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Bug #7119

closed

Changing LAGG attributes results in a panic/crash

Added by Jim Pingle over 7 years ago. Updated over 6 years ago.

Status:
Resolved
Priority:
High
Assignee:
Luiz Souza
Category:
Interfaces
Target version:
2.4.0
Start date:
01/13/2017
Due date:
% Done:

100%

Estimated time:
Plus Target Version:
Release Notes:
Affected Version:
2.4
Affected Architecture:
amd64

Description

On 2.4, when changing attributes of an assigned LAGG such as the mode or membership, the firewall panics and reboots.

Tested on an 8860 and 4860, so it may be specific to igb. In this case, the lagg instance contained igb4,igb5 in LACP mode, and I attempted to change the mode to Failover. bjaffe encountered the same crash when changing member interfaces.

Fatal trap 12: page fault while in kernel mode
cpuid = 2; apic id = 04
fault virtual address    = 0x0
fault code        = supervisor read data, page not present
instruction pointer    = 0x20:0xffffffff80e190c0
stack pointer            = 0x28:0xfffffe022c32fa30
frame pointer            = 0x28:0xfffffe022c32fa50
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 (swi6: task queue)

db:0:kdb.enter.default>  show pcpu
cpuid        = 2
dynamic pcpu = 0xfffffe02a9c86f00
curthread    = 0xfffff80006250500: pid 12 "swi6: task queue" 
curpcb       = 0xfffffe022c32fcc0
fpcurthread  = none
idlethread   = 0xfffff80006233500: tid 100005 "idle: cpu2" 
curpmap      = 0xffffffff829e5600
tssp         = 0xffffffff82a1dee0
commontssp   = 0xffffffff82a1dee0
rsp0         = 0xfffffe022c32fcc0
gs32p        = 0xffffffff82a24738
ldt          = 0xffffffff82a24778
tss          = 0xffffffff82a24768
db:0:kdb.enter.default>  bt
Tracing pid 12 tid 100023 td 0xfffff80006250500
arp_iflladdr() at arp_iflladdr+0x10/frame 0xfffffe022c32fa50
lagg_port_setlladdr() at lagg_port_setlladdr+0x14e/frame 0xfffffe022c32faa0
taskqueue_run_locked() at taskqueue_run_locked+0x14a/frame 0xfffffe022c32fb00
taskqueue_run() at taskqueue_run+0xbf/frame 0xfffffe022c32fb20
intr_event_execute_handlers() at intr_event_execute_handlers+0x20f/frame 0xfffffe022c32fb60
ithread_loop() at ithread_loop+0xc6/frame 0xfffffe022c32fbb0
fork_exit() at fork_exit+0x85/frame 0xfffffe022c32fbf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe022c32fbf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
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