Re: fxp0 and vlan panic

Randy Bush wrote:
> > Just for the record, and for people not reading CVS commit logs, I
> > committed a fix for this a few days ago and I will make sure to MFC
> > it in time for 5.4-RELEASE.
> 
> might this give me some help on occasional but repeated fxp
> crashes under load?
> 
> Fatal trap 12: page fault while in kernel mode
> fault virtual address   = 0x80808517
> fault code              = supervisor read, page not present
> instruction pointer     = 0x8:0xc047d2d0
> stack pointer           = 0x10:0xd3f78c88
> frame pointer           = 0x10:0xd3f78cac
> 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         = 15 (irq5: fxp0)
> [thread pid 15 tid 100008 ]
> Stopped at      fxp_intr_body+0xd0:     cmpw    $0,0(%esi)
> db> trace
> Tracing pid 15 tid 100008 td 0xc155fb80
> fxp_intr_body(c161a000,c161a000,40,ffffffff,c0630cb6) at fxp_intr_body+0xd0
> fxp_intr(c161a000,0,0,0,0) at fxp_intr+0x141
> ithread_loop(c1551a00,d3f78d48,0,0,0) at ithread_loop+0x1a8
> fork_exit(c04da530,c1551a00,d3f78d48) at fork_exit+0x7f
> fork_trampoline() at fork_trampoline+0x8
> --- trap 0x1, eip = 0, esp = 0xd3f78d7c, ebp = 0 ---

It probably won't help with that.  Could I have you to get a system core
for this crash and show me precisely where this happens with gdb -k ?

Cheers,
Maxime