just tested, iet works on
Linux dopteron.localdomain 2.6.16-rc5 #1 SMP PREEMPT Wed Mar 8 14:11:41
EST 2006 i686 athlon i386 GNU/Linux
so i would think this is a mips specific issue.
ming
On Wed, 2006-03-08 at 20:41 +0100, Frederic Temporelli wrote:
> Hi,
>
>
> Here's the bypass (really ugly, just skip the following cmd test and
> directly go to the vfs_ioctl call later in the func).
> And yes, I'm using a 64bits kernel and app is 32 bits...
>
> = 8< ==========================
> --- compat.c.git 2006-03-08 20:31:27.000000000 +0100
> +++ compat.c 2006-03-08 20:30:10.000000000 +0100
> @@ -400,6 +400,7 @@ asmlinkage long compat_sys_ioctl(unsigne
> } else {
> static int count;
>
> + goto do_ioctl;
> if (++count <= 50)
> compat_ioctl_error(filp, fd, cmd, arg);
> error = -EINVAL;
> = 8< ==========================
>
> Regards
> --
> Fred
>
>
> Ming Zhang a écrit :
>
> >thanks for the catch.
> >
> >could u show us how u did that bypass? thanks.
> >
> >ming
> >
> >
> >
> >On Wed, 2006-03-08 at 19:13 +0100, Frederic Temporelli wrote:
> >
> >
> >>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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