Updated blktrace packages that fix one bug and add one enhancement are now available for Red Hat Enterprise Linux 6.
The blktrace packages contain a number of utilities to record the I/O trace information for the kernel to user space, and utilities to analyze and view the trace information.
Prior to this update, the blkparse code contained a misprint. As a result, blkparse used the wrong variable when printing the PC Writes Completed. This update modifies the code so that blkparse now prints the correct value for PC Writes Completed.
This update adds FLUSH/FUA support to blktrace.
All blktrace users are advised to upgrade to these updated packages, which fix this bug and add this enhancement.