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A kernel crash occurs when the aes_s390 kernel module is removed on machines < z14. This only happens on kernel version 4.15 and higher on machines not supporting MSA 8. The reason for the crash is a unconditional crypto_unregister_aead() invocation where no previous crypto_register_aead() had been called. The fix now remembers if there has been a successful registration and only then calls the unregister function upon kernel module remove. The code now crashing has been introduced with "bf7fa03 s390/crypto: add s390 platform specific aes gcm support." Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> |
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| kernel | ||
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.