[CalendarServer-dev] Exception in recvfd --was: Re: continuing work on FreeBSD ports
Axel.Rau at Chaos1.DE
Thu Feb 21 09:30:58 PST 2013
Am 21.02.2013 um 01:15 schrieb glyph at twistedmatrix.com:
> Your patch also appears to introduce its own segfault. I can't see exactly where yet, but 'char ddfile' makes me suspicious; variables like this should always be [PATH_MAX].
My pathname has a maximum of 21 bytes.
> You also have no error-checking on fopen().
I'm now handling fopen(3) errors (see below).
> I can't tell what's going on in the trace you sent, because the 'ps' output at the top has PIDs which don't correspond to the PIDs below. It also appears to be a trace only of the master, not of the worker.
I have prepared a gziped tar archive here
debug.trace contains a complete truss trace with the modified patch (sendmsg.diff), showing all worker processes.
This version hangs after the accept() instead of segfaulting.
ps.txt shows ps + commands corresponding to the trace.
I think the message 'truss: can not attach to target process: No such process' can be ignored, as all processes appear in the trace.
debug.dat.* have the debug output from the patched sendmsg.c.
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