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Add debug patch for bugs 787171/766277

This commit is contained in:
Dave Jones 2012-03-07 17:08:44 -05:00
parent 761d970eca
commit fcf71737a1
2 changed files with 26 additions and 0 deletions
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7
kernel.spec
View File

@ -736,6 +736,8 @@ Patch21109: mm-memcg-Correct-unregistring-of-events-attached-to-.patch
Patch21200: unhandled-irqs-switch-to-polling.patch
Patch22000: weird-root-dentry-name-debug.patch
%endif
BuildRoot: %{_tmppath}/kernel-%{KVERREL}-root
@ -1357,6 +1359,8 @@ ApplyPatch regset-Return-EFAULT-not-EIO-on-host-side-memory-fau.patch
ApplyPatch unhandled-irqs-switch-to-polling.patch
ApplyPatch weird-root-dentry-name-debug.patch
#rhbz 786632
ApplyPatch mm-thp-fix-BUG-on-mm-nr_ptes.patch
@ -2010,6 +2014,9 @@ fi
# and build.
%changelog
* Wed Mar 07 2012 Dave Jones <davej@redhat.com>
- Add debug patch for bugs 787171/766277
* Wed Mar 07 2012 Josh Boye <jwboyer@redhat.com>
- CVE-2012-1146: memcg: unregister events attached to the same eventfd can
oops (rhbz 800817)

19
weird-root-dentry-name-debug.patch Normal file
View File

@ -0,0 +1,19 @@
debug patch for bz 787171/766277
diff --git a/fs/dcache.c b/fs/dcache.c
index bcbdb33..a6a5fdb 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2530,8 +2530,10 @@ global_root:
*/
if (IS_ROOT(dentry) &&
(dentry->d_name.len != 1 || dentry->d_name.name[0] != '/')) {
- WARN(1, "Root dentry has weird name <%.*s>\n",
- (int) dentry->d_name.len, dentry->d_name.name);
+ WARN(1, "Root dentry has weird name <%.*s> vfsmnt:%s fs:%s\n",
+ (int) dentry->d_name.len, dentry->d_name.name,
+ vfsmnt->mnt_root->d_name.name,
+ vfsmnt->mnt_sb->s_type->name);
}
if (!slash)
error = prepend(buffer, buflen, "/", 1);