FUJITA Tomonori schrieb: > TMF (an initiator tries to abort a request due to timeout) might be > related with your problem. I'll dig into it this weekend. Here is how you can reproduce it reliably. You need to have LVM on your target. On the initiator, do: dd if=/dev/iscsi/disk of=/dev/null On the target, do: dmsetup suspend /dev/mapper/logical-volume This will block any I/O to userspace accessing that logical volume. Wait until you see in logs: Dec 16 13:54:51 megathecus tgtd: abort_task_set(988) found 60000a07 0 Dec 16 13:54:52 megathecus tgtd: conn_close(88) connection closed 0x807dc5c 4 Dec 16 13:54:55 megathecus tgtd: conn_close(88) connection closed 0x807dc5c 3 Dec 16 13:55:13 megathecus tgtd: conn_close(88) connection closed 0x807dc5c 2 Dec 16 13:55:31 megathecus tgtd: conn_close(88) connection closed 0x807dc5c 1 Then, make the volume accessible again: dmsetup resume /dev/mapper/megathecus-backup2 Which will result in: Dec 16 13:55:32 megathecus kernel: tgtd[4872]: segfault at 00000220 eip 0804f0b5 esp 77c43ff0 error 4 -- Tomasz Chmielewski http://wpkg.org -- To unsubscribe from this list: send the line "unsubscribe stgt" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html |