Comment 8 for bug 1861776

(In reply to Andreas Schwab from comment #4)
> Where do you see it reading more than one block?

Oh, I stand corrected, on glibc 2.30 this is no longer reproducible. Though it's reproducible on glibc 2.27, just 3 versions ago. Reproducing that simply requires one to run something like `sudo hexdump -C /dev/sda -s 0xa8000f9000 -n 1`: if it hangs, it's because `fseek()` hexdump is using tries to read 0xa8000f9000 amount of data.