On 2/6/21 20:51, Yi Zhang wrote: > The issue was introduced after merge the NVMe updates > > commit 0fd6456fd1f4c8f3ec5a2df6ed7f34458a180409 (HEAD) > Merge: 44d10e4b2f2c 0d7389718c32 > Author: Jens Axboe <axboe@xxxxxxxxx> > Date: Tue Feb 2 07:12:06 2021 -0700 > > Merge branch 'for-5.12/drivers' into for-next > > * for-5.12/drivers: (22 commits) > nvme-tcp: use cancel tagset helper for tear down > nvme-rdma: use cancel tagset helper for tear down > nvme-tcp: add clean action for failed reconnection > nvme-rdma: add clean action for failed reconnection > nvme-core: add cancel tagset helpers > nvme-core: get rid of the extra space > nvme: add tracing of zns commands > nvme: parse format nvm command details when tracing > nvme: update enumerations for status codes > nvmet: add lba to sect conversion helpers > nvmet: remove extra variable in identify ns > nvmet: remove extra variable in id-desclist > nvmet: remove extra variable in smart log nsid > nvme: refactor ns->ctrl by request > nvme-tcp: pass multipage bvec to request iov_iter > nvme-tcp: get rid of unused helper function > nvme-tcp: fix wrong setting of request iov_iter > nvme: support command retry delay for admin command > nvme: constify static attribute_group structs > nvmet-fc: use RCU proctection for assoc_list > > > On 2/6/21 11:08 AM, Yi Zhang wrote: >> blktests nvme-tcp/012 Can you try following patch and see in your Oops if you get that message so that we can at-least eliminate one case ? diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c index 619b0d8f6e38..13d44d155478 100644 --- a/drivers/nvme/host/tcp.c +++ b/drivers/nvme/host/tcp.c @@ -2271,8 +2271,11 @@ static blk_status_t nvme_tcp_setup_cmd_pdu(struct nvme_ns *ns, req->data_len = blk_rq_nr_phys_segments(rq) ? blk_rq_payload_bytes(rq) : 0; req->curr_bio = rq->bio; - if (req->curr_bio) + if (req->curr_bio) { + if (rq->bio != rq->biotail) + printk(KERN_INFO"%s %d req->bio != req->biotail\n", __func__, __LINE__); nvme_tcp_init_iter(req, rq_data_dir(rq)); + } if (rq_data_dir(rq) == WRITE && req->data_len <= nvme_tcp_inline_data_size(queue))