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2019-06-20Merge 3c7448ab (automated)gVisor bot
2019-06-20Deflake TestSIGALRMToMainThread.Neel Natu
Bump up the threshold on number of SIGALRMs received by worker threads from 50 to 200. Even with the new threshold we still expect that the majority of SIGALRMs are received by the thread group leader. PiperOrigin-RevId: 254289787
2019-06-20Merge 292f70cb (automated)gVisor bot
2019-06-20Preallocate auth.NewAnonymousCredentials() in contexttest.TestContext.Jamie Liu
Otherwise every call to, say, fs.ContextCanAccessFile() in a benchmark using contexttest allocates new auth.Credentials, a new auth.UserNamespace, ... PiperOrigin-RevId: 254261051
2019-06-20Add package docs to seqfile and ramfsMichael Pratt
These are the only packages missing docs: https://godoc.org/gvisor.dev/gvisor PiperOrigin-RevId: 254261022
2019-06-20Merge 0b213507 (automated)gVisor bot
2019-06-20Unmark amutex_test as flaky.Rahat Mahmood
PiperOrigin-RevId: 254254058
2019-06-20Implement madvise(MADV_DONTFORK)Neel Natu
PiperOrigin-RevId: 254253777
2019-06-20Merge b46ec370 (automated)gVisor bot
2019-06-20Drop extra characterMichael Pratt
PiperOrigin-RevId: 254237530
2019-06-20Merge 7e495156 (automated)gVisor bot
2019-06-19Deflake SendFileTest_Shutdown.Ian Gudger
The sendfile syscall's backing doSplice contained a race with regard to blocking. If the first attempt failed with syserror.ErrWouldBlock and then the blocking file became ready before registering a waiter, we would just return the ErrWouldBlock (even if we were supposed to block). PiperOrigin-RevId: 254114432
2019-06-20Merge c2d87d5d (automated)gVisor bot
2019-06-19Mark tcp_socket test flaky (for real)Michael Pratt
The tag on the binary has no effect. It must be on the test. PiperOrigin-RevId: 254103480
2019-06-19Merge 9781128d (automated)gVisor bot
2019-06-19Deflake mount_test.Nicolas Lacasse
Inode ids are only stable across Save/Restore if we have an open FD on the inode. All tests that compare inode ids must therefor hold an FD open. PiperOrigin-RevId: 254086603
2019-06-19Merge 773423a9 (automated)gVisor bot
2019-06-19Abort loop on failureMichael Pratt
As-is, on failure these will infinite loop, resulting in test timeout instead of failure. PiperOrigin-RevId: 254074989
2019-06-19Merge 9d2efaac (automated)gVisor bot
2019-06-19Add renamed children pathNodes to target parentMichael Pratt
Otherwise future renames may miss Renamed calls. PiperOrigin-RevId: 254060946
2019-06-19Merge 29f9e4fa (automated)gVisor bot
2019-06-19fileOp{On,At} should pass the remaning symlink traversal count.Nicolas Lacasse
And methods that do more traversals should use the remaining count rather than resetting. PiperOrigin-RevId: 254041720
2019-06-19Merge f7428af9 (automated)gVisor bot
2019-06-19Add MountNamespace to task.Nicolas Lacasse
This allows tasks to have distinct mount namespace, instead of all sharing the kernel's root mount namespace. Currently, the only way for a task to get a different mount namespace than the kernel's root is by explicitly setting a different MountNamespace in CreateProcessArgs, and nothing does this (yet). In a follow-up CL, we will set CreateProcessArgs.MountNamespace when creating a new container inside runsc. Note that "MountNamespace" is a poor term for this thing. It's more like a distinct VFS tree. When we get around to adding real mount namespaces, this will need a better naem. PiperOrigin-RevId: 254009310
2019-06-19Mark tcp_socket test flaky.Neel Natu
PiperOrigin-RevId: 253997465
2019-06-19Merge ca245a42 (automated)gVisor bot
2019-06-18Attempt to fix TestPipeWritesAccumulateFabricio Voznika
Test fails because it's reading 4KB instead of the expected 64KB. Changed the test to read pipe buffer size instead of hardcode and added some logging in case the reason for failure was not pipe buffer size. PiperOrigin-RevId: 253916040
2019-06-18Merge 546b2948 (automated)gVisor bot
2019-06-18Use return values from syscalls in eventfd tests.Rahat Mahmood
PiperOrigin-RevId: 253890611
2019-06-18Merge 0e07c94d (automated)gVisor bot
2019-06-18Kill sandbox process when 'runsc do' exitsFabricio Voznika
PiperOrigin-RevId: 253882115
2019-06-18Merge bdb19b82 (automated)gVisor bot
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
2019-06-18Merge 2e137986 (automated)gVisor bot
2019-06-18Replace usage of deprecated strtoul/strtoullBrad Burlage
PiperOrigin-RevId: 253864770
2019-06-18Merge ec15fb11 (automated)gVisor bot
2019-06-18Fix PipeTest_Streaming timeoutFabricio Voznika
Test was calling Size() inside read and write loops. Size() makes 2 syscalls to return the pipe size, making the test do a lot more work than it should. PiperOrigin-RevId: 253824690
2019-06-18Merge 8ab0848c (automated)gVisor bot
2019-06-18gvisor/fs: don't update file.offset for sockets, pipes, etcAndrei Vagin
sockets, pipes and other non-seekable file descriptors don't use file.offset, so we don't need to update it. With this change, we will be able to call file operations without locking the file.mu mutex. This is already used for pipes in the splice system call. PiperOrigin-RevId: 253746644
2019-06-18gvisor/kokoro: don't modify tests names in the BUILD fileAndrei Vagin
PiperOrigin-RevId: 253746380
2019-06-18Merge 66cc0e9f (automated)gVisor bot
2019-06-17gvisor/bazel: use python2 to build runsc-debianAndrei Vagin
$ bazel build runsc:runsc-debian File ".../bazel_tools/tools/build_defs/pkg/make_deb.py", line 311, in GetFlagValue: flagvalue = flagvalue.decode('utf-8') AttributeError: 'str' object has no attribute 'decode' make_deb.py is incompatible with Python3. https://github.com/bazelbuild/bazel/issues/8443 PiperOrigin-RevId: 253691923
2019-06-17Merge 99d28637 (automated)gVisor bot
2019-06-17Internal change.gVisor bot
PiperOrigin-RevId: 253559564
2019-06-14Merge a8608c50 (automated)gVisor bot
2019-06-14Enable Receive Buffer Auto-Tuning for runsc.Bhasker Hariharan
Updates #230 PiperOrigin-RevId: 253225078
2019-06-14Merge 3d71c627 (automated)gVisor bot
2019-06-13Add support for TCP receive buffer auto tuning.Bhasker Hariharan
The implementation is similar to linux where we track the number of bytes consumed by the application to grow the receive buffer of a given TCP endpoint. This ensures that the advertised window grows at a reasonable rate to accomodate for the sender's rate and prevents large amounts of data being held in stack buffers if the application is not actively reading or not reading fast enough. The original paper that was used to implement the linux receive buffer auto- tuning is available @ https://public.lanl.gov/radiant/pubs/drs/lacsi2001.pdf NOTE: Linux does not implement DRS as defined in that paper, it's just a good reference to understand the solution space. Updates #230 PiperOrigin-RevId: 253168283
2019-06-14Merge 3e9b8ecb (automated)gVisor bot
2019-06-13Plumb context through more layers of filesytem.Ian Gudger
All functions which allocate objects containing AtomicRefCounts will soon need a context. PiperOrigin-RevId: 253147709
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