kernel.git/tools/testing/nvdimm/test, branch linux-4.13.y

tools/testing/nvdimm: fix nfit_test buffer overflow

2017-06-15T21:31:41Z

The root cause of panic is the num_pm of nfit_test1 is wrong. Though 1 is specified for num_pm at nfit_test_init(), it must be 2, because nfit_test1->spa_set[] array has 2 elements. Since the array is smaller than expected, the driver breaks other area. (it is often the link list of devres). As a result, panic occurs like the following example. CPU: 4 PID: 2233 Comm: lt-libndctl Tainted: G O 4.12.0-rc1+ #12 RIP: 0010:__list_del_entry_valid+0x6c/0xa0 Call Trace: release_nodes+0x76/0x260 devres_release_all+0x3c/0x50 device_release_driver_internal+0x159/0x200 device_release_driver+0x12/0x20 bus_remove_device+0xfd/0x170 device_del+0x1e8/0x330 platform_device_del+0x28/0x90 platform_device_unregister+0x12/0x30 nfit_test_exit+0x2a/0x93b [nfit_test] Cc: Signed-off-by: Yasunori Goto Signed-off-by: Dan Williams

ACPI: Switch to use generic guid_t in acpi_evaluate_dsm()

2017-06-07T10:20:49Z

acpi_evaluate_dsm() and friends take a pointer to a raw buffer of 16 bytes. Instead we convert them to use guid_t type. At the same time we convert current users. acpi_str_to_uuid() becomes useless after the conversion and it's safe to get rid of it. Acked-by: Rafael J. Wysocki Cc: Borislav Petkov Acked-by: Dan Williams Cc: Amir Goldstein Reviewed-by: Jarkko Sakkinen Reviewed-by: Jani Nikula Acked-by: Jani Nikula Cc: Ben Skeggs Acked-by: Benjamin Tissoires Acked-by: Joerg Roedel Acked-by: Adrian Hunter Cc: Yisen Zhuang Acked-by: Bjorn Helgaas Acked-by: Felipe Balbi Acked-by: Mathias Nyman Reviewed-by: Heikki Krogerus Acked-by: Mark Brown Signed-off-by: Andy Shevchenko Signed-off-by: Christoph Hellwig

acpi, nfit: fix module unload vs workqueue shutdown race

2017-04-18T17:55:37Z

The workqueue may still be running when the devres callbacks start firing to deallocate an acpi_nfit_desc instance. Stop and flush the workqueue before letting any other devres de-allocations proceed. Reported-by: Linda Knippers Signed-off-by: Dan Williams

tools/testing/nvdimm: fix nfit_test shutdown crash

2017-04-18T17:26:09Z

Keep the nfit_test instances alive until after nfit_test_teardown(), as we may be doing resource lookups until the final un-registrations have completed. This fixes crashes of the form. BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 IP: __release_resource+0x12/0x90 Call Trace: remove_resource+0x23/0x40 __wrap_remove_resource+0x29/0x30 [nfit_test_iomap] acpi_nfit_remove_resource+0xe/0x10 [nfit] devm_action_release+0xf/0x20 release_nodes+0x16d/0x2b0 devres_release_all+0x3c/0x60 device_release+0x21/0x90 kobject_release+0x6a/0x170 kobject_put+0x2f/0x60 put_device+0x17/0x20 platform_device_unregister+0x20/0x30 nfit_test_exit+0x36/0x960 [nfit_test] Reported-by: Linda Knippers Signed-off-by: Dan Williams

tools/testing/nvdimm: test acpi 6.1 health state flags

2017-04-17T19:34:17Z

Add a simulated dimm with an ACPI_NFIT_MEM_MAP_FAILED indication, and set the ACPI_NFIT_MEM_HEALTH_ENABLED flag on all the dimms where nfit_test simulates health events, but spread it out over several redundant memdev entries to test that the nfit driver coalesces all the flags. Signed-off-by: Dan Williams

tools/testing/nvdimm: make iset cookie predictable

2017-03-01T08:09:51Z

For testing changes to the iset cookie algorithm we need a value that is constant from run-to-run. Stop including dynamic data in the emulated region_offset values. Also, pick values that sort in a different order depending on whether the comparison is a memcmp() of two 8-byte arrays or subtraction of two 64-bit values. Signed-off-by: Dan Williams

Merge branch 'for-4.10/libnvdimm' into libnvdimm-for-next

2016-12-17T23:08:10Z

tools/testing/nvdimm: unit test acpi_nfit_ctl()

2016-12-07T01:42:36Z

A recent flurry of bug discoveries in the nfit driver's DSM marshalling routine has highlighted the fact that we do not have unit test coverage for this routine. Add a self-test of acpi_nfit_ctl() routine before probing the "nfit_test.0" device. This mocks stimulus to acpi_nfit_ctl() and if any of the tests fail "nfit_test.0" will be unavailable causing the rest of the tests to not run / fail. This unit test will also be a place to land reproductions of quirky BIOS behavior discovered in the field and ensure the kernel does not regress against implementations it has seen in practice. Signed-off-by: Dan Williams

tools/testing/nvdimm: dynamic label support

2016-10-19T15:57:33Z

Update nfit_test infrastructure to enable labels for the dimm on the nfit_test.1 bus. This bus has a pmem region without aliased blk space, so it is a candidate for dynamically enabling label support by writing a namespace index block. Signed-off-by: Dan Williams

Merge branch 'for-4.9/libnvdimm' into libnvdimm-for-next

2016-10-07T23:46:24Z