On Fri, Aug 26, 2022 at 02:40:58AM +0000, Elliott, Robert (Servers) wrote: > > Suggestion: please revert the sha512-x86 patch for a while. This problem would have existed anyway if the module was built into the kernel. > Do these functions need to break up their processing into smaller chunks > (e.g., a few Megabytes), calling kernel_fpu_end() periodically to > allow the scheduler to take over the CPUs if needed? If so, what > chunk size would be appropriate? Yes these should be limited to 4K each. It appears that all the sha* helpers in arch/x86/crypto have the same problem. Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
