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Date:      Tue, 12 Jul 2016 12:03:10 +0300
From:      Michael Zhilin <mizhka@gmail.com>
To:        Hans Petter Selasky <hps@selasky.org>
Cc:        Peter Holm <peter@holm.cc>, freebsd-current@freebsd.org
Subject:   Re: panic: bogus refcnt 0 on lle 0xfffff80121a13a00
Message-ID:  <CAF19XBKBQALTeZhHEAn3e-C1L=KF5fsRwvRD6RVfZko%2BmzuAxw@mail.gmail.com>
In-Reply-To: <29dd874b-075f-8ba7-4e0d-144ebdb8b283@selasky.org>
References:  <20160712083746.GA78547@x2.osted.lan> <29dd874b-075f-8ba7-4e0d-144ebdb8b283@selasky.org>

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Hi,

I have same issue everyday on my laptop. It happens randomly and I suppose
due to network issues.
I want to test D4507. I've tried to apply patch, it's successful except one
chunk:

|Index: sys/netinet6/nd6.c
|===================================================================
|--- sys/netinet6/nd6.c
|+++ sys/netinet6/nd6.c
--------------------------
Patching file sys/netinet6/nd6.c using Plan A...
Hunk #1 succeeded at 520 (offset 31 lines).
Hunk #2 failed at 739.
Hunk #3 succeeded at 1357 with fuzz 1 (offset 19 lines).
Hunk #4 succeeded at 1446 with fuzz 2 (offset 32 lines).
1 out of 4 hunks failed--saving rejects to sys/netinet6/nd6.c.rej
done

Hans,
Could you please check patch?

Thanks!


On Tue, Jul 12, 2016 at 11:55 AM, Hans Petter Selasky <hps@selasky.org>
wrote:

> On 07/12/16 10:37, Peter Holm wrote:
>
>> Exiting from single-user mode triggers this:
>>
>> ifa_maintain_loopback_route: deletion failed for interface igb0: 3
>> panic: bogus refcnt 0 on lle 0xfffff80121a13a00
>> cpuid = 9
>> KDB: stack backtrace:
>> db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame
>> 0xfffffe1048c63470
>> vpanic() at vpanic+0x182/frame 0xfffffe1048c634f0
>> kassert_panic() at kassert_panic+0x126/frame 0xfffffe1048c63560
>> llentry_free() at llentry_free+0x136/frame 0xfffffe1048c63590
>> in_lltable_free_entry() at in_lltable_free_entry+0xb0/frame
>> 0xfffffe1048c635c0
>> htable_prefix_free() at htable_prefix_free+0xce/frame 0xfffffe1048c63620
>> lltable_prefix_free() at lltable_prefix_free+0x5d/frame 0xfffffe1048c63660
>> in_scrubprefix() at in_scrubprefix+0x290/frame 0xfffffe1048c63700
>> in_difaddr_ioctl() at in_difaddr_ioctl+0x285/frame 0xfffffe1048c63750
>> in_control() at in_control+0x96/frame 0xfffffe1048c637d0
>> ifioctl() at ifioctl+0xda1/frame 0xfffffe1048c63860
>> kern_ioctl() at kern_ioctl+0x246/frame 0xfffffe1048c638c0
>> sys_ioctl() at sys_ioctl+0x171/frame 0xfffffe1048c639a0
>> amd64_syscall() at amd64_syscall+0x2f6/frame 0xfffffe1048c63ab0
>> Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe1048c63ab0
>> --- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x800fd2eba, rsp =
>> 0x7fffffffe468, rbp = 0x7fffffffe4b0 -
>>
>> Details @ https://people.freebsd.org/~pho/stress/log/bogus_refcnt.txt
>>
>>
> FYI:
> https://reviews.freebsd.org/D4605
>
> Might be related.
>
> --HPS
>
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