Date: Thu, 14 May 2009 09:30:31 -0700 (PDT) From: Chris Timmons <cwt@networks.cwu.edu> To: John Baldwin <jhb@freebsd.org> Cc: stable@freebsd.org, freebsd-stable@freebsd.org, Martin Sugioarto <nakal@web.de> Subject: Re: kernel trap 12 with interrupts disabled [bge0 on 7.2R] Message-ID: <20090514093008.Q12558@n.cwu.edu> In-Reply-To: <20090514091410.H12558@n.cwu.edu> References: <1696198956@web.de> <200905140916.40594.jhb@freebsd.org> <20090514091410.H12558@n.cwu.edu>
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(kgdb) list *0xc07a4dac
0xc07a4dac is in devvn_refthread (/usr/src/sys/kern/kern_conf.c:209).
204 struct cdev_priv *cdp;
205
206 mtx_assert(&devmtx, MA_NOTOWNED);
207 csw = NULL;
208 dev_lock();
209 *devp = vp->v_rdev;
210 if (*devp != NULL) {
211 cdp = (*devp)->si_priv;
212 if ((cdp->cdp_flags & CDP_SCHED_DTR) == 0) {
213 csw = (*devp)->si_devsw;
On Thu, 14 May 2009, Chris Timmons wrote:
>
> Yesterday I updated a rock-solid machine (uptime hundreds of days) from
> 7-stable circa July, 2008, to the latest stable. I run Nessus on this
> machine, with about 60 concurrent scans. It pushes the load average up as
> high as 20 for short periods of time, but overall is reasonably efficient.
>
> I have never had the box become unresponsive, let alone crash, under any load
> scenario.
>
> This morning, I ran my first scan on 7.2-stable, with Nessus 4.0. It lasted
> about 30 seconds before:
>
>
> Fatal trap 12: page fault while in kernel mode
> cpuid = 2; apic id = 06
> fault virtual address = 0x1c
> fault code = supervisor read, page not present
> instruction pointer = 0x20:0xc07a4dac
> stack pointer = 0x28:0xee156ad4
> frame pointer = 0x28:0xee156ad8
> 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 = 5263 (nessusd)
> trap number = 12
> panic: page fault
> cpuid = 3
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