Hi Steve, On 2016/02/16 9:36, Toshiaki Makita wrote: > statd calls atexit(statd_unregister) to unregister statd service on exit, > which actually has a side-effect that ha_callout() unregisters statd > service even when the child callout process exits on execl() failure. > > Certain clustering software's deployment script adds -H option with its > specified file non-existent, when it is configured not to use callout. > In other words, -H seems to be used no matter if callout is needed or not, > but when callout is unnecessary, the specified callout program is not > deployed. > This causes statd not to work once a lock is requested by its NFS client, > as execl() in ha_callout() results in ENOENT and exit() of the child > process calls exit-handler statd_unregister(). Eventually, the NFS client > gets stuck with messages "lockd: cannot monitor xxx" on the NFS server. > > Also, execl() could fail for other reasons like ENFILE or EIO as well. > > A forked child must not unregister the statd RPC server, so use > _exit(), which does not call any exit-handlers, instead of exit(). > > Signed-off-by: Toshiaki Makita <makita.toshiaki@xxxxxxxxxxxxx> > Reviewed-by: Chuck Lever <chuck.lever@xxxxxxxxxx> Would you tell me the status of this patch? Regards, Toshiaki Makita -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
