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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-04 08:18:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-04 08:18:19 -0700 |
| commit | 4689550bb278cb142979c313a0d608e802c6711b (patch) | |
| tree | f8776c28f1328ab4077132c636c2706f12c793aa /kernel/hung_task.c | |
| parent | b854e4de0bf88d094476af82c0d5a80f6f2af916 (diff) | |
| parent | 15e71911fcc655508e02f767a3d9b8b138051d2b (diff) | |
| download | talos-obmc-linux-4689550bb278cb142979c313a0d608e802c6711b.tar.gz talos-obmc-linux-4689550bb278cb142979c313a0d608e802c6711b.zip | |
Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core/locking changes from Ingo Molnar:
"Main changes:
- another mutex optimization, from Davidlohr Bueso
- improved lglock lockdep tracking, from Michel Lespinasse
- [ assorted smaller updates, improvements, cleanups. ]"
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
generic-ipi/locking: Fix misleading smp_call_function_any() description
hung_task debugging: Print more info when reporting the problem
mutex: Avoid label warning when !CONFIG_MUTEX_SPIN_ON_OWNER
mutex: Do not unnecessarily deal with waiters
mutex: Fix/document access-once assumption in mutex_can_spin_on_owner()
lglock: Update lockdep annotations to report recursive local locks
lockdep: Introduce lock_acquire_exclusive()/shared() helper macros
Diffstat (limited to 'kernel/hung_task.c')
| -rw-r--r-- | kernel/hung_task.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/kernel/hung_task.c b/kernel/hung_task.c index 6df614912b9d..3e97fb126e6b 100644 --- a/kernel/hung_task.c +++ b/kernel/hung_task.c @@ -15,6 +15,7 @@ #include <linux/lockdep.h> #include <linux/export.h> #include <linux/sysctl.h> +#include <linux/utsname.h> /* * The number of tasks checked: @@ -99,10 +100,14 @@ static void check_hung_task(struct task_struct *t, unsigned long timeout) * Ok, the task did not get scheduled for more than 2 minutes, * complain: */ - printk(KERN_ERR "INFO: task %s:%d blocked for more than " - "%ld seconds.\n", t->comm, t->pid, timeout); - printk(KERN_ERR "\"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\"" - " disables this message.\n"); + pr_err("INFO: task %s:%d blocked for more than %ld seconds.\n", + t->comm, t->pid, timeout); + pr_err(" %s %s %.*s\n", + print_tainted(), init_utsname()->release, + (int)strcspn(init_utsname()->version, " "), + init_utsname()->version); + pr_err("\"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\"" + " disables this message.\n"); sched_show_task(t); debug_show_held_locks(t); |
