Messages in this thread Patch in this message | | | Date | Wed, 6 Jun 2007 05:55:56 +0000 | From | "young dave" <> | Subject | Re: [BUG] 2.6.22-rc3-mm1 remove bluetooth usb adapter caused kmalloc bug |
| |
Hi, >2007/6/6, Christoph Lameter <clameter@sgi.com>: > Note that the corruption seems to have its cause in a decrement done at > offset 16 into the object pointing to the refcount in struct hci_dev. So > it looks like the refcount was decremented after the object was freed. > > sysfs related? > I noticed in hci_core.c:
hci_dev_close call hci_dev_do_close , then call hci_dev_put
but in hci_dev_do_close also call hci_dev_put
Maybe this is the reason, by apply the below patch the bug seems doesn't exist, but the strange thing is the 2.4.22-rc4 seems works, I will test once more to see the result.
Signed-off-by: dave young <hidave.darkstar@gmail.com> --- net/bluetooth/hci_core.c | 1 - 1 file changed, 1 deletion(-)
diff -dur linux/net/bluetooth/hci_core.c linux.new/net/bluetooth/hci_core.c --- linux/net/bluetooth/hci_core.c 2007-06-06 13:47:14.000000000 +0000 +++ linux.new/net/bluetooth/hci_core.c 2007-06-06 13:46:58.000000000 +0000 @@ -577,7 +577,6 @@
hci_req_unlock(hdev);
- hci_dev_put(hdev); return 0; }
Regards dave - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |