(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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