[Crash-utility] Fwd: crash failure with 2.6.36-rc3 vmcore

[CAI Qian]

----- Forwarded Message -----
From: "CAI Qian" <caiqian at redhat.com>
To: "Dave Anderson" <anderson at redhat.com>, "guenter roeck" <guenter.roeck at ericsson.com>, tj at kernel.org, gregkh at suse.de
Cc: "linux-kernel" <linux-kernel at vger.kernel.org>
Sent: Saturday, September 4, 2010 2:01:06 PM GMT +08:00 Beijing / Chongqing / Hong Kong / Urumqi
Subject: crash failure with 2.6.36-rc3 vmcore


> crash> mod -S
> 
> mod: invalid structure member offset: attribute_owner
>      FILE: symbols.c  LINE: 8577  FUNCTION: add_symbol_file_kallsyms()
> 
>      MODULE       NAME                   SIZE  OBJECT FILE
> ffffffffa000de60  dm_mod                76230 
> /lib/modules/2.6.36-rc2-mm1-wqfix-mkdfix+/kernel/drivers/md/dm-mod.ko
> [/usr/bin/crash] error trace: 4affb0 => 4f3236 => 4f12b5 => 4e587a
> 
>   4e587a: OFFSET_verify.clone.4+186
>   4f12b5: add_symbol_file+933
>   4f3236: load_module_symbols+566
>   4affb0: do_module_cmd+1264
> 
> mod: invalid structure member offset: attribute_owner
>      FILE: symbols.c  LINE: 8577  FUNCTION: add_symbol_file_kallsyms()
This failure was due to this commit,

commit 6fd69dc578fa0b1bbc3aad70ae3af9a137211707
Author: Guenter Roeck <guenter.roeck at ericsson.com>
Date:   Wed Jul 28 22:09:26 2010 -0700

    sysfs: Remove owner field from sysfs struct attribute
    
    Signed-off-by: Guenter Roeck <guenter.roeck at ericsson.com>
    Acked-by: Tejun Heo <tj at kernel.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh at suse.de>

diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 8bf06b6..3c92121 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -22,14 +22,8 @@ struct kobject;
 struct module;
 enum kobj_ns_type;
 
-/* FIXME
- * The *owner field is no longer used.
- * x86 tree has been cleaned up. The owner
- * attribute is still left for other arches.
- */
 struct attribute {
        const char              *name;
-       struct module           *owner;
        mode_t                  mode;
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
        struct lock_class_key   *key;