Hello All,
I am noticing the following panic on SLES 10 ( as well as Redhat 5 ).
I modified "scsi_lib.c" to print some debugging information.
Our driver is a Multipath failover module and we are using
"scsi_execute_async" API for routing IO's.
In earlier kernels we used "scsi_do_req" API.
Messag
Dachepalli, Sudhir wrote:
> scsi_req_map_sg::i=2,len=1024,data_len=3072,off=2048,PAGE_SIZE=4096,byte
> s=1024,nr_vecs=0, nr_pages=0
> if (bio_add_pc_page(q, bio, page, bytes, off) !=
> bytes) {
> printk("scsi_req_
Mike Christie wrote:
> Dachepalli, Sudhir wrote:
>> scsi_req_map_sg::i=2,len=1024,data_len=3072,off=2048,PAGE_SIZE=4096,byte
>> s=1024,nr_vecs=0, nr_pages=0
>
>
>> if (bio_add_pc_page(q, bio, page, bytes, off) !=
>> bytes) {
>>
Pete Wyckoff wrote:
> Add a slave_configure function to iSCSI TCP to remove any DMA
> alignment restriction. This permits the use of direct IO from
> arbitrary addresses.
>
> Signed-off-by: Pete Wyckoff <[EMAIL PROTECTED]>
> ---
> drivers/scsi/iscsi_tcp.c | 11 +++
> 1 files changed, 1
Mike,
I applied "patch 1" posted by Boaz Harrosh to my SLES 10 kernel.
So far IO's are running for 45 minutes which is the longest in my
numerous re-tries.
We were not aware that "scsi_execute_async" was temperory workaround.
Where is the depricated warning that you mentioned about ?
I tried to
This patchset fixes sense buffer handling bugs and scsi command leak
with cleanups to remove bio hacks.
The patchset are made over scsi-rc-fixes tree.
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From: Mike Christie <[EMAIL PROTECTED]>
scsi tgt breaks up a command into multple scatterlists
if we cannot fit all the data in one. This was because
the block rq helpers did not support large requests and
because we can get a command of any old size so it is
hard to preallocate pages for scatterl
The failure to map user-space pages leads to scsi command leak. It can
happens mostly because of user-space daemon bugs (or OOM). This patch
makes tgt just notify a LLD of the failure with sense when
blk_rq_map_user() fails.
Signed-off-by: FUJITA Tomonori <[EMAIL PROTECTED]>
Signed-off-by: Mike Ch
This patch simplify the way to notify LLDs of the command completion
and addresses the following sense buffer problems:
- can't handle both data and sense.
- forces user-space to use aligned sense buffer
tgt copies sense_data from userspace to cmnd->sense_buffer (if
necessary), maps user-space pa
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