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[Bug 96921] New: NULL pointer dereference in lpfc_bus_reset_handler+0xd4/0x240

https://bugzilla.kernel.org/show_bug.cgi?id=96921 Bug ID: 96921 Summary: NULL pointer dereference in lpfc_bus_reset_handler+0xd4/0x240 Product: SCSI Drivers Version: 2.5 Kernel Version: 3.11.10 Hardware: x86-64

Re: BUG: unable to handle kernel NULL pointer deref, bisected to 746650160

On Sun, 19 Apr 2015 18:58:41 +0200 Christoph Hellwig wrote: > This looks like a long standing bug in all three 3ware drivers to > me, that the taking the host lock around the host_busy manipulation > was hiding. > > Can you test the patch below? I'm running it right now and keeping my fingers c

RE: [PATCH 1/5] megaraid_sas : Code optimization and refactoring

>-Original Message- >From: Christoph Hellwig [mailto:h...@infradead.org] >Sent: Tuesday, April 14, 2015 11:27 AM >To: Martin K. Petersen >Cc: Sumit Saxena; linux-scsi@vger.kernel.org; the...@redhat.com; >h...@infradead.org; jbottom...@parallels.com; Kashyap Desai >Subject: Re: [PATCH 1/5] m

[PATCH RESEND 0/18] megaraid_sas : Description Patch

This patch series for megaraid_sas driver is resent with splitting one patch in to 5 different patches(patch #1 to patch #5) along with few extra sparse warnings fixes (patch#10 to patch #18). These sparse warnings fixes are also not first time submitted but resent(earlier sent by Christoph Hell

[PATCH RESEND 6/18] megaraid_sas : Use Block layer tag support for internal command indexing

megaraid_sas driver will use block layer provided tag for indexing internal MPT frames to get any unique MPT frame tied with tag. Each IO request submitted from SCSI mid layer will get associated MPT frame from MPT framepool (retrieved and return back using spinlock inside megaraid_sas driver's s

[PATCH RESEND 4/18] megaraid_sas : Move controller's queue depth calculation in adapter specific function

This patch will move controller's queue depth calculation in adapter specific functions. Signed-off-by: Kashyap Desai Signed-off-by: Sumit Saxena --- drivers/scsi/megaraid/megaraid_sas_base.c | 39 ++ drivers/scsi/megaraid/megaraid_sas_fusion.c |9 ++ 2 fil

[PATCH RESEND 5/18] megaraid_sas : Enhanced few prints

This patch will update few prints. Signed-off-by: Sumit Saxena --- drivers/scsi/megaraid/megaraid_sas_base.c | 49 ++--- 1 files changed, 24 insertions(+), 25 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_ba

[PATCH RESEND 2/18] megaraid_sas : Add separate function for refiring MFI commands

This patch will add separate function for refiring MFI commands in Fusion adapters's OCR code. Signed-off-by: Kashyap Desai Signed-off-by: Sumit Saxena --- drivers/scsi/megaraid/megaraid_sas_fusion.c | 80 +-- 1 files changed, 39 insertions(+), 41 deletions(-) diff

[PATCH RESEND 3/18] megaraid_sas : Add separate functions for building sysPD IOs and non RW LDIOs

This patch will create separate functions for sysPD IOs and non Read/Write LDIOs. Signed-off-by: Kashyap Desai Signed-off-by: Sumit Saxena --- drivers/scsi/megaraid/megaraid_sas.h| 10 +- drivers/scsi/megaraid/megaraid_sas_base.c |4 +- drivers/scsi/megaraid/megaraid_sas_fusio

[PATCH RESEND 7/18] megaraid_sas : Modify driver's meta data to reflect Avago

This patch will update module parameters and driver name inside SCSI host template to reflect Avago. Signed-off-by: Sumit Saxena --- drivers/scsi/megaraid/megaraid_sas_base.c |6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c

[PATCH RESEND 1/18] megaraid_sas : Add separate function for setting up IRQs

This patch will create separate function for setting up IRQs and enable interrupts after adapter's initialization. Signed-off-by: Kashyap Desai Signed-off-by: Sumit Saxena --- drivers/scsi/megaraid/megaraid_sas_base.c | 201 ++--- 1 files changed, 97 insertions(+), 10

[PATCH RESEND 13/18] megaraid_sas : add endianess conversions for all ones

Add noop conversions for all ones to make sparse happy. Signed-off-by: Christoph Hellwig --- drivers/scsi/megaraid/megaraid_sas_base.c |2 +- drivers/scsi/megaraid/megaraid_sas_fp.c |7 --- drivers/scsi/megaraid/megaraid_sas_fusion.c |9 + 3 files changed, 10 insert

[PATCH RESEND 16/18] megaraid_sas : add missing byte swaps to the sriov code

Signed-off-by: Christoph Hellwig --- drivers/scsi/megaraid/megaraid_sas_base.c | 46 +++- 1 files changed, 25 insertions(+), 21 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 67b9de8..e863701 100644

[PATCH RESEND 12/18] megaraid_sas : add endianess annotations

This adds endianness annotations to all data structures, and a few variables directly referencing them. Signed-off-by: Christoph Hellwig --- drivers/scsi/megaraid/megaraid_sas.h| 302 +- drivers/scsi/megaraid/megaraid_sas_base.c |2 +- drivers/scsi/megaraid

[PATCH RESEND 15/18] megaraid_sas : bytewise or should be done on native endian variables

Signed-off-by: Christoph Hellwig --- drivers/scsi/megaraid/megaraid_sas_fusion.c |4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index 7d34fe8..17ec153 100644 --- a/drivers/scsi/

[PATCH RESEND 18/18] megaraid_sas : swap whole register in megasas_register_aen

Swap the whole 32 bits we read from the hardware instead of swapping just the 16bits we care about in place later. Signed-off-by: Christoph Hellwig --- drivers/scsi/megaraid/megaraid_sas_base.c |5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/megaraid/meg

[PATCH RESEND 10/18] megaraid_sas : megasas_complete_outstanding_ioctls() can be static

drivers/scsi/megaraid/megaraid_sas_base.c:1701:6: sparse: symbol 'megasas_complete_outstanding_ioctls' was not declared. Should it be static? Signed-off-by: Fengguang Wu --- drivers/scsi/megaraid/megaraid_sas_base.c |2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drive

[PATCH RESEND 14/18] megaraid_sas : move endianess conversion into caller of megasas_get_seq_num

Converting structure fields in place is always a bad idea, and in this case by moving it into the only caller we also only have to do a single byte swap as most fields of this structure are never used. Signed-off-by: Christoph Hellwig --- drivers/scsi/megaraid/megaraid_sas_base.c | 12 ++--

[PATCH 04/14] lpfc: Correct reference counting of rport

Correct reference counting of rport Signed-off-by: Dick Kennedy Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc_disc.h| 4 +- drivers/scsi/lpfc/lpfc_els.c | 12 +++- drivers/scsi/lpfc/lpfc_hbadisc.c | 144 +++ 3 files changed, 79 insertions(

[PATCH 14/14] lpfc: Update driver version for upstream patch set 10.6.0.1.

Update driver version for upstream patch set 10.6.0.1. Signed-off-by: Dick Kennedy Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc_version.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h index c37bb

[PATCH 01/14] lpfc: The lpfc driver does not issue RFF_ID and RFT_ID in the correct sequence

The lpfc driver does not issue RFF_ID and RFT_ID in the correct sequence Signed-off-by: Dick Kennedy Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc_hbadisc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hba

[PATCH 12/14] lpfc: Fix incorrect log message reported for empty FCF record.

Fix incorrect log message reported for empty FCF record. Signed-off-by: Dick Kennedy Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc_hbadisc.c | 6 -- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c ind

[PATCH 06/14] lpfc: Add support for RDP ELS command.

Add support for RDP ELS command. Signed-off-by: Dick Kennedy Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc.h | 1 + drivers/scsi/lpfc/lpfc_crtn.h | 2 + drivers/scsi/lpfc/lpfc_els.c | 415 ++ drivers/scsi/lpfc/lpfc_hw.h | 169

[PATCH 10/14] lpfc: Fix crash in vport_delete.

Fix crash in vport_delete. We inadvertantly took the path to recreate the vport while in a driver teardown path Signed-off-by: Dick Kennedy Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc_init.c | 8 +++- drivers/scsi/lpfc/lpfc_nportdisc.c | 8 +++- drivers/scsi/lpfc/lpfc_v

[PATCH 07/14] lpfc: Correct reporting of vport state on fdisc command failure.

Correct reporting of vport state on fdisc command failure. Signed-off-by: Dick Kennedy Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc_els.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 455a5dd..60

[PATCH 11/14] lpfc: Correct loss of RSCNs during array takeaway/giveback testing.

Correct loss of RSCNs during array takeaway/giveback testing. Signed-off-by: Dick Kennedy Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc_els.c | 12 +++- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c ind

[PATCH 05/14] lpfc: Fix ABORTs WQ selection in terminate_rport_io

Fix ABORTs WQ selection in terminate_rport_io Signed-off-by: Dick Kennedy Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc_sli.c | 32 +--- 1 file changed, 21 insertions(+), 11 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli

[PATCH 02/14] lpfc: Correct loss of target discovery after cable swap.

Correct loss of target discovery after cable swap. Fix incorrect reference counting Signed-off-by: Dick Kennedy Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc_hbadisc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/sc

[PATCH 08/14] lpfc: Fix discovery issue when changing from Pt2Pt to Fabric.

Fix discovery issue when changing from Pt2Pt to Fabric. Signed-off-by: Dick Kennedy Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc_hbadisc.c | 12 +++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc

[PATCH 00/14] lpfc: Update lpfc driver to revision 10.6.0.1

This patch set updates the lpfc driver to revision 10.6.0.1 The patches were cut against scsi-misc -- james s James Smart (14): The lpfc driver does not issue RFF_ID and RFT_ID in the correct sequence Correct loss of target discovery after cable swap. Add support for ELS LCB. Corr

[PATCH 03/14] lpfc: Add support for ELS LCB.

Add support for ELS LCB. Also has a little whitespace fixing. Signed-off-by: Dick Kennedy Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc.h | 1 + drivers/scsi/lpfc/lpfc_els.c | 239 +- drivers/scsi/lpfc/lpfc_hw.h | 32 ++ drivers/s

[PATCH 13/14] lpfc: Change buffer pool empty message to miscellaneous category

Change buffer pool empty message to miscellaneous category Signed-off-by: Dick Kennedy Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc_scsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index cb73cf9..6

[PATCH 09/14] lpfc: Fix to remove IRQF_SHARED flag for MSI/MSI-X vectors.

Fix to remove IRQF_SHARED flag for MSI/MSI-X vectors. Signed-off-by: Dick Kennedy Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc_init.c | 12 ++-- 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 15

RE: [PATCH RESEND 3/18] megaraid_sas : Add separate functions for building sysPD IOs and non RW LDIOs

Please ignore only this patch of the series, this is based on a bit old repo(sent mistakenly old patch). I am sending patch the right patch(rebased against latest repo) with subject line- "[PATCH RESEND v2 3/18] megaraid_sas : Add separate functions for building sysPD IOs and non RW LDIOs". Rest of

[PATCH RESEND v2 3/18] megaraid_sas : Add separate functions for building sysPD IOs and non RW LDIOs

This patch will create separate functions for sysPD IOs and non Read/Write LDIOs. Signed-off-by: Kashyap Desai Signed-off-by: Sumit Saxena --- drivers/scsi/megaraid/megaraid_sas.h| 10 +- drivers/scsi/megaraid/megaraid_sas_base.c |4 +- drivers/scsi/megaraid/megaraid_sas_fusio

Re: [Bug 96921] New: NULL pointer dereference in lpfc_bus_reset_handler+0xd4/0x240

This is a rather old kernel, thus old driver. Lots of changes since the driver was put out in 3.11. I recommend pulling down the source kits for RHEL7 (3.10 kernel): http://www.emulex.com/downloads/emulex/drivers/linux/rhel-7-centos-7/drivers/ Under FC/FCoE driver and install script - Source Dr

[Bug 96921] NULL pointer dereference in lpfc_bus_reset_handler+0xd4/0x240

https://bugzilla.kernel.org/show_bug.cgi?id=96921 --- Comment #1 from James Smart --- This is a rather old kernel, thus old driver. Lots of changes since the driver was put out in 3.11. I recommend pulling down the source kits for RHEL7 (3.10 kernel): http://www.emulex.com/downloads/emulex/drive

[PATCH RESEND 8/18] megaraid_sas : Add release date and update driver version

This patch will upgrade the driver version and add back the release date and sysfs hook for the same. Some internal applications uses sysfs parameter for release date, so they were broken because of removal of release date from sysfs. Signed-off-by: Sumit Saxena --- drivers/scsi/megaraid/mega

[PATCH RESEND 9/18] megaraid_sas : Support for Avago's Single server High Availability product

This patch will add support for Single Server High Availability(SSHA) cluster support. Here is the short decsription of changes done to add support for SSHA- 1) Host will send system's Unique ID based on DMI_PRODUCT_UUID to firmware. 2) Toggle the devhandle in LDIO path for Remote LDs. Signed-o

[PATCH RESEND 11/18] megaraid_sas : add missing __iomem annotations

Signed-off-by: Christoph Hellwig --- drivers/scsi/megaraid/megaraid_sas.h |2 +- drivers/scsi/megaraid/megaraid_sas_base.c |9 + 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index 2

[PATCH RESEND 17/18] megaraid_sas : fix megasas_fire_cmd_fusion calling convention

The fusion HBAs don't really use the instance template like the other variants, as it branches off at a much higher level. So instead of trying to squeeze megasas_fire_cmd_fusion into the wrong calling convention call it locally with argument data types that match what is passed. Signed-off-by: C

Re: [PATCH RESEND 13/18] megaraid_sas : add endianess conversions for all ones

On Mon, 2015-04-20 at 18:04 +0530, sumit.sax...@avagotech.com wrote: > Add noop conversions for all ones to make sparse happy. > > Signed-off-by: Christoph Hellwig This isn't the right way to resend someone else's patch: it needs a From: Christoph Hellwig At the top and a signed off by you a

[Bug 90601] panic on write to 3ware raid array

https://bugzilla.kernel.org/show_bug.cgi?id=90601 --- Comment #26 from Justin Keogh --- Created attachment 174581 --> https://bugzilla.kernel.org/attachment.cgi?id=174581&action=edit dmesg for the commit that git bisect landed on, with IOMMU disabled -- You are receiving this mail because: Yo

Re: [PATCH, RFC] scsi: use host wide tags by default

On Fri, 2015-04-17 at 16:40 -0600, Jens Axboe wrote: > On 04/17/2015 04:20 PM, James Bottomley wrote: > > On Fri, 2015-04-17 at 16:07 -0600, Jens Axboe wrote: > >> On 04/17/2015 03:57 PM, James Bottomley wrote: > >>> On Fri, 2015-04-17 at 15:47 -0600, Jens Axboe wrote: > On 04/17/2015 03:46 PM

[PATCH 1/4] target: ensure se_cmd->t_prot_sg is allocated when required

Even if the device backend is initialized with protection info is enabled, some requests don't have the protection info attached for WRITE SAME command issued by block device helpers, WRITE command with WRPROTECT=0 by SG_IO ioctl, etc. So when TCM loopback fabric module is used, se_cmd->t_prot_sg

[PATCH 0/4] target: Fix several problems related to T10-PI support

This patchset aims to fix several problems related to T10-PI support. These patches can be applied on top of Sagi's "[v1] Simlify dif_verify routines and fixup fileio protection information code" patchset. Akinobu Mita (4): target: ensure se_cmd->t_prot_sg is allocated when required target: A

[PATCH 2/4] target: Abandon odd SG mapping for data transfer memory

sbc_dif_generate() and sbc_dif_verify() assume that each SG element for data transfer memory doesn't straddle the block size boundary. However, when using SG_IO ioctl, we can choose the data transfer memory which doesn't satisfy that alignment requirement. This change detects such cases and makes

[PATCH 4/4] target/file: enable WRITE SAME when protection info is enabled

Now we can generate correct PI for WRITE SAME command, so it is unnecessary to disallow WRITE SAME when protection info is enabled. Signed-off-by: Akinobu Mita Cc: Nicholas Bellinger Cc: Sagi Grimberg Cc: "Martin K. Petersen" Cc: Christoph Hellwig Cc: "James E.J. Bottomley" Cc: target-de...@

[PATCH 3/4] target: Fix sbc_dif_generate() for WRITE SAME

For WRITE SAME, data transfer memory only contains a single block but protection information is required for all blocks that are written by the command. This makes sbc_dif_generate() work for WRITE_SAME. Signed-off-by: Akinobu Mita Cc: Nicholas Bellinger Cc: Sagi Grimberg Cc: "Martin K. Peters

[PATCH 1/1] SCSI: add 1024 max sectors black list flag

From: Mike Christie This works around a issue with qnap iscsi targets not handling large IOs very well. The target returns: VPD INQUIRY: Block limits page (SBC) Maximum compare and write length: 1 blocks Optimal transfer length granularity: 1 blocks Maximum transfer length: 4294967295 blo