Mike Christie wrote:
Yanggun wrote:
Hi,
i am currently using linux kernel version 2.6.15-rc5 on x86 with Promise
SATAII150 TX2Plus(250G SATA HDD Disk x 2).
But, SATA HDD disk does not become. program execute result of "fdisk
/dev/sda" is "Unable to read /dev/sda".
Work well in linux kernel version 2.6.13.2.
Do not act below since change as result that do debugging.
"[SCSI] use scatter lists for all block pc requests and
simplify hw handlers"
-
http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=392160335c798bbe94ab3aae6ea0c85d32b81bbc
Test and tried your bug patch, but, result is same.
I do not think my patch was meant to address your issue :(
By result that I do debugging, if queuecommand () of LLD layer returns
result properly, but execute scsi_probe_lun () -> scsi_execute_req ()
-> blk_execute_rq () by thing which is not realized to proc/scsi/scsi
come out . after execute blk_execute_rq(), then cmd->buffer,
cmd->request_buffer is NULL. so, "Model:" in scsi_add_lun() ->
print_inquiry() comes out NULL.
I am not sure I understand correctly, but I do not think the analysis
above is completely correct. scsi_execute_req gets a buffer passed to it
so it should not matter if those fields are set to NULL when
scsi_execute_req completes as long as something has been copied to the
buffer passed into scsi_execute_req.
--------------
Kernel version: 2.6.15-rc5
SATA Controller: Promise SATAII150 TX2Plus
SATA HDD: Western Digital 250G x 2
SATA Driver:
http://www.promise.com/support/download/download2_eng.asp?productID=126&category=all&os=100#
I am not too familar with SATA. Is this driver in mainline and does it
use libata? Which module is it?
I downloaded SATAII150_300_Series_Linux_src of that site and it looks
like it should not assume some commands are scatterlist based and some
are use_sg=0. The driver needs to be updated.
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