Re: [Iscsitarget-devel] RE: mips kernel 2.6.16rc1 + IET 0.4.13 - /dev/ietctl - ioctl unknown command

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Hi,

Sorry, I'm not able to build 64 bits user space binaries (Debian distro, where all binaries are 32 bits... ld is reporting errors when I try to link using o64 and n64 ABIs, seems that only the kernel can be 64 bits).

But don't care, on my side it was just to do a test to IET.
I'll try do test it at work on IA64...
--
Fred

Ming Zhang a écrit :

thanks. i guess this is the reason.

@Frederic, could you confirm this? also if you compile u user space as
64bit, it should be ok then.

ming

On Wed, 2006-03-08 at 10:18 -0800, Shanthi Kiran Pendyala (skiranp)
wrote:
I have seen such error messages when userspace app is built in 32bit
mode
And kernel is built in 64 bit mode. Does this apply to your setup ?

The way to fix this is to register a ioctl32 conversion routine in
The driver. Google is your friend..

Thx
Kiran
-----Original Message-----
From: linux-mips-bounce@xxxxxxxxxxxxxx [mailto:linux-mips-bounce@xxxxxxxxxxxxxx] On Behalf Of Frederic Temporelli
Sent: Wednesday, March 08, 2006 10:13 AM
To: iet-dev; linux-mips
Subject: mips kernel 2.6.16rc1 + IET 0.4.13 - /dev/ietctl - ioctl unknown command

Hello,

I would like to report an ioctl issue using IET 0.4.13 (iSCSI target) and kernel 2.6.16-rc1, running on mips / SGI O2

The driver seems to load nicely, but there was no way to do ioctl on the userspace device /dev/ietctl.
I got such messages in syslog:
Mar 4 16:47:16 o2 kernel: [4303606.514000] ioctl32(ietd:3448): Unknown cmd fd(4) cmd(81046900){01} arg(7f942ab0) on /dev/ietctl

=> I've been able to resolve the issue by adding a by-pass (goto
do_ioctl) in kernel compat_sys_ioctl function (fs/compat.c) and all is working fine now.

I don't know if such issue is related to mips only or is due to changes
2.6.16 kernel
I've also did some tries on x86 with linux 2.6.15.5, all was working fine without needing to change anything in the kernel.

Did somebody report such issue with IET and recent kernel ?
May some people from linux-mips tell if such issue is mips specific ?

Best regards.
--
Fred


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