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spinlock_debug: print offset in addition to symbol name

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If there are two spinlocks embedded in a structure that kallsyms knows
about and one of the spinlocks locks up we will print the name of the
containing structure instead of the address of the lock.  This is quite
bad, so let's use %pS instead of %ps so we get an offset in addition to
the symbol so we can determine which particular lock is having problems.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Stephen Boyd 2012-07-30 14:41:11 -07:00 committed by Linus Torvalds
parent 7463449b82
commit 4b0681487b
1 changed files with 1 additions and 1 deletions
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2
lib/spinlock_debug.c
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@ -58,7 +58,7 @@ static void spin_dump(raw_spinlock_t *lock, const char *msg)
printk(KERN_EMERG "BUG: spinlock %s on CPU#%d, %s/%d\n",
msg, raw_smp_processor_id(),
current->comm, task_pid_nr(current));
printk(KERN_EMERG " lock: %ps, .magic: %08x, .owner: %s/%d, "
printk(KERN_EMERG " lock: %pS, .magic: %08x, .owner: %s/%d, "
".owner_cpu: %d\n",
lock, lock->magic,
owner ? owner->comm : "<none>",