From owner-dev-commits-src-all@freebsd.org Sat May 22 19:26:04 2021 Return-Path: Delivered-To: dev-commits-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 1D2846359F1; Sat, 22 May 2021 19:26:04 +0000 (UTC) (envelope-from git@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 "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4FnYNr0JSNz3H4H; Sat, 22 May 2021 19:26:04 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (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 did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id E28B31DAA; Sat, 22 May 2021 19:26:03 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 14MJQ3uc087006; Sat, 22 May 2021 19:26:03 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 14MJQ3bW087005; Sat, 22 May 2021 19:26:03 GMT (envelope-from git) Date: Sat, 22 May 2021 19:26:03 GMT Message-Id: <202105221926.14MJQ3bW087005@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Robert Wing Subject: git: 20123b25ee51 - main - fsck_ffs(8): fix divide by zero when debug messages are enabled MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: rew X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 20123b25ee51e9b122676a30d45c21a506bf1461 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 22 May 2021 19:26:04 -0000 The branch main has been updated by rew: URL: https://cgit.FreeBSD.org/src/commit/?id=20123b25ee51e9b122676a30d45c21a506bf1461 commit 20123b25ee51e9b122676a30d45c21a506bf1461 Author: Robert Wing AuthorDate: 2021-05-20 20:53:52 +0000 Commit: Robert Wing CommitDate: 2021-05-22 19:03:36 +0000 fsck_ffs(8): fix divide by zero when debug messages are enabled Only print buffer cache debug message when a cache lookup has been done. When running `fsck_ffs -d` on a gjournal'ed filesystem, it's possible that totalreads is greater than zero when no cache lookup has been done - causing a divide by zero. This commit fixes the following error: Floating point exception (core dumped) Reviewed by: mckusick Differential Revision: https://reviews.freebsd.org/D30370 --- sbin/fsck_ffs/fsutil.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sbin/fsck_ffs/fsutil.c b/sbin/fsck_ffs/fsutil.c index b13ba4c54bde..db22ee5b20cf 100644 --- a/sbin/fsck_ffs/fsutil.c +++ b/sbin/fsck_ffs/fsutil.c @@ -576,7 +576,7 @@ ckfini(int markclean) rerun = 1; } } - if (debug && totalreads > 0) + if (debug && cachelookups > 0) printf("cache with %d buffers missed %d of %d (%d%%)\n", numbufs, cachereads, cachelookups, (int)(cachereads * 100 / cachelookups));