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2020-10-14Merge release-20200928.0-115-ga7b7b7b98 (automated)gVisor bot
2020-10-14Fix shm reference leak.Dean Deng
All shm segments in an IPC namespace should be released once that namespace is destroyed. Add reference counting to IPCNamespace so that once the last task with a reference on it exits, we can trigger a destructor that will clean up all shm segments that have not been explicitly freed by the application. PiperOrigin-RevId: 337032977
2020-10-13Merge release-20200928.0-102-g432963dd2 (automated)gVisor bot
2020-10-13[vfs2] Don't take reference in Task.MountNamespaceVFS2 and MountNamespace.Root.Dean Deng
This fixes reference leaks related to accidentally forgetting to DecRef() after calling one or the other. PiperOrigin-RevId: 336918922
2020-10-13Merge release-20200928.0-98-gfc7df5322 (automated)gVisor bot
2020-10-13Don't leak VDSO mappings.Dean Deng
PiperOrigin-RevId: 336822021
2020-10-12Merge release-20200928.0-91-gd861cd5f1 (automated)gVisor bot
2020-10-12[vfs2] Don't leak disconnected mounts.Dean Deng
PiperOrigin-RevId: 336694658
2020-10-09Merge release-20200928.0-81-g6bbf66227 (automated)gVisor bot
2020-10-09Reduce the cost of sysinfo(2).Jamie Liu
- sysinfo(2) does not actually require a fine-grained breakdown of memory usage. Accordingly, instead of calling pgalloc.MemoryFile.UpdateUsage() to update the sentry's fine-grained memory accounting snapshot, just use pgalloc.MemoryFile.TotalUsage() (which is a single fstat(), and therefore far cheaper). - Use the number of threads in the root PID namespace (i.e. globally) rather than in the task's PID namespace for consistency with Linux (which just reads global variable nr_threads), and add a new method to kernel.PIDNamespace to allow this to be read directly from an underlying map rather than requiring the allocation and population of an intermediate slice. PiperOrigin-RevId: 336353100
2020-10-09Merge release-20200928.0-78-g743327817 (automated)gVisor bot
2020-10-08Merge release-20200928.0-66-ga55bd73d4 (automated)gVisor bot
2020-10-06Merge release-20200928.0-49-ga1df7f2ed (automated)gVisor bot
2020-10-05Simplify nil assignment in kcov.Dean Deng
PiperOrigin-RevId: 335548610
2020-10-03Merge release-20200921.0-107-ge0aaf40e3 (automated)gVisor bot
2020-10-03Fix kcov enabling and disabling procedures.Dean Deng
- When the KCOV_ENABLE_TRACE ioctl is called with the trace kind KCOV_TRACE_PC, the kcov mode should be set to KCOV_*MODE*_TRACE_PC. - When the owning task of kcov exits, the memory mapping should not be cleared so it can be used by other tasks. - Add more tests (also tested on native Linux kcov). PiperOrigin-RevId: 335202585
2020-10-02Merge release-20200921.0-102-g4f462b0ed (automated)gVisor bot
2020-10-02Convert uses of the binary package in kernel to go-marshal.Rahat Mahmood
PiperOrigin-RevId: 335077195
2020-09-30Merge release-20200921.0-74-g387501219 (automated)gVisor bot
2020-09-29Replace remaining uses of reflection-based marshalling.Rahat Mahmood
- Rewrite arch.Stack.{Push,Pop}. For the most part, stack now implements marshal.CopyContext and can be used as the target of marshal operations. Stack.Push had some extra logic for automatically null-terminating slices. This was only used for two specific types of slices, and is now handled explicitly. - Delete usermem.CopyObject{In,Out}. - Replace most remaining uses of the encoding/binary package with go-marshal. Most of these were using the binary package to compute the size of a struct, which go-marshal can directly replace. ~3 uses of the binary package remain. These aren't reasonably replaceable by go-marshal: for example one use is to construct the syscall trampoline for systrap. - Fill out remaining convenience wrappers in the primitive package. PiperOrigin-RevId: 334502375
2020-09-29Merge release-20200921.0-66-g7d64bc1fd (automated)gVisor bot
2020-09-29Merge pull request #3875 from btw616:fix/issue-3874gVisor bot
PiperOrigin-RevId: 334428344
2020-09-27Merge release-20200921.0-53-g2a60f9229 (automated)gVisor bot
2020-09-27Clean up kcov.Dean Deng
Previously, we did not check the kcov mode when performing task work. As a result, disabling kcov did not do anything. Also avoid expensive atomic RMW when consuming coverage data. We don't need the swap if the value is already zero (which is most of the time), and it is ok if there are slight inconsistencies due to a race between coverage data generation (incrementing the value) and consumption (reading a nonzero value and writing zero). PiperOrigin-RevId: 334049207
2020-09-24Merge release-20200914.0-152-g0a7075f38 (automated)gVisor bot
2020-09-24Add basic stateify annotations.Adin Scannell
Updates #1663 PiperOrigin-RevId: 333539293
2020-09-24Fix socket record leak in VFS2Tiwei Bie
VFS2 socket record is not removed from the system-wide socket table when the socket is released, which will lead to a memory leak. This patch fixes this issue. Fixes: #3874 Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
2020-09-24Rename kernel.SocketEntry to kernel.SocketRecordTiwei Bie
SocketEntry can be confusing with the template types as the 'Entry' is usually used as a suffix for list element types, e.g. socketEntry in the same package. Suggested by Dean (@dean-deng). Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
2020-09-23Merge release-20200914.0-137-g99decaadd (automated)gVisor bot
2020-09-23Merge release-20200914.0-136-gb54dbdfdc (automated)gVisor bot
2020-09-22Handle EOF properly in splice/sendfile.Dean Deng
Use HandleIOErrorVFS2 instead of custom error handling. PiperOrigin-RevId: 333227581
2020-09-23Merge release-20200914.0-135-gc0f21bb19 (automated)gVisor bot
2020-09-22Merge release-20200914.0-134-gcf3cef117 (automated)gVisor bot
2020-09-22Merge release-20200914.0-133-g20dc83c9e (automated)gVisor bot
2020-09-22Merge release-20200914.0-132-g778c36717 (automated)gVisor bot
2020-09-22Merge release-20200914.0-131-g6e5ea605f (automated)gVisor bot
2020-09-22Merge release-20200914.0-130-g13a9a622e (automated)gVisor bot
2020-09-22Merge release-20200914.0-129-gf134f873f (automated)gVisor bot
2020-09-22Merge release-20200914.0-128-g742e58b87 (automated)gVisor bot
2020-09-21Merge release-20200914.0-127-g059d90b9f (automated)gVisor bot
2020-09-21Merge release-20200914.0-125-g06dbd5b7b (automated)gVisor bot
2020-09-21Merge release-20200914.0-124-g10dcefbc7 (automated)gVisor bot
2020-09-21Merge release-20200914.0-123-ga129204cf (automated)gVisor bot
2020-09-21Merge release-20200914.0-122-gd72022373 (automated)gVisor bot
2020-09-21Merge release-20200907.0-159-ge09d78f01 (automated)gVisor bot
2020-09-21Merge release-20200907.0-158-g5ce588295 (automated)gVisor bot
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2020-09-19Merge release-20200907.0-154-g916751039 (automated)gVisor bot
2020-09-18Merge release-20200907.0-153-g4ba86e625 (automated)gVisor bot
2020-09-18Merge release-20200907.0-151-g6c9989cb8 (automated)gVisor bot
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