jbd : config_jbd_debug cannot create /proc entry

From: richard kennedy
Date: Tue Sep 25 2007 - 05:41:24 EST

I enabled config_jbd_debug in the hope that it may help track down the
lockup I'm seeing, but unfortunately the /proc entry does not get

any ideas how to fix this ?

My machine is an Athlon 64X2 - fedora 7 x86_64 - 2.6.23-rc7


I added the following patch that shows create_proc_entry is failing


diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index 06ab3c1..40e7ea3 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -1983,7 +1983,8 @@ static void __init create_jbd_proc_entry(void)
/* Why is this so hard? */
proc_jbd_debug->read_proc = read_jbd_debug;
proc_jbd_debug->write_proc = write_jbd_debug;
- }
+ } else
+ printk( KERN_WARNING "jbd:cannot create proc entry : " JBD_PROC_NAME "\n");

static void __exit remove_jbd_proc_entry(void)

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