1.273. strace

An updated strace package that fixes multiple bugs is now available for Red Hat Enterprise 6.
The strace program intercepts and records the system calls called and received by a running process. It can print a record of each system call, its arguments and its return value.

Bug Fixes

BZ#533199
Previously, the manual pages and the output of "strace --help" contained inconsistencies. This update corrects these errors. Now, the descriptions for the listed options on the manual pages and in the output of ‘strace --help’ contain the same information.
BZ#642389
Previously, the CLONE_PTRACE flag was set in the arguments of a clone when it was called with the flag CLONE_UNTRACED. Due to this behavior, strace traced the child process for clones called with the flag CLONE_UNTRACED.This update does no longer trace children with CLONE_UNTRACED. Now, the tracing of child processes behaves as expected.
BZ#654515
Previously, the decoding of 64-bit arguments of certain system calls was incorrect. This update corrects this issue. Now, 64-bit arguments of system calls are decoded as expected.
BZ#661748
Previously, waitpid waited for children created by clone even when the options "__WCLONE" or "__WALL" were not present. Due to this behavior, the process became suspended. This update does no longer suspend the process in the waitpid system call.
All strace users are advised to upgrade to this updated strace package, which fixes these bugs.