[Bug 53835] cefclient.exe、chrome.exe、chromium.exe crash on CHECK_EQ(PAGE_READWRITE, old_protection);

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53835

--- Comment #7 from Brendan Shanks  ---
In a nutshell, v8 is requiring a PAGE_WRITECOPY page (from the .data section)
to flip to PAGE_READWRITE after it's been written to.

Wine doesn't implement this, but there's a staging patchset 'ntdll-WRITECOPY'
which does. With those patches (and enabling them with STAGING_WRITECOPY=1),
I'm able to run my own compiled build of v8. CEF doesn't launch though, the
patchset still seems to have some bugs. Since it works through signals, I fear
it would hurt performance even if it was in a state to be upstreamed.

I'm going to try changing the check in upstream V8, we'll see if they accept
it.