https://bugs.winehq.org/show_bug.cgi?id=37345 Bug ID: 37345 Summary: Wine does not flush stdout if stdout is redirected (Regression!) Product: Wine Version: 1.7.27 Hardware: x86 OS: Linux Status: UNCONFIRMED Severity: major Priority: P2 Component: msvcrt Assignee: wine-bugs(a)winehq.org Reporter: anduchs(a)gmail.com When calling wine from another process after redirecting stdout to a pipe, wine does not flush the stdout-buffer correctly anymore. This is a regression. Attached is a usecase. To test do: i686-w64-mingw32-gcc helloworld.c gcc callwine.c ./a.out What will happen is: - on a buggy wine it will take 10 seconds and then all of the stdout-buffer is flushed on the exit of the child. (imagine the child would run longer than the 10 seconds) - on a good wine we will see some stdout-content then 10 second sleep and then the rest of the content. This is a regesstion that happened between 1.7.4 and 1.7.5. The bisect identified commit afec0b00bd6250fe21e8deccbc8116a4aca6a7a4 "msvcrt: Make the first call to fwrite buffered." as problem. The attached patch is a revert of this commit ported forward to 1.7.27. Unfortunately I don't quite grasp the logics of the offending commit. If somebody who knows that patch could help, I'd highly appreciate it. Cheers, Andreas P.S. This could be related to bug 32791. -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.