[ please excuse the poor formatting due to email client ]
> From: Jeff Trawick [mailto:trawick@xxxxxxxxx]
>
> On Tue, Jul 15, 2014 at 4:55 PM, Tomlinson, Stuart <st024y@xxxxxxxxxxxx> wrote:
> Hello,
>
> We have experienced this warning/error a few times:
> [Thu Jul 03 20:17:15 2014] [warn] (4)Interrupted system call: Failed to acquire SSL session cache lock
>
> After this has occurred, the Apache ErrorLog is flooded with these errors:
> [Thu Jul 03 20:17:57 2014] [error] shmcb_subcache_retrieve internal error
>
> It looks like there is a bug in the APR library. It doesn't handle EINTR ("Interrupted system call") in the POSIX semaphore implementation.
Thanks for the superfast feedback. Should I file a bug for this? If so, should it be filed for "Apache httpd-2" product or "APR" ?
> SSLMutex sem
>
> Use "SSLMutex sysvsem" instead.
Are there any expected negative impacts from using "sysvsem" instead of "sem" (which I understand defaults to "posixsem" - described in the documentation as "elegant", whereas "sysvsem" is merely "somewhat elegant")?
Regards,
Stu Tomlinson.
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