Hi Mathias, On Monday 19 September 2005 18:37, Mathias Krause wrote: > Here the server already deregisters itself at names because he got a > message with an empty buffer => means "end of transmition". > > | ... > | +++> 26.00 recv dope=00004000 (OK) 27.00 (00000000,00000000) 3966 > | ipc: 26.00 recv from 27.00 TO=INF 3965 > | ... > > Here the server starts waiting for the client to send data in a buffer > sized 4k.
4k direct IPC or indirect IPC? What message 27.00 send to 26.00 (events before 3965)? It seems that 27.00 did only send a short message containing two dwords. > > Maybe the compiler optimizes some code away. I assume that you tried the > > last version of L4Linux 2.6 -- Adam changed many things to get hybrid > > tasks working. > > It's a version a week old or so. It was very stable at this time (no > changes in CVS for some time). Ok, right. > > We cannot guarantee that the bindings are bug-free but they have been > > tested for a long time. Do you use any special compiler switches besides > > -O2? Do you use -fomit-frame-pointer? Try without. Do you use -fstrict- > > aliasing? Try with -fno-strict-aliasing as defined in l4/mk/binary.inc. > > My CFLAGS are '-W -Wall -g -O2', so this should be ok, doesn't it? You should also add -fno-strict-aliasing. See the appropriate documentation of that option. I assume that you use DICE, and with DICE you _must_ use this option so far (Ron is about to change the whole DICE compiler but that takes much time). > BTW, I haven't found any library containing a l4_ipc_whatever() function. > Are the assembler inlines the only way to make ipc calls? Yes. Therefore, L4 sources should not be compiled using -O0 or -fno-inline. Hmm, until now we did not need to compile with -O0. Frank -- ## Dept. of Computer Science, Dresden University of Technology, Germany ## ## http://os.inf.tu-dresden.de/~fm3 ##
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