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From Yann Ylavic <>
Subject Re: [Bug 60956] Event MPM listener thread may get blocked by SSL shutdowns
Date Fri, 30 Jun 2017 11:33:44 GMT
On Fri, Jun 30, 2017 at 1:20 PM, Ruediger Pluem <> wrote:
> On 06/30/2017 12:18 PM, Yann Ylavic wrote:
>> IMHO mod_ssl shoudn't (BIO_)flush unconditionally in
>> modssl_smart_shutdown(), only in the "abortive" mode of
>> ssl_filter_io_shutdown().
> I think the issue starts before that.
> ap_prep_lingering_close calls the pre_close_connection hook and modules that are registered
> to this hook can perform all sort of long lasting blocking operations there.
> While it can be argued that this would be a bug in the module I think the only safe way
> is to have the whole start_lingering_close_nonblocking being executed by a worker thread.

Correct, that'd be much simpler/safer indeed.
We need a new SHUTDOWN state then, right?


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