The new --gdb option can be used when KERNELDIR (and optionally
MODULEDIR) are set and we therefore run UML. It runs the entire
VM under the debugger, with a script to load the right modules
into gdb so you can debug easily.
This needs CONFIG_GDB_SCRIPTS=y to be used in the kernel build.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Since the kernel actually passes the command-line parameters
as environment variables to the init script, there's no need
to parse them out of /proc/cmdline.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
It can be useful to configure a different module directory, so you don't
need to install the kernel modules in the host /lib/modules/ location.
Allow configuring it in the config file.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
git has started rejecting repositories owned by other users and refusing
to run the "git rev-parse HEAD" command in this type of cases. That
resulted in issues with the VM testing model where the VM is practically
running everything as root while the host is a normal development
environment and likely a non-root user owned files.
Fix this by fetching the commitid on the host and pass it to the VM so
that no git operations need to be run within the VM itself.
Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
If we use user-mode-linux, we have time-travel, and then the --long
argument doesn't really make a difference, so just assume that's the
case.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This is more efficient since we can now start only the necessary number
of VMs instead of always forcing all VMs to start with one second delay.
This can also control the starting delay by keeping at most two VMs
starting at a time instead of using the hardcoded one second wait for
each consecutive VM.
Signed-off-by: Jouni Malinen <j@w1.fi>
When the serial ports are set into raw mode on stdio (fd:0,fd:1)
then Ctrl-C is sort of passed through, but not effective. Request
non-raw mode to avoid that and let us cancel test execution with
Ctrl-C properly (both in parallel-vm.py and vm-run.sh cases).
Note that this requires a currently out-of-tree patch, but so
does the virtual time. If the patch is not applied, the command
line argument is ignored.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This speeds up test execution significantly by removing unnecessary
waiting for things to happen since the kernel log is allowed to jump
forward whenever there is nothing to do.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This allows UML builds to be used in running user mode without having to
run the full x86 kernel in virtual machine.
Signed-off-by: Jouni Malinen <j@w1.fi>
If telnetd is installed and --telnet <port> is passed on the
vm-run.sh command line, start a telnet server (directly connected
to bash, no login) inside the VM(s) to be able to look into them
when something is wrong. Use a user network in qemu with a single
host forward from the specified port for this, listening only on
'localhost'.
Please note that this provides unauthenticated access to the guest
system from anything that can open a TCP connection on the host system.
The guess system does have access to reading all files on the host that
the user account running kvm has access to (and even write access if the
default ROTAG ,readonly parameter is cleared). In other words, this
option should not be used on any multiuser systems where kvm is run
under user accounts that are not dedicated for testing purposes (i.e.,
do not have access to any files that should not be readable to
everyone).
This needs CONFIG_VIRTIO_NET=y in the guest kernel.
For parallel-vm.py, the --telnet argument specifies the base port
and each VM index (0, 1, ...) is added to it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Recently, qemu/seabios grew an annoying console/terminal reset,
which also causes my terminal to be left in a state where long
lines don't work well and less gets confused because of this.
Suppress this by suppressing all output from qemu before a new
magic string printed from inside.sh.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This is useful when running a test multiple times, looking at
log output etc. to not have to pick out the right directory
each and every time.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
mac80211_hwsim module typically dumps a lot of details into the kernel
message buffer. While it's probably okay in a dedicated VM, it's way too
chatty in other setups.
The kernel allows fine-tuning logging via the dynamic debugging
facility. Let's enable all logging locations in the mac80211_hwsim
module so that we don't loose debugging output when the kernel adopts
the dynamic debug mechanism for the driver.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
The script is currently limited by the maximum kernel command line
length and if that's exceeded the kernel panics at boot. Fix this by
writing the arguments to a file and reading it in the VM.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If /tmp has a relatively small size limit, or multiple people run the
tests on the same machine, using the same output directory can easily
cause problems.
Make the test framework honor the new HWSIM_TEST_LOG_DIR environment
variable to make it easier to avoid those problems.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
It looks like the 128M default memory size for the hwsim test setup was
not large enough to cover all the needs anymore. Some of the test cases
using tshark could hit OOM with that size. Increase the default
allocation to 192M to avoid this type of issues.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Wait one second between each kvm start to avoid hitting large number of
processes trying to start in parallel. This allows the VMs to be started
more efficiently for parallel-vm.py runs with large number of VMs.
Signed-off-by: Jouni Malinen <j@w1.fi>
Now there is only one set of commands to maintain. The separate reports
for individual components have not been of much use in the past, so they
are dropped for now.
Signed-off-by: Jouni Malinen <j@w1.fi>
This allows code coverage report to be generated must faster with the
help of parallel VMs executing test cases.
Signed-off-by: Jouni Malinen <j@w1.fi>
This avoids possible mismatches in directory and log file timestamps if
the UNIX timestamp (seconds) changes during the startup sequence.
Signed-off-by: Jouni Malinen <j@w1.fi>
This was currently breaking parallel-run.*, as it was passing
--split num/num parameters (intended for rnu-tests.py)
to vm-run.sh which broke the --codecov and --timewrap options.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
When loading the hwsim module, disable support_p2p_device by default.
This will also become the default in the kernel, but until then it
makes sure it's not turned on by default.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
"parallel-vm.sh <number of VMs> [arguments..]" can now be used to run
multiple VMs in parallel to speed up full test cycle significantly. In
addition, the "--split srv/total" argument used in this design would
also make it possible to split this to multiple servers to speed up
testing.
Signed-off-by: Jouni Malinen <j@w1.fi>
This improves accuracy of the code coverage reports with hostapd-as-AS
and hlr_auc_gw getting analyzed separately.
Signed-off-by: Jouni Malinen <j@w1.fi>
To test the code under the influence of time jumps, add the option
(--timewarp) to the VM tests to reset the clock all the time, which
makes the wall clock time jump speed up 20x, causing gettimeofday()
to be unreliable for timeout calculations.
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
The vm-config in the subdirectory is less useful as it
will get removed by "git clean" and similar, so read a
config file from ~/.wpas-vm-config in addition.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Use a more robust design for collecting the gcov logs from the case
where test cases are run within a virtual machine. This generates a
writable-from-vm build tree for each component separately so that the
lcov and gcov can easily find the matching source code and data files.
In addition, prepare the reports automatically at the end of the
vm-run.sh --codecov execution.
Signed-hostap: Jouni Malinen <j@w1.fi>
Add a CHANNELS configuration to the script running the VM
that can be added to the vm-config file to allow running
the tests with hwsim devices supporting more than a single
channel.
Eventually, with the (hopefully) upcoming dynamic work in
mac80211_hwsim, this might go away entirely, but for now
this allows testing more code paths.
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
Rather than just having KERNELDIR, allow setting KERNEL directly.
Also remove the -s option that prevents running multiple machines
at the same time, but add a KVMARGS= variable that can be used to
restore that if needed.
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
Instead of running on the host, it can be useful to run in a
VM, particularly to test kernel rather than userspace changes,
so add a few scripts that allow doing so easily.
The basic idea is that the VM kernel is the same architecture
as the host kernel, so the host's root filesystem can be used
(in read-only mode) to run everything. Only a log filesystem
is mounted read-write and will get all the test output.
The kernel console output is collected to a special 'console'
file in the logs directory and kernel crashes are detected.
Signed-hostap: Johannes Berg <johannes.berg@intel.com>
