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Old 12-08-2011, 01:29 PM
Calvin Arndt
 
Default <6> general protection ip:7f082ea07bd0 sp:7fff28b3df10 error:0 in ld-2.13.so

I have an issue with a machine I built recently.

I'm running stock ubuntu 11.04 server



kernel:
Linux VS1 2.6.38-13-server #52-Ubuntu SMP Tue Nov 8 17:11:08 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
*
dmesg output contains hundreds of these reports!
*
[33021.464531] do_general_protection: 8 callbacks suppressed
[33021.464533] ping[3647] general protection ip:7f082ea07bd0 sp:7fff28b3df10 error:0 in ld-2.13.so[7f082e9f2000+1f000]
[33021.465293] ping[3649] general protection ip:7f62890ebbd0 sp:7fff7aa3e890 error:0 in ld-2.13.so[7f62890d6000+1f000]
[33031.569274] ping[3802] general protection ip:7fd619817bd0 sp:7fff5c1e5540 error:0 in ld-2.13.so[7fd619802000+1f000]
[33031.570033] ping[3803] general protection ip:7f7df26e5bd0 sp:7fffdedd5f20 error:0 in ld-2.13.so[7f7df26d0000+1f000]
[33031.570753] ping[3804] general protection ip:7fedf28f3bd0 sp:7fffb49d0ce0 error:0 in ld-2.13.so[7fedf28de000+1f000]
[33041.671140] ping[3900] general protection ip:7fba56956bd0 sp:7fffe16919b0 error:0 in ld-2.13.so[7fba56941000+1f000]
[33041.671880] ping[3901] general protection ip:7f2b254cfbd0 sp:7fffc4084200 error:0 in ld-2.13.so[7f2b254ba000+1f000]


One would think that ping is failing. Ping does not appear to be causing these reports. Ping and fping work flawlessly as expected.

root@VS1:~# ping xyz.com
PING xyz.com (50.28.84.20) 56(84) bytes of data.
64 bytes from 50.28.84.20: icmp_req=1 ttl=56 time=10.1 ms
64 bytes from 50.28.84.20: icmp_req=2 ttl=56 time=10.0 ms
64 bytes from 50.28.84.20: icmp_req=3 ttl=56 time=9.94 ms
64 bytes from 50.28.84.20: icmp_req=4 ttl=56 time=10.0 ms
^C64 bytes from 50.28.84.20: icmp_req=5 ttl=56 time=10.0 ms

--- xyz.com ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 20079ms
rtt min/avg/max/mdev = 9.941/10.048/10.148/0.092 ms


--
Calvin


--
Calvin


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Old 12-08-2011, 02:20 PM
"Kevin O'Gorman"
 
Default <6> general protection ip:7f082ea07bd0 sp:7fff28b3df10 error:0 in ld-2.13.so

On Thu, Dec 8, 2011 at 6:29 AM, Calvin Arndt <carndt@macksrecycling.com> wrote:
> I have an issue with a machine I built recently.
>
> I'm running stock ubuntu 11.04 server
>
> kernel:
> Linux VS1 2.6.38-13-server #52-Ubuntu SMP Tue Nov 8 17:11:08 UTC 2011 x86_64
> x86_64 x86_64 GNU/Linux
>
> dmesg output contains hundreds of these reports!
>
> [33021.464531] do_general_protection: 8 callbacks suppressed
> [33021.464533] ping[3647] general protection ip:7f082ea07bd0 sp:7fff28b3df10
> error:0 in ld-2.13.so[7f082e9f2000+1f000]
> [33021.465293] ping[3649] general protection ip:7f62890ebbd0 sp:7fff7aa3e890
> error:0 in ld-2.13.so[7f62890d6000+1f000]
> [33031.569274] ping[3802] general protection ip:7fd619817bd0 sp:7fff5c1e5540
> error:0 in ld-2.13.so[7fd619802000+1f000]
> [33031.570033] ping[3803] general protection ip:7f7df26e5bd0 sp:7fffdedd5f20
> error:0 in ld-2.13.so[7f7df26d0000+1f000]
> [33031.570753] ping[3804] general protection ip:7fedf28f3bd0 sp:7fffb49d0ce0
> error:0 in ld-2.13.so[7fedf28de000+1f000]
> [33041.671140] ping[3900] general protection ip:7fba56956bd0 sp:7fffe16919b0
> error:0 in ld-2.13.so[7fba56941000+1f000]
> [33041.671880] ping[3901] general protection ip:7f2b254cfbd0 sp:7fffc4084200
> error:0 in ld-2.13.so[7f2b254ba000+1f000]
>
>
> One would think that ping is failing. Ping does not appear to be causing
> these reports. Ping and fping work flawlessly as expected.
>
> root@VS1:~# ping xyz.com
> PING xyz.com (50.28.84.20) 56(84) bytes of data.
> 64 bytes from 50.28.84.20: icmp_req=1 ttl=56 time=10.1 ms
> 64 bytes from 50.28.84.20: icmp_req=2 ttl=56 time=10.0 ms
> 64 bytes from 50.28.84.20: icmp_req=3 ttl=56 time=9.94 ms
> 64 bytes from 50.28.84.20: icmp_req=4 ttl=56 time=10.0 ms
> ^C64 bytes from 50.28.84.20: icmp_req=5 ttl=56 time=10.0 ms
>
> --- xyz.com ping statistics ---
> 5 packets transmitted, 5 received, 0% packet loss, time 20079ms
> rtt min/avg/max/mdev = 9.941/10.048/10.148/0.092 ms
>
>
> --
> Calvin

It's not clear to me why you're implicating ping. This looks like
something either from the library ld-2.13.so, or from the kernel about
that library. I'm only guessing, but I would further guess that
"general protection" is part of the security apparatus that keeps
processes from interfering with eachother or with the kernel, and is
mediated by the hardware.

Good luck with that. I suspect you'll need it.

++kevin
--
Kevin O'Gorman, PhD

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Old 12-08-2011, 05:08 PM
NoOp
 
Default <6> general protection ip:7f082ea07bd0 sp:7fff28b3df10 error:0 in ld-2.13.so

On 12/08/2011 06:29 AM, Calvin Arndt wrote:
>
>
> I have an issue with a machine I built recently.
>
> I'm running
> stock ubuntu 11.04 server
>
> kernel:
> Linux VS1 2.6.38-13-server
> #52-Ubuntu SMP Tue Nov 8 17:11:08 UTC 2011 x86_64 x86_64 x86_64
> GNU/Linux
>
> dmesg output contains hundreds of these reports!
>
>
> [33021.464531] do_general_protection: 8 callbacks
> suppressed
> [33021.464533] ping[3647] general protection ip:7f082ea07bd0
> sp:7fff28b3df10 error:0 in ld-2.13.so[7f082e9f2000+1f000]
...

ld-2.13.so is provided by the libc6 package:
http://packages.ubuntu.com/natty/amd64/libc6/filelist
/lib/x86_64-linux-gnu/ld-2.13.so

Also notice that the ping pid keeps incrementing: ping[3647] to
ping[3901]. Do you have a cron job that is invoking ping?




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