From owner-freebsd-hackers Thu Mar 11 9:56:58 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from psv.oss.uswest.net (psv.oss.uswest.net [204.147.85.6]) by hub.freebsd.org (Postfix) with ESMTP id 007B214C8D for ; Thu, 11 Mar 1999 09:56:49 -0800 (PST) (envelope-from greg@psv.oss.uswest.net) Received: (from greg@localhost) by psv.oss.uswest.net (8.9.2/8.9.2) id LAA58966 for freebsd-hackers@FreeBSD.ORG; Thu, 11 Mar 1999 11:56:32 -0600 (CST) (envelope-from greg) Message-ID: X-Mailer: XFMail 1.3 [p0] on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: Date: Thu, 11 Mar 1999 11:56:32 -0600 (CST) Reply-To: greg@uswest.net Organization: US WEST !NTERACT From: Greg Rowe To: freebsd-hackers@FreeBSD.ORG Subject: Re: SMP Woes Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG By the way, in my testing at 4.0 -current of 2 days ago, this problem appeared. It's probably been fixed by now, but in case no ones happened upon it, I repeatedly get the following when I type "sysctl -a": Fatal trap 12: page fault while in kernel mode mp_lock = 02000002; cpuid = 2; lapic.id = 01000000 fault virtual address = 0x0 fault code = supervisor read, page not present instruction pointer = 0x8:0xf01f1adc stack pointer = 0x10:0xfa9e5da0 frame pointer = 0x10:0xfa9e5e54 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 239 (sysctl) interrupt mask = <- SMP: XXX kernel: type 12 trap, code=0 Stopped at sysctl_vm_zone+0x90: repne scasb (%esi) db> trace sysctl_vm_zone(f025c7ec,0,0,fa9e5ea8,0) at sysctl_vm_zone+0x90 sysctl_root(0,fa9e5f30,2,fa9e5ea8,0) at sysctl_root+0x115 userland_sysctl(fa98d5a0,fa9e5f30,2,0,efbfcf7c) at userland_sysctl+0x11e __sysctl(fa98d5a0,fa9e5f94,efbfdbd8,2,efbfdbd8) at __sysctl+0x60 syscall(2f,2f,efbfdbd8,2,efbfcf40) at syscall+0x187 Xint0x80_syscall() at Xint0x80_syscall+0x4c db> On 11-Mar-99 Greg Rowe wrote: > Bingo !!! The system is a 1 gig of memory, 4 cpu's. Maxusers down to 64 > solved > the Fatal Trap problem. I'll try moving the number up in stages and see where > it breaks. I had been using 256 and a couple times 512 in testing. Thanks. > > Greg > Greg Rowe US WEST - Internet Service Operations To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message