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Vladislav Bolkhovitin
2e0329c2d2
https://vlnb@scst.svn.sourceforge.net/svnroot/scst/trunk ........ r3799 | vlnb | 2011-08-04 22:07:35 -0400 (Thu, 04 Aug 2011) | 37 lines Modified patch from Bart Van Assche <bvanassche@acm.org>: The range unmapped by the scst_vdisk handler when processing an UNMAP command is not correct. The patch below fixes that and also prevents that the following kernel crash can be triggered on the target: Call Trace: [<ffffffffa06b5350>] ? srpt_post_send+0xd0/0x140 [ib_srpt] [<ffffffff811bb595>] ? cpumask_next_and+0x35/0x50 [<ffffffff810e6296>] shmem_truncate_range+0x7a6/0xa50 [<ffffffffa0612ceb>] ? scst_get_buf_full+0x16b/0x270 [scst] [<ffffffffa069beb6>] vdisk_exec_unmap+0x1d6/0x4b0 [scst_vdisk] [<ffffffff813c0cb6>] ? _raw_spin_unlock+0x16/0x40 [<ffffffffa069dadc>] vdisk_do_job+0x5fc/0x950 [scst_vdisk] [<ffffffffa0605402>] scst_do_real_exec+0xb2/0x400 [scst] [<ffffffffa06076a7>] scst_exec+0xd7/0x240 [scst] [<ffffffffa06079b6>] scst_send_for_exec+0x1a6/0x2f0 [scst] [<ffffffffa06086f8>] scst_process_active_cmd+0x4f8/0x790 [scst] [<ffffffffa0608a29>] scst_do_job_active+0x99/0x170 [scst] [<ffffffffa060a3da>] scst_cmd_thread+0x15a/0x3b0 [scst] [<ffffffff81047470>] ? default_wake_function+0x0/0x20 [<ffffffffa060a280>] ? scst_cmd_thread+0x0/0x3b0 [scst] [<ffffffff8106dc26>] kthread+0x96/0xa0 [<ffffffff81003cd4>] kernel_thread_helper+0x4/0x10 [<ffffffff8103db01>] ? finish_task_switch+0x51/0xb0 [<ffffffff813c0c7c>] ? _raw_spin_unlock_irq+0x1c/0x40 [<ffffffff813c18b1>] ? restore_args+0x0/0x30 [<ffffffff8106db90>] ? kthread+0x0/0xa0 [<ffffffff81003cd0>] ? kernel_thread_helper+0x0/0x10 Invoking truncate_range() with an end len that is not page-size aligned triggers it. In other words, with a block size that is below PAGE_CACHE_SIZE some UNMAP commands could trigger a kernel bug. I think it's better to print an error message and to skip an UNMAP command instead of triggering a kernel oops. ........ r3800 | vlnb | 2011-08-08 21:04:57 -0400 (Mon, 08 Aug 2011) | 3 lines Update of SCST_Gentoo_HOWTO.txt to SCST 2.x. Thanks to Willem Boterenbrood <w.boterenbrood@gmail.com>! ........ r3818 | vlnb | 2011-08-17 20:17:06 -0400 (Wed, 17 Aug 2011) | 3 lines Fix for forgotten devt initialization in preparing internal commands ........ r3819 | vlnb | 2011-08-17 20:27:12 -0400 (Wed, 17 Aug 2011) | 6 lines Disable accepting initiator mode commands if initiator mode not enabled for 23xx- chips as well as suggested by ido benda <idombd@gmail.com>. This is extension of r3261 to qla2x00_queuecommand(). ........ r3823 | vlnb | 2011-08-19 19:20:22 -0400 (Fri, 19 Aug 2011) | 3 lines Update of SCST_Gentoo_HOWTO.txt from Willem Boterenbrood <w.boterenbrood@gmail.com> ........ r3824 | vlnb | 2011-08-19 19:55:31 -0400 (Fri, 19 Aug 2011) | 3 lines Fix for one more forgotten initialization in preparing internal commands spotted by kordex@gmail.com ........ r3825 | bvassche | 2011-08-20 10:04:52 -0400 (Sat, 20 Aug 2011) | 1 line documentation, spelling: Change phisical into physical ........ r3828 | bvassche | 2011-08-22 15:19:56 -0400 (Mon, 22 Aug 2011) | 11 lines scst: Avoid triggering BUG() on uniprocessor systems On uniprocessor systems with lock debugging disabled spin_is_locked() returns false. Disable the spin_is_locked() checks if CONFIG_SMP has not been defined. Reported-by: Frank <frank@debian-nas.org> Signed-off-by: Dave Carroll <dcarroll@astekcorp.com> Cc: scst-devel <scst-devel@lists.sourceforge.net> Cc: Frank <frank@debian-nas.org> ........ r3831 | vlnb | 2011-08-25 14:08:45 -0400 (Thu, 25 Aug 2011) | 3 lines Fix possible crash on rel_tgt_id set on transports without is_target_enabled() defined. ........ r3833 | vlnb | 2011-09-01 14:22:27 -0400 (Thu, 01 Sep 2011) | 5 lines - Fix possible deadlock between vdev_sysfs_process_get_filename() and vdisk_del_device() - Cleanups ........ git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/2.1.0.x@3836 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