semget() crash

David Stacey drstacey@tiscali.co.uk
Mon Jun 10 21:24:00 GMT 2013


Please find attached a short test programme derived from the semaphore 
handling code in Poco. The test crashes in the call to semget(), 
reporting 'Bad system call (core dumped)'. I am using the latest 32-bit 
snapshot (2013-06-08).

The test programme runs correctly under Fedora 18 x64.

BTW, the man page for ftok(3) states that the second parameter 
('proj_id') must be non-zero. Contrary to this, Poco uses zero for 
'proj_id'. This is easy enough to patch, but does anyone know the effect 
of using zero here? If there's no good reason for it then I'll raise a 
ticket with Poco and get it changed.

Many thanks in advance for looking at this problem,

Dave.

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