From owner-svn-src-all@freebsd.org Thu May 21 13:46:31 2020 Return-Path: Delivered-To: svn-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 701F42D8A58; Thu, 21 May 2020 13:46:31 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49SW9z2LlKz3Wnv; Thu, 21 May 2020 13:46:31 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4BBF4E1FD; Thu, 21 May 2020 13:46:31 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 04LDkVOj007202; Thu, 21 May 2020 13:46:31 GMT (envelope-from avg@FreeBSD.org) Received: (from avg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 04LDkVuV007201; Thu, 21 May 2020 13:46:31 GMT (envelope-from avg@FreeBSD.org) Message-Id: <202005211346.04LDkVuV007201@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: avg set sender to avg@FreeBSD.org using -f From: Andriy Gapon Date: Thu, 21 May 2020 13:46:31 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r361330 - head/lib/libprocstat X-SVN-Group: head X-SVN-Commit-Author: avg X-SVN-Commit-Paths: head/lib/libprocstat X-SVN-Commit-Revision: 361330 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 May 2020 13:46:31 -0000 Author: avg Date: Thu May 21 13:46:30 2020 New Revision: 361330 URL: https://svnweb.freebsd.org/changeset/base/361330 Log: libprocstat: fix reading of file descriptor table via kvm This seems to have been broken since r247602 (from year 2013!). Can be easily tested with fstat -N /boot/kernel/kernel -M /var/crash/vmcore.last MFC after: 1 week Sponsored by: Panzura Modified: head/lib/libprocstat/libprocstat.c Modified: head/lib/libprocstat/libprocstat.c ============================================================================== --- head/lib/libprocstat/libprocstat.c Thu May 21 12:43:34 2020 (r361329) +++ head/lib/libprocstat/libprocstat.c Thu May 21 13:46:30 2020 (r361330) @@ -467,7 +467,7 @@ procstat_getfiles_kvm(struct procstat *procstat, struc vm_map_entry_t entryp; vm_object_t objp; struct vnode *vp; - struct file **ofiles; + struct filedescent *ofiles; struct filestat *entry; struct filestat_list *head; kvm_t *kd; @@ -554,25 +554,25 @@ procstat_getfiles_kvm(struct procstat *procstat, struc } nfiles = filed.fd_lastfile + 1; - ofiles = malloc(nfiles * sizeof(struct file *)); + ofiles = malloc(nfiles * sizeof(struct filedescent)); if (ofiles == NULL) { - warn("malloc(%zu)", nfiles * sizeof(struct file *)); + warn("malloc(%zu)", nfiles * sizeof(struct filedescent)); goto do_mmapped; } if (!kvm_read_all(kd, (unsigned long)filed.fd_ofiles, ofiles, - nfiles * sizeof(struct file *))) { + nfiles * sizeof(struct filedescent))) { warnx("cannot read file structures at %p", (void *)filed.fd_ofiles); free(ofiles); goto do_mmapped; } for (i = 0; i <= filed.fd_lastfile; i++) { - if (ofiles[i] == NULL) + if (ofiles[i].fde_file == NULL) continue; - if (!kvm_read_all(kd, (unsigned long)ofiles[i], &file, + if (!kvm_read_all(kd, (unsigned long)ofiles[i].fde_file, &file, sizeof(struct file))) { warnx("can't read file %d at %p", i, - (void *)ofiles[i]); + (void *)ofiles[i].fde_file); continue; } switch (file.f_type) {