O#n 11/07/07 14:10, Andi Kleen wrote: > Stefano Rivoir <[email protected]> writes: >> Linus Torvalds wrote: >>> On Tue, 10 Jul 2007, Stefano Rivoir wrote: >> Ok, the guilty bit is gcc: in my box, compiling kernel with gcc 4.2.x >> (which is installed on my debian/sid) turns into a hang (in init, >> seemingly, maybe not even in kernel itself), while gcc-4.1 is allright. > > The standard way to track this down is to compile different directories > of the kernel with different gcc versions. Then when you find the directory > go down to files. Then you could eventually go down to functions, although > that tends to involve quite some editing work. But already knowing > the file would be useful. I have done this. The file is arch/x86_64/kernel/signal.c: if I compile this with gcc 20070627 then everything works, if I compile it with gcc 20070707 then udevsettle hangs. This is independent of the gcc version used to compile the rest of the kernel. (The dates refer to versions of the Debian gcc-4.2 package and its dependencies.) -- Martin Orr
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