This helps debugging `runsc` issues involving RPC overload, and helps
connect multiple `runsc` invocations' logs to their corresponding handling
in the Sentry.
PiperOrigin-RevId: 733123936
It is an idea of running codespell as part of our presubmit checks.
Before enabling it for new changes, let's fix what it has found.
Signed-off-by: Andrei Vagin <avagin@gmail.com>
Earlier the limit was 32. If a user has >28 bind mounts, somehow,
then Sandbox.StartSubContainer() fails because it needs to donate
3 stdio FDs, 1 root gofer mount FD and 29+ bind mount FDs. And
runsc fails fatally when donating more than maxFiles FDs in 1 URPC.
Some users were hitting this limit. 128 ought to be enough for
everyone. If not, we can revisit later and maybe make this
configurable and handle unlimited bind mounts by making multiple
sendmsg(2) calls in Sandbox.StartSubContainer(). For now, let's
avoid that complexity.
Fixes#7725
PiperOrigin-RevId: 463744396
The typical sequence of calls to start a container looks like this
ct, err := container.New(conf, containerArgs)
defer ct.Destroy()
ct.Start(conf)
ws, err := ct.Wait()
For the root container, ct.Destroy() kills the sandbox process. This
doesn't look like a right wait to stop it. For example, all ongoing rpc
calls are aborted in this case. If everything is going alright, we can
just wait and it will exit itself.
Reported-by: syzbot+084fca334720887441e7@syzkaller.appspotmail.com
Signed-off-by: Andrei Vagin <avagin@gmail.com>
This includes minor fix-ups:
* Handle SIGTERM in runsc debug, to exit gracefully.
* Fix cmd.debug.go opening all profiles as RDONLY.
* Fix the test name in fio_test.go, and encode the block size in the test.
PiperOrigin-RevId: 350205718
This allows for a model of profiling when you can start collection, and
it will terminate when the sandbox terminates. Without this synchronous
call, it is effectively impossible to collect length blocking and mutex
profiles.
PiperOrigin-RevId: 349483418
* Rename syncutil to sync.
* Add aliases to sync types.
* Replace existing usage of standard library sync package.
This will make it easier to swap out synchronization primitives. For example,
this will allow us to use primitives from github.com/sasha-s/go-deadlock to
check for lock ordering violations.
Updates #1472
PiperOrigin-RevId: 289033387
Addresses obvious typos, in the documentation only.
COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/443 from Pixep:fix/documentation-spelling 4d0688164eafaf0b3010e5f4824b35d1e7176d65
PiperOrigin-RevId: 255477779
This allows an fdbased endpoint to have multiple underlying fd's from which
packets can be read and dispatched/written to.
This should allow for higher throughput as well as better scalability of the
network stack as number of connections increases.
Updates #231
PiperOrigin-RevId: 251852825
Based on the guidelines at
https://opensource.google.com/docs/releasing/authors/.
1. $ rg -l "Google LLC" | xargs sed -i 's/Google LLC.*/The gVisor Authors./'
2. Manual fixup of "Google Inc" references.
3. Add AUTHORS file. Authors may request to be added to this file.
4. Point netstack AUTHORS to gVisor AUTHORS. Drop CONTRIBUTORS.
Fixes#209
PiperOrigin-RevId: 245823212
Change-Id: I64530b24ad021a7d683137459cafc510f5ee1de9
Prevents URPC FDs from being closed mid-call, especially if they
are used as raw FDs.
PiperOrigin-RevId: 233087955
Change-Id: I815a2ff32cc5f03774605aef0b35a32862f8e633
Nothing reads them and they can simply get stale.
Generated with:
$ sed -i "s/licenses(\(.*\)).*/licenses(\1)/" **/BUILD
PiperOrigin-RevId: 231818945
Change-Id: Ibc3f9838546b7e94f13f217060d31f4ada9d4bf0
This change also adds extensive testing to the p9 package via mocks. The sanity
checks and type checks are moved from the gofer into the core package, where
they can be more easily validated.
PiperOrigin-RevId: 218296768
Change-Id: I4fc3c326e7bf1e0e140a454cbacbcc6fd617ab55
When multiple containers run inside a sentry, each container has its own root
filesystem and set of mounts. Containers are also added after sentry boot rather
than all configured and known at boot time.
The fsgofer needs to be able to serve the root filesystem of each container.
Thus, it must be possible to add filesystems after the fsgofer has already
started.
This change:
* Creates a URPC endpoint within the gofer process that listens for requests to
serve new content.
* Enables the sentry, when starting a new container, to add the new container's
filesystem.
* Mounts those new filesystems at separate roots within the sentry.
PiperOrigin-RevId: 208903248
Change-Id: Ifa91ec9c8caf5f2f0a9eead83c4a57090ce92068
We have been unnecessarily creating too many savable types implicitly.
PiperOrigin-RevId: 206334201
Change-Id: Idc5a3a14bfb7ee125c4f2bb2b1c53164e46f29a8
Etienne PerotandgVisor bot
Ayush RanjanandgVisor bot
Andrei Vagin
Adin ScannellandgVisor bot
Kevin KrakauerandgVisor bot
Ian GudgerandgVisor bot
Michael PrattandgVisor bot
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