8.3 -> 9.1 results in often crashes.

[Lawrence Stewart]

On 12/11/12 00:27, Pawel Tyll wrote:
> Here's more info, including backtrace:
> 
> Fatal trap 12: page fault while in kernel mode
> cpuid = 3; apic id = 03
> fault virtual address   = 0x0
> fault code              = supervisor read data, page not present
> instruction pointer     = 0x20:0xffffffff80956c73
> stack pointer           = 0x28:0xffffff82ddbe3750
> frame pointer           = 0x28:0xffffff82ddbe3760
> 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 (irq275: em1:rx 0)
> trap number             = 12
> panic: page fault
> cpuid = 3
> KDB: stack backtrace:
> #0 0xffffffff80929bb6 at kdb_backtrace+0x66
> #1 0xffffffff808f3b1e at panic+0x1ce
> #2 0xffffffff80bfde10 at trap_fatal+0x290
> #3 0xffffffff80bfe148 at trap_pfault+0x1e8
> #4 0xffffffff80bfe74e at trap+0x3be
> #5 0xffffffff80be7f7f at calltrap+0x8
> #6 0xffffffff80a7c1af at tcp_input+0x65f
> #7 0xffffffff80a0db0d at ip_input+0xdd
> #8 0xffffffff809b7288 at netisr_dispatch_src+0x218
> #9 0xffffffff809ace1d at ether_demux+0x14d
> #10 0xffffffff809ad0f4 at ether_nh_input+0x1f4
> #11 0xffffffff809b7288 at netisr_dispatch_src+0x218
> #12 0xffffffff809acd3f at ether_demux+0x6f
> #13 0xffffffff809ad0f4 at ether_nh_input+0x1f4
> #14 0xffffffff809b7288 at netisr_dispatch_src+0x218
> #15 0xffffffff804b1038 at em_rxeof+0x1c8
> #16 0xffffffff804b1414 at em_msix_rx+0x24
> #17 0xffffffff808c73bd at intr_event_execute_handlers+0xfd

Assuming the 9.1 kernel which is reliably crashing is at
/boot/kernel/kernel (change the following instructions to suit if it is
elsewhere), can you please run the following and send us the output:

gdb /boot/kernel/kernel
(gdb) l * tcp_input+0x65f

Cheers,
Lawrence