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2020-09-09Merge release-20200818.0-141-gf3172c3a1 (automated)gVisor bot
2020-09-09Don't sched_setaffinity in ptrace platform.Jamie Liu
PiperOrigin-RevId: 330777900
2020-09-09Merge release-20200818.0-140-gfb281eea7 (automated)gVisor bot
2020-09-09Merge release-20200818.0-139-g26439f9a4 (automated)gVisor bot
2020-09-09Merge release-20200818.0-138-g00479af51 (automated)gVisor bot
2020-09-09Merge release-20200818.0-137-g8d3551da6 (automated)gVisor bot
2020-09-08Implement synthetic mountpoints for kernfs.Jamie Liu
PiperOrigin-RevId: 330629897
2020-09-09Merge release-20200818.0-136-gbca4d99a4 (automated)gVisor bot
2020-09-08[vfs] overlayfs: Fix socket tests.Ayush Ranjan
- BindSocketThenOpen test was expecting the incorrect error when opening a socket. Fixed that. - VirtualFilesystem.BindEndpointAt should not require pop.Path.Begin.Ok() because the filesystem implementations do not need to walk to the parent dentry. This check also exists for MknodAt, MkdirAt, RmdirAt, SymlinkAt and UnlinkAt but those filesystem implementations also need to walk to the parent denty. So that check is valid. Added some syscall tests to test this. PiperOrigin-RevId: 330625220
2020-09-08Merge release-20200818.0-135-ga17d083f3 (automated)gVisor bot
2020-09-08Add check for both child and childMerkle ENOENTgVisor bot
The check in verity walk returns error for non ENOENT cases, and all ENOENT results should be checked. This case was missing. PiperOrigin-RevId: 330604771
2020-09-08Merge release-20200818.0-134-g360f1535c (automated)gVisor bot
2020-09-08Implement ioctl with enable veritygVisor bot
ioctl with FS_IOC_ENABLE_VERITY is added to verity file system to enable a file as verity file. For a file, a Merkle tree is built with its data. For a directory, a Merkle tree is built with the root hashes of its children. PiperOrigin-RevId: 330604368
2020-09-08Merge release-20200818.0-133-g682c0edcd (automated)gVisor bot
2020-09-08[vfs] overlayfs: decref VD when not using it.Ayush Ranjan
overlay/filesystem.go:lookupLocked() did not DecRef the VD on some error paths when it would not end up saving or using the VD. PiperOrigin-RevId: 330589742
2020-09-08Merge release-20200818.0-132-gc8f1ce288 (automated)gVisor bot
2020-09-08Honor readonly flag for root mountFabricio Voznika
Updates #1487 PiperOrigin-RevId: 330580699
2020-09-08Merge release-20200818.0-131-g284e6811e (automated)gVisor bot
2020-09-08Merge release-20200818.0-130-ga3b87a0ce (automated)gVisor bot
2020-09-08Increase resolution timeout for TestCacheResolutionSam Balana
Fixes pkg/tcpip/stack:stack_test flake experienced while running TestCacheResolution with gotsan. This occurs when the test-runner takes longer than the resolution timeout to call linkAddrCache.get. In this test we don't care about the resolution timeout, so set it to the maximum and rely on test-runner timeouts to avoid deadlocks. PiperOrigin-RevId: 330566250
2020-09-08Merge pull request #3856 from btw616:fix/issue-3855gVisor bot
PiperOrigin-RevId: 330565414
2020-09-08Merge release-20200818.0-128-g38cdb0579 (automated)gVisor bot
2020-09-08Fix data race in tcp.GetSockOpt.Bhasker Hariharan
e.ID can't be read without holding e.mu. GetSockOpt was reading e.ID when looking up OriginalDst without holding e.mu. PiperOrigin-RevId: 330562293
2020-09-08Merge release-20200818.0-127-gd35f07b36 (automated)gVisor bot
2020-09-08Improve type safety for transport protocol optionsGhanan Gowripalan
The existing implementation for TransportProtocol.{Set}Option take arguments of an empty interface type which all types (implicitly) implement; any type may be passed to the functions. This change introduces marker interfaces for transport protocol options that may be set or queried which transport protocol option types implement to ensure that invalid types are caught at compile time. Different interfaces are used to allow the compiler to enforce read-only or set-only socket options. RELNOTES: n/a PiperOrigin-RevId: 330559811
2020-09-08Merge release-20200818.0-126-gd84ec6c42 (automated)gVisor bot
2020-09-08[vfs] Capitalize x in the {Get/Set/Remove/List}xattr functions.Ayush Ranjan
PiperOrigin-RevId: 330554450
2020-09-08Fix the use after nil check on args.MountNamespaceVFS2Tiwei Bie
The args.MountNamespaceVFS2 is used again after the nil check, instead, mntnsVFS2 which holds the expected reference should be used. This patch fixes this issue. Fixes: #3855 Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
2020-09-08Merge release-20200818.0-125-gfada564c8 (automated)gVisor bot
2020-09-04Merge release-20200818.0-124-g2202812e0 (automated)gVisor bot
2020-09-04Simplify FD handling for container start/execFabricio Voznika
VFS1 and VFS2 host FDs have different dupping behavior, making error prone to code for both. Change the contract so that FDs are released as they are used, so the caller can simple defer a block that closes all remaining files. This also addresses handling of partial failures. With this fix, more VFS2 tests can be enabled. Updates #1487 PiperOrigin-RevId: 330112266
2020-09-04Merge release-20200818.0-123-gc564293b6 (automated)gVisor bot
2020-09-03Adjust input file offset when sendfile only completes a partial write.Dean Deng
Fixes #3779. PiperOrigin-RevId: 330057268
2020-09-04Merge release-20200818.0-122-gb6d6a120d (automated)gVisor bot
2020-09-04Merge release-20200818.0-121-g805861ca3 (automated)gVisor bot
2020-09-03Use fine-grained mutex for stack.cleanupEndpoints.Bhasker Hariharan
stack.cleanupEndpoints is protected by the stack.mu but that can cause contention as the stack mutex is already acquired in a lot of hot paths during new endpoint creation /cleanup etc. Moving this to a fine grained mutex should reduce contention on the stack.mu. PiperOrigin-RevId: 330026151
2020-09-03Merge release-20200818.0-120-g76e51c8b9 (automated)gVisor bot
2020-09-03Use atomic.Value for Stack.tcpProbeFunc.Jamie Liu
b/166980357#comment56 shows: - 837 goroutines blocked in: gvisor/pkg/sync/sync.(*RWMutex).Lock gvisor/pkg/tcpip/stack/stack.(*Stack).StartTransportEndpointCleanup gvisor/pkg/tcpip/transport/tcp/tcp.(*endpoint).cleanupLocked gvisor/pkg/tcpip/transport/tcp/tcp.(*endpoint).completeWorkerLocked gvisor/pkg/tcpip/transport/tcp/tcp.(*endpoint).protocolMainLoop.func1 gvisor/pkg/tcpip/transport/tcp/tcp.(*endpoint).protocolMainLoop - 695 goroutines blocked in: gvisor/pkg/sync/sync.(*RWMutex).Lock gvisor/pkg/tcpip/stack/stack.(*Stack).CompleteTransportEndpointCleanup gvisor/pkg/tcpip/transport/tcp/tcp.(*endpoint).cleanupLocked gvisor/pkg/tcpip/transport/tcp/tcp.(*endpoint).completeWorkerLocked gvisor/pkg/tcpip/transport/tcp/tcp.(*endpoint).protocolMainLoop.func1 gvisor/pkg/tcpip/transport/tcp/tcp.(*endpoint).protocolMainLoop - 3882 goroutines blocked in: gvisor/pkg/sync/sync.(*RWMutex).Lock gvisor/pkg/tcpip/stack/stack.(*Stack).GetTCPProbe gvisor/pkg/tcpip/transport/tcp/tcp.newEndpoint gvisor/pkg/tcpip/transport/tcp/tcp.(*protocol).NewEndpoint gvisor/pkg/tcpip/stack/stack.(*Stack).NewEndpoint All of these are contending on Stack.mu. Stack.StartTransportEndpointCleanup() and Stack.CompleteTransportEndpointCleanup() insert/delete TransportEndpoints in a map (Stack.cleanupEndpoints), and the former also does endpoint unregistration while holding Stack.mu, so it's not immediately clear how feasible it is to replace the map with a mutex-less implementation or how much doing so would help. However, Stack.GetTCPProbe() just reads a function object (Stack.tcpProbeFunc) that is almost always nil (as far as I can tell, Stack.AddTCPProbe() is only called in tests), and it's called for every new TCP endpoint. So converting it to an atomic.Value should significantly reduce contention on Stack.mu, improving TCP endpoint creation latency and allowing TCP endpoint cleanup to proceed. PiperOrigin-RevId: 330004140
2020-09-03Merge release-20200818.0-119-g30c20df76 (automated)gVisor bot
2020-09-03Merge release-20200818.0-118-g319ce6736 (automated)gVisor bot
2020-09-03Merge release-20200818.0-117-ga8c174c04 (automated)gVisor bot
2020-09-03Merge release-20200818.0-116-g86c1ae095 (automated)gVisor bot
2020-09-02Add support to run packetimpact tests against FuchsiaZeling Feng
blaze test <test_name>_fuchsia_test will run the corresponding packetimpact test against fuchsia. PiperOrigin-RevId: 329835290
2020-09-03Merge release-20200818.0-115-gb69352245 (automated)gVisor bot
2020-09-02Fix Accept to not return error for sockets in accept queue.Bhasker Hariharan
Accept on gVisor will return an error if a socket in the accept queue was closed before Accept() was called. Linux will return the new fd even if the returned socket is already closed by the peer say due to a RST being sent by the peer. This seems to be intentional in linux more details on the github issue. Fixes #3780 PiperOrigin-RevId: 329828404
2020-09-03Merge release-20200818.0-114-g1fec86193 (automated)gVisor bot
2020-09-02[vfs] Implement xattr for overlayfs.Ayush Ranjan
PiperOrigin-RevId: 329825497
2020-09-02Merge release-20200818.0-113-g0ca0d8e01 (automated)gVisor bot
2020-09-02[vfs] Fix error handling in overlayfs OpenAt.Ayush Ranjan
Updates #1199 PiperOrigin-RevId: 329802274
2020-09-02Merge release-20200818.0-112-g5c6601120 (automated)gVisor bot
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