dynlocks: dynlock_unlock(): print invalid magic before panicking.

diff --git a/lustre/kernel_patches/patches/dynamic-locks-2.6.9.patch b/lustre/kernel_patches/patches/dynamic-locks-2.6.9.patch
index 03237b4..7ef8b32 100644 (file)
--- a/lustre/kernel_patches/patches/dynamic-locks-2.6.9.patch
+++ b/lustre/kernel_patches/patches/dynamic-locks-2.6.9.patch
@@ -82,7 +82,7 @@ Index: linux/lib/dynlocks.c
 ===================================================================
 --- linux.orig/lib/dynlocks.c
 +++ linux/lib/dynlocks.c
-@@ -0,0 +1,203 @@
+@@ -0,0 +1,207 @@
 +/*
 + * Dynamic Locks
 + *
@@ -254,6 +254,10 @@ Index: linux/lib/dynlocks.c
 +      BUG_ON(dl == NULL);
 +      BUG_ON(hl == NULL);
 +      BUG_ON(dl->dl_magic != DYNLOCK_LIST_MAGIC);
++
++      if (hl->dl_magic != DYNLOCK_MAGIC)
++              printk(KERN_EMERG "wrong lock magic: %#x\n", hl->dl_magic);
++
 +      BUG_ON(hl->dl_magic != DYNLOCK_MAGIC);
 +      BUG_ON(hl->dl_writers != 0 && current->pid != hl->dl_pid);
 +