fatal: failed to read object cf965547a433493caa80e84d7a2b78b32a26ee35: Interrupted system call

 > [...]

In case anybody else has the same problem and finds this thread in the future, the workaround I am using is to disable progress messages.

For "git pull", "git gc" and "git push" the appropriate option is "--quiet", but for "git fsck" it is "--no-progress".

Best regards,
   rdiez