Ralf Wrote: > Further no known libc implementation making use of sa_restorer. I don't know if this is relevant, but Linus recently tried changing the sa_restorer behaviour in the linux-2.5 kernel and later had to back out the change. The following lines are from recent changelogs: http://www.uwsg.iu.edu/hypermail/linux/kernel/0301.1/0344.html Linux-2.5.55: Move x86 signal handler return stub to the vsyscall page, and stop honoring the SA_RESTORER information. http://www.uwsg.iu.edu/hypermail/linux/kernel/0301.1/1884.html Linux-2.5.57: Re-instate the SA_RESTORER functionality, since it seems that some programs still depend on it and in fact do install a different signal restorer than the standard kernel version. Jon
