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2020-06-05Add +checkescape annotations to kvm/ring0.Adin Scannell
This analysis also catches a potential bug, which is a split on mapPhysical. This would have led to potential guest-exit during Mapping (although this would have been handled by the now-unecessary retryInGuest loop). PiperOrigin-RevId: 315025106
2020-06-05Add stale issue & PR cleanup.Adin Scannell
PiperOrigin-RevId: 315020368
2020-06-05Drop flaky tag.Adin Scannell
PiperOrigin-RevId: 315018295
2020-06-05Use top-down allocation for pgalloc.Adin Scannell
This change has multiple small components. First, the chunk size is bumped to 1GB in order to avoid creating excessive VMAs in the Sentry, which can lead to VMA exhaustion (and hitting limits). Second, gap-tracking is added to the usage set in order to efficiently scan for available regions. Third, reclaim is moved to a simple segment set. This is done to allow the order of reclaim to align with the Allocate order (which becomes much more complex when trying to track a "max page" as opposed to "min page", so we just track explicit segments instead, which should make reclaim scanning faster anyways). Finally, the findAvailable function attempts to scan from the top-down, in order to maximize opportunities for VMA merging in applications (hopefully preventing the same VMA exhaustion that can affect the Sentry). PiperOrigin-RevId: 315009249
2020-06-05Unshare files on execAndrei Vagin
The current task can share its fdtable with a few other tasks, but after exec, this should be a completely separate process. PiperOrigin-RevId: 314999565
2020-06-05Expand syscall filters to support MSAN.Nicolas Lacasse
PiperOrigin-RevId: 314997564
2020-06-05Centralize the categories of endpoint states.Rahat Mahmood
PiperOrigin-RevId: 314996457
2020-06-05Fix error code returned due to Port exhaustion.Bhasker Hariharan
For TCP sockets gVisor incorrectly returns EAGAIN when no ephemeral ports are available to bind during a connect. Linux returns EADDRNOTAVAIL. This change fixes gVisor to return the correct code and adds a test for the same. This change also fixes a minor bug for ping sockets where connect() would fail with EINVAL unless the socket was bound first. Also added tests for testing UDP Port exhaustion and Ping socket port exhaustion. PiperOrigin-RevId: 314988525
2020-06-05Merge pull request #2879 from avagin:test-hostinetgVisor bot
PiperOrigin-RevId: 314970516
2020-06-05Merge pull request #2789 from Rajpratik71:optimization/git-cloneNicolas Lacasse
PiperOrigin-RevId: 314855924
2020-06-05Fix copylocks error about copying IPTables.Ting-Yu Wang
IPTables.connections contains a sync.RWMutex. Copying it will trigger copylocks analysis. Tested by manually enabling nogo tests. sync.RWMutex is added to IPTables for the additional race condition discovered. PiperOrigin-RevId: 314817019
2020-06-05Handle TCP segment split cases as per MSS.Mithun Iyer
- Always split segments larger than MSS. Currently, we base the segment split decision as a function of the send congestion window and MSS, which could be greater than the MSS advertised by remote. - While splitting segments, ensure the PSH flag is reset when there are segments that are queued to be sent. - With TCP_CORK, hold up segments up until MSS. Fix a bug in computing available send space before attempting to coalesce segments. Fixes #2832 PiperOrigin-RevId: 314802928
2020-06-05Remove gvisor/pkg/tmutexAndrei Vagin
It isn't used. PiperOrigin-RevId: 314775492
2020-06-05Add back gitter badge.Ian Lewis
PiperOrigin-RevId: 314630516
2020-06-04test/syscall: run hostnet tests in separate network namespacesAndrei Vagin
A few tests use hard coded port numbers, so we need to guruantee that these ports will not be used for somthing else.
2020-06-03Pass PacketBuffer as pointer.Ting-Yu Wang
Historically we've been passing PacketBuffer by shallow copying through out the stack. Right now, this is only correct as the caller would not use PacketBuffer after passing into the next layer in netstack. With new buffer management effort in gVisor/netstack, PacketBuffer will own a Buffer (to be added). Internally, both PacketBuffer and Buffer may have pointers and shallow copying shouldn't be used. Updates #2404. PiperOrigin-RevId: 314610879
2020-06-03Add test for O_TRUNCZach Koopmans
b/36576592 calls out an edge case previously not supported by HostFS. HostFS is currently being removed, meaning gVisor supports this feature. Simply add the test to open_test. PiperOrigin-RevId: 314610226
2020-06-03Fix data race on f.offset.Nicolas Lacasse
We must hold f.mu to write f.offset. PiperOrigin-RevId: 314582968
2020-06-03Add metric for startup watchdog timeoutMichael Pratt
PiperOrigin-RevId: 314570894
2020-06-03Fix test release commands to work with older GPG.Adin Scannell
The --quick-generate-key command wasn't added until recently. PiperOrigin-RevId: 314570297
2020-06-03Take Mount reference in VFS.connectLocked.Jamie Liu
Updates #179 PiperOrigin-RevId: 314563830
2020-06-03Avoid TCP segment split when out of sender window.Mithun Iyer
If the entire segment cannot be accommodated in the receiver advertised window and if there are still unacknowledged pending segments, skip splitting the segment. The segment transmit would get retried by the retransmit handler. PiperOrigin-RevId: 314538523
2020-06-02Check that two sockets with different types can't be connected to each otherAndrei Vagin
PiperOrigin-RevId: 314450191
2020-06-02Merge pull request #2855 from ridwanmsharif:ridwanmsharif/fuse-doc-editgVisor bot
PiperOrigin-RevId: 314449030
2020-06-02Fix typosMichael Pratt
PiperOrigin-RevId: 314415253
2020-06-02Merge pull request #2837 from avagin:make-startup-optiongVisor bot
PiperOrigin-RevId: 314415164
2020-06-02Add some detail to milestone #1Ridwan Sharif
This change adds more information about what needs to be done to implement `/dev/fuse`
2020-06-02make: Allow to specify bazel startup options.Andrei Vagin
And don't parse binary paths for the build target. Signed-off-by: Andrei Vagin <avagin@gmail.com>
2020-06-01Enable VFS2 to runsc syscall testsFabricio Voznika
Updates #1487 PiperOrigin-RevId: 314271995
2020-06-01More runsc changes for VFS2Fabricio Voznika
- Add /tmp handling - Apply mount options - Enable more container_test tests - Forward signals to child process when test respaws process to run as root inside namespace. Updates #1487 PiperOrigin-RevId: 314263281
2020-06-01Add inotify events for extended attributes and splice.Dean Deng
Splice, setxattr and removexattr should generate events. Note that VFS2 already generates events for extended attributes. Updates #1479. PiperOrigin-RevId: 314244261
2020-06-01Fix VFS2 gofer open(O_CREAT) reference leak.Jamie Liu
gofer.filesystem.createAndOpenChildLocked() doesn't need to take a reference on the new dentry since vfs.FileDescription.Init() will do so. PiperOrigin-RevId: 314242127
2020-06-01Handle gofer blocking opens of host named pipes in VFS2.Jamie Liu
Using tee instead of read to detect when a O_RDONLY|O_NONBLOCK pipe FD has a writer circumvents the problem of what to do with the byte read from the pipe, avoiding much of the complexity of the fdpipe package. PiperOrigin-RevId: 314216146
2020-06-01Deflake pty_test_linux.Nicolas Lacasse
PiperOrigin-RevId: 314208973
2020-06-01Include runtime goroutines in panicsMichael Pratt
SetTraceback("all") does not include all goroutines in panics (you didn't think it was that simple, did you?). It includes all _user_ goroutines; those started by the runtime (such as GC workers) are excluded. Switch to "system" to additionally include runtime goroutines, which are useful to track down bugs in the runtime itself. PiperOrigin-RevId: 314204473
2020-06-01Fix inotify test.Dean Deng
PiperOrigin-RevId: 314192441
2020-06-01Skip proc/pid/fd socket test for VFS1 only.Dean Deng
PiperOrigin-RevId: 314192359
2020-06-01Merge pull request #2689 from lubinszARM:pr_prot_nonegVisor bot
PiperOrigin-RevId: 314186752
2020-06-01Make gofer mount readonly when overlay is enabledFabricio Voznika
No writes are expected to the underlying filesystem when using --overlay. PiperOrigin-RevId: 314171457
2020-06-01Internal change.gVisor bot
PiperOrigin-RevId: 314157710
2020-06-01Move to make for tag release workflow.Adin Scannell
This will make tag & release workflows idempotent. PiperOrigin-RevId: 314154888
2020-06-01Enable TCP Receive buffer moderation in gonet and benchmark.Bhasker Hariharan
Fixes #1666 PiperOrigin-RevId: 314148384
2020-05-29Test TCP should queue RECEIVE request in SYN-SENTZeling Feng
PiperOrigin-RevId: 313878910
2020-05-29Refactor the ResolveExecutablePath logic.Nicolas Lacasse
PiperOrigin-RevId: 313871804
2020-05-29Update Go version build tagsMichael Pratt
None of the dependencies have changed in 1.15. It may be possible to simplify some of the wrappers in rawfile following 1.13, but that can come in a later change. PiperOrigin-RevId: 313863264
2020-05-29Fix copied comment mistakes.Kevin Krakauer
PiperOrigin-RevId: 313862843
2020-05-29Merge pull request #2807 from kevinGC:iptables-sourcegVisor bot
PiperOrigin-RevId: 313842690
2020-05-29Fix issue with make copy targets.Adin Scannell
PiperOrigin-RevId: 313838809
2020-05-29Update WritePacket* API to take ownership of packets to be written.Ting-Yu Wang
Updates #2404. PiperOrigin-RevId: 313834784
2020-05-29Merge pull request #2767 from mikaelmello:add-cwd-option-specgVisor bot
PiperOrigin-RevId: 313828906
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