Description of problem:

The printk output in __oom_kill_task no longer includes p->uid as it did in RHEL 5.  LLNL relies on this data point to be able to identify the user causing the oom_kill.  This allows them to address the infraction with the user.

Version-Release number of selected component (if applicable):

RHEL 6 All

How reproducible:

You don't need to reproduce it.  The code has been changed.  Just add p->uid back to the printk.

./mm/oom_kill.c

RHEL 5 

    264 static void __oom_kill_task(struct task_struct *p, const char *message)
...
    280         if (message)
    281                 printk(KERN_ERR "%s: Killed process %d, UID %d, (%s).\n",
    282                                 message, p->pid, p->uid, p->comm);


RHEL 6 

    348 static void __oom_kill_task(struct task_struct *p, int verbose)
...
    368         if (verbose)
    369                 printk(KERN_ERR "Killed process %d (%s) "
    370                                 "vsz:%lukB, anon-rss:%lukB, file-rss:%lukB\n",
    371                                 task_pid_nr(p), p->comm,
    372                                 K(p->mm->total_vm),
    373                                 K(get_mm_counter(p->mm, anon_rss)),
    374                                 K(get_mm_counter(p->mm, file_rss)));


Actual results:

No process uid in the output.

Expected results:

The process uid is in the output.

Additional info: