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* tests: allow qemu-iotests to be run against nbd backendNick Thomas2012-11-143-8/+38
| | | | | | | | | | | | To do this, we start a qemu-nbd process at _make_test_img and kill it in _cleanup_test_img. $TEST_IMG is changed to point at the TCP server. We also remove the checks for existence of binaries from common.config - they're duplicated in common, and we can make the qemu-nbd check conditional on $IMGPROTO being "nbd" if we do it there. Signed-off-by: Nick Thomas <nick@bytemark.co.uk> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: qcow2: Test growing large refcount tableKevin Wolf2012-11-145-5/+134
| | | | | | | | | Actually writing all the content with 512 byte sector size would take forever, therefore build the image file with a Python script and use qemu-io for the last write that actually triggers the refcount table growth. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: add testcases for mirroring on-source-error/on-target-errorPaolo Bonzini2012-10-243-2/+259
| | | | | | | | The new options are tested with blkdebug on both the source and the target. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: add mirroring test casePaolo Bonzini2012-10-243-0/+368
| | | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: Add 043 backing file chain infinite loop testStefan Hajnoczi2012-10-244-0/+172
| | | | | | | | This new test verifies that qemu-img info --backing-chain safely aborts when an image file has a backing file infinite loop. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: add relative backing file tests for block-commit (040)Jeff Cody2012-10-242-2/+104
| | | | | | | | | The previous block commit used absolute filenames for all block-commit images and commands; this adds relative filenames for the same tests. Signed-off-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* block: in commit, determine base image from the top imageJeff Cody2012-10-241-2/+2
| | | | | | | | | | | | | | | | | | This simplifies some code and error checking, and also fixes a bug. bdrv_find_backing_image() should only be passed absolute filenames, or filenames relative to the chain. In the QMP message handler for block commit, when looking up the base do so from the determined top image, so we know it is reachable from top. Some of the error messages put out by block-commit have changed slightly, which causes 2 tests cases for block-commit to fail. This patch updates the test cases to look for the correct error output. Signed-off-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: Test qemu-img operation on zero size imageKevin Wolf2012-10-243-0/+94
| | | | | Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
* qemu-iotests: add tests for streaming error handlingPaolo Bonzini2012-09-283-2/+229
| | | | | | | | | | | Add a test for each of report/ignore/stop. The tests use blkdebug to generate an error in the middle of a script. The error is recoverable (once = "on") so that we can test resuming a job after stopping for an error. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: map underscore to dash in QMP argument namesPaolo Bonzini2012-09-281-1/+7
| | | | | | | | | | | | | iotests.py provides a convenience function that uses Python keyword arguments to represent QMP command arguments. However, almost all QMP commands use dashes for argument names (the sole exception is block_set_io_throttle), and dashes are not allowed in a keyword argument name. Hence provide automatic conversion of underscores to dashes. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: add test for pausing a streaming operationPaolo Bonzini2012-09-283-5/+41
| | | | | | | | | | | | | | These check that a paused streaming job does not advance its offset. Sometimes the new test fails; the map is different between the source and the destination of the streaming because qemu-io does not always pack adjacent clusters that have the same allocated/unallocated state. However, this also happens with the existing test_stream testcase, and is better fixed in qemu-io. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: add initial tests for live block commitJeff Cody2012-09-283-0/+184
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Derived from the streaming test cases (030), this adds the following 9 tests: 1. For the following image chain, commit [mid] into [backing], and use qemu-io to verify [backing] has its original data, as well as the data from [mid] [backing] <-- [mid] <-- [test] 2. Verifies that 'block-commit' with the 'speed' parameter sets the speed parameter, as reported by 'query-block-jobs' 3. Verifies that a bogus 'device' parameter to 'block-commit' results in error 4-9: Appropriate error values returned for the following argument errors: * top == base * top is nonexistent * base is nonexistent * top == active layer (this is currently not supported) * top and base arguments are reversed * top argument is omitted Signed-off-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: add backing file smaller than image test caseStefan Hajnoczi2012-08-292-2/+35
| | | | | | | | | This new test case checks that streaming completes successfully when the backing file is smaller than the image file. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: Fix 030 after switch to GenericErrorKevin Wolf2012-08-151-4/+2
| | | | | Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
* qemu-iotests: skip 039 with ./check -nocacheStefan Hajnoczi2012-08-102-0/+15
| | | | | | | | When the qemu-io --nocache option is used the 039 test case cannot abort QEMU at a point where the image is dirty. Skip the test case. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* block: add BLOCK_O_CHECK for qemu-img checkStefan Hajnoczi2012-08-101-0/+6
| | | | | | | | | | | | | | | | | | Image formats with a dirty bit, like qed and qcow2, repair dirty image files upon open with BDRV_O_RDWR. Performing automatic repair when qemu-img check runs is not ideal because the bdrv_open() call repairs the image before the actual bdrv_check() call from qemu-img.c. Fix this "double repair" since it leads to confusing output from qemu-img check. Tell the block driver that this image is being opened just for bdrv_check(). This skips automatic repair and qemu-img.c can invoke it manually with bdrv_check(). Update the golden output for qemu-iotests 039 to reflect the new qemu-img check output. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: Save some sed processesKevin Wolf2012-08-101-10/+10
| | | | | | | | | Instead of building a huge pipeline, just pass all expressions to a single sed process. Suggested-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
* qemu-iotests: Be more flexible with image creation optionsKevin Wolf2012-08-062-7/+7
| | | | | | | | | | qemu-iotests already filters out image creation options that may be present or not in order to get the same output in both cases. However, often it only considers the default value of the option. Cover all valid values instead so that ./check -o name=value can be used successfull for all of them. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: add 039 qcow2 lazy refcounts testStefan Hajnoczi2012-08-063-0/+190
| | | | | | | | | | | | | | | | | This tests establishes the basic post-conditions of the qcow2 lazy refcounts features: 1. If the image was closed normally, it is marked clean. 2. If an allocating write was performed and the image was not closed normally, then it is marked dirty. a. Written data can be read back successfully. b. The image file can be repaired and will be marked clean again. c. The image file is automatically repaired when opened read/write. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qcow2: implement lazy refcountsStefan Hajnoczi2012-08-062-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | Lazy refcounts is a performance optimization for qcow2 that postpones refcount metadata updates and instead marks the image dirty. In the case of crash or power failure the image will be left in a dirty state and repaired next time it is opened. Reducing metadata I/O is important for cache=writethrough and cache=directsync because these modes guarantee that data is on disk after each write (hence we cannot take advantage of caching updates in RAM). Refcount metadata is not needed for guest->file block address translation and therefore does not need to be on-disk at the time of write completion - this is the motivation behind the lazy refcount optimization. The lazy refcount optimization must be enabled at image creation time: qemu-img create -f qcow2 -o compat=1.1,lazy_refcounts=on a.qcow2 10G qemu-system-x86_64 -drive if=virtio,file=a.qcow2,cache=writethrough Update qemu-iotests 031 and 036 since the extension header size changes when we add feature bit table entries. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: ignore qemu-img create lazy_refcounts outputStefan Hajnoczi2012-08-061-1/+2
| | | | | | | | | | | | | Hide the default lazy_refcounts=off output from qemu-img like we do with other image creation options. This ensures that existing golden outputs continue to pass despite the new option that has been added. Note that this patch applies before the one that actually introduces the lazy_refcounts=on|off option. This ensures git-bisect(1) continues to work. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qcow2: introduce dirty bitStefan Hajnoczi2012-08-062-12/+12
| | | | | | | | | | | | This patch adds an incompatible feature bit to mark images that have not been closed cleanly. When a dirty image file is opened a consistency check and repair is performed. Update qemu-iotests 031 and 036 since the extension header size changes when we add feature bit table entries. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: add qed.py image manipulation utilityStefan Hajnoczi2012-08-061-0/+235
| | | | | | | | | | | | | | The qed.py utility can inspect and manipulate QED image files. It can be used for testing to see the state of image metadata and also to inject corruptions into the image file. It also has a scrubbing feature to copy just the metadata out of an image file, allowing users to share broken image files without revealing data in bug reports. This has lived in my local repo for a long time but could be useful to others. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: Valgrind supportKevin Wolf2012-07-172-0/+21
| | | | | | | | check -valgrind wraps all qemu-io calls with valgrind. This makes it a bit easier to debug problems that occur somewhere deep in a test case. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
* qemu-iotests: add 036 autoclear feature bit testStefan Hajnoczi2012-06-153-0/+121
| | | | | | | | | This new test validates the autoclear feature bit behavior. When QEMU opens a qcow2v3 image file with an unknown autoclear feature bit the bit should be cleared in the image file header. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: add qcow2.py set-feature-bit commandStefan Hajnoczi2012-06-151-0/+23
| | | | | | | | | | | This new command sets feature bits in the image file header: qcow2.py set-feature-bit incompatible|compatible|autoclear <bit> The bit number must be in the range [0, 64). Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: COW with many AIO requests on the same clusterKevin Wolf2012-06-153-0/+1043
| | | | | | | | | This one is a bit more interesting. The COW operation isn't performed completely synchronously, and therefore dependencies must be handled correctly when multiple requests write to the same unallocated cluster. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
* qemu-iotests: Some backing file COW testsKevin Wolf2012-06-153-0/+765
| | | | | | | | Looks like we're still missing these very basic tests for backing file handling. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
* qemu-iotests: start vms in qtest modePaolo Bonzini2012-06-152-2/+4
| | | | | | | | | This way, they will not execute any VM code at all. However, right now the cancellation test is "relying" on being slowed down by TCG executing BIOS code. So, change the timeouts. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: fill streaming test image with dataPaolo Bonzini2012-06-151-1/+12
| | | | | | | | | | | | | | | | | | | | The TestStreamStop test case is racy; if the job completes before we can cancel it, it fails. If we remove the sleep the job will be canceled before it has even started, and the test succeeds but it is also not testing anything interesting. But if the image is left sparse, then the job has really nothing to do. For qcow2 it will read one L2-table, for raw it will issue a bunch of ioctls. This also falls under "not testing anything interesting", and this may be happening right now (depending on the filesystem) since the file protocol got an is_allocated method. Filling the test image with data ensures that the test covers the intended case. It also slows down the test, which will be particularly important after the next patch. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: mark 035 qcow2-onlyStefan Hajnoczi2012-05-251-1/+1
| | | | | | | | | | | | | | | | | | | The 035 parallel aio write test relies on knowledge of qcow2 metadata layout to stress parallel L2 table accesses. This only works for qcow2 unless we add additional calculations for qed or other formats. Mark this test as qcow2-only. Note that the test is strictly speaking non-deterministic although the output produced is reliable with qcow2. This is because the aio_write command returns before the aio write request has completed. Completions can occur at any time afterwards and cause a message to be printed. Therefore the exact output of this test is not deterministic but we seem to get away with it for qcow2 (maybe due to coroutine and main loop scheduling). Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* stream: do not copy unallocated sectors from the basePaolo Bonzini2012-05-101-2/+3
| | | | | | | | | | | | Unallocated sectors should really never be accessed by the guest, so there's no need to copy them during the streaming process. If they are read by the guest during streaming, guest-initiated copy-on-read will copy them (we're in the base == NULL case, which enables copy on read). If they are read after we disconnect the image from the base, they will read as zeroes anyway. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* stream: add testcase for partial streamingPaolo Bonzini2012-05-102-3/+29
| | | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* stream: fix sectors not allocated testPaolo Bonzini2012-05-102-4/+7
| | | | | | | | The test on sectors not allocated can fail if the L1/L2 tables are not on disk yet. Allow tests to shutdown the VM early. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-io: correctly print non-integer values as decimalsPaolo Bonzini2012-05-1012-4173/+4173
| | | | | | | | | | | | | qemu-io's cvtstr function sometimes will incorrectly omit the decimal part of the number, and sometimes will incorrectly include it. This patch fixes both. The former is more serious, and can be seen in the patches to 027.out and 033.out. The changes to all other files were scripted with sed, so there were no "surprises" beyond 027.out and 033.out. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: strip spaces from qemu-img/qemu-io/qemu command linesPaolo Bonzini2012-05-101-3/+3
| | | | | | | | | A trailing space is left when qemu-img has no arguments, for example if -nocache is not used. This becomes an empty argument after split() and causes qemu-io to fail. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: Many parallel allocating I/O requestsKevin Wolf2012-05-023-0/+465
| | | | | | | This test case manages to let qcow2 abort because its cache is used up and it can't find free cache entries for new requests any more. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: ignore fragmentation information for qedDong Xu Wang2012-05-021-0/+1
| | | | | | | | | | We added image fragmentation statistics functions to qemu-img several days ago, those patches will cause "./check -qed" failed. This patch will ignore fragmentation statistics information of qed format, and then "./check -qed" will work. Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: add block-stream speed value test caseStefan Hajnoczi2012-04-272-18/+71
| | | | | | | | | | | | | | | | | Add tests to exercise the InvalidParameter 'speed' error code path, as well as the regular success case for setting the speed. The block-stream 'speed' parameter allows the speed limit of the job to be applied immediately when the job starts instead of issuing a separate block-job-set-speed command later. If the parameter has an invalid value we expect to get an error and the job is not created. It turns out that cancelling a block job is a common operation in these test cases, let's extract a cancel_and_wait() function instead of duplicating the QMP commands. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Acked-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
* Merge remote-tracking branch 'qmp/queue/qmp' into stagingAnthony Liguori2012-04-231-6/+6
|\ | | | | | | | | | | * qmp/queue/qmp: qapi: g_hash_table_find() instead of GHashTableIter. qmp: make block job command naming consistent
| * qmp: make block job command naming consistentStefan Hajnoczi2012-04-231-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The block streaming and job commands used '_' instead of '-' for reasons of compatibility with libvirt, which already included support for the '_' naming. However, the semantics of block_job_cancel have changed and libvirt now needs to handle the new semantics. Since the old semantics were never in a QEMU release we can still rename the commands to use '-' instead of '_'. Libvirt is also happy because the new name can be used to distinguish QEMU binaries that support the latest block-job-cancel semantics from those that include a downstream block_job_cancel command. Therefore, let's apply the QAPI/QMP naming rules to the block streaming and job commands. QEMU 1.1 will be the first release with these commands so no upstream users can break. Note that HMP commands are left with '_' because that is the convention there. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
* | qemu-iotests: Fix test 031 for qcow2 v3 supportKevin Wolf2012-04-203-26/+172
| | | | | | | | | | | | | | | | | | | | | | qcow2.py must be updated to work with version 3 images at all, the output has changed since the feature table extension has been added, and version 2 and version 3 images can't possibly have the same test output. Change the test case to completely ignore IMGOPTS and run the test for both compat=1.1 and compat=0.10 regardless of the ./check command line. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* | qemu-iotests: Add -o and make v3 the default for qcow2Kevin Wolf2012-04-203-5/+52
| | | | | | | | | | | | | | | | | | | | | | This adds an -o option to qemu-iotests, which is an option string that is passed through to qemu-img create -o... This allows testing different subformat with a command like './check -qcow2 -o compat=0.10'. For qcow2, if no compat option is specified, compat=1.1 is the new default. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* | qemu-iotests: Test backing file COW with zero clustersKevin Wolf2012-04-203-0/+195
| | | | | | | | Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* | qemu-iotests: add a simple test for write_zeroesPaolo Bonzini2012-04-203-0/+103
| | | | | | | | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* | iotests: Resolve test failures caused by hostnameAndreas Färber2012-04-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | `hostname -s` may output an errror: hostname: Name or service not known This causes all tests to fail for `make check-block`. Suppress such error messages, letting the tests succeed. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* | iotests: fix error in 005Dong Xu Wang2012-04-192-2/+2
| | | | | | | | | | | | | | | | According comment, we should not read again, we will write. Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* | qemu-iotests: Test bdrv_close while AIO is in flightKevin Wolf2012-04-193-0/+148
| | | | | | | | | | | | | | | | | | If the BlockDriverState is closed/freed without draining the AIO requests first, the request coroutines may work on invalid data and file descriptors or have some dangling pointers that cause segfaults. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
* | qemu-iotests: Always filter cluster_size out in _make_test_imgKevin Wolf2012-04-1911-127/+125
|/ | | | | | | | | | Some image formats do have a cluster size, others don't, but there are tests that work with both sets of images and currently we get failures because the qemu-img create output doesn't mention the cluster size for some formats. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
* qemu-iotests: Fix call syntax for qemu-ioStefan Weil2012-04-053-6/+6
| | | | | | | | | | | | qemu-io requires options first, then fixed parameters. GNU getopt also allows options at the end, but POSIX getopt doesn't. Try "export POSIXLY_CORRECT=y" to get the POSIX behaviour with GNU getopt, too. Cc: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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