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Fri, 11 Jun 2021 08:25:39 +0000 Received: by kubenode508.mail-prod1.omega.bf1.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID 3ae65d6f1155c054820f55debca0c9e4; Fri, 11 Jun 2021 08:25:34 +0000 (UTC) Content-Type: text/plain; charset=us-ascii List-Id: Porting FreeBSD to ARM processors List-Archive: https://lists.freebsd.org/archives/freebsd-arm List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-arm@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.100.0.2.22\)) Subject: Re: Easily reproducible stable/13 kernel crash In-Reply-To: <87wnr0vq79.wl-herbert@gojira.at> Date: Fri, 11 Jun 2021 01:25:31 -0700 Cc: freebsd-arm@freebsd.org Content-Transfer-Encoding: 7bit Message-Id: <5675A430-06C2-4424-B13A-4327F37F82FD@yahoo.com> References: <63c37775-f1f6-def7-1ca2-4ac0460c46e2@shrew.net> <87y2bhuehz.wl-herbert@gojira.at> <87wnr0vq79.wl-herbert@gojira.at> To: "Herbert J. Skuhra" X-Mailer: Apple Mail (2.3654.100.0.2.22) X-Rspamd-Queue-Id: 4G1Ynf1bnqz4ScM X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] Reply-To: marklmi@yahoo.com From: Mark Millard via freebsd-arm X-Original-From: Mark Millard X-ThisMailContainsUnwantedMimeParts: N On 2021-Jun-11, at 00:02, Herbert J. Skuhra wrote: > On Fri, 11 Jun 2021 08:00:56 +0200, "Herbert J. Skuhra" wrote: >> >> On Fri, 11 Jun 2021 07:42:27 +0200, Matthew Grooms wrote: >>> >>> Hey all, >>> >>> If I build an up-to-date stable/13 arm64 kernel and type sysctl -a on >>> a rpi4 system, it reboots every time. I've blown away the source and >>> object tree multiple times and still get the same result. >>> >>> FreeBSD generic 13.0-STABLE FreeBSD 13.0-STABLE #1 >>> stable/13-n245932-04c4bd7f7b5: Fri Jun 11 00:09:11 CDT 2021 >>> mgrooms@x.x.x:/var/rpi4/build/usr/src/arm64.aarch64/sys/GENERIC arm64 >>> >>> Has anyone else been testing stable builds recently? I'll try to build >>> a debug kernel and see if I can dig up more info. >> >> I can confirm this issue: Rasperry Pi 2 (armv7), 3 and 4 (both aarch64). >> When booting kernel.old (from May 17th; e0f2b8aaf1ed) 'sysctl -a' >> doesn't crash the system. > > The kernel from the May 27th snapshot (stable/13-n245691-024a9aa7010) > is OK, the one from June 3rd (13-n245852-4775325dd66) isn't. I tried the stable/13-n245765-bec0d2c9c841 based bectl environment that I happen to have in place on a RPi4B: # sysctl net.inet.tcp.lro net.inet.tcp.lro.sackwakeups: 0 net.inet.tcp.lro.lockcnt: 0 net.inet.tcp.lro.single: 0 net.inet.tcp.lro.compressed: 0 net.inet.tcp.lro.wokeup: 0 net.inet.tcp.lro.fullqueue: 0 net.inet.tcp.lro.entries: 8 net.inet.tcp.lro.hold_lock: 0 # sysctl -a > /dev/null # No crash. That might narrow the range a bit unless some other context-specific issue is involved. === Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar)