https://vlnb@scst.svn.sourceforge.net/svnroot/scst/trunk
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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.
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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>!
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r3818 | vlnb | 2011-08-17 20:17:06 -0400 (Wed, 17 Aug 2011) | 3 lines
Fix for forgotten devt initialization in preparing internal commands
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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().
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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>
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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
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r3825 | bvassche | 2011-08-20 10:04:52 -0400 (Sat, 20 Aug 2011) | 1 line
documentation, spelling: Change phisical into physical
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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>
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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.
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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
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git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/2.1.0.x@3836 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Set data_out_in_data_receiving for preliminary completed commands as
well to prevent releasing them too early in iscsi_check_tm_data_wait_timeouts()
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/2.1.0.x@3548 d57e44dd-8a1f-0410-8b47-8ef2f437770f
- More timers improvements and cleanups
- iSNS server should know only about enabled targets
- Don't abort not yet received commands
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/2.1.0.x@3427 d57e44dd-8a1f-0410-8b47-8ef2f437770f
between sessions_count increment and the corresponding session creation, sessions_count is not decremented.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@3353 d57e44dd-8a1f-0410-8b47-8ef2f437770f
- Docs updated
- Returning of DIRECT contexts by scst_estimate_context() disabled (see comment in the patch why)
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@3203 d57e44dd-8a1f-0410-8b47-8ef2f437770f
