Hi, stgt is good and easy to use. We are using it in our private cloud environment. We face a problem and hope we can get some help. We are running heavy I/O on targets created by stgt. tgtd (1.0.12, no RDMA) is running in a virtual machines and we use files on Lustre file system as backing stores. Every target is using a file on Lustre as its LUN 1. The OS is based on CentOS 5.4, kernel version is 2.6.18-164. There are about 15~ targets for this I/O tests. (they are logged in by 1 physical node, and the disks are attached to 3 virtual machines). I/O test is vdbench file system I/O (performing in the VM). We also running tests to create/delete other targets repeatedly at the same time. After some period of time, the tgtd exits with the following message: (Please see get the completed log file from http://dl.dropbox.com/u/8354750/messages.kiefer.gz) May 12 17:55:36 localhost tgtd: conn_close(101) connection closed, 0x105c6ca8 3 May 12 17:55:36 localhost tgtd: conn_close(107) sesson 0x10882630 1 May 12 17:55:39 localhost tgtd: conn_close(90) already closed 0x105c6ca8 2 May 12 17:56:47 localhost tgtd: abort_task_set(1149) found 40000009 0 May 12 17:56:47 localhost tgtd: abort_task_set(1149) found 0 0 May 12 17:56:47 localhost tgtd: abort_cmd(1125) found 40000045 e May 12 17:57:08 localhost tgtd: conn_close(101) connection closed, 0x1074c4c8 3 May 12 17:57:08 localhost tgtd: conn_close(107) sesson 0x108a5d90 1 May 12 17:57:10 localhost tgtd: iscsi_tx_handler(2244) error 2 22 May 12 17:57:10 localhost tgtd: tgtd logger exits abnormally, pid:3296 The symptom is not always reproduce-able, sometimes it happens twice a day, sometimes it runs well for server days. iscsi_tx_handler(2244) error 2 22 is not the only exit message, we also saw: iscsi_tx_handler(2244) error 0 0 By searching the mailing list we found two threads discussing iscsi_tx_handler exit issue, but there are no further information in those threads. We suspect this is a TMF issues just as one thread says, but we still can't assure. Thanks for your time, Any help will be valuable, thanks! -- Kiefer Chang -- To unsubscribe from this list: send the line "unsubscribe stgt" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
