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a327b6e700
This patch fixes the following kernel oops: [7781]: scst: scst_translate_lun:3935:tgt_dev for LUN 1 not found, command to unexisting LU (initiator local3, target local3)? BUG: unable to handle kernel NULL pointer dereference at 0000000000000500 IP: [<ffffffffa027662e>] scst_set_resp_data_len+0x17e/0x1c0 [scst] PGD 2de7a067 PUD 2dd4d067 PMD 0 Oops: 0000 [#1] SMP Modules linked in: scst_local(O) iscsi_scst(O) scst_vdisk(O) scst(O) brd netconsole configfs ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi joydev aesni_intel ablk_helper hid_generic cryptd lrw aes_x86_64 xts usbhid hid gf128mul intel_agp i2c_piix4 intel_gtt agpgart processor psmouse microcode button binfmt_misc lp parport ext4 mbcache jbd2 floppy ata_piix zlib_deflate libcrc32c [last unloaded: scst] CPU 3 Pid: 7781, comm: kworker/u:5 Tainted: G O 3.8.0-rc7-debug+ #1 Bochs Bochs RIP: 0010:[<ffffffffa027662e>] [<ffffffffa027662e>] scst_set_resp_data_len+0x17e/0x1c0 [scst] Process kworker/u:5 (pid: 7781, threadinfo ffff88002dc18000, task ffff88003d306450) Call Trace: [<ffffffffa027aa10>] scst_set_lun_not_supported_inquiry+0x140/0x400 [scst] [<ffffffffa027adbf>] scst_set_cmd_error+0xef/0x210 [scst] [<ffffffffa026aaa1>] __scst_init_cmd+0x1c1/0x250 [scst] [<ffffffffa026aefb>] scst_init_cmd+0x6b/0x320 [scst] [<ffffffffa026e914>] scst_cmd_init_done+0x124/0x5b0 [scst] [<ffffffffa0340a9e>] scst_local_queuecommand+0x1ae/0x3c0 [scst_local] [<ffffffff81323cd0>] scsi_dispatch_cmd+0x150/0x4b0 [<ffffffff8132b091>] scsi_request_fn+0x361/0x530 [<ffffffff812157b7>] __blk_run_queue+0x37/0x50 [<ffffffff81221e01>] blk_execute_rq_nowait+0x81/0x100 [<ffffffff81221fd2>] blk_execute_rq+0x152/0x200 [<ffffffff8132a75e>] scsi_execute+0xee/0x180 [<ffffffff8132b92d>] scsi_execute_req+0xbd/0x130 [<ffffffff8132d647>] scsi_probe_and_add_lun+0x257/0xe10 [<ffffffff8132ea73>] __scsi_scan_target+0x2a3/0x790 [<ffffffff8132f0ee>] scsi_scan_target+0xfe/0x110 [<ffffffffa033f81c>] scst_process_aens+0xcc/0x210 [scst_local] [<ffffffffa033fb39>] scst_aen_work_fn+0x79/0x140 [scst_local] [<ffffffff810630c8>] process_one_work+0x1a8/0x6e0 [<ffffffff81063a3f>] worker_thread+0x15f/0x3e0 [<ffffffff8106a17d>] kthread+0xed/0x100 [<ffffffff815252ac>] ret_from_fork+0x7c/0xb0 ---[ end trace b2eb71a8ecb7acf3 ]--- Signed-off-by: Bart Van Assche <bvanassche@acm.org> git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4758 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This is the SCST development repository. It contains not a single project SCST as one can think, but a number of them, which are divided as the following: 1. SCST core in scst/ subdirectory 2. Administration utility for SCST core scstadmin in scstadmin/ 3. Target drivers in own subdirectories qla2x00t/, iscsi-scst/, etc. 4. User space programs in usr/ subdirectory, like fileio_tgt. 5. Some various docs in doc/ subdirectory. Those subprojects are in most cases independent from each other, although some of them depend from the SCST core. They put in the single repository only to simplify their development, they are released independently. Thus, use "make all" only if you really need to build everything. Otherwise build only what you need, like for iSCSI-SCST: make scst scst_install iscsi iscsi_install For more information about each subproject see their README files. Vladislav Bolkhovitin <vst@vlnb.net>, http://scst.sourceforge.net