Enables the syntax intN[start:end, alignment] for integer ranges. For
instance, int32[0:10, 2] represents even 32-bit numbers between 0 and 10
included. With this change, two NEED tags in syscall descriptions can be
addressed.
Signed-off-by: Paul Chaignon <paul.chaignon@orange.com>
Implement logic described in #1054:
- close bugs that happened a lot and then stopped faster
- close bugs in non-final reporting with different period
- allow closing bugs that happened only on 1 manager with different period
Fixes#1054
Update #533
This patch update tca_polices by adding new polices TCA_POLICE_RATE64
and TCA_POLICE_PEAKRATE64
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Update #533
In this patch I added new classes: cake, cbs, fq_codel, mq, mqprio,
multiq, netem, prio, red, sfb, sfq, skbprio, taprio, tbf, ingress,
clsact.
These classes has Qdisc_class_ops in kernel, but no netlink parameters.
So we can testing them by just calling them directly.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Update #533
Don't know why I didn't add tcm__pad in tcm_info structure
at the begining. But let's fix it now.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
If syzkaller gets to /dev/{mem,kmem,ioport}, it will destroy the machine.
It managed to do so with some mount's, chdir's and bogus file names.
These are not needed for fuzzing, so completely disabling them is
the simplest and the most reliable option.
Other packages should use ast.Recursive and ast.PostRecursive to ensure
the root node is visited as well.
Signed-off-by: Paul Chaignon <paul.chaignon@orange.com>
Without this fix, the compiler throws an error 'template argument BASE is
not used' for the following typedef.
type templ1[BASE] BASE
foo(a ptr[in, templ1[int64]])
Signed-off-by: Paul Chaignon <paul.chaignon@orange.com>
When generating a USB config, disable USB symbols that are disabled in the
base config, as they might have been enabled when some of the dependecies
got enabled.
All callers of EnvForCommit need the compiler path,
so move this logic into EnvForCommit to avoid duplication.
Also simplifies tests because test impl can now return
an empty compiler (which should be unused).
(note: incomplete change)
Refactor existing code as follows:
* Move reusable test utility functions from git_repo_test.go to
pkg/vcs/test_util.go and make them exported.
* Split Run() into Run()+runImpl().
* Change type of bisect.go:env.inst to `instance.BuilderTester`.
Change usage inside syz-testbuild/testbuild.go accordingly.
* Move most of linux.PreviousReleaseTags() into vcs/git.go as
git.previousReleaseTags().
* Allow build.CompilerIdentity to be mocked.
Introduce the following changes:
* instance.BuilderTester is an interface with methods
BuildSyzkaller()
BuildKernel()
Test()
NewEnv() now returns this interface.
* type testEnv implements instance.BuilderTester.
* type testBuilder implements builder interface. Add a entry into table
inside pkg/build/build.go:getBuilder() to return testBuilder object.
The problem with task hung reports is that they manifest at random victim stacks,
rather at the root cause stack. E.g. if there is something wrong with RCU subsystem,
we are getting hangs all over the kernel on all synchronize_* calls.
So before resotring to the common logic of skipping some common frames,
we look for 2 common buckets: hangs on synchronize_rcu and hangs on rtnl_lock
and group these together.
The usage of current create-image.sh:
```
./create-image.sh -d=stretch -f=minimal --add-perf
The options are in the following:
-d, --distribution Set on which debian distribution to create
-f, --feature Check what packages to install in the image, options are minimal, full
-s, --seek Image size (MB), default 2048 (2G)
-p, --add-perf Add perf support with this option enabled
The default image size may too small (2G) in some debugging scenarios, so change it to configurable.
