From owner-freebsd-stable Thu Feb 28 15:46:37 2002 Delivered-To: freebsd-stable@freebsd.org Received: from motgate.mot.com (motgate.mot.com [129.188.136.100]) by hub.freebsd.org (Postfix) with ESMTP id 29C1937B41A for ; Thu, 28 Feb 2002 15:46:32 -0800 (PST) Received: [from pobox.mot.com (pobox.mot.com [129.188.137.100]) by motgate.mot.com (motgate 2.1) with ESMTP id QAA08866 for ; Thu, 28 Feb 2002 16:46:31 -0700 (MST)] Received: [from latour.rsch.comm.mot.com (latour.rsch.comm.mot.com [145.1.80.116]) by pobox.mot.com (MOT-pobox 2.0) with ESMTP id QAA10656 for ; Thu, 28 Feb 2002 16:46:30 -0700 (MST)] Received: (from rittle@localhost) by latour.rsch.comm.mot.com (8.11.6/8.11.6) id g1SNkU100976; Thu, 28 Feb 2002 17:46:30 -0600 (CST) (envelope-from rittle) Date: Thu, 28 Feb 2002 17:46:30 -0600 (CST) From: Loren James Rittle Message-Id: <200202282346.g1SNkU100976@latour.rsch.comm.mot.com> To: stable@freebsd.org Subject: 4.4-STABLE (built 10/25) -> 4.5-STABLE (built and rebuilt during last week) Cc: rittle@latour.rsch.comm.mot.com Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Does this problem ring a bell with anyone: I have a stripped GENERIC kernel that worked great on a 4.4-STABLE machine (up without reboot since last upgraded); ASUS P2B, P2, 384MB. Only tuning was setting maxusers to 128. Only addition was pcm device. I upgarded to 4.5-STABLE this week. I tracked the diff in GENERIC between those dates. In particular: added UFS_DIRHASH; set maxusers to 0 and removed the number from gif line. Things seemed stable and I then upped the memory to 512MB since a retired machine had the exact same ECC DIMMS as I was already using. I now see a hard crash (I have rebuilt with INVARIANTS and DIAGNOSTIC and now DDB without any report or panic nor can I enter DDB once hard crash hits). I see this hard crash with X running (no further screen changes or input possible), without X multiuser (no longer change vttys, screen changes or input), in single-user mode. Rebuilding world to local disk is enough to see the problem. I have also changed the new ECC DIMM I added with another from the same retired machine (in both cases, transfered right from motherboard to motherboard with proper anti-static protection). After that and rereading the last ~1200 messages on stable, I upped maxusers to 512. Same problem seen. Based upon advice given to others on list, I was able to get output of vmstat -m generated within 5 seconds of crash. The free pool contained over 2MB at that point. Any advice? I am about to remove the memory and/or downgrade back to 4.4 since this is my desktop machine. Did I miss a step before I go that route? Thanks, Loren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message