On Thu, May 28, 2020 at 09:04:02AM -0500, Eric W. Biederman wrote: > I see some recent (within the last year) fixes to proc_sysctl.c in this > area. Do you have those? It looks like bridge up and down is stressing > this code. Either those most recent fixes are wrong, your kernel is > missing them or this needs some more investigation. Thanks for the review Eric. Boris, the elaborate deatils you provided would also be what would be needed for a commit log, specially since this is fixing a crash. If you confirm this is still present upstream by reproducing with a test case it would be wonderful. If you are familiar with what might be the issue, you can even construct your own kernel-code proof of concept test using lib/test_sysctl.c. We use the script tools/testing/selftests/sysctl/sysctl.sh to hammer on that. Luis