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2019-10-03Merge release-20190806.1-235-g135aadb (automated)gVisor bot
2019-10-03Merge pull request #757 from xiaobo55x:pkg_bitsgVisor bot
PiperOrigin-RevId: 272760964
2019-10-03Merge release-20190806.1-233-gdb218fd (automated)gVisor bot
2019-10-03Don't report partialResult errors from sendfileAndrei Vagin
The input file descriptor is always a regular file, so sendfile can't lose any data if it will not be able to write them to the output file descriptor. Reported-by: syzbot+22d22330a35fa1c02155@syzkaller.appspotmail.com PiperOrigin-RevId: 272730357
2019-10-02Merge release-20190806.1-232-g0bf8e90 (automated)gVisor bot
2019-10-02Increase itimer test timeoutMichael Pratt
https://github.com/google/gvisor/commit/dd69b49ed1103bab82a6b2ac95221b89b46f3376 makes this test take longer. PiperOrigin-RevId: 272535892
2019-10-02Merge release-20190806.1-231-gcde7711 (automated)gVisor bot
2019-10-02Merge pull request #865 from tanjianfeng:fix-829gVisor bot
PiperOrigin-RevId: 272522508
2019-10-02Merge release-20190806.1-229-g61e4081 (automated)gVisor bot
2019-10-02Sanity test that open(2) on a UDS failsMichael Pratt
Spoiler alert: it doesn't. PiperOrigin-RevId: 272513529
2019-10-02Merge release-20190806.1-228-g2016cc2 (automated)gVisor bot
2019-10-02fs/proc: report PID-s from a pid namespace of the proc mountAndrei Vagin
Right now, we can find more than one process with the 1 PID in /proc. $ for i in `seq 10`; do > unshare -fp sleep 1000 & > done $ ls /proc 1 1 1 1 12 18 24 29 6 loadavg net sys version 1 1 1 1 16 20 26 32 cpuinfo meminfo self thread-self 1 1 1 1 17 21 28 36 filesystems mounts stat uptime PiperOrigin-RevId: 272506593
2019-10-01Merge release-20190806.1-227-g03ce4dd (automated)gVisor bot
2019-10-01Remove extra --rmMichael Pratt
PiperOrigin-RevId: 272324038
2019-10-01Merge release-20190806.1-226-g29207ce (automated)gVisor bot
2019-10-01runsc: remove todo from the build fileAndrei Vagin
b/135475885 was fixed by cl/271434565. PiperOrigin-RevId: 272320178
2019-10-01Merge release-20190806.1-225-g0d48398 (automated)gVisor bot
2019-10-01Include AT_SECURE in the aux vectorMichael Pratt
gVisor does not currently implement the functionality that would result in AT_SECURE = 1, but Linux includes AT_SECURE = 0 in the normal case, so we should do the same. PiperOrigin-RevId: 272311488
2019-10-01Merge release-20190806.1-224-g739f53f (automated)gVisor bot
2019-10-01Add runsc logs to kokoro artifactsFabricio Voznika
PiperOrigin-RevId: 272286122
2019-10-01Merge release-20190806.1-223-g103a390 (automated)gVisor bot
2019-10-01Add blacklist support to the runtime test runner.Nicolas Lacasse
Tests in the blacklist will be explicitly skipped (with associated log line). Checks in a blacklist for the nodejs tests. PiperOrigin-RevId: 272272749
2019-10-01Merge release-20190806.1-222-g277f84a (automated)gVisor bot
2019-10-01Merge release-20190806.1-221-gdd69b49 (automated)gVisor bot
2019-10-01Support new interpreter requirements in testMichael Pratt
Refactoring in 0036d1f7eb95bcc52977f15507f00dd07018e7e2 (v4.10) caused Linux to start unconditionally zeroing the remainder of the last page in the interpreter. Previously it did not due so if filesz == memsz, and *still* does not do so when filesz == memsz for loading binaries, only interpreter. This inconsistency is not worth replicating in gVisor, as it is arguably a bug, but our tests must ensure we create interpreter ELFs compatible with this new requirement. PiperOrigin-RevId: 272266401
2019-10-01Disable cpuClockTicker when app is idleMichael Pratt
Kernel.cpuClockTicker increments kernel.cpuClock, which tasks use as a clock to track their CPU usage. This improves latency in the syscall path by avoid expensive monotonic clock calls on every syscall entry/exit. However, this timer fires every 10ms. Thus, when all tasks are idle (i.e., blocked or stopped), this forces a sentry wakeup every 10ms, when we may otherwise be able to sleep until the next app-relevant event. These wakeups cause the sentry to utilize approximately 2% CPU when the application is otherwise idle. Updates to clock are not strictly necessary when the app is idle, as there are no readers of cpuClock. This commit reduces idle CPU by disabling the timer when tasks are completely idle, and computing its effects at the next wakeup. Rather than disabling the timer as soon as the app goes idle, we wait until the next tick, which provides a window for short sleeps to sleep and wakeup without doing the (relatively) expensive work of disabling and enabling the timer. PiperOrigin-RevId: 272265822
2019-10-01Merge release-20190806.1-220-g90e908f (automated)gVisor bot
2019-10-01Merge pull request #917 from KentaTada:fix-clone-flagsgVisor bot
PiperOrigin-RevId: 272262368
2019-10-01Merge release-20190806.1-218-g0b02c3d (automated)gVisor bot
2019-10-01Prevent CAP_NET_RAW from appearing in execFabricio Voznika
'docker exec' was getting CAP_NET_RAW even when --net-raw=false because it was not filtered out from when copying container's capabilities. PiperOrigin-RevId: 272260451
2019-10-01Merge release-20190806.1-217-g53cc72d (automated)gVisor bot
2019-10-01Honor X bit on extra anon pages in PT_LOAD segmentsMichael Pratt
Linux changed this behavior in 16e72e9b30986ee15f17fbb68189ca842c32af58 (v4.11). Previously, extra pages were always mapped RW. Now, those pages will be executable if the segment specified PF_X. They still must be writeable. PiperOrigin-RevId: 272256280
2019-10-01Merge release-20190806.1-216-g7a234f7 (automated)gVisor bot
2019-09-30splice: try another fallback option only if the previous one isn't supportedAndrei Vagin
Reported-by: syzbot+bb5ed342be51d39b0cbb@syzkaller.appspotmail.com PiperOrigin-RevId: 272110815
2019-10-01Merge release-20190806.1-215-g29a1ba5 (automated)gVisor bot
2019-09-30splice: compare inode numbers only if both ends are pipesAndrei Vagin
It isn't allowed to splice data from and into the same pipe. But right now this check is broken, because we don't check that both ends are pipes. PiperOrigin-RevId: 272107022
2019-10-01Merge release-20190806.1-214-g20841b9 (automated)gVisor bot
2019-09-30Update FIXME bug with GitHub issue.Adin Scannell
PiperOrigin-RevId: 272101930
2019-09-30Merge release-20190806.1-213-gbcbb3ef (automated)gVisor bot
2019-09-30Add a Stringer implementation to PacketDispatchModeBhasker Hariharan
PiperOrigin-RevId: 272083936
2019-09-30Merge release-20190806.1-212-gc06cca6 (automated)gVisor bot
2019-09-30De-flake SetForegroundProcessGroupDifferentSession.Kevin Krakauer
PiperOrigin-RevId: 272059043
2019-09-30Merge release-20190806.1-211-g61f6fbd (automated)gVisor bot
2019-09-30Fix bugs in PickEphemeralPort for TCP.Bhasker Hariharan
Netstack always picks a random start point everytime PickEphemeralPort is called. While this is required for UDP so that DNS requests go out through a randomized set of ports it is not required for TCP. Infact Linux explicitly hashes the (srcip, dstip, dstport) and a one time secret initialized at start of the application to get a random offset. But to ensure it doesn't start from the same point on every scan it uses a static hint that is incremented by 2 in every call to pick ephemeral ports. The reason for 2 is Linux seems to split the port ranges where active connects seem to use even ones while odd ones are used by listening sockets. This CL implements a similar strategy where we use a hash + hint to generate the offset to start the search for a free Ephemeral port. This ensures that we cycle through the available port space in order for repeated connects to the same destination and significantly reduces the chance of picking a recently released port. PiperOrigin-RevId: 272058370
2019-09-30Merge release-20190806.1-210-g3ad17ff (automated)gVisor bot
2019-09-30Force timestamps to update when set via InodeOperations.SetTimestamps.Nicolas Lacasse
The gofer's CachingInodeOperations implementation contains an optimization for the common open-read-close pattern when we have a host FD. In this case, the host kernel will update the timestamp for us to a reasonably close time, so we don't need an extra RPC to the gofer. However, when the app explicitly sets the timestamps (via futimes or similar) then we actually DO need to update the timestamps, because the host kernel won't do it for us. To fix this, a new boolean `forceSetTimestamps` was added to CachineInodeOperations.SetMaskedAttributes. It is only set by gofer.InodeOperations.SetTimestamps. PiperOrigin-RevId: 272048146
2019-09-30Only copy out remaining time on nanosleep successMichael Pratt
It looks like the old code attempted to do this, but didn't realize that err != nil even in the happy case. PiperOrigin-RevId: 272005887
2019-09-30Merge release-20190806.1-208-g0c4d080 (automated)gVisor bot
2019-09-29Ensure runsc is uploaded.Adin Scannell
One would reasonably assume that a field named "regex" would expect a regular expression. However, in this case, one would be wrong. The "regex" field actually requires "FileSet" [1] syntax. ?\_(?)_/? [1] http://ant.apache.org/manual/Types/fileset.html PiperOrigin-RevId: 271917356
2019-09-28Merge release-20190806.1-207-geebc38b (automated)gVisor bot
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