l2arc_feed_thread page fault on r287138

[Bryan Drewery]

On 8/25/2015 1:20 PM, Andriy Gapon wrote:
> On 25/08/2015 23:18, Bryan Drewery wrote:
>>> Fatal trap 12: page fault while in kernel mode
>>> cpuid = 2; apic id = 02
>>> fault virtual address   = 0xc4
>>> fault code              = supervisor read data, page not present
>>> instruction pointer     = 0x20:0xffffffff80ce6c63
>>> stack pointer           = 0x28:0xfffffe3553e689d0
>>> frame pointer           = 0x28:0xfffffe3553e68a00
>>> 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         = 6 (l2arc_feed_thread)
>>> [ thread pid 6 tid 100172 ]
>>> Stopped at      uma_dbg_free+0x53:      movl    0xc4(%rdi),%esi
>>> db> bt
>>> Tracing pid 6 tid 100172 td 0xfffff8012551c9a0
>>> uma_dbg_free() at uma_dbg_free+0x53/frame 0xfffffe3553e68a00
>>> uma_zfree_arg() at uma_zfree_arg+0xaf/frame 0xfffffe3553e68a60
>>> l2arc_feed_thread() at l2arc_feed_thread+0xe0b/frame 0xfffffe3553e68bb0
>>> fork_exit() at fork_exit+0x84/frame 0xfffffe3553e68bf0
>>> fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe3553e68bf0
>>> --- trap 0, rip = 0, rsp = 0, rbp = 0 ---
>>> db>
>>
> 
> A little bit more debug info like line numbers, argument values, etc
> would be nice.
> 

Sure, once I can actually get on the system. It panics quite quickly.

-- 
Regards,
Bryan Drewery

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