Hi, I'm not sure if this is the correct list to send this to. I've been trying to set up ISCSI for a number of DVD-ROM drives using targetcli. I have the initiator logging in and creating the device node correctly, however when it reads from the device, the target system rapidly chews up RAM until crashing.
Kernel version on target: 4.18.16, from kernel.org, no patches applied I tested the pSCSI backend with a WD 120GB SSD as well, and found that "file -s" on the initiator seemed to cause a slow memory leak on the target, but "mkfs.ext4" again caused a rapid consumption of all RAM. I also tested the IBLOCK backend on the same SSD and found no memory leakage when running "mkfs.ext4" on the initiator. I have the kernel set up to create a vmcore file but haven't worked out where the debug symbols are to use it. So without being able to debug the vmcore, I tried using the 120GB SSD as a swap partition to see if the kernel chewed up swap as well as RAM. It doesn't. When a read on the initiated DVD-ROM device, e.g. "file -s", happens, only system RAM is consumed and swap is untouched. Attached, you will find the output of targetcli for my desired configuration of a single drive. I have another 4 to export from the same system if I can get it working. Please let me know if there's any more information you would like. Thanks, Ben Klein
o- / ......................................................................................................................... [...] o- backstores .............................................................................................................. [...] | o- block .................................................................................................. [Storage Objects: 0] | o- fileio ................................................................................................. [Storage Objects: 0] | o- pscsi .................................................................................................. [Storage Objects: 1] | | o- sr0 .................................................................................................. [/dev/sr0 activated] | o- ramdisk ................................................................................................ [Storage Objects: 0] o- iscsi ............................................................................................................ [Targets: 1] | o- iqn.2003-01.org.linux-iscsi.frankie.x8664:sn.7ff065e33228 ......................................................... [TPGs: 1] | o- tpg1 ............................................................................................... [no-gen-acls, no-auth] | o- acls .......................................................................................................... [ACLs: 1] | | o- iqn.1993-08.org.debian:kubrik ........................................................................ [Mapped LUNs: 1] | | o- mapped_lun1 ................................................................................... [lun1 pscsi/sr0 (rw)] | o- luns .......................................................................................................... [LUNs: 1] | | o- lun1 ........................................................................................... [pscsi/sr0 (/dev/sr0)] | o- portals .................................................................................................... [Portals: 1] | o- 192.168.9.1:3260 ................................................................................................. [OK] o- loopback ......................................................................................................... [Targets: 0] o- vhost ............................................................................................................ [Targets: 0]
