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Bug#902493: apache2-bin: Event MPM listener thread may get blocked by SSL shutdowns

Um 08:56 Uhr am 11.03.19 schrieb Sven Hartge:

> I am going to test these package on the systems which have shown to be 
> hit by regularly this problem here, so I am confident I will be able to 
> report within two weeks if there have been any problems and if your 
> change did indeed fix the problem.

This breaks quite fast, resulting in apache2 processes at 100% CPU, doing 
nothing but:

[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)
[pid 116644] epoll_ctl(26, EPOLL_CTL_DEL, -1, 0x7fbf20fe8d50) = -1 EBADF (Bad file descriptor)

Grüße,
Sven.
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