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| Filename | Latest commit message | Latest commit date |
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08d9db00fe
The i2c-scmi driver crashes when the SMBus Write Block transaction is executed: WARNING: CPU: 9 PID: 2194 at mm/page_alloc.c:3931 __alloc_pages_slowpath+0x9db/0xec0 Call Trace: ? get_page_from_freelist+0x49d/0x11f0 ? alloc_pages_current+0x6a/0xe0 ? new_slab+0x499/0x690 __alloc_pages_nodemask+0x265/0x280 alloc_pages_current+0x6a/0xe0 kmalloc_order+0x18/0x40 kmalloc_order_trace+0x24/0xb0 ? acpi_ut_allocate_object_desc_dbg+0x62/0x10c __kmalloc+0x203/0x220 acpi_os_allocate_zeroed+0x34/0x36 acpi_ut_copy_eobject_to_iobject+0x266/0x31e acpi_evaluate_object+0x166/0x3b2 acpi_smbus_cmi_access+0x144/0x530 [i2c_scmi] i2c_smbus_xfer+0xda/0x370 i2cdev_ioctl_smbus+0x1bd/0x270 i2cdev_ioctl+0xaa/0x250 do_vfs_ioctl+0xa4/0x600 SyS_ioctl+0x79/0x90 do_syscall_64+0x73/0x130 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 ACPI Error: Evaluating _SBW: 4 (20170831/smbus_cmi-185) This problem occurs because the length of ACPI Buffer object is not defined/initialized in the code before a corresponding ACPI method is called. The obvious patch below fixes this issue. Signed-off-by: Edgar Cherkasov <echerkasov@dev.rtsoft.ru> Acked-by: Viktor Krasnov <vkrasnov@dev.rtsoft.ru> Acked-by: Michael Brunner <Michael.Brunner@kontron.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.