> Den 15. sep. 2016 kl. 10.40 skrev Erik Cederstrand <e...@cederstrand.dk>:
> 
> 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);

... and the messages are gone. Is this an acceptable approach?

Erik
_______________________________________________
freebsd-emulation@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/freebsd-emulation
To unsubscribe, send any mail to "freebsd-emulation-unsubscr...@freebsd.org"
  • ioctl Erik Cederstrand
    • Re: ioctl Erik Cederstrand
    • ioctl Erik Cederstrand

Reply via email to