Am 17.07.2012 11:12, schrieb Mark Morgan Lloyd:
Ludo Brands wrote:
We only support 32 bit SPARC, and there we split a 64 bit load into two
32 bit loads. dbl, assuming it points to a double, should
point to a 64
bit-aligned memory location though (depending on the cpu, 32 bit
alignment may be sufficient, but better be safe than sorry).
I'll try to test against 2.7.1 later in the day, although as I've
said Linux is OK. Is the if FIntegerDatetimes then something
Solaris-specific Ludo?)?
No, the value is read from the server and depends on how the server was
compiled. Run 'show integer_datetimes;' in psql or whatever client you
are
using to see the value. Pqconnection has detected that it is 'on' on
your server. You can check with
above command to see if the server agrees with that.
With integer_datetimes on the datetime is returned as an int64 with the
number of microseconds since 2000-01-01 00:00:00 UTC, hence the dbl^
:= pint64(buffer)^/1000000;
Dbl is a Pdouble, so the alignment problem could indeed come from
there. The
buffer returned by the driver is correct because just before you have
pint64(buffer)^ := BEtoN(pint64(CurrBuff)^); CurrBuff being the pointer
returned.
Now, you are getting a SIGSEGV, not a SIGBUS which is what you would
get for
an alignment problem.
This problem no longer exists in 2.7.1 (21919 + Reinier's
solarisdbtrunk2.diff).
Then it might be good if you report this in Mantis together with
Reinier's patch so that it isn't forgotten.
Regards,
Sven
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