Control: retitle -1 man-db: fails to exec groff tools under seccomp on 3.14.79-117 arm64 kernel
On Mon, Mar 05, 2018 at 12:11:48AM +0100, Erik Könnecke wrote: > After the upgrade of the man-db package, man stopped showing man > pages, only empty screen with the status line Thanks for your report. I have a few follow-up questions to try to narrow this down: * Where exactly did you get this kernel from? If you also know where I could find the source code for it, that would be helpful too. The only place I could find any mention of this kernel version on the internet was an odroid repository that seems to be lacking source code (so may well be a GPL violation ...). * Does setting MAN_DISABLE_SECCOMP=1 in the environment work around the bug? (I think it probably will, and I still want to investigate even if that's the case, but I need to make sure.) * The particular error here (EPERM from execve) is a strange symptom. Normally it only happens when trying to execute a set-id program under certain other conditions. Could you please show me the output of "ls -l /usr/bin/preconv"? * It's possible that this particular error is happening partly because you're running the program under strace: sometimes debugging tools affect the outcome. To make sure that I don't spend too much time getting confused by this possibility, could you please show me the full output of "PIPELINE_DEBUG=1 man --debug man" (not under strace)? I may have further questions after this, but the above should let me make a better guess as to what to ask next. Thanks, -- Colin Watson [cjwat...@debian.org]
