I have a little program that uses mmap() to copy files. Essentially:
addr1 = mmap(fd1);
addr2 = mmap(fd2);
memcpy(addr1, addr2, len);
If these files are on ecryptfs and I interrupt the memcpy() with ^C, I
consistently get this in dmesg:
ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4]
ecryptfs_readpage: Error decrypting page; rc = [-4]
-4 is, of course -EINTR because of the ^C. Should we be suppressing the
message when we see EINTR?
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