if_sge related panics

[Nikolay Denev]

Hi,

Recently I started to experience a if_sge(4) related panic.
It happens almost every time I try to download a torrent file for example.
Copying of large files over NFS seem not to trigger it, but I haven't tested extensively.

Here is the panic message :

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address		= 0x8
fault code				= supervisor write data, page not present
instruction pointer		= 0x20:0xffffffff80230413
stack pointer				= 0x28:0xffffff80001e9280
frame pointer			= 0x28:0xffffff80001e9510
code segment			= base 0x0, limit 0xfffff, type 0x1b
						= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags			= interrupt enabled, resume, IOPL = 0
current process			= 12 (irq19: sge0)
trap number				= 12
panic: page fault
cpuid = 0
Uptime: 1d20h56m20s
Cannot dump. Device not defined or unavailable
Automatic reboot in 15 seconds - press a key on the console to abort
Sleeping thread (tid 100039, pid 12) owns a non-sleepable lock

My swap is on a zvol, so I don't have dump. I'll try to attach a disk on the eSATA port and dump there if needed.