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2021-04-05Merge release-20210322.0-46-g88f198c2a (automated)gVisor bot
2021-04-05Allow default control values to be set for cgroupfs.Rahat Mahmood
PiperOrigin-RevId: 366891806
2021-04-05Merge release-20210322.0-43-ge21a71bff (automated)gVisor bot
2021-04-05Allow user mount for verity fsChong Cai
Allow user mounting a verity fs on an existing mount by specifying mount flags root_hash and lower_path. PiperOrigin-RevId: 366843846
2021-04-05Fail tests when container returns non-zero statusFabricio Voznika
PiperOrigin-RevId: 366839955
2021-04-03Merge release-20210322.0-38-g932c8abd0 (automated)gVisor bot
2021-04-02Implement cgroupfs.Rahat Mahmood
A skeleton implementation of cgroupfs. It supports trivial cpu and memory controllers with no support for hierarchies. PiperOrigin-RevId: 366561126
2021-04-03Merge release-20210322.0-36-g491b106d6 (automated)gVisor bot
2021-04-02Merge release-20210322.0-34-gcc762235c (automated)gVisor bot
2021-04-02Internal change.gVisor bot
PiperOrigin-RevId: 366462448
2021-04-01Merge release-20210322.0-33-gb2ea37401 (automated)gVisor bot
2021-04-01Internal changesBhasker Hariharan
PiperOrigin-RevId: 366344805
2021-03-29Merge release-20210322.0-29-g8a2f7e716 (automated)gVisor bot
2021-03-29[syserror] Split usermem packageZach Koopmans
Split usermem package to help remove syserror dependency in go_marshal. New hostarch package contains code not dependent on syserror. PiperOrigin-RevId: 365651233
2021-03-29Merge release-20210322.0-28-gb125afba4 (automated)gVisor bot
2021-03-29Merge pull request #5728 from zhlhahaha:2091gVisor bot
PiperOrigin-RevId: 365613394
2021-03-29[perf] Reduce contention in ptrace.threadPool.lookupOrCreate().Ayush Ranjan
lookupOrCreate is called from subprocess.switchToApp() and subprocess.syscall(). lookupOrCreate() looks for a thread already created for the current TID. If a thread exists (common case), it returns immediately. Otherwise it creates a new one. This change switches to using a sync.RWMutex. The initial thread existence lookup is now done only with the read lock. So multiple successful lookups can occur concurrently. Only when a new thread is created will it acquire the lock for writing and update the map (which is not the common case). Discovered in mutex profiles from the various ptrace benchmarks. Example: https://gvisor.dev/profile/gvisor-buildkite/fd14bfad-b30f-44dc-859b-80ebac50beb4/843827db-da50-4dc9-a2ea-ecf734dde2d5/tmp/profile/ptrace/BenchmarkFio/operation.write/blockSize.4K/filesystem.tmpfs/benchmarks/fio/mutex.pprof/flamegraph PiperOrigin-RevId: 365612094
2021-03-26Merge release-20210315.0-28-gfbec65fc3 (automated)gVisor bot
2021-03-25Use seqfile.SeqHandles correctly in VFS1 /proc/net/.Jamie Liu
Before this change: ``` $ docker run --runtime=runsc --rm -it -v ~/tmp:/hosttmp ubuntu:focal /hosttmp/issue5732 --bytes1=128 --bytes2=1024 #1: read(128) = 128 #2: read(1024) = EOF $ docker run --runtime=runsc-vfs2 --rm -it -v ~/tmp:/hosttmp ubuntu:focal /hosttmp/issue5732 --bytes1=128 --bytes2=1024 #1: read(128) = 128 #2: read(1024) = 256 ``` After this change: ``` $ docker run --runtime=runsc --rm -it -v ~/tmp:/hosttmp ubuntu:focal /hosttmp/issue5732 --bytes1=128 --bytes2=1024 #1: read(128) = 128 #2: read(1024) = 256 $ docker run --runtime=runsc-vfs2 --rm -it -v ~/tmp:/hosttmp ubuntu:focal /hosttmp/issue5732 --bytes1=128 --bytes2=1024 #1: read(128) = 128 #2: read(1024) = 256 ``` Fixes #5732 PiperOrigin-RevId: 365178386
2021-03-25Merge release-20210315.0-27-g79bc446fa (automated)gVisor bot
2021-03-25Lock TaskSet mutex for writing in ptraceClone().Jamie Liu
This is necessary since ptraceClone() mutates tracer.ptraceTracees. PiperOrigin-RevId: 365152396
2021-03-25Fix comments errorHoward Zhang
Signed-off-by: Howard Zhang <howard.zhang@arm.com>
2021-03-25Fix nogo test errorHoward Zhang
Signed-off-by: Howard Zhang <howard.zhang@arm.com>
2021-03-24Merge release-20210315.0-23-ge7ca2a51a (automated)gVisor bot
2021-03-24Add POLLRDNORM/POLLWRNORM support.Bhasker Hariharan
On Linux these are meant to be equivalent to POLLIN/POLLOUT. Rather than hack these on in sys_poll etc it felt cleaner to just cleanup the call sites to notify for both events. This is what linux does as well. Fixes #5544 PiperOrigin-RevId: 364859977
2021-03-24Fix data race in fdbased when accessing fanoutID.Bhasker Hariharan
PiperOrigin-RevId: 364859173
2021-03-24Merge release-20210315.0-21-gec0aa657e (automated)gVisor bot
2021-03-24Unexpose immutable fields in stack.RouteNick Brown
This change sets the inner `routeInfo` struct to be a named private member and replaces direct access with access through getters. Note that direct access to the fields of `routeInfo` is still possible through the `RouteInfo` struct. Fixes #4902 PiperOrigin-RevId: 364822872
2021-03-24Merge release-20210315.0-20-g8ee4a3f6d (automated)gVisor bot
2021-03-23Merge pull request #5677 from avagin:kvm-mmiogVisor bot
PiperOrigin-RevId: 364728696
2021-03-24Merge release-20210315.0-18-g56a9a1397 (automated)gVisor bot
2021-03-23Move the code that manages floating-point state to a separate packageAndrei Vagin
This change is inspired by Adin's cl/355256448. PiperOrigin-RevId: 364695931
2021-03-23Merge release-20210315.0-16-g92374e519 (automated)gVisor bot
2021-03-23setgid directory support in goferfsKevin Krakauer
Also adds support for clearing the setuid bit when appropriate (writing, truncating, changing size, changing UID, or changing GID). VFS2 only. PiperOrigin-RevId: 364661835
2021-03-23Merge release-20210315.0-15-gacb4c6288 (automated)gVisor bot
2021-03-23Use constant (TestInitialSequenceNumber) instead of integer (789) in tests.Nayana Bidari
PiperOrigin-RevId: 364596526
2021-03-23Merge release-20210315.0-11-g409a11445 (automated)gVisor bot
2021-03-23Explicitly allow martian loopback packetsGhanan Gowripalan
...instead of opting out of them. Loopback traffic should be stack-local but gVisor has some clients that depend on the ability to receive loopback traffic that originated from outside of the stack. Because of this, we guard this change behind IP protocol options. A previous change provided the facility to deny these martian loopback packets but this change requires client to opt-in to accepting martian loopback packets as accepting martian loopback packets are not meant to be accepted, as per RFC 1122 section 3.2.1.3.g: (g) { 127, <any> } Internal host loopback address. Addresses of this form MUST NOT appear outside a host. PiperOrigin-RevId: 364581174
2021-03-23Merge release-20210315.0-9-gc0bd71c5a (automated)gVisor bot
2021-03-22Fix logs for packetimpact tests cleanupZeling Feng
- Don't cleanup containers in Network.Cleanup, otherwise containers will be killed and removed several times. - Don't set AutoRemove for containers. This will prevent the confusing 'removal already in progress' messages. Fixes #3795 PiperOrigin-RevId: 364404414
2021-03-22Merge release-20210315.0-7-ga073d7697 (automated)gVisor bot
2021-03-22Return tcpip.Error from (*Stack).GetMainNICAddressGhanan Gowripalan
PiperOrigin-RevId: 364381970
2021-03-22Merge release-20210315.0-6-g6bd2c6ce7 (automated)gVisor bot
2021-03-22Merge release-20210315.0-5-gb428fd02e (automated)gVisor bot
2021-03-22Avoid calling sync on each write in writethrough mode.Nicolas Lacasse
PiperOrigin-RevId: 364370595
2021-03-18Merge release-20210309.0-41-g7fac7e32f (automated)gVisor bot
2021-03-18Translate syserror when validating partial IO errorsFabricio Voznika
syserror allows packages to register translators for errors. These translators should be called prior to checking if the error is valid, otherwise it may not account for possible errors that can be returned from different packages, e.g. safecopy.BusError => syserror.EFAULT. Second attempt, it passes tests now :-) PiperOrigin-RevId: 363714508
2021-03-17Do not use martian loopback packets in testsGhanan Gowripalan
Transport demuxer and UDP tests should not use a loopback address as the source address for packets injected into the stack as martian loopback packets will be dropped in a later change. PiperOrigin-RevId: 363479681
2021-03-17Merge release-20210309.0-37-g4065604e1 (automated)gVisor bot
2021-03-17Drop loopback traffic from outside of the stackGhanan Gowripalan
Loopback traffic should be stack-local but gVisor has some clients that depend on the ability to receive loopback traffic that originated from outside of the stack. Because of this, we guard this change behind IP protocol options. Test: integration_test.TestExternalLoopbackTraffic PiperOrigin-RevId: 363461242
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