On 6/9/21 1:29 PM, Song Liu wrote: > Hi Lidong, > > On Sat, Jun 5, 2021 at 8:29 AM Lidong Zhong <lidong.zhong@xxxxxxxx> wrote: >> >> The mddev data structure is freed in mddev_delayed_delete(), which is >> schedualed after the array is deconfigured completely when stopping. So >> there is a race window between md_open() and do_md_stop(), which leads >> to /dev/mdX can still be opened by userspace even it's not accessible >> any more. As a result, a DeviceDisappeared event will not be able to be >> monitored by mdadm in monitor mode. This patch tries to fix it by adding >> this new flag MD_DELETING. >> >> Signed-off-by: Lidong Zhong <lidong.zhong@xxxxxxxx> > > The patch still contains a lot of bad format strings. How did you send > it? I guess > it is not from git-send-email? > Hi Song, Sorry it still doesn't work, but I did send it from git-send-email. I'll send the patch after I figure out the reason. Regards, Lidong