Date: Fri, 25 Apr 2003 16:47:50 -0600 From: drew@PoohSticks.ORG To: freebsd-hackers@freebsd.org Subject: Problems with AIO? Message-ID: <200304252247.h3PMlpd17574@revolt.poohsticks.org>
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I have a program which needs to do multiple non-blocking disk I/Os
in parallel on raw devices, have been using pthreads with wrappers that
provide a single-threaded event driven interface, and am in the process of
switching to AIO to get rid of some debugger/pthread interactions
and make some Windows guys happy because AIO looks more like their
async IO interface.
So, I look in the LINT config file and see this:
# Use real implementations of the aio_* system calls. There are numerous
# stability issues in the current aio code that make it unsuitable for
# inclusion on shell boxes.
options VFS_AIO
When I query GNATs for AIO in the single-line text fields, I get just this
2002/01/17] kern/34017 The siginfo_t passed to the signal handling routine is not filled out for AIO
and a web search only turns up this exploit
http://www.securiteam.com/exploits/6L00E0A3FC.html
Are there other bugs I should be aware of?
In this case, I'm only using aio_read() and aio_write() on raw disk devices.
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