On Thu, Sep 15, 2016 at 01:37:22PM +0200, Erik Cederstrand wrote:
> 
> > Den 15. sep. 2016 kl. 10.40 skrev Erik Cederstrand <[email protected]>:
> > 
> > Hi folks,
> > 
> > I managed to get a 64-bit Oracle instantclient running under 64-bit Linux 
> > so I can connect to an Oracle database using the Oracle client "sqlplus".
> > 
> > Now, whenever I run sqlplus, I get this message in /var/log/messages:
> > 
> >   kernel: linux: pid 92000 (sqlplus): ioctl fd=3, cmd=0x1268 ('',104) is 
> > not implemented
> > 
> > 0x1268 is BLKSSZGET according to linux_ioctl.h.
> > 
> > The message is harmless as sqlplus seems to be working correctly, but I 
> > would like to get rid of it and learn new things along the way.
> > 
> > I think the message comes from this code: 
> > https://github.com/freebsd/freebsd/blob/master/sys/compat/linux/linux_ioctl.c#L3606
> > 
> > Apparently, the Linux compat code does not implement the ioctl() system 
> > call at all. Is this a deliberate choice?
> 
> Well, that was a pretty bad analysis. I found that the linux_ioctl_disk() 
> method handles disk ioctl's, but not BLKSSZGET, so here's a patch (I still 
> barely know what I'm doing):
> 
> --- sys/compat/linux/linux_ioctl.c.orig       2016-09-15 13:09:59.747254000 
> +0200
> +++ sys/compat/linux/linux_ioctl.c    2016-09-15 13:15:59.382396000 +0200
> @@ -296,6 +296,15 @@
>               return (copyout(&sectorsize, (void *)args->arg,
>                   sizeof(sectorsize)));
>               break;
> +     case LINUX_BLKSSZGET:
> +             error = fo_ioctl(fp, DIOCGSECTORSIZE,
> +                 (caddr_t)&sectorsize, td->td_ucred, td);
> +             fdrop(fp, td);
> +             if (error)
> +                     return (error);
> +             return (copyout(&sectorsize, (void *)args->arg,
> +                 sizeof(sectorsize)));
> +             break;
>       }
>       fdrop(fp, td);
>       return (ENOIOCTL);
>

looks ok to me, thanx 
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  • ioctl Erik Cederstrand
    • Re: ioctl Erik Cederstrand
      • Re: ioctl Chagin Dmitry
    • ioctl Erik Cederstrand

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