been broken for a long while due to some strange memory bug. It may also be what is breaking #beginners > listing files in a directory
Brendan Hansknecht (Nov 20 2023 at 22:19):Been a while since I looked at any of this, so would have to refresh myself
Luke Boswell (Nov 20 2023 at 22:25):Dir.list is definitely broken on basic cli. I just fixed it for basic webserver yesterday. We can copy-paste that implementation and it should be identical. (on my phone rn)
Luke Boswell (Nov 20 2023 at 22:26):I was thinking this morning before work I should make a PR for that before someone runs into that issue. :upside_down:
Jakub (Nov 20 2023 at 22:28):@Brendan Hansknecht @Luke Boswell how difficult is fixing this type of bug for a person who only has a vague of how Rust and how compilers work? is it more like:
good first issue tag Luke Boswell (Nov 20 2023 at 22:28):Im not sure about the NotSeekable error specifically, I can look into it but I'm pretty sure the current implementation just returns a hardcoded Error tag.
Luke Boswell (Nov 20 2023 at 22:30):This is super easy really. There is an identical implementation working in basic-webserver that can be copied into basic-cli. Its in the platform/src/lib.rs file. Both called dirList. Acutally I think roc_fx_dirList and dir_list.
Jakub (Nov 20 2023 at 22:36):found it, todo!("handle Dir.list error"); might be the reason ;)
Brendan Hansknecht (Nov 20 2023 at 22:40):Oh, I just realized that this is using the file.roc from the roc repo, which uses the super old fork of basic cli. I think that we should really remove that old fork of basic cli and make these either:
As it stands, we are just asking for extra bugs and confusion.
Luke Boswell (Nov 20 2023 at 22:41):We wanted to keep some examples in the repository for testing reasons. Maybe these should be moved out of the examples folder and deeper into a testing crate?
Luke Boswell (Nov 20 2023 at 22:42):A lot of people click on the examples folder in the top level of the repository
Brendan Hansknecht (Nov 20 2023 at 22:44):I know, I strongly think we should re-evaluate that for anything basic-cli, basic-cli lives elsewhere now. Also, yeah, anything depending on a local basic-cli should move to cli testing examples. We can still have examples that use the proper distribution of basic cli
Brendan Hansknecht (Nov 20 2023 at 22:48):Also, NotSeekable and Other are 1 away from each other in the enum. Maybe something is off by one or glue needs to be regenerated? Not fully sure, but it should be returning Other according to the current source code. Some reason, that is just becoming a NotSeekable I guess it is also possible that it is a dbg bug.
Roberto Rodriguez Jr (Nov 20 2023 at 23:22):cwd: /home/bob/roc/examples/cli
Dir.list...
fish: Job 1, 'roc run file.roc' terminated by signal SIGSEGV (Address boundary error)
roc build file.roc
:hammer: Rebuilding platform...
0 errors and 0 warnings found in 590 ms while successfully building:
file
./file echo.roc
cwd: /home/bob/roc/examples/cli
Dir.list...
fish: Job 1, './file echo.roc' terminated by signal SIGSEGV (Address boundary error)
./file
cwd: /home/bob/roc/examples/cli
Dir.list...
fish: Job 1, './file' terminated by signal SIGSEGV (Address boundary error)
Just wanted to update that it still fails? Im a n00b.
Last updated: Jul 26 2025 at 12:14 UTC