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dm-writeboost-rpm's Issues

Advice setting in fstab

Hi, Kazuhisya

I found those settings is needed for a large cache(175G), as it tooks a long time for DWB init from the cache.
x-systemd.device-timeout=1200

my real setting
/dev/mapper/wbdev /data xfs noatime,nodiratime,nobarrier,auto,nofail,x-systemd.device-timeout=1200 0 0
, not so sure for nofail part, but without x-systemd.device-timeout=1200, the system won't boot. I use a safe value 1200, in my server, it' tooks 350 secs for DWB read the cache.

Quote from wiki.archlinux.org/index.php/Fstab
"x-systemd.device-timeout option. This is because the default device timeout is 90 seconds"

thread 'main' panicked at 'Couldn't parse as i32: ParseIntError { kind: Overflow }', src/libcore/result.rs:799

I'm getting the following when trying to create a device - not sure how to debug this:

# wbcreate vz /dev/sda5 /dev/nvme0n1
thread 'main' panicked at 'Couldn't parse as i32: ParseIntError { kind: Overflow }', src/libcore/result.rs:799
stack backtrace:
   1:     0x7f6acc2bb178 - std::sys::backtrace::tracing::imp::write::h6f1d53a70916b90d
                        at /builddir/build/BUILD/rustc-1.13.0/src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:42
   2:     0x7f6acc2bfccf - std::panicking::default_hook::{{closure}}::h137e876f7d3b5850
                        at /builddir/build/BUILD/rustc-1.13.0/src/libstd/panicking.rs:247
   3:     0x7f6acc2bec55 - std::panicking::default_hook::h0ac3811ec7cee78c
                        at /builddir/build/BUILD/rustc-1.13.0/src/libstd/panicking.rs:263
   4:     0x7f6acc2bf1f7 - std::panicking::rust_panic_with_hook::hc303199e04562edf
                        at /builddir/build/BUILD/rustc-1.13.0/src/libstd/panicking.rs:451
   5:     0x7f6acc2bf084 - std::panicking::begin_panic::h6ed03353807cf54d
                        at /builddir/build/BUILD/rustc-1.13.0/src/libstd/panicking.rs:413
   6:     0x7f6acc2befa9 - std::panicking::begin_panic_fmt::hc321cece241bb2f5
                        at /builddir/build/BUILD/rustc-1.13.0/src/libstd/panicking.rs:397
   7:     0x7f6acc2bef37 - rust_begin_unwind
                        at /builddir/build/BUILD/rustc-1.13.0/src/libstd/panicking.rs:373
   8:     0x7f6acc2ca67d - core::panicking::panic_fmt::h27224b181f9f037f
                        at /builddir/build/BUILD/rustc-1.13.0/src/libcore/panicking.rs:69
   9:     0x7f6acc2b1015 - core::result::unwrap_failed::h16b0af270ccf8f69
  10:     0x7f6acc2b1ce5 - lib::BlockDevice::size::ha6481c7a1ea3aa53
  11:     0x7f6acc2584dc - wbcreate::main::h1f14cd61e8afc4e1
  12:     0x7f6acc2c76fa - __rust_maybe_catch_panic
                        at /builddir/build/BUILD/rustc-1.13.0/src/libpanic_unwind/lib.rs:91
  13:     0x7f6acc2be4aa - std::rt::lang_start::h538f8960e7644c80
                        at /builddir/build/BUILD/rustc-1.13.0/src/libstd/panicking.rs:332
                        at /builddir/build/BUILD/rustc-1.13.0/src/libstd/panic.rs:311
                        at /builddir/build/BUILD/rustc-1.13.0/src/libstd/rt.rs:57
  14:     0x7f6acb656b34 - __libc_start_main
  15:     0x7f6acc255328 - <unknown>
  16:                0x0 - <unknown>

Add test using vagrant.

Packaging is done in Docker, but an operation test is difficult in Docker.
Therefore, I would like to add an operation test using Vagrant.

kmod version

It currently offer only the dkms version, but I also want to provide the kmod version in the future.

Although dkms is good, it is always required to development-packages in the environment.
In the case of kmod , this can be solved in exchange for keeping the kernel version constant.

It is better to provide both versions in the future.

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