lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

drbd: Fixed a race between disk-attach and unexpected state changes

Browse Source 
This was a very hard to trigger race condition.

If we got a state packet from the peer, after drbd_nl_disk() has
already changed the disk state to D_NEGOTIATING but
after_state_ch() was not yet run by the worker, then receive_state()
might called drbd_sync_handshake(), which in turn crashed
when accessing p_uuid.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Philipp Reisner
2010-06-02 14:31:29 +02:00
parent 7e27d6e778
commit dc66c74de6
3 changed files with 7 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/drbd.h
View File

@@ -53,7 +53,7 @@
extern const char *drbd_buildtag(void);
#define REL_VERSION "8.3.8rc2"
#define REL_VERSION "8.3.8"
#define API_VERSION 88
#define PRO_VERSION_MIN 86
#define PRO_VERSION_MAX 94