Date: Thu, 11 Mar 1999 11:56:32 -0600 (CST) From: Greg Rowe <greg@uswest.net> To: freebsd-hackers@FreeBSD.ORG Subject: Re: SMP Woes Message-ID: <XFMail.990311115632.greg@uswest.net> In-Reply-To: <XFMail.990311114332.greg@uswest.net>
next in thread | previous in thread | raw e-mail | index | archive | help
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 <greg@uswest.net> US WEST - Internet Service Operations
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?XFMail.990311115632.greg>