On Mon, 2013-07-01 at 16:55 -0400, Jörn Engel wrote:
On Mon, 1 July 2013 19:23:25 +, James Bottomley wrote:
On Mon, 2013-07-01 at 13:44 -0400, Jörn Engel wrote:
If a single device is bad, don't ever do a host
reset.
This isn't a tenable position. Sometimes a device looks bad
Adding Asha also.
-Original Message-
From: Mahesh Rajashekhara
Sent: Monday, July 01, 2013 11:41 AM
To: jbottom...@parallels.com; linux-scsi@vger.kernel.org
Cc: Tony Ruiz; Achim Leubner; Mahesh Rajashekhara; Kishore Babu Lukka
Subject: Linux boot Support for 4KB sector drives ?
Hello,
On 07/02/2013 03:11 PM, Kishore Babu Lukka wrote:
Adding Asha also.
-Original Message-
From: Mahesh Rajashekhara
Sent: Monday, July 01, 2013 11:41 AM
To: jbottom...@parallels.com; linux-scsi@vger.kernel.org
Cc: Tony Ruiz; Achim Leubner; Mahesh Rajashekhara; Kishore Babu Lukka
Fix a few issues related to SCSI device removal:
- Fix a race between starved list processing and device removal that
can trigger a kernel oops.
- Avoid that __scsi_remove_device() is called twice for the same SCSI
device, which also can cause a kernel oops.
- Restrict the SCSI device state
From: James Bottomley jbottom...@parallels.com
scsi_run_queue() examines all SCSI devices that are present on
the starved list. Since scsi_run_queue() unlocks the SCSI host
lock a SCSI device can get removed after it has been removed
from the starved list and before its queue is run. Protect
If something goes wrong during LUN scanning, e.g. a transport layer
failure occurs, then __scsi_remove_device() can get invoked by the
LUN scanning code for a SCSI device in state SDEV_CREATED_BLOCK and
before the SCSI device has been added to sysfs (is_visible == 0).
Make sure that even in this
Disallow the SDEV_TRANSPORT_OFFLINE to SDEV_CANCEL transition such
that no I/O is sent to devices for which the transport is offline.
Notes:
- Functions like sd_shutdown() use scsi_execute_req() and hence
set the REQ_PREEMPT flag. Such requests are passed to the LLD
queuecommand callback in
Changing the state of a SCSI device via sysfs into cancel or
deleted prevents removal of these devices by scsi_remove_host().
Hence do not allow this.
Signed-off-by: Bart Van Assche bvanass...@acm.org
Cc: Tejun Heo t...@kernel.org
Cc: James Bottomley jbottom...@parallels.com
Cc: Mike Christie
On Tue, 2013-07-02 at 15:07 +0200, Bart Van Assche wrote:
Disallow the SDEV_TRANSPORT_OFFLINE to SDEV_CANCEL transition such
that no I/O is sent to devices for which the transport is offline.
Notes:
- Functions like sd_shutdown() use scsi_execute_req() and hence
set the REQ_PREEMPT flag.
The patch set is mostly driver updates (usf, zfcp, lpfc, mpt2sas,
megaraid_sas, bfa, ipr) and a few bug fixes. Also of note is that the
Buslogic driver has been rewritten to a better coding style and 64 bit
support added. We also removed the libsas limitation on 16 bytes for
the command size
On Fri, Jun 28, 2013 at 5:02 PM, Sujit Reddy Thumma
sthu...@codeaurora.org wrote:
On 6/27/2013 4:49 PM, Santosh Y wrote:
+ spin_lock_irqsave(host-host_lock, flags);
task_req_descp = hba-utmrdl_base_addr;
task_req_descp += free_slot;
@@ -2353,38 +2387,39 @@
On Tue, 2 July 2013 06:37:05 +, James Bottomley wrote:
I don't understand what you're getting at. In a dual HBA situation,
whether the second HBA is implicated or not depends on configuration and
what the first HBA is doing. If it's just passively lost device state,
then the second HBA
On Tue, 2013-07-02 at 10:58 -0400, Jörn Engel wrote:
On Tue, 2 July 2013 06:37:05 +, James Bottomley wrote:
I don't understand what you're getting at. In a dual HBA situation,
whether the second HBA is implicated or not depends on configuration and
what the first HBA is doing. If
On Tue, 2 July 2013 16:33:40 +, James Bottomley wrote:
On Tue, 2013-07-02 at 10:58 -0400, Jörn Engel wrote:
On Tue, 2 July 2013 06:37:05 +, James Bottomley wrote:
I don't understand what you're getting at. In a dual HBA situation,
whether the second HBA is implicated or not
https://bugzilla.kernel.org/show_bug.cgi?id=59601
--- Comment #7 from Jack Hill jackh...@jackhill.us 2013-07-02 22:13:28 ---
Created an attachment (id=106661)
-- (https://bugzilla.kernel.org/attachment.cgi?id=106661)
dmesg output with packet dumps
I have attached the dmesg output after
https://bugzilla.kernel.org/show_bug.cgi?id=59601
--- Comment #8 from Jack Hill jackh...@jackhill.us 2013-07-02 22:15:42 ---
Also, I think the commit that I claimed introduced the problem after my bisect
run was the wrong one, it appears to be the last good commit. I think the one
that
https://bugzilla.kernel.org/show_bug.cgi?id=59301
Marian Marinov m...@yuhu.biz changed:
What|Removed |Added
CC||m...@yuhu.biz
---
https://bugzilla.kernel.org/show_bug.cgi?id=59301
--- Comment #3 from Marian Marinov m...@yuhu.biz 2013-07-03 00:36:39 ---
[root@BlackPearl ~]# uname -a
Linux BlackPearl.yuhu.biz 2.6.32-358.11.1.el6.i686 #1 SMP Wed Jun 12 01:01:27
UTC 2013 i686 i686 i386 GNU/Linux
[root@BlackPearl ~]# cat
+
+/**
+ * ufshcd_eh_device_reset_handler - device reset handler registered to
+ *scsi layer.
+ * @cmd - SCSI command pointer
+ *
+ * Returns SUCCESS/FAILED
+ */
+static int ufshcd_eh_device_reset_handler(struct scsi_cmnd *cmd)
+{
+ struct
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