Re: Lemote Yeeloong observations

[christos%astron.com@localhost (Christos Zoulas)]

In article <20120511071141.GC28474%mail.duskware.de@localhost>,
Martin Husemann  <martin%duskware.de@localhost> wrote:
>On Fri, May 11, 2012 at 12:52:49AM -0500, John D. Baker wrote:
>> Searching for EINVAL revealed calls to netbsd32_ioctl() with commands
>> "CLOCKCTL_CLOCK_SETTIME",  "CLOCKCTL_SETTIMEOFDAY", and "_IOWR" as
>> failing in this way.  A few lines earlier, ioctl() calls with command
>> "CLOCKCTL_NTP_ADJTIME" fails with EFAULT.  Alignment issues?
>
>This seems strange, the address should be that of a global variable in ntpd,
>and thus should be properly aligned.
>
>Could you instrument the code in src/sys/compat/netbsd32/netbsd32_time.c
>and see if the EFAULT comes from the return (error); in line 155 and print
>the pointer value?
>
>Something like:
>
>       if ((error = copyin(SCARG_P32(uap, tp), &ntv32, sizeof(ntv32)))) {
>               printf("error %d pointer %p\n", error, (void*)SCARG_P32(uap, 
> tp));
>               return error;
>       }

The issue is that the ioctls are not being translated.

christos