kernel trap 12 with interrupts disabled [bge0 on 7.2R]

[John Baldwin]

On Thursday 14 May 2009 12:30:31 pm Chris Timmons wrote:
> 
> (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;

Can you get a stack trace?  Your panic is quite different then the original 
one.
 
> 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
> 
> 



-- 
John Baldwin