On Wed, 2022-11-09 at 15:43 +0800, Xi Ruoyao wrote: > Hi, > > This is a "help wanted" message. When I run GCC regression test on > loongarch64-linux-gnu, expect occasionally crashes with a segment fault. > The stack backtrace is like:
/* snip */ > The crashes happen on both my own LoongArch board and > gcc401.fsffrance.org. So I don't think it was an "only me" problem. > > The segment fault is not deterministic. A Expect command like > > cd /path/to/gcc/build/gcc > expect -- /usr/share/dejagnu/runtest.exp --tool gfortran > dg.exp=bind-c-contiguous-1.f90 > > sometimes succeeds, sometimes immediately segfaults, sometimes prints > several lines of strange error message and then exits abnormally. > > Usually I don't like to send "help wanted" messages, but this time I > have no idea how to fix (or even triage) the problem. I don't even know > which component (Tcl? Expect? GCC? Glibc? Kernel?) I should blame. So > it seems I really need some help now... I'm now 99% sure this is a kernel issue: https://lore.kernel.org/loongarch/20221117042532.4064448-1-chenhua...@loongson.cn/ -- Xi Ruoyao <xry...@xry111.site> School of Aerospace Science and Technology, Xidian University
