crystal woe

this thread trace, my program is “stuck”

 

#0 0xb778cbe0 in __kernel_vsyscall ()
#1 0xb73039b8 in __epoll_wait_nocancel ()
at ../sysdeps/unix/syscall-template.S:81
#2 0xb7421338 in ?? () from /usr/lib/i386-linux-gnu/libevent-2.0.so.5
#3 0xb740b44f in event_base_loop ()
from /usr/lib/i386-linux-gnu/libevent-2.0.so.5
#4 0x0824d14e in run_loop () at /usr/share/crystal/src/crystal/event.cr:54
#5 0x08140617 in -> () at /usr/share/crystal/src/crystal/event_loop.cr:16
#6 0x0824ea13 in run () at /usr/share/crystal/src/fiber.cr:255
#7 0x081406de in -> () at /usr/share/crystal/src/fiber.cr:47
#8 0x00000000 in ?? ()

 

meant “your program is actually stuck on a network operation, like a blocking read, but you can’t see it in that backtrace…”

see also https://forum.crystal-lang.org/t/backtrace-of-all-threads/1059

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