Boston Linux & UNIX was originally founded in 1994 as part of The Boston Computer Society. We meet on the third Wednesday of each month at the Massachusetts Institute of Technology, in Building E51.

BLU Discuss list archive


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Discuss] Linux on Lenovo P70 -- data corruption



On 09/04/2017 04:08 PM, Robert Krawitz wrote:
> On Mon, 4 Sep 2017 15:56:06 -0400, Kent Borg wrote:
>> On 09/04/2017 02:10 PM, Robert Krawitz wrote:
>>> On Mon, 4 Sep 2017 13:59:48 -0400, Frank DiPrete wrote:
>>>> What us the NIC in the laptop ?
>>>> I've had this problem before using the open source driver for a network
>>>> adapter.
>>>> (trying to remember which one)
>>> But this appears to also happen over the loopback interface.
>> If you can reliably get it to mess up, see what reliably never messes up, squeeze between the two.
> I reproduced the problem under Windows, with exactly the same
> symptoms.  But it was considerably harder, perhaps because ssh/scp
> under Cygwin is a lot slower than it is on Linux, and it did appear
> that the rate of data transfer affected how frequently it failed.
>
> I did it by copying a ~36 GB file repeatedly from a known good Linux
> host to the laptop, while running a load in the background (on Linux,
> multiple copies of glxgears with the option to turn off sync, on
> Windows, by running prime95 along with an OpenGL demo in the
> background).  It took me about 5 tries on Windows to finally get a
> failure, but I did, with exactly the same pattern as under Linux.

Congratulations! Sounds like a hardware problem. (Unless it is a problem 
in scp!)

-kb




BLU is a member of BostonUserGroups
BLU is a member of BostonUserGroups
We also thank MIT for the use of their facilities.

Valid HTML 4.01! Valid CSS!



Boston Linux & Unix / webmaster@blu.org