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Hermes SMTP Server) with ESMTPA ID 70ee2b3a8508f3fb00c68955646ed6f8; Wed, 22 Nov 2023 05:44:01 +0000 (UTC) From: Mark Millard Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3774.200.91.1.1\)) Subject: "options MAXMEMDOM=2" vs. amd64 DBG kernel booting: 3000+ "kernel: Process (pid 1) got signal 5" notices during booting Message-Id: <6F60DA66-1333-4CF0-B433-F0CE56F5D301@yahoo.com> Date: Tue, 21 Nov 2023 21:43:50 -0800 To: Current FreeBSD X-Mailer: Apple Mail (2.3774.200.91.1.1) References: <6F60DA66-1333-4CF0-B433-F0CE56F5D301.ref@yahoo.com> X-Spamd-Result: default: False [-3.50 / 15.00]; NEURAL_HAM_SHORT(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; DMARC_POLICY_ALLOW(-0.50)[yahoo.com,reject]; MV_CASE(0.50)[]; R_DKIM_ALLOW(-0.20)[yahoo.com:s=s2048]; R_SPF_ALLOW(-0.20)[+ptr:yahoo.com]; MIME_GOOD(-0.10)[text/plain]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[98.137.69.32:from]; RCPT_COUNT_ONE(0.00)[1]; MLMMJ_DEST(0.00)[freebsd-current@freebsd.org]; ARC_NA(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; RWL_MAILSPIKE_POSSIBLE(0.00)[98.137.69.32:from]; DKIM_TRACE(0.00)[yahoo.com:+]; TO_DN_ALL(0.00)[]; FREEMAIL_FROM(0.00)[yahoo.com]; DWL_DNSWL_NONE(0.00)[yahoo.com:dkim]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:36647, ipnet:98.137.64.0/20, country:US]; FREEMAIL_ENVFROM(0.00)[yahoo.com]; RCVD_COUNT_TWO(0.00)[2] X-Rspamd-Queue-Id: 4SZqtZ6W3wz4NWb X-Spamd-Bar: --- While my kernel/world build procedures build both DBG and NODBG kernels and worlds, I normally run the NODBG kernel and world, using DBG only when I need to for problem investigation. I recently had reason to use the DBG kernel and found it got the oddity of 3000+ instances of "kernel: Process (pid 1) got signal 5" during booting, as reported in /var/log/messages . An example is: . . . Nov 20 23:13:09 7950X3D-UFS shutdown[20174]: reboot by root:=20 Nov 20 23:13:09 7950X3D-UFS syslogd: exiting on signal 15 Nov 20 23:14:21 7950X3D-UFS syslogd: kernel boot file is = /boot/kernel/kernel Nov 20 23:14:21 7950X3D-UFS kernel: got signal 5 Nov 20 23:14:21 7950X3D-UFS kernel: Process (pid 1) got signal 5 Nov 20 23:14:21 7950X3D-UFS syslogd: last message repeated 3133 times Nov 20 23:14:21 7950X3D-UFS kernel: intsmb0: = at device 20.0 on pci0 . . . This stopped when I commented out the: options MAXMEMDOM=3D2 that I've had historically and built, installed, and booted the resulting DBG kernel. I'll note that I never had the messages for the NODDBG kernel, despite it also having that line. For reference: # uname -apKU FreeBSD 7950X3D-UFS 15.0-CURRENT FreeBSD 15.0-CURRENT #2 = main-n266130-d521abdff236-dirty: Tue Nov 21 21:03:11 PST 2023 = root@7950X3D-UFS:/usr/obj/BUILDs/main-amd64-dbg-clang/usr/main-src/amd64.a= md64/sys/GENERIC-DBG amd64 amd64 1500002 1500002 # ~/fbsd-based-on-what-commit.sh -C /usr/main-src/ d521abdff236 (HEAD -> main, freebsd/main, freebsd/HEAD) Update ASLR = stack sysctl description in security.7 and mitigations.7 Author: Ed Maste Commit: Ed Maste CommitDate: 2023-10-24 22:29:25 +0000 branch: main merge-base: d521abdff2367a5c72a773a815fc3d99403274f5 merge-base: CommitDate: 2023-10-24 22:29:25 +0000 n266130 (--first-parent --count for merge-base) =3D=3D=3D Mark Millard marklmi at yahoo.com