Stream: git-wasmtime

Topic: wasmtime / Issue #511 write failed error running in wasmtime

Wasmtime GitHub notifications bot (Mar 20 2021 at 16:57):

bjorn3 commented on Issue #511:

I think this should be closed. It has been a year without response and in the mean time the wasi implementation has been completely rewritten.

Wasmtime GitHub notifications bot (Mar 20 2021 at 18:15):

peterhuene commented on Issue #511:

Agreed. @leonardas103 if you're able to reproduce this with a recent Wasmtime build, please let us know.

Wasmtime GitHub notifications bot (Mar 20 2021 at 18:15):

peterhuene closed Issue #511:

This is somewhat related to: Issue

In wasmtime writing to file I get the following error:

thread 'main' panicked at 'write failed: Os { code: 76, kind: Other, message: "Capabilities insufficient" }', src/libcore/result.rs:1084:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace.
error: failed to process main module `demo.wasm`
    caused by: Instantiation error: Trap occurred while invoking start function: wasm trap: unreachable, source location: @3adc6

I do include the file directory properly: wasmtime --dir=. demo.wasm '{"a":"txt","b": 1}'
While with wasmer I do not get this error.
Note: See the code linked in the wasmer issue. Also, this error is the same without the append flag.

Wasmtime GitHub notifications bot (Mar 22 2021 at 15:34):

leonardas103 commented on Issue #511:

Now when I run my old wasm file with wasmtime (0.25.0) I get:

Error: failed to run main module `demo_old.wasm`

Caused by:
    0: failed to instantiate "demo_old.wasm"
    1: command export '__rustc_debug_gdb_scripts_section__' is not a function

I recompiled the code with the latest rust (1.50.0) and the program works as intended, however in the trace there was an error:

 TRACE wasi_common::snapshots::preview_1::wasi_snapshot_preview1 > wiggle abi; module="wasi_snapshot_preview1" function="environ_sizes_get"
 TRACE wasi_common::snapshots::preview_1::wasi_snapshot_preview1 > result=Ok((0, 0))
 TRACE wasi_common::snapshots::preview_1::wasi_snapshot_preview1 > wiggle abi; module="wasi_snapshot_preview1" function="fd_prestat_get"
 TRACE wasi_common::snapshots::preview_1::wasi_snapshot_preview1 > fd=Fd(3)
 TRACE wasi_common::snapshots::preview_1::wasi_snapshot_preview1 > result=Ok(Dir(PrestatDir { pr_name_len: 1 }))
 TRACE wasi_common::snapshots::preview_1::wasi_snapshot_preview1 > wiggle abi; module="wasi_snapshot_preview1" function="fd_prestat_dir_name"
 TRACE wasi_common::snapshots::preview_1::wasi_snapshot_preview1 > fd=Fd(3) path=*guest 0x110010 path_len=1
 TRACE wasi_common::snapshots::preview_1::wasi_snapshot_preview1 > result=Ok(())
 TRACE wasi_common::snapshots::preview_1::wasi_snapshot_preview1 > wiggle abi; module="wasi_snapshot_preview1" function="fd_prestat_get"
 TRACE wasi_common::snapshots::preview_1::wasi_snapshot_preview1 > fd=Fd(4)
 TRACE wasi_common::snapshots::preview_1::wasi_snapshot_preview1 > result=Err(Badf: Bad file descriptor)
 DEBUG wasi_common::snapshots::preview_1                         > **Error: Badf: Bad file descriptor**
 TRACE wasi_common::snapshots::preview_1::wasi_snapshot_preview1 > wiggle abi; module="wasi_snapshot_preview1" function="fd_write"
 TRACE wasi_common::snapshots::preview_1::wasi_snapshot_preview1 > fd=Fd(1) iovs=*guest 0xffcb0/1
 TRACE wasi_common::snapshots::preview_1::wasi_snapshot_preview1 > result=Ok(43)

But this is probably nothing. The program writes to file as intended.

Last updated: Nov 22 2024 at 16:03 UTC