linux-kernel - Need help in writing Layered driver in Linux

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <B57F74065657FA4F85110272279E461B01745A13@BGEEXC07.asiapacific.cpqcorp.net>
Date:	Wed, 8 Nov 2006 12:42:46 +0530
From:	"Palakodeti, Srinivasa Rao (STSD)" <palakodetisrinivasa.rao@...com>
To:	<linux-kernel@...r.kernel.org>
Subject:  Need help in writing Layered driver in Linux

Hi,

I have attached InterSbull.c. I have sbull and sbull1 block drivers with
major number 254, 253 respectively. 
In InterSbull.c, in init_module, I am replacing sbull's ( major 254  )
make_request_fn with my kti_make_request_fn. Everything is going fine
with this. 

But when I want to write same data to other sbull1 (major number 253 ).
I am getting kernel panic. When I do an I/O to sbull device ( major
number 254 ). In WRITE, in kti_make_request_fn I am using brw_kiovec to
send I/O to 253 device

Could you help me what can be the issue in this? Any help is
appreciated.

Thanks and regards,
Srinivas

Download attachment "InterSbull.c" of type "application/octet-stream" (3927 bytes)