On Apr 10 04:41, Dave Korn wrote: > Corinna Vinschen wrote: > > On Apr 9 16:13, Eric Blake wrote: > >> The Autoconf testsuite is failing several tests on cygwin 1.7 that used to > >> pass > >> on cygwin 1.5. I've traced it to the fact that 1.7 is trying to be > >> smarter > >> about deleting in-use files and directories, but doesn't quite get things > >> right. > > > > Incredible but true. It was an alignment problem with a local buffer > > in the function which moves the directory to the bin when a sharing > > violation occurs. This seems to be a new problem with gcc-4. As long > > as I built Cygwin with gcc-3, I never had this problem. > > -vvvv? What alignment does the buffer require? What did it end up getting > with gcc-4?
Don't worry. It was my own little bug and gcc-4 just uncovered it. I created a temp buffer on the stack as an array of type BYTE, even though the data stored in the buffer requires a ULONG alignment. With gcc-3 this worked because the buffer was for some reason correcty aligned. gcc-4 apparently organizes the local vars differently so the buffer ended up on an unaligned address and the NT function returned status 0x8000002, STATUS_DATATYPE_MISALIGNMENT. Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
