Right, so it doesn't have any mapper entry open, making it more likely to be a kernel problem (/dev/sda1 hanging in I/O wait) than anything else.
Can you perhaps try something like: dd if=/dev/sda1 of=/dev/zero bs=1024 count=1
And see if that hangs as well?
(I'm only assuming the I/O wait is on /dev/sda1, there's no clear proof of that but it's certainly the most likely)
Right, so it doesn't have any mapper entry open, making it more likely to be a kernel problem (/dev/sda1 hanging in I/O wait) than anything else.
Can you perhaps try something like:
dd if=/dev/sda1 of=/dev/zero bs=1024 count=1
And see if that hangs as well?
(I'm only assuming the I/O wait is on /dev/sda1, there's no clear proof of that but it's certainly the most likely)