"Wolfram R. Jarisch" <wolfram@xxxxxxxxxxxx> writes: > When compiling code with a total array size about equal (or slightly > larger) to the machine RAM the system freezes (here it is an x86_64 with > 24GB running RHEL 6). Redhat identified this as a problem with the > computation on the sha1sum on gcc 4.4.4 (case# 00387722). For some > reason the compiler tries to "work though the array" in its whole size > to compute a sha1sum. A Red Hat case number doesn't tell us anything useful, so I'm not sure exactly what the problem is. As far as I know, the compiler does not compute any SHA1 checksum. The linker does compute such a checksum if you pass the --build-id option. The linker is part of the GNU binutils; it is not part of the compiler. Linker bug reports should go to binutils@xxxxxxxxxxxxxx; see http://sourceware.org/binutils/ . That said, I think the linker just computes the checksum over the section contents of the output file. It has to generate that data anyhow, so I don't know why computing the checksum would make such a big difference in linker performance. Ian
