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Issue metadata

Status: Duplicate
Merged: issue 764327
Owner:
Closed: Sep 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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webkit_layout_tests failing on chromium.webkit/WebKit Linux Trusty MSAN

Project Member Reported by dullweber@chromium.org, Sep 13 2017

Issue description

webkit_layout_tests failing on chromium.webkit/WebKit Linux Trusty MSAN

Builders failed on: 
- WebKit Linux Trusty MSAN: 
  https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Trusty%20MSAN


All webkit_layout_tests are failing with a fatal error in snapshot/snapshot.h
This is only happening on linux msan builds.

22:00:23.792 15850   # Fatal error in ../../v8/src/snapshot/snapshot.h, line 31
22:00:23.792 15850   # Check failed: IsSane().

https://chromium-swarm.appspot.com/task?id=38926c09a1766f10&refresh=10&show_raw=1
 
Cc: dullweber@chromium.org
Owner: jgruber@chromium.org
Status: Assigned (was: Available)
Hi Jakob, any ideas? The CLs on the responsible V8 roll look fine to me - https://chromium.googlesource.com/v8/v8/+log/36e9ca06..9e197dff
Cc: machenb...@chromium.org
Mergedinto: 764327
Status: Duplicate (was: Assigned)
It appears to be a problem with the build process not picking up a mksnapshot dependency. The build completes without generating a new snapshot_blob.bin, and on startup snapshot version verification fails.

A clean build (after `gn clean <build_dir>`) will fix this. See also  https://crbug.com/764327 .
Can we trigger a clean build on the bots?

Unfortunately we don't have a good repro for this yet (assuming a start from a fresh checkout). 
I started a clobbered build. Thanks you! 
After forcing a clobber build, the builder is still failing:

05:05:15.918839 Root: /b/c/b/linux_layout/src
05:05:15.918862 Isolate /b/c/b/linux_layout/src/out/Release/webkit_layout_tests_exparchive.isolate referenced 1067 deps
isolate: partitioning deps: lstat /b/c/b/linux_layout/src/out/Release/v8_context_snapshot.bin: no such file or directory
step returned non-zero exit code: 1

https://luci-logdog.appspot.com/v/?s=chromium%2Fbb%2Fchromium.webkit%2FWebKit_Linux_Trusty_MSAN%2F3104%2F%2B%2Frecipes%2Fsteps%2Fisolate_webkit_layout_tests_exparchive%2F0%2Fstdout
Cc: peria@chromium.org
#5 looks like a different issue related to v8_context_snapshot.bin, see https://crbug.com/760120.

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