On Fri, Nov 19, 2021 at 08:07:36AM -0800, Kyle Huey wrote: > On Thu, Nov 18, 2021 at 8:12 AM Eric W. Biederman <ebiederm@xxxxxxxxxxxx> wrote: > > Kyle thank you for your explanation of what breaks. For future kernels > > I do need to do some work in this area and I will copy on the patches > > going forward. In particular I strongly suspect that changing the > > sigaction and blocked state of the signal for these synchronous signals > > is the wrong thing to do, especially if the process is not killed. I > > want to find another solution that does not break things but that also > > does not change the program state behind the programs back so things > > work differently under the debugger. > > The heads up in the future is appreciated, thanks. Yeah, I wonder if we could add you as a Reviewer in the MAINTAINERS file for ptrace/signal stuff? Then anyone using scripts/get_maintainers.pl would have a CC to you added. Also, are there more instructions about running the rr tests? When the execve refactoring was happening, I tried it[1], but the results were unclear (there seemed to be a lot of warnings and it made me think I'd done something wrong on my end). -Kees [1] https://github.com/rr-debugger/rr/wiki/Building-And-Installing#tests -- Kees Cook