* Kernel panic on kernel-3.10.0-693.21.1.el7 in ndisc.h
@ 2018-05-13 11:35 Roman Makhov
2018-05-14 15:40 ` Alexander Aring
0 siblings, 1 reply; 6+ messages in thread
From: Roman Makhov @ 2018-05-13 11:35 UTC (permalink / raw)
To: linux-wpan, netdev
Hello,
We have a problem with Kernel panic after upgrade from CentOS 7.3
(kernel-3.10.0-514.el7) to CentOS 7.4 (kernel-3.10.0-693.21.1.el7).
It occurs when we have the incoming traffic from other nodes and we
are performing the re-configuration of IPv6 interfaces.
It is high-availability system without 802.15.4 support.
The log of crash:
=========================================================
#10 [ffff88043fc03cf0] async_page_fault at ffffffff816b7798
[exception RIP: ndisc_send_rs+238]
RIP: ffffffff8166575e RSP: ffff88043fc03da8 RFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff88042caa9000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000200 RDI: ffffffff816534f7
RBP: ffff88043fc03dd0 R8: 0000000000000000 R9: ffffffff81e9f1c0
R10: 0000000000000002 R11: ffff88043fc03da8 R12: 0000000000000008
R13: 0000000000000006 R14: ffff88043fc03de0 R15: ffffffff81772410
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#11 [ffff88043fc03da0] ndisc_send_rs at ffffffff81665704
=========================================================
I see that crash points on ndisc.h, it is ndisc_ops_opt_addr_space()
in function:
=========================================================
crash> kmem ffffffff8166575e
ffffffff8166575e (T) ndisc_send_rs+238
/usr/src/debug/kernel-3.10.0-693.21.1.el7/linux-3.10.0-693.21.1.el7.x86_64/include/net/ndisc.h:
251
PAGE PHYSICAL MAPPING INDEX CNT FLAGS
ffffea0000059940 1665000 0 0 1 1fffff00000400 reserved
crash>
=========================================================
I checked the difference between 514 and 693 kernels is in the patch
https://patchwork.kernel.org/patch/9179229/ .
Any suggesions about what I am doing wrong are welcome.
Thanks!
Roman Makhov
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: Kernel panic on kernel-3.10.0-693.21.1.el7 in ndisc.h
2018-05-13 11:35 Kernel panic on kernel-3.10.0-693.21.1.el7 in ndisc.h Roman Makhov
@ 2018-05-14 15:40 ` Alexander Aring
2018-05-14 15:41 ` Alexander Aring
2018-05-14 18:29 ` Roman Makhov
0 siblings, 2 replies; 6+ messages in thread
From: Alexander Aring @ 2018-05-14 15:40 UTC (permalink / raw)
To: Roman Makhov; +Cc: linux-wpan, netdev
Hi,
On Sun, May 13, 2018 at 02:35:07PM +0300, Roman Makhov wrote:
> Hello,
>
> We have a problem with Kernel panic after upgrade from CentOS 7.3
> (kernel-3.10.0-514.el7) to CentOS 7.4 (kernel-3.10.0-693.21.1.el7).
> It occurs when we have the incoming traffic from other nodes and we
> are performing the re-configuration of IPv6 interfaces.
>
> It is high-availability system without 802.15.4 support.
>
> The log of crash:
> =========================================================
> #10 [ffff88043fc03cf0] async_page_fault at ffffffff816b7798
> [exception RIP: ndisc_send_rs+238]
> RIP: ffffffff8166575e RSP: ffff88043fc03da8 RFLAGS: 00010202
> RAX: 0000000000000002 RBX: ffff88042caa9000 RCX: 0000000000000001
> RDX: 0000000000000000 RSI: 0000000000000200 RDI: ffffffff816534f7
> RBP: ffff88043fc03dd0 R8: 0000000000000000 R9: ffffffff81e9f1c0
> R10: 0000000000000002 R11: ffff88043fc03da8 R12: 0000000000000008
> R13: 0000000000000006 R14: ffff88043fc03de0 R15: ffffffff81772410
> ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
> #11 [ffff88043fc03da0] ndisc_send_rs at ffffffff81665704
> =========================================================
>
> I see that crash points on ndisc.h, it is ndisc_ops_opt_addr_space()
> in function:
> =========================================================
> crash> kmem ffffffff8166575e
> ffffffff8166575e (T) ndisc_send_rs+238
> /usr/src/debug/kernel-3.10.0-693.21.1.el7/linux-3.10.0-693.21.1.el7.x86_64/include/net/ndisc.h:
> 251
>
> PAGE PHYSICAL MAPPING INDEX CNT FLAGS
> ffffea0000059940 1665000 0 0 1 1fffff00000400 reserved
> crash>
> =========================================================
>
> I checked the difference between 514 and 693 kernels is in the patch
> https://patchwork.kernel.org/patch/9179229/ .
>
> Any suggesions about what I am doing wrong are welcome.
>
Me as original author of this patch,
I cannot help you with such a dinosaurs kernel. Please try it with the
latest one and check if the problem still exists.
- Alex
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Kernel panic on kernel-3.10.0-693.21.1.el7 in ndisc.h
2018-05-14 15:40 ` Alexander Aring
@ 2018-05-14 15:41 ` Alexander Aring
2018-05-14 18:29 ` Roman Makhov
1 sibling, 0 replies; 6+ messages in thread
From: Alexander Aring @ 2018-05-14 15:41 UTC (permalink / raw)
To: Roman Makhov; +Cc: linux-wpan, netdev
Hi,
On Mon, May 14, 2018 at 11:40:02AM -0400, Alexander Aring wrote:
...
> I cannot help you with such a dinosaurs kernel. Please try it with the
> latest one and check if the problem still exists.
>
and please don't write me private e-mails, always use the mailingst.
Thanks.
- Alex
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Kernel panic on kernel-3.10.0-693.21.1.el7 in ndisc.h
2018-05-14 15:40 ` Alexander Aring
2018-05-14 15:41 ` Alexander Aring
@ 2018-05-14 18:29 ` Roman Makhov
2018-05-14 21:06 ` Stephen Hemminger
1 sibling, 1 reply; 6+ messages in thread
From: Roman Makhov @ 2018-05-14 18:29 UTC (permalink / raw)
To: Alexander Aring; +Cc: linux-wpan, netdev
Hi Alexander,
Thank you for the answer.
Unfortunately CentOS goes with these dinosaurs.
So we will try to debug the problem in the current one and try to
reproduce on the latest kernel.
Thanks,
Roman.
2018-05-14 18:40 GMT+03:00 Alexander Aring <aring@mojatatu.com>:
> Hi,
>
> On Sun, May 13, 2018 at 02:35:07PM +0300, Roman Makhov wrote:
>> Hello,
>>
>> We have a problem with Kernel panic after upgrade from CentOS 7.3
>> (kernel-3.10.0-514.el7) to CentOS 7.4 (kernel-3.10.0-693.21.1.el7).
>> It occurs when we have the incoming traffic from other nodes and we
>> are performing the re-configuration of IPv6 interfaces.
>>
>> It is high-availability system without 802.15.4 support.
>>
>> The log of crash:
>> =========================================================
>> #10 [ffff88043fc03cf0] async_page_fault at ffffffff816b7798
>> [exception RIP: ndisc_send_rs+238]
>> RIP: ffffffff8166575e RSP: ffff88043fc03da8 RFLAGS: 00010202
>> RAX: 0000000000000002 RBX: ffff88042caa9000 RCX: 0000000000000001
>> RDX: 0000000000000000 RSI: 0000000000000200 RDI: ffffffff816534f7
>> RBP: ffff88043fc03dd0 R8: 0000000000000000 R9: ffffffff81e9f1c0
>> R10: 0000000000000002 R11: ffff88043fc03da8 R12: 0000000000000008
>> R13: 0000000000000006 R14: ffff88043fc03de0 R15: ffffffff81772410
>> ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
>> #11 [ffff88043fc03da0] ndisc_send_rs at ffffffff81665704
>> =========================================================
>>
>> I see that crash points on ndisc.h, it is ndisc_ops_opt_addr_space()
>> in function:
>> =========================================================
>> crash> kmem ffffffff8166575e
>> ffffffff8166575e (T) ndisc_send_rs+238
>> /usr/src/debug/kernel-3.10.0-693.21.1.el7/linux-3.10.0-693.21.1.el7.x86_64/include/net/ndisc.h:
>> 251
>>
>> PAGE PHYSICAL MAPPING INDEX CNT FLAGS
>> ffffea0000059940 1665000 0 0 1 1fffff00000400 reserved
>> crash>
>> =========================================================
>>
>> I checked the difference between 514 and 693 kernels is in the patch
>> https://patchwork.kernel.org/patch/9179229/ .
>>
>> Any suggesions about what I am doing wrong are welcome.
>>
>
> Me as original author of this patch,
>
> I cannot help you with such a dinosaurs kernel. Please try it with the
> latest one and check if the problem still exists.
>
> - Alex
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Kernel panic on kernel-3.10.0-693.21.1.el7 in ndisc.h
2018-05-14 18:29 ` Roman Makhov
@ 2018-05-14 21:06 ` Stephen Hemminger
2018-05-15 6:55 ` Michal Kubecek
0 siblings, 1 reply; 6+ messages in thread
From: Stephen Hemminger @ 2018-05-14 21:06 UTC (permalink / raw)
To: Roman Makhov; +Cc: Alexander Aring, linux-wpan, netdev
On Mon, 14 May 2018 21:29:03 +0300
Roman Makhov <roman.makhov@gmail.com> wrote:
> Hi Alexander,
>
> Thank you for the answer.
> Unfortunately CentOS goes with these dinosaurs.
> So we will try to debug the problem in the current one and try to
> reproduce on the latest kernel.
>
> Thanks,
> Roman.
If you are stuck in old kernels, please bug the CentOs maintainers not upstream developers.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Kernel panic on kernel-3.10.0-693.21.1.el7 in ndisc.h
2018-05-14 21:06 ` Stephen Hemminger
@ 2018-05-15 6:55 ` Michal Kubecek
0 siblings, 0 replies; 6+ messages in thread
From: Michal Kubecek @ 2018-05-15 6:55 UTC (permalink / raw)
To: Roman Makhov; +Cc: Stephen Hemminger, Alexander Aring, linux-wpan, netdev
On Mon, May 14, 2018 at 02:06:11PM -0700, Stephen Hemminger wrote:
> On Mon, 14 May 2018 21:29:03 +0300 Roman Makhov <roman.makhov@gmail.com> wrote:
> > Thank you for the answer.
> > Unfortunately CentOS goes with these dinosaurs.
> > So we will try to debug the problem in the current one and try to
> > reproduce on the latest kernel.
>
> If you are stuck in old kernels, please bug the CentOs maintainers not
> upstream developers.
Actually, it's not even the dinosaur. Kernels from RHEL (and therefore
CentOS) or SLES differ from the original mainline version they are based
on quite a lot. It's possible that this bug didn't really exist in the
old 3.10 and is related to one of the backports added to CentOS (or
rather RHEL in this case) kernel. People outside of the distribution
have little idea what was backported and why so unless the issue can be
reproduced with mainline kernel they cannot be expected to help.
Michal Kubecek
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2018-05-15 6:55 UTC | newest]
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2018-05-13 11:35 Kernel panic on kernel-3.10.0-693.21.1.el7 in ndisc.h Roman Makhov
2018-05-14 15:40 ` Alexander Aring
2018-05-14 15:41 ` Alexander Aring
2018-05-14 18:29 ` Roman Makhov
2018-05-14 21:06 ` Stephen Hemminger
2018-05-15 6:55 ` Michal Kubecek
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