Re: Kernel panic from network traffic

[Ryota Ozaki <ozaki-r%netbsd.org@localhost>]

Hi,

I just fixed one bug related to refcnt. The fix may shut up the panic.
Could you try again with a latest kernel?

Thanks,
  ozaki-r

On Fri, Jul 24, 2015 at 3:38 PM, Ryota Ozaki <ozaki-r%netbsd.org@localhost> wrote:
> On Fri, Jul 24, 2015 at 3:12 PM, Ryota Ozaki <ozaki-r%netbsd.org@localhost> wrote:
>> Hi,
>>
>> It's probably due to my recent change to refcnt. I'm investigating
>> that defect.
>
> Hmm, I cannot reproduce it. Could you tell me the kernel config,
> network setups and apps running on the box?
>
> Thanks,
>   ozaki-r
>
>>
>> Thanks,
>>   ozaki-r
>>
>> On Fri, Jul 24, 2015 at 2:41 PM, Hisashi T Fujinaka <htodd%twofifty.com@localhost> wrote:
>>> Being a moron, I plugged ports of my switch together. The big surprise
>>> is two ports away is my -current box and it kept panicking.
>>>
>>> This is all I got so far.
>>>
>>> Jul 23 21:46:11 mara /netbsd: panic: kernel diagnostic assertion
>>> "rt->rt_refcnt > 0" failed: file "/usr/src/sys/net/route.c", line 418 Jul 23
>>> 21:46:11 mara /netbsd: cpu3: Begin traceback...
>>> Jul 23 21:46:11 mara /netbsd: vpanic() at netbsd:vpanic+0x13c
>>> Jul 23 21:46:11 mara /netbsd: kern_assert() at netbsd:kern_assert+0x4f
>>> Jul 23 21:46:11 mara /netbsd: rtfree() at netbsd:rtfree+0xf5
>>> Jul 23 21:46:11 mara /netbsd: rtcache_clear() at
>>> netbsd:rtcache_clear+0x41
>>> Jul 23 21:46:11 mara /netbsd: rtcache_free() at netbsd:rtcache_free+0xd
>>> Jul 23 21:46:11 mara /netbsd: in6_pcbdetach() at
>>> netbsd:in6_pcbdetach+0xcb
>>> Jul 23 21:46:11 mara /netbsd: udp6_detach_wrapper() at
>>> netbsd:udp6_detach_wrapper+0x3f
>>> Jul 23 21:46:11 mara /netbsd: soclose() at netbsd:soclose+0x63
>>> Jul 23 21:46:11 mara /netbsd: soo_close() at netbsd:soo_close+0x16
>>> Jul 23 21:46:11 mara /netbsd: closef() at netbsd:closef+0x54
>>> Jul 23 21:46:11 mara /netbsd: fd_close() at netbsd:fd_close+0x19f
>>> Jul 23 21:46:11 mara /netbsd: sys_close() at netbsd:sys_close+0x20
>>> Jul 23 21:46:11 mara /netbsd: syscall() at netbsd:syscall+0x9c
>>> Jul 23 21:46:11 mara /netbsd: --- syscall (number 6) ---
>>> Jul 23 21:46:11 mara /netbsd: 7f7ff5e5494a:
>>> Jul 23 21:46:11 mara /netbsd: cpu3: End traceback...
>>>
>>> --
>>> Hisashi T Fujinaka - htodd%twofifty.com@localhost
>>> BSEE + BSChem + BAEnglish + MSCS + $2.50 = coffee