On 03/20/2013 10:50:51 PM, Carlos Hendson wrote:
I started a long test on the hard drive:

 smartctl -t long /dev/sda

smartctl -a /dev/sda also appears to indicate various errors (the output
is attached).  I'll trying to track down some documentation as to what
they're actually reporting.

Looking at the difference between the output of smartctl for before and
during the test, there has been an increase in errors detected for ID
#195

Before test:
195 Hardware_ECC_Recovered 0x001a 001 001 000 Old_age Always
-       241822

During test:
195 Hardware_ECC_Recovered 0x001a 001 001 000 Old_age Always
-       243582

Could this be the cause of the stalls during compiles?  If it is the
cause, is it possible for the kernel to detect such failures and report
them?


These numbers are misleading. You might have a look at
http://www.users.on.net/~fzabkar/HDD/Seagate_SER_RRER_HEC.html

Helmut.


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