Age | Commit message (Collapse) | Author |
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Reported-by: syzbot+63bde04529f701c76168@syzkaller.appspotmail.com
Reported-by: syzbot+69866b9a16ec29993e6a@syzkaller.appspotmail.com
PiperOrigin-RevId: 389084629
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Msgqueue tests were using fork() to run create a separate thread of
execution for passing messages back and forth over a queue. However,
the child process after a fork() may only use async-signal-safe
functions, which at a minimum exclude gtest asserts.
Instead, use threads.
PiperOrigin-RevId: 389073744
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For file-based mmap tests, the underlying file system may not support
mmaps depending on the sandbox configuration. This is case when
caching is disabled for goferfs.
PiperOrigin-RevId: 389052722
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Go's dev.typeparams branch already claims to be Go 1.18, so our !go1.18 build
tags breaking testing gVisor with that branch.
Normally I would not want to bump the build tags this early, but I plan to
extend checklinkname to check the assumptions in these files and remove the
build tags ASAP. So we just go ahead and bump the tags until then to unblock
testing.
PiperOrigin-RevId: 389037239
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PiperOrigin-RevId: 389035388
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PiperOrigin-RevId: 388985968
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Fixes #6408
PiperOrigin-RevId: 388978814
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AlignedAtomicUint64 is 15 bytes and it takes 16 bytes in structures. On
32-bit systems, variables and structure fields is guaranteed to be
32-bit aligned and this means that we need only 12 bytes to find 8
contiguous bytes.
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In this case, the task is already a subreaper, so setting this bit is a noop.
Updates #2323
PiperOrigin-RevId: 388828034
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PiperOrigin-RevId: 388819374
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Add Fs controls and implement "cat" command.
PiperOrigin-RevId: 388812540
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This change makes these tests easier to run on systems that have their temp
directory in another location.
PiperOrigin-RevId: 388601202
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Also change runsc pause/resume cmd to access Lifecycle instead of
containerManager.
PiperOrigin-RevId: 388534928
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PiperOrigin-RevId: 388533368
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PiperOrigin-RevId: 388497055
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PiperOrigin-RevId: 388494554
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Implement Queue.Copy and add more tests for it.
Updates #135
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Add support for msgsnd and msgrcv and enable syscall tests.
Updates #135
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Receive implements the behaviour of msgrcv(2) without the MSG_COPY flag.
Updates #135
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Send implements the functionality of msgsnd(2).
Updates #135
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Updates #135
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Updates #135
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PiperOrigin-RevId: 388129112
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This change will allow us to remove the default link in a packetimpact test so
we can reduce indeterministic behaviors as required in https://fxbug.dev/78430.
This will also help with testing #1388.
Updates #578, #1388.
PiperOrigin-RevId: 387896847
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PiperOrigin-RevId: 387885663
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This CL introduces a 'checklinkname' analyzer, which provides rudimentary
type-checking that verifies that function signatures on the local and remote
sides of //go:linkname directives match expected values.
If the Go standard library changes the definitions of any of these function,
checklinkname will flag the change as a finding, providing an error informing
the gVisor team to adapt to the upstream changes. This allows us to eliminate
the majority of gVisor's forward-looking negative build tags, as we can catch
mismatches in testing [1].
The remaining forward-looking negative build tags are covering shared struct
definitions, which I hope to add to checklinkname in a future CL.
[1] Of course, semantics/requirements can change without the signature
changing, so we still must be careful, but this covers the common case.
PiperOrigin-RevId: 387873847
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PiperOrigin-RevId: 387513118
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For comparison:
```
$ docker run --rm -it ubuntu:focal bash -c 'cat /proc/self/status'
Name: cat
Umask: 0022
State: R (running)
Tgid: 1
Ngid: 0
Pid: 1
PPid: 0
TracerPid: 0
Uid: 0 0 0 0
Gid: 0 0 0 0
FDSize: 64
Groups:
NStgid: 1
NSpid: 1
NSpgid: 1
NSsid: 1
VmPeak: 2660 kB
VmSize: 2660 kB
VmLck: 0 kB
VmPin: 0 kB
VmHWM: 528 kB
VmRSS: 528 kB
...
$ docker run --runtime=runsc-vfs2 --rm -it ubuntu:focal bash -c 'cat /proc/self/status'
Name: cat
State: R (running)
Tgid: 1
Pid: 1
PPid: 0
TracerPid: 0
Uid: 0 0 0 0
Gid: 0 0 0 0
FDSize: 4
Groups:
VmSize: 10708 kB
VmRSS: 3124 kB
VmData: 316 kB
...
```
Fixes #6374
PiperOrigin-RevId: 387465655
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