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2020-04-21Merge release-20200323.0-207-g37e01fd (automated)gVisor bot
2020-04-21Misc VFS2 fixesFabricio Voznika
- Fix defer operation ordering in kernfs.Filesystem.AccessAt() - Add AT_NULL entry in proc/pid/auvx - Fix line padding in /proc/pid/maps - Fix linux_dirent serialization for getdents(2) - Remove file creation flags from vfs.FileDescription.statusFlags() Updates #1193, #1035 PiperOrigin-RevId: 307704159
2020-04-21Merge release-20200323.0-206-geba0866 (automated)gVisor bot
2020-04-21Merge pull request #1818 from lubinszARM:pr_signal_1gVisor bot
PiperOrigin-RevId: 307680200
2020-04-21Merge release-20200323.0-204-g89822a4 (automated)gVisor bot
2020-04-21Move to GitHub's new issue templates.Adin Scannell
This allows us to specify a richer configuration for the issue template, that effectively moves a lot of the "metadata" from the template itself to the main issue page. PiperOrigin-RevId: 307666509
2020-04-21Merge release-20200323.0-203-g9b5e305 (automated)gVisor bot
2020-04-21Remove filesystem structure from vfs.Dentry.Jamie Liu
This change: - Drastically simplifies the synchronization model: filesystem structure is both implementation-defined and implementation-synchronized. - Allows implementations of vfs.DentryImpl to use implementation-specific dentry types, reducing casts during path traversal. - Doesn't require dentries representing non-directory files to waste space on a map of children. - Allows dentry revalidation and mount lookup to be correctly ordered (fixed FIXME in fsimpl/gofer/filesystem.go). - Removes the need to have two separate maps in gofer.dentry (dentry.vfsd.children and dentry.negativeChildren) for positive and negative lookups respectively. //pkg/sentry/fsimpl/tmpfs/benchmark_test.go: name old time/op new time/op delta VFS2TmpfsStat/1-112 172ns ± 4% 165ns ± 3% -4.08% (p=0.002 n=9+9) VFS2TmpfsStat/2-112 199ns ± 3% 195ns ±10% ~ (p=0.132 n=8+9) VFS2TmpfsStat/3-112 230ns ± 2% 216ns ± 2% -6.15% (p=0.000 n=8+8) VFS2TmpfsStat/8-112 390ns ± 2% 358ns ± 4% -8.33% (p=0.000 n=9+8) VFS2TmpfsStat/64-112 2.20µs ± 3% 2.01µs ± 3% -8.48% (p=0.000 n=10+8) VFS2TmpfsStat/100-112 3.42µs ± 9% 3.08µs ± 2% -9.82% (p=0.000 n=9+8) VFS2TmpfsMountStat/1-112 278ns ± 1% 286ns ±15% ~ (p=0.712 n=8+10) VFS2TmpfsMountStat/2-112 311ns ± 4% 298ns ± 2% -4.27% (p=0.000 n=9+8) VFS2TmpfsMountStat/3-112 339ns ± 3% 330ns ± 9% ~ (p=0.070 n=8+9) VFS2TmpfsMountStat/8-112 503ns ± 3% 466ns ± 3% -7.38% (p=0.000 n=8+8) VFS2TmpfsMountStat/64-112 2.53µs ±16% 2.17µs ± 7% -14.19% (p=0.000 n=10+9) VFS2TmpfsMountStat/100-112 3.60µs ± 4% 3.30µs ± 8% -8.33% (p=0.001 n=8+9) Updates #1035 PiperOrigin-RevId: 307655892
2020-04-21Merge release-20200323.0-202-g639c8dd (automated)gVisor bot
2020-04-21Restore euid upon test finishKevin Krakauer
PiperOrigin-RevId: 307638329
2020-04-21Merge release-20200323.0-201-g8b72623 (automated)gVisor bot
2020-04-21Internal change.gVisor bot
PiperOrigin-RevId: 307622320
2020-04-21Sentry metrics updates.Dave Bailey
Sentry metrics with nanoseconds units are labeled as such, and non-cumulative sentry metrics are supported. PiperOrigin-RevId: 307621080
2020-04-21Merge release-20200323.0-199-g120d3b5 (automated)gVisor bot
2020-04-21Automated rollback of changelist 307477185gVisor bot
PiperOrigin-RevId: 307598974
2020-04-21Merge release-20200323.0-198-gc615aaf (automated)gVisor bot
2020-04-20Add internal nogo analysis & checkescape tool.Adin Scannell
See tools/nogo/README.md. The checkescape tool is able to perform recursive escape analysis, using the actual generated binary to confirm the results produced by the compiler itself. As an initial use case, this replaces the manual escape analysis tests used for go_marshal, and validates that the CopyIn and CopyOut paths will not require any allocation or stack splits. Updates #2243 PiperOrigin-RevId: 307532986
2020-04-20Merge release-20200323.0-197-g7820415 (automated)gVisor bot
2020-04-20Prevent race when reassigning CancellableTimerGhanan Gowripalan
Capture a timer's locker for each instance of a CancellableTimer so that reassigning a tcpip.CancellableTimer does not cause a data race. Reassigning a tcpip.CancellableTimer updates its underlying locker. When a timer fires, it does a read of the timer's locker variable to lock it. This read of the locker was not synchronized so a race existed where one goroutine may reassign the timer (updating the locker) and another handles the timer firing (attempts to lock the timer's locker). Test: tcpip_test.TestCancellableTimerReassignment PiperOrigin-RevId: 307499822
2020-04-20Merge release-20200323.0-196-g1a597e0 (automated)gVisor bot
2020-04-20Add a functional vm_test for root_test.Adin Scannell
This change renames the tools/images directory to tools/vm for clarity, and adds a functional vm_test. Sharding is also added to the same test, and some documentation added around key flags & variables to describe how they work. Subsequent changes will add vm_tests for other cases, such as the runtime tests. PiperOrigin-RevId: 307492245
2020-04-20Merge release-20200323.0-195-g07b1b4c (automated)gVisor bot
2020-04-20Merge pull request #2313 from kevinGC:firstngVisor bot
PiperOrigin-RevId: 307477185
2020-04-20Merge release-20200323.0-193-g470633d (automated)gVisor bot
2020-04-20Fix release.sh. git commands need to be run in git repo.Ting-Yu Wang
PiperOrigin-RevId: 307458938
2020-04-20Merge release-20200323.0-192-g763d16f (automated)gVisor bot
2020-04-20Merge pull request #2060 from xiaobo55x:rseqgVisor bot
PiperOrigin-RevId: 307453436
2020-04-20Merge release-20200323.0-190-g9ba3086 (automated)gVisor bot
2020-04-20Move runtime_tests.sh to align with other scripts.Adin Scannell
PiperOrigin-RevId: 307435879
2020-04-20Merge release-20200323.0-189-ge72ce8c (automated)gVisor bot
2020-04-20Change lingering uses of "memfs" in fsimpl/tmpfs to "tmpfs".Jamie Liu
PiperOrigin-RevId: 307422746
2020-04-20Merge release-20200323.0-188-g1a940f2 (automated)gVisor bot
2020-04-20Resolve issue with file mode for host fds.Dean Deng
Instead of plumbing error through kernfs.Inode.Mode, panic if err != nil. The errors that can result from an fstat syscall all indicate that something is fundamentally wrong, and panicking should be acceptable. PiperOrigin-RevId: 307406847
2020-04-20Merge release-20200323.0-187-gdb2a60b (automated)gVisor bot
2020-04-19Don't accept segments outside the receive windowEyal Soha
Fixed to match RFC 793 page 69. Fixes #1607 PiperOrigin-RevId: 307334892
2020-04-20Merge release-20200323.0-186-g08b2fd9 (automated)gVisor bot
2020-04-19Convert tcp_user_timeout test from packetdrill to packetimpact.Eyal Soha
PiperOrigin-RevId: 307328289
2020-04-18Merge release-20200323.0-185-gea9bb1c (automated)gVisor bot
2020-04-17Merge pull request #2235 from xiaobo55x:pcidgVisor bot
PiperOrigin-RevId: 307166482
2020-04-18Merge release-20200323.0-183-g9a233c9 (automated)gVisor bot
2020-04-17Fix watchdog skipStack: the meaning was reversed.Adin Scannell
PiperOrigin-RevId: 307166317
2020-04-17Merge release-20200323.0-182-ge838290 (automated)gVisor bot
2020-04-17prlimit: don't check credentials on selfKevin Krakauer
prlimit was erroneously comparing UIDs and GIDs when getting/setting a process' own limits. From the manpage: To set or get the resources of a process other than itself, the caller must have the CAP_SYS_RESOURCE capability, or the real, effective, and saved set user IDs of the target process must match the real user ID of the caller and the real, effective, and saved set group IDs of the target process must match the real group ID of the caller. PiperOrigin-RevId: 307127266
2020-04-17Merge release-20200323.0-181-g486759a (automated)gVisor bot
2020-04-17Support NDP DNS Search List optionGhanan Gowripalan
Inform the netstack integrator when the netstack receives an NDP Router Advertisement message with the NDP DNS Search List option with at least one domain name. The stack will not maintain any state related to the search list - the integrator is expected to maintain any required state and invalidate domain names after their lifetime expires, or refresh the lifetime when a new one is received for a known domain name. Test: - header_test.TestNDPDNSSearchListOption - header_test.TestNDPDNSSearchListOptionSerialize - header_test.TestNDPSearchListOptionDomainNameLabelInvalidSymbols - header_test.TestNDPOptionsIterCheck - stack_test.TestNDPDNSSearchListDispatch PiperOrigin-RevId: 307109375
2020-04-17Merge release-20200323.0-180-ga80cd43 (automated)gVisor bot
2020-04-17Add test name to boot and gofer log filesFabricio Voznika
This is to make easier to find corresponding logs in case test fails. PiperOrigin-RevId: 307104283
2020-04-17Remove View.First() and View.RemoveFirst()Kevin Krakauer
These methods let users eaily break the VectorisedView abstraction, and allowed netstack to slip into pseudo-enforcement of the "all headers are in the first View" invariant. Removing them and replacing with PullUp(n) breaks this reliance and will make it easier to add iptables support and rework network buffer management. The new View.PullUp(n) method is low cost in the common case, when when all the headers fit in the first View.
2020-04-17Merge release-20200323.0-179-g80deebb (automated)gVisor bot
2020-04-17Merge pull request #1978 from lubinszARM:pr_signal_mmgVisor bot
PiperOrigin-RevId: 307078788
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