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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