gmirror panic @ RELENG_5/amd64

[Dmitry Morozovsky]

Dear colleagues,

after several hangs once our router drops to debugger with the following:

any hints?

Sincerely,
D.Marck                                     [DM5020, MCK-RIPE, DM3-RIPN]
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*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck at rinet.ru ***
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Fatal trap 9: general protection fault while in kernel mode
instruction pointer     = 0x8:0xffffffff80584578
stack pointer           = 0x10:0xffffffffa4747bb0
frame pointer           = 0x10:0xffffff00009f4c00
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         = 48 (g_mirror m0f)
[thread pid 48 tid 100035 ]
Stopped at      g_mirror_event_remove+0x38:     decl    %eax
db> 
db> trace
Tracing pid 48 tid 100035 td 0xffffff001ec18c80
g_mirror_event_remove() at g_mirror_event_remove+0x38
db> panic

[here it hangs solid]