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PiperOrigin-RevId: 258645957
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PiperOrigin-RevId: 258643966
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PiperOrigin-RevId: 258635459
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tcpdump creates these.
PiperOrigin-RevId: 258611829
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PiperOrigin-RevId: 258607547
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We were invalidating the wrong overlayEntry in rename and missing invalidation
in rename and remove if lower exists.
PiperOrigin-RevId: 258604685
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PiperOrigin-RevId: 258479216
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Otherwise this process can be killed before it prints the test message.
PiperOrigin-RevId: 258448204
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PiperOrigin-RevId: 258424489
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This proc file reports the stats of interfaces. We could use ifconfig
command to check the result.
Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com>
Change-Id: Ia7c1e637f5c76c30791ffda68ee61e861b6ef827
COPYBARA_INTEGRATE_REVIEW=https://gvisor-review.googlesource.com/c/gvisor/+/18282/
PiperOrigin-RevId: 258303936
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Now we call FUTEX_WAKE with ^uintptr(0) of waiters, but in this case only one
waiter will be waked up. If we want to wake up all of them, the number of
waiters has to be set to math.MaxInt32.
PiperOrigin-RevId: 258285286
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C++ does not like vectors of arrays (because arrays are not copy-constructable).
PiperOrigin-RevId: 258270980
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It is now correctly initialized to the top of the signal stack.
Previously it was initialized to the address of 'stack.ss_sp' on
the main thread stack.
PiperOrigin-RevId: 258248363
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iptables also relies on IPPROTO_RAW in a way. It opens such a socket to
manipulate the kernel's tables, but it doesn't actually use any of the
functionality. Blegh.
PiperOrigin-RevId: 257903078
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PiperOrigin-RevId: 257888338
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PiperOrigin-RevId: 257887940
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Change-Id: I8307bfb390a56424aaa651285a218aad277c4aed
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PiperOrigin-RevId: 257870018
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Adds support to set/get the TCP_MAXSEG value but does not
really change the segment sizes emitted by netstack or
alter the MSS advertised by the endpoint. This is currently
being added only to unblock iperf3 on gVisor. Plumbing
this correctly requires a bit more work which will come
in separate CLs.
PiperOrigin-RevId: 257859112
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PiperOrigin-RevId: 257855777
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PiperOrigin-RevId: 257855479
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These are filesystem-specific, and filesystems are allowed to return ENOTSUP if
they are not supported.
PiperOrigin-RevId: 257813477
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Actual implementation to follow, but this will satisfy applications that
want it to just exist.
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The image is of size 64Kb which supports 64 1k blocks
and 16 inodes. This is the smallest size mkfs.ext4 works with.
Added README.md documenting how this was created and included
all files on the device under assets.
PiperOrigin-RevId: 257712672
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PiperOrigin-RevId: 257703164
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Renamed ext4 to ext since we are targeting ext(2/3/4).
Removed fs.go since we are targeting VFS2.
Added ext.go with filesystem struct.
PiperOrigin-RevId: 257689775
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The latest version 2.28.0 doesn't work:
./runsc/linux_amd64_pure_stripped/runsc: operation not permitted, want 0
PiperOrigin-RevId: 257663312
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A userspace process (CPL=3) can access an i/o port if the bit corresponding to
the port is set to 0 in the I/O permission bitmap.
Configure the I/O permission bitmap address beyond the last valid byte in the
TSS so access to all i/o ports is blocked.
Signed-off-by: Liu Hua <sdu.liu@huawei.com>
Change-Id: I3df76980c3735491db768f7210e71703f86bb989
PiperOrigin-RevId: 257336518
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PiperOrigin-RevId: 257314911
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PiperOrigin-RevId: 257297820
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PiperOrigin-RevId: 257293198
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The error set in the loop in createAt was being masked
by other errors declared with ":=". This allowed an
ErrResolveViaReadlink error to escape, which can cause
a sentry panic.
Added test case which repros without the fix.
PiperOrigin-RevId: 257061767
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PiperOrigin-RevId: 257042681
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PiperOrigin-RevId: 257041876
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PiperOrigin-RevId: 257037608
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PiperOrigin-RevId: 257010414
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PiperOrigin-RevId: 256494243
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PiperOrigin-RevId: 256481284
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PiperOrigin-RevId: 256453827
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PiperOrigin-RevId: 256433283
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PiperOrigin-RevId: 256319059
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BounceToKernel will make vCPU quit from guest ring3 to guest ring0, but
vCPUWaiter is not cleared when we unlock the vCPU, when next time this vCPU
enter guest mode ring3, vCPU may enter guest mode with vCPUWaiter bit setted,
this will cause the following BounceToKernel to this vCPU hangs at
waitUntilNot.
Halt may workaroud this issue, because halt process will reset vCPU status into
vCPUUser, and notify all waiter for vCPU state change, but if there is no
exception or syscall in this period, BounceToKernel will hang at waitUntilNot.
PiperOrigin-RevId: 256299660
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This renames FDMap to FDTable and drops the kernel.FD type, which had an entire
package to itself and didn't serve much use (it was freely cast between types,
and served as more of an annoyance than providing any protection.)
Based on BenchmarkFDLookupAndDecRef-12, we can expect 5-10 ns per lookup
operation, and 10-15 ns per concurrent lookup operation of savings.
This also fixes two tangential usage issues with the FDMap. Namely, non-atomic
use of NewFDFrom and associated calls to Remove (that are both racy and fail to
drop the reference on the underlying file.)
PiperOrigin-RevId: 256285890
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Adds support level documentation for all syscalls. Removes the Undocumented
utility function to discourage usage while leaving SupportUndocumented as the
default support level for Syscall structs.
PiperOrigin-RevId: 256281927
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https://bugzilla.redhat.com/show_bug.cgi?id=1568337
PiperOrigin-RevId: 256276198
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PiperOrigin-RevId: 256234390
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PiperOrigin-RevId: 256231055
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fileOpAt holds references on the Dirents passed as arguments to the callback,
and drops refs when finished, so we don't need to DecRef those Dirents
ourselves
However, all Dirents that we get from FindInode/FindLink must be DecRef'd.
This CL cleans up the ref-counting logic, and fixes some refcount issues in the
process.
PiperOrigin-RevId: 256220882
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It feels like "reticulating splines" is missing from the list of meaningless
syslog messages.
Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>
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