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bug#24201: 25.1.50; TLS connections sometimes hang


From: Paul Eggert
Subject: bug#24201: 25.1.50; TLS connections sometimes hang
Date: Mon, 19 Feb 2018 09:56:00 -0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0

Lars Ingebrigtsen wrote:
#0  pthread_sigmask (how=0, newmask=<optimized out>, oldmask=0x7fffffff8a60)
     at ../sysdeps/unix/sysv/linux/pthread_sigmask.c:50

When you say that Emacs "hangs" surely you don't mean that the call to pthread_sigmask is hanging. So, can we assume that Emacs is busy-waiting for something? Is the CPU pegged? What does the busy-wait loop look like?





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