On 8/24/20 1:43 PM, Tong Zhang wrote: > variable err is uninitialized when bio is an error code It's fixed in Linus's tree: commit 17bc10300c69bd51b82983cdadafa0a7791f074e Author: Nathan Chancellor <natechancellor@xxxxxxxxx> Date: Mon Aug 17 23:49:25 2020 -0700 block/rnbd: Ensure err is always initialized in process_rdma -- Jens Axboe