CreateMutex failed error on chromium windows PGO build

[Pan Jie]

error msg:
IrtClientInitShared: CreateMutex failed

build environment: vs2017 community edition + win10

gn args is:

target_cpu = "x64"
is_debug = false
is_component_build = false
is_official_build = true
chrome_pgo_phase = 1
treat_warnings_as_errors = false
is_clang = false

google_api_key= xxx
google_default_client_id=xxx
google_default_client_secret=xxx

[bruce...@chromium.org]

PGO builds are a three stage process - build chromium with chrome_pgo_phase=1, run profiles, then build chromium again with chrome_pgo_phase=2. This is the sort of thing that should normally only be done on a build machine when you are ready to ship a production build. I don't know if PGO is supported with VS 2017 community edition. That is probably the root cause of the failure.

So, don't set chrome_pgo_phase. Also be aware that official builds - especially if using VC++ - can take a really long time to build.

If the problem persists then you will need to debug Chromium, using windbg or VS.

What are you trying to do?

[Daniel Bratell]

This particular error you see if you try to run an instrumented binary inside a sandbox. There might be other reasons as well, but that is my first guess and adding --no-sandbox should allow you to get further.

/Daniel

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