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2020-08-19Move boot.Config to its own packageFabricio Voznika
Updates #3494 PiperOrigin-RevId: 327548511
2020-08-05Stop profiling when the sentry exitsFabricio Voznika
Also removes `--profile-goroutine` because it's equivalent to `debug --stacks`. PiperOrigin-RevId: 325061502
2020-07-14Prepare boot.Loader to support multi-container TTYFabricio Voznika
- Combine process creation code that is shared between root and subcontainer processes - Move root container information into a struct for clarity Updates #2714 PiperOrigin-RevId: 321204798
2020-07-13Merge pull request #2672 from amscanne:shim-integratedgVisor bot
PiperOrigin-RevId: 321053634
2020-07-08Drop empty lineMichael Pratt
PiperOrigin-RevId: 320281516
2020-06-16Add runsc options to set checksum offloading statusgVisor bot
--tx-checksum-offload=<true|false> enable TX checksum offload (default: false) --rx-checksum-offload=<true|false> enable RX checksum offload (default: true) Fixes #2989 PiperOrigin-RevId: 316781309
2020-05-28Move Cleanup to its own packageFabricio Voznika
PiperOrigin-RevId: 313663382
2020-04-30FIFO QDisc implementationBhasker Hariharan
Updates #231 PiperOrigin-RevId: 309323808
2020-04-22Specify a memory file in platform.New().Andrei Vagin
PiperOrigin-RevId: 307941984
2020-04-09Don't unconditionally set --panic-signalFabricio Voznika
Closes #2393 PiperOrigin-RevId: 305793027
2020-04-07Add friendlier messages for frequently encountered errors.Ian Lewis
Issue #2270 Issue #1765 PiperOrigin-RevId: 305385436
2020-04-07Don't map the 0 uid into a sandbox user namespaceAndrei Vagin
Starting with go1.13, we can specify ambient capabilities when we execute a new process with os/exe.Cmd. PiperOrigin-RevId: 305366706
2020-04-01Automated rollback of changelist 303799678Adin Scannell
PiperOrigin-RevId: 304221302
2020-03-30kvm: handle exit reasons even under EINTR.Adin Scannell
In the case of other signals (preemption), inject a normal bounce and defer the signal until the vCPU has been returned from guest mode. PiperOrigin-RevId: 303799678
2020-03-12Kill sandbox process when parent process terminatesFabricio Voznika
When the sandbox runs in attached more, e.g. runsc do, runsc run, the sandbox lifetime is controlled by the parent process. This wasn't working in all cases because PR_GET_PDEATHSIG doesn't propagate through execve when the process changes uid/gid. So it was getting dropped when the sandbox execve's to change to user nobody. PiperOrigin-RevId: 300601247
2020-03-11runsc: Set asyncpreemptoff for the kvm platformAndrei Vagin
The asynchronous goroutine preemption is a new feature of Go 1.14. When we switched to go 1.14 (cl/297915917) in the bazel config, the kokoro syscall-kvm job started permanently failing. Lets temporary set asyncpreemptoff for the kvm platform to unblock tests. PiperOrigin-RevId: 300372387
2020-03-05Merge pull request #1951 from moricho:moricho/add-profiler-optiongVisor bot
PiperOrigin-RevId: 299233818
2020-02-28Allow to specify a separate log for GO's runtime messagesAndrei Vagin
GO's runtime calls the write system call twice to print "panic:" and "the reason of this panic", so here is a race window when other threads can print something to the log and we will see something like this: panic: log messages from another thread The reason of the panic. This confuses the syzkaller blacklist and dedup detection. It also makes the logs generally difficult to read. e.g., data races often have one side of the race, followed by a large "diagnosis" dump, finally followed by the other side of the race. PiperOrigin-RevId: 297887895
2020-02-26add profile optionmoricho
2020-02-20Initial network namespace support.gVisor bot
TCP/IP will work with netstack networking. hostinet doesn't work, and sockets will have the same behavior as it is now. Before the userspace is able to create device, the default loopback device can be used to test. /proc/net and /sys/net will still be connected to the root network stack; this is the same behavior now. Issue #1833 PiperOrigin-RevId: 296309389
2020-02-11Disallow duplicate NIC names.gVisor bot
PiperOrigin-RevId: 294500858
2020-01-27Standardize on tools directory.Adin Scannell
PiperOrigin-RevId: 291745021
2020-01-15Bump SO_SNDBUF for fdbased endpoint used by runsc.Bhasker Hariharan
Updates #231 PiperOrigin-RevId: 289897881
2020-01-09New sync package.Ian Gudger
* 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
2019-12-17Leave minimum CPU number as a constantAleksandr Razumov
Remove introduced CPUNumMin config and hard-code it as 2.
2019-12-17Add minimum CPU number and only lower CPUs on --cpu-num-from-quotaAleksandr Razumov
* Add `--cpu-num-min` flag to control minimum CPUs * Only lower CPU count * Fix comments
2019-12-15Set CPU number to CPU quotaAleksandr Razumov
When application is not cgroups-aware, it can spawn excessive threads which often defaults to CPU number. Introduce a opt-in flag that will set CPU number accordingly to CPU quota (if available). Fixes #1391
2019-12-11Enable IPv6 in runscBhasker Hariharan
Fixes #1341 PiperOrigin-RevId: 285108973
2019-12-05Fix possible race condition destroying containerFabricio Voznika
When the sandbox is destroyed, making URPC calls to destroy the container will fail. The code was checking if the sandbox was running before attempting to make the URPC call, but that is racy. PiperOrigin-RevId: 284093764
2019-10-22netstack/tcp: software segmentation offloadAndrei Vagin
Right now, we send each tcp packet separately, we call one system call per-packet. This patch allows to generate multiple tcp packets and send them by sendmmsg. The arguable part of this CL is a way how to handle multiple headers. This CL adds the next field to the Prepandable buffer. Nginx test results: Server Software: nginx/1.15.9 Server Hostname: 10.138.0.2 Server Port: 8080 Document Path: /10m.txt Document Length: 10485760 bytes w/o gso: Concurrency Level: 5 Time taken for tests: 5.491 seconds Complete requests: 100 Failed requests: 0 Total transferred: 1048600200 bytes HTML transferred: 1048576000 bytes Requests per second: 18.21 [#/sec] (mean) Time per request: 274.525 [ms] (mean) Time per request: 54.905 [ms] (mean, across all concurrent requests) Transfer rate: 186508.03 [Kbytes/sec] received sw-gso: Concurrency Level: 5 Time taken for tests: 3.852 seconds Complete requests: 100 Failed requests: 0 Total transferred: 1048600200 bytes HTML transferred: 1048576000 bytes Requests per second: 25.96 [#/sec] (mean) Time per request: 192.576 [ms] (mean) Time per request: 38.515 [ms] (mean, across all concurrent requests) Transfer rate: 265874.92 [Kbytes/sec] received w/o gso: $ ./tcp_benchmark --client --duration 15 --ideal [SUM] 0.0-15.1 sec 2.20 GBytes 1.25 Gbits/sec software gso: $ tcp_benchmark --client --duration 15 --ideal --gso $((1<<16)) --swgso [SUM] 0.0-15.1 sec 3.99 GBytes 2.26 Gbits/sec PiperOrigin-RevId: 276112677
2019-09-25Fix runsc log collection in kokoroFabricio Voznika
PiperOrigin-RevId: 271207152
2019-09-16Bring back to life features lost in recent refactorFabricio Voznika
- Sandbox logs are generated when running tests - Kokoro uploads the sandbox logs - Supports multiple parallel runs - Revive script to install locally built runsc with docker PiperOrigin-RevId: 269337274
2019-08-21Use tcpip.Subnet in tcpip.RouteTamir Duberstein
This is the first step in replacing some of the redundant types with the standard library equivalents. PiperOrigin-RevId: 264706552
2019-08-13tests: print stack traces if test failed by timeoutAndrei Vagin
PiperOrigin-RevId: 263184083
2019-08-01Set sandbox oom_score_adjIan Lewis
Set /proc/self/oom_score_adj based on oomScoreAdj specified in the OCI bundle. When new containers are added to the sandbox oom_score_adj for the sandbox and all other gofers are adjusted so that oom_score_adj is equal to the lowest oom_score_adj of all containers in the sandbox. Fixes #512 PiperOrigin-RevId: 261242725
2019-07-30Remove unused const variablesIan Lewis
PiperOrigin-RevId: 260824989
2019-07-03Avoid importing platforms from many source filesAndrei Vagin
PiperOrigin-RevId: 256494243
2019-06-26Always set SysProcAttr.Ctty to an FD in the child's FD table.Nicolas Lacasse
Go was going to change the behavior of SysProcAttr.Ctty such that it must be an FD in the *parent* FD table: https://go-review.googlesource.com/c/go/+/178919/ However, after some debate, it was decided that this change was too backwards-incompatible, and so it was reverted. https://github.com/golang/go/issues/29458 The behavior going forward is unchanged: the Ctty FD must be an FD in the *child* FD table. PiperOrigin-RevId: 255228476
2019-06-25Use different Ctty FDs based on the go version.Nicolas Lacasse
An upcoming change in Go 1.13 [1] changes the semantics of the SysProcAttr.Ctty field. Prior to the change, the FD must be an FD in the child process's FD table (aka "post-shuffle"). After the change, the FD must be an FD in the current process's FD table (aka "pre-shuffle"). To be compatible with both versions this CL introduces a new boolean "CttyFdIsPostShuffle" which indicates whether a pre- or post-shuffle FD should be provided. We use build tags to chose the correct one. 1: https://go-review.googlesource.com/c/go/+/178919/ PiperOrigin-RevId: 255015303
2019-06-24Allow to change logging options using 'runsc debug'Fabricio Voznika
New options are: runsc debug --strace=off|all|function1,function2 runsc debug --log-level=warning|info|debug runsc debug --log-packets=true|false Updates #407 PiperOrigin-RevId: 254843128
2019-06-21Delete dangling comment line.Nicolas Lacasse
This was from an old comment, which was superseded by the existing comment which is correct. PiperOrigin-RevId: 254434535
2019-06-20Drop extra characterMichael Pratt
PiperOrigin-RevId: 254237530
2019-06-18Kill sandbox process when 'runsc do' exitsFabricio Voznika
PiperOrigin-RevId: 253882115
2019-06-18Add Container/Sandbox args struct for creationFabricio Voznika
There were 3 string arguments that could be easily misplaced and it makes it easier to add new arguments, especially for Container that has dozens of callers. PiperOrigin-RevId: 253872074
2019-06-13Update canonical repository.Adin Scannell
This can be merged after: https://github.com/google/gvisor-website/pull/77 or https://github.com/google/gvisor-website/pull/78 PiperOrigin-RevId: 253132620
2019-06-12Allow 'runsc do' to run without rootFabricio Voznika
'--rootless' flag lets a non-root user execute 'runsc do'. The drawback is that the sandbox and gofer processes will run as root inside a user namespace that is mapped to the caller's user, intead of nobody. And network is defaulted to '--network=host' inside the root network namespace. On the bright side, it's very convenient for testing: runsc --rootless do ls runsc --rootless do curl www.google.com PiperOrigin-RevId: 252840970
2019-06-11Use net.HardwareAddr for FDBasedLink.LinkAddressFabricio Voznika
It prints formatted to the log. PiperOrigin-RevId: 252699551
2019-06-06Add multi-fd support to fdbased endpoint.Bhasker Hariharan
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
2019-06-03Remove 'clearStatus' option from container.Wait*PID()Fabricio Voznika
clearStatus was added to allow detached execution to wait on the exec'd process and retrieve its exit status. However, it's not currently used. Both docker and gvisor-containerd-shim wait on the "shim" process and retrieve the exit status from there. We could change gvisor-containerd-shim to use waits, but it will end up also consuming a process for the wait, which is similar to having the shim process. Closes #234 PiperOrigin-RevId: 251349490
2019-05-30Add support for collecting execution trace to runsc.Bhasker Hariharan
Updates #220 PiperOrigin-RevId: 250532302
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