Closed Bug 1263385 Opened 8 years ago Closed 6 years ago

Intermittent Linux debug W-e10s(2) "Output exceeded 52428800 bytes, remaining output has been truncated (output was 52472244 bytes)"

Categories

(Testing :: web-platform-tests, defect, P5)

Product:
Testing
Component:
web-platform-tests
Version:
Version 3
Platform:
Unspecified
Linux
Type:
defect

Tracking

(e10s+)

Status:
RESOLVED FIXED
Tracking Flags:
Tracking Status
e10s + ---

People

(Reporter: RyanVM, Assigned: jgraham)

References

(Blocks 1 open bug)

Details

(Keywords: intermittent-failure)

Attachments

(1 file, 1 obsolete file)

wpt-chunk-more.diff
1.76 KB, patch
rail
: review+
Details | Diff | Splinter Review 
https://treeherder.mozilla.org/logviewer.html#?job_id=25450862&repo=mozilla-inbound

Looking at the log, I don't see anything obviously wrong besides there being a bunch of verbose tests running in the chunk. I also downloaded the full log from a green run and it's right at 50MB uncompressed, so I think we're basically right up against the limit and occasionally get just enough noise to push us over.

IIRC, we use run-by-dir for wpt, so splitting up the tests won't help, correct? In that case, I'm not sure we have any good options here besides adding more chunks or somehow suppressing test output unless there's a failure (similar to what we do in the mochitest harness).

What do you think, James?
Flags: needinfo?(james)
We don't use --runb-by-dir (although it exists), but the point still stands; the only way to fix this is to chunk more or log less. For wpt logging less doesn't work well (because we need the result of every test), so I think the right fix is to change to 5 chunks in the buildbot configs.
Flags: needinfo?(james)
Attached patch wpt-chunk-more.diff (obsolete) — — Splinter Review 

        Attachment #8739947 -
        Flags: review?(rail)

    
    

    
  
Comment on attachment 8739947 [details] [diff] [review]
wpt-chunk-more.diff

This is on debug builds, where we're up to 8 chunks. That said, I'd be perfectly fine with going to 5/10 respectively :)

        Attachment #8739947 -
        Flags: feedback-

    
    

    
  


  
/me goes to get his eyes tested
Assignee: nobody → james

        Attachment #8739947 -
        Attachment is obsolete: true

        Attachment #8739947 -
        Flags: review?(rail)

        Attachment #8739959 -
        Flags: review?(rail)

    
  

        Attachment #8739959 -
        Flags: review?(rail) → review+

    
    

    
  
https://hg.mozilla.org/build/buildbot-configs/rev/ee9a45746a10495f2d07f3ca9d3ada477e9dfbf8
Bug 1263385 - Increase the number of wpt[-e10s] opt chunks to 5 and debug to 10, r=rail
Blocks: e10s-tests

          tracking-e10s:
          --- → +

    
    

    
      
  

    
    

    
      
  

    
    

    
  
Tough to estimate what the real failure rate of this is, since I only star failures as this bug when there's another failure plus this maybe 10% of the time, and I've seen no reason to believe that anyone else ever stars it at all. Maybe somewhere around five times as frequent as the starring would indicate?

    
    

    
      
  

    
    

    
      
  

    
    

    
  
Intermittent e10s test failure
Priority: -- → P5

    
    

    
  
(In reply to Release Engineering SlaveAPI Service from comment #6)
> In production: https://hg.mozilla.org/build/buildbot-configs/rev/ee9a45746a10

But nothing in the releng landing system closes your bug for you.
Status: NEW → RESOLVED
Closed: 6 years ago
Resolution: --- → FIXED

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