Date: Tue, 3 Mar 2015 14:45:22 +0530 From: Aafak Mohammad <aafak.mohammad@cloudbyte.com> To: freebsd-scsi@freebsd.org Subject: iSCSI initiator: iscontrol cannot be stopped or killed Message-ID: <CAC5dOi=bf-x2_UzWUexwKPmKA7_EVngFUD_ZWy9RNji9nfW9xw@mail.gmail.com>
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Problem: the iscontrol process starts normally and establishes a session and brings up a device, but it cannot be stopped. It does not react to a HUP signal, and neither to KILL. The /dev/da0 device is operational and the remote disk remains normally accessible, regardless of how I try to (unsuccessfully) shutdown the iscontrol process. The ps reports the state of the process as "Ds", not doing anything. A ktrace does not show any reaction to a received signal. A restart seems to be necessary to break the iSCSI session. Using FreeBSD 9.2 info: root@trunk-mar3-node2:~ # ps -aux | grep iscontrol root 3293 0.0 0.1 16340 1884 ?? Ds 2:17PM 0:00.00 iscontrol -c /etc/iscsi.conf -n sbiiscsiDisk31 root 3365 0.0 0.1 16340 1892 ?? Ds 2:20PM 0:00.00 iscontrol -v -c /etc/iscsi.conf -n sbiiscsiDisk32 root@trunk-mar3-node2:~ # root@trunk-mar3-node2:~ # procstat -kka | grep 3293 3293 100659 iscontrol - mi_switch+0x194 sleepq_timedwait+0x42 _sleep+0x1c9 ic_init+0x2e9 i_fullfeature+0x97 iscsi_ioctl+0x66d devfs_ioctl_f+0x7b kern_ioctl+0x106 sys_ioctl+0xfd amd64_syscall+0x5ea Xfast_syscall+0xf7 root@trunk-mar3-node2:~ # procstat -k -k 3293 PID TID COMM TDNAME KSTACK 3293 100659 iscontrol - mi_switch+0x194 sleepq_timedwait+0x42 _sleep+0x1c9 ic_init+0x2e9 i_fullfeature+0x97 iscsi_ioctl+0x66d devfs_ioctl_f+0x7b kern_ioctl+0x106 sys_ioctl+0xfd amd64_syscall+0x5ea Xfast_syscall+0xf7 root@trunk-mar3-node2:~ # procstat -kk grep 3293 procstat: open(grep): No such file or directory procstat: procstat_open() PID TID COMM TDNAME KSTACK 3293 100659 iscontrol - mi_switch+0x194 sleepq_timedwait+0x42 _sleep+0x1c9 ic_init+0x2e9 i_fullfeature+0x97 iscsi_ioctl+0x66d devfs_ioctl_f+0x7b kern_ioctl+0x106 sys_ioctl+0xfd amd64_syscall+0x5ea Xfast_syscall+0xf7 --=20 Thanks and Regards, Aafak [image: cid:image001.png@01CF7E5A.8A69F530] Plot No. : 2799 & 2800, Srinidhi Bldg, 3rd Floor, 27th Main, Sector =E2=80=93 1, HSR Layout, Bangalore =E2=80=93 560102, Call: (91)-80-2258-2804 www.cloudbyte.com
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