reassign 501960 flex thanks It is clear that the aforementioned changeset is the change that caused flex to begin failing. But, I don't see any evidence that the kernel change is faulty.
PAGE_SIZE on ia64 kernels is larger than most architectures - 16K is what most distributions (including Debian) use. An effect of the above changeset, as verified by strace, is that the read() and write() system calls issued by flex on a pipe will use this bigger size. fread() appears to be properly hiding the actual read size and is returning 8192 byte buffers to flex upon request. I verified by this by instrumenting YY_INPUT to compare the fread data with the original input file. Its probably useful to note that the corruption happening here is that the last 382 lines of the input file is being prefixed to the output file. The only differences in the remainder of the file are the #line numbers. I've also found that bumping YY_READ_BUF_SIZE up to 16384 seems to workaround the problem - but that may just be putting it back into hiding. My understanding of flex's codebase is nearly non-existant, but filter.c:filter_apply_chain() looks like a reasonable place to suspect an issue. -- dann frazier -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
