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d6a342b373
This patch fixes the following hang:
SysRq : Show Blocked State
task PC stack pid father
iscsi-scstd D 0000000000000007 0 7981 1 0x00000084
ffff88007ad87ae8 0000000000000046 0000000000000000 0000000000000010
0000000000000246 ffff88007ad87a48 0000002483e71851 0000000000000246
00000000fffdd081 0000000000000c83 ffff880078e8b068 ffff88007ad87fd8
Call Trace:
[<ffffffffa050667d>] isert_wait_for_portal_release+0x6d/0xc0 [isert_scst]
[<ffffffffa04fd5cd>] isert_close_all_portals+0x3d/0x50 [isert_scst]
[<ffffffffa04deeca>] target_del_all+0x9a/0x2b0 [iscsi_scst]
[<ffffffffa04d7688>] iscsi_release+0x48/0xe0 [iscsi_scst]
[<ffffffff811a46c8>] __fput+0xf8/0x220
[<ffffffff811a4815>] fput+0x25/0x30
[<ffffffff8119f8d0>] filp_close+0x60/0x90
[<ffffffff81084ccf>] put_files_struct+0x7f/0xf0
[<ffffffff81084d93>] exit_files+0x53/0x70
[<ffffffff81086ecd>] do_exit+0x18d/0x860
[<ffffffff810875f8>] do_group_exit+0x58/0xd0
[<ffffffff8109d576>] get_signal_to_deliver+0x1f6/0x470
[<ffffffff8100a375>] do_signal+0x75/0x8d0
[<ffffffff8100ac60>] do_notify_resume+0x90/0xc0
[<ffffffff8156672f>] int_signal+0x12/0x17
Fixes: 5d808c54 ("isert-scst: Introduce the function isert_setup_id()")
Signed-off-by: Chesnokov Gleb <Chesnokov.G@raidix.com>
[ bvanassche: added call stack ]
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9487 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Overview
This is the source code repository of the SCST project. SCST is a collection of Linux kernel drivers that implement SCSI target functionality. The SCST project includes:
- The SCST core in the scst/ subdirectory.
- A tool for loading, saving and modifying the SCST configuration in directory scstadmin/.
- Several SCSI target drivers in the directories iscsi-scst/, qla2x00t/, srpt/, scst_local/ and fcst/.
- User space programs in the usr/ subdirectory, e.g. fileio_tgt.
- Various documentation in the doc/ subdirectory.
Instructions for building and installing SCST are available in the INSTALL.md file.
QLogic target driver
Two QLogic target drivers are included in the SCST project.
The default driver is located in qla2x00t-32gbit directory and it supports up to 32 Gb/s FC. It is the newer one.
May anyone wish to switch back to the older driver that only supported up to
16 Gb/s adapters, it is located in qla2x00t directory. To make use of the
older driver build scst with environment variable QLA_32GBIT=no set.
Vladislav Bolkhovitin vst@vlnb.net, http://scst.sourceforge.net