Hello Herbet, On Fri, Jan 10, 2025 at 05:27:49PM +0800, Herbert Xu wrote: > Sorry, I think it was my addition that broke things. The condition > for checking whether an entry is inserted is incorrect, thus resulting > in an underflow of the number of entries after entry removal. That is what I though originally as well, but I was not convinced. While reading the code, I understood that, if new_tbl is not NULL, then PTR_ERR(data) will be -ENOENT. In which case `net_tbl` will not be NULL, and PTR_ERR(data) != -ENOENT? Thanks for solving it. > Please test this patch: I don't have an easy reproducer yet, but, I will get this patch in ~50 hosts and see if any of them misbehave during the weekend. Misbehaving in my case is strongly associate with messages like the following being printed: kobject_uevent: unable to create netlink socket! Thanks --breno
