Bug 16268

Summary: OSError silently ignored in do_fetch
Product: [Build System, Metadata & Runtime] BitBake Reporter: Anthony Squires <me>
Component: bitbakeAssignee: Anthony Squires <me>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: Medium CC: mathieu.dubois-briand, poky.bs.watcher, poky.watcher, richard.purdie
Version: 5.0.19   
Target Milestone: 6.1   
Hardware: All   
OS: Multiple   
Whiteboard:
OS type for building Yocto: --- Type of Regression: ---
Verified: Documentation change: No (bug/feature does not impact docs)

Description Anthony Squires 2026-04-25 04:26:45 UTC
I encountered an issue during do_fetch where it silently failed due to an OSError being thrown and ignored. The task completed successfully but no file was downloaded and do_unpack subsequently failed. In my case it was Errno 36 but I think any OSError/IOError would encounter this.

Adding a "raise" on line 1934 of bitbake/lib/bb/fetch2/__init__.py resolved my issue and let me figure out the real error (that my filename was way too long).

```
 except IOError as e:
     if e.errno in [errno.ESTALE]:
         logger.error("Stale Error Observed %s." % u)
         raise ChecksumError("Stale Error Detected")
-
+    raise
 except BBFetchException as e:
```
ref:
https://git.yoctoproject.org/poky/tree/bitbake/lib/bb/fetch2/__init__.py?id=bdd2b0fee18c43597efc3493b9ac9ace9ccf7959#n1930

Happy to send a one-line patch if this is desired but figured a bug was a better place to start to provide context.
Comment 1 Richard Purdie 2026-04-28 16:37:21 UTC
Your fix looks correct to me, if you could submit a patch that would be appreciated, thanks!