Control: forwarded -1 https://github.com/petergoldstein/dalli/issues/1034
Hi,
I tracked this down to this MWE:
require 'dalli'
dc = Dalli::Client.new('localhost:11211', { namespace: "app_v1" })
dc.flush_all
which fails on armel with:
/usr/share/rubygems-integration/all/gems/dalli-3.2.8/lib/dalli/socket.rb:133:in
`setsockopt': Invalid argument - setsockopt(2) (Errno::EINVAL)
from
/usr/share/rubygems-integration/all/gems/dalli-3.2.8/lib/dalli/socket.rb:133:in
`init_socket_options'
from
/usr/share/rubygems-integration/all/gems/dalli-3.2.8/lib/dalli/socket.rb:94:in
`block in open'
from
/usr/share/rubygems-integration/all/gems/dalli-3.2.8/lib/dalli/socket.rb:110:in
`create_socket_with_timeout'
from
/usr/share/rubygems-integration/all/gems/dalli-3.2.8/lib/dalli/socket.rb:92:in
`open'
[...]
or using strace:
[pid 59410] setsockopt(5, SOL_TCP, TCP_NODELAY, [1], 4) = 0
[pid 59410] setsockopt(5, SOL_SOCKET, SO_KEEPALIVE, [1], 4) = 0
[pid 59410] setsockopt(5, SOL_SOCKET, SO_RCVTIMEO_NEW, "\1\0\0\0\0\0\0\0", 8) =
-1 EINVAL (Invalid argument)
The relevant upstream change is:
https://github.com/petergoldstein/dalli/pull/1025/commits/1a7af32f0ccd4a20c4e2d0b4f2adc1ca29046e48
And specifically this code:
seconds, fractional = options[:socket_timeout].divmod(1)
timeval = [seconds, fractional * 1_000_000].pack('l_2')
sock.setsockopt(::Socket::SOL_SOCKET, ::Socket::SO_RCVTIMEO, timeval)
sock.setsockopt(::Socket::SOL_SOCKET, ::Socket::SO_SNDTIMEO, timeval)
The problem here is that the packing of seconds, microseconds into a
struct timeval is architecture-dependent, and cannot be assumed to be
solved by pack('l_2').
I opened https://github.com/petergoldstein/dalli/issues/1034
Lucas
