Description of problem:
Trying to fsck my /dev/sda1 lets fsck.vfat consume 100% CPU without any disk reads.
strace does not show any syscalls after some read().
Version-Release number of selected component (if applicable):
I dd'ed and xz'ed the partition image. Maybe you can debug fsck.vfat with that.
Dropbox link sent to firstname.lastname@example.org in private chat. Please only share with debuggers.
It does seem as ABI mismatch and it seems it was resolved by the latest rebuild. I am unable to reproduce it with the dosfstools-3.0.16-3.fc19.
I rechecked with the valgrind, there are some memory leaks due to poor coding (I am going to resolve them later), but none of them should be fatal.
*** Bug 950012 has been marked as a duplicate of this bug. ***
dosfstools-3.0.16-3.fc19 has been submitted as an update for Fedora 19.
I added this BZ to dosfstools-3.0.16-3.fc19 errata, feel free to reopen if the problem persists.
dosfstools-3.0.16-3.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report.