[Stgt-devel] Bug report - create a file on mounted FS (ext3) with dd fails

[Pete Wyckoff]

dorfman.eli at gmail.com wrote on Mon, 21 Jul 2008 10:28 +0300:
> I have the following test environment:
> Initiator: RH4.4 with OFED1.3.1
> Target: RH5.1 with Stgt latest snapshot 20080715
> I'm using iser transport
> 
> I created an ext3 FS on the device
> #mkfs.ext3 /dev/sdc
> 
> mounted the device
> # mount /dev/sdc /mnt/sdc
> 
> Trying to create a file on the mounted FS
> # dd if=/dev/zero of=/mnt/sdc/tempfile bs=1k count=40M
> 
> I got the following error on the initiator:
> 
> dd: writing `/mnt/sdc/tempfile': Read-only file system
> 1489+0 records in
> 1488+0 records out

Take a look at the initiator logs to see if there is anything fishy.

> And the following messages on the target:
> tgtd: iser_rx_progress(1101) entry
> tgtd: handle_wc(880) outgoing rsp complete
> tgtd: handle_wc(880) outgoing rsp complete
> tgtd: iser_rx_progress(1101) entry
> bs_rdwr_request(121) io done 0x546df8 2a 4096 4096
> tgtd: bs_thread_ack_fn(82) found 0x546df8
> tgtd: bs_thread_request_done(122) back to tgtd, 0x546df8
> tgtd: iscsi_rdma_event_modify(1628) tx ready adding 0x5327e0
> tgtd: iser_tx_progress(1017) entry
> tgtd: iser_tx_progress(1028) trying tx
> tgtd: iscsi_task_tx_start(1745) found a task 7b 4096 0 0
> tgtd: iscsi_iser_write_begin(1352) new sendl 0x2aaaba9fd090 len 48
> tgtd: iscsi_iser_write_end(1387) sendl 0x2aaaba9fd090 len 76
> tgtd: iscsi_iser_write_end(1402) inc progress to finish cmd
> tgtd: __cmd_done(894) 8 0x2aaaac22c000 (nil) 4096 0 0
> tgtd: iscsi_rdma_free_data_buf(1678) free 0x2aaaac22c000
> tgtd: iser_tx_progress(1028) trying tx
> tgtd: iscsi_task_tx_start(1770) no more data
> tgtd: iscsi_rdma_event_modify(1633) tx ready removing 0x5327e0
> tgtd: iser_tx_progress(1017) entry
> tgtd: iser_rx_progress(1101) entry
> tgtd: handle_wc(880) outgoing rsp complete

This is all normal.  A 4 kB write completed with no errors.

		-- Pete