Hi,
It has been recently reported on debian-sparc mailing list [0] that
attempting to set date using 'date -s' results in a hang. I was able to
reproduce it with 2.6.15.1 (on Ultra60, original report was for Ultra5)
and did some preliminary debugging. It appears that the hang happens in
get_compat_timespec(), called from compat_sys_clock_settime() in
kernel/compat.c. I have printed the values of pointers passed to
get_compat_timespec(), for the call which hangs the box they looked like
this:
get_compat_timespec: ts=fffff800bf7a7e80
get_compat_timespec: ts->tv_sec=fffff800bf7a7e80
get_compat_timespec: ts->tv_nsec=fffff800bf7a7e88
get_compat_timespec: cts=ffffffffef8d7cd8
get_compat_timespec: cts->tv_sec=ffffffffef8d7cd8
get_compat_timespec: cts->tv_nsec=ffffffffef8d7cdc
I've also got the debugging output from a few other (successful)
calls to get_compat_timespec(), the output then typically looks
like that:
get_compat_timespec: ts=fffff800bfbc7e80
get_compat_timespec: ts->tv_sec=fffff800bfbc7e80
get_compat_timespec: ts->tv_nsec=fffff800bfbc7e88
get_compat_timespec: cts=00000000efa23c88
get_compat_timespec: cts->tv_sec=00000000efa23c88
get_compat_timespec: cts->tv_nsec=00000000efa23c8c
Here the higher byte of the cts is set to zero, as I believe it should be
for a userspace address. In the failing case the upper byte is set to
ffffffff, which probably causes the problem. I'd appreciate any ideas on
how to resolve this issue.
[0] http://lists.debian.org/debian-sparc/2006/01/msg00129.html
Best regards,
Jurij Smakov [EMAIL PROTECTED]
Key: http://www.wooyd.org/pgpkey/ KeyID: C99E03CC
--
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]