On Sat, Aug 26, 2023 at 10:23:41PM +0800, Huacai Chen wrote: > This is a port of commit 379eb01c21795edb4c ("riscv: Ensure the value > of FP registers in the core dump file is up to date"). > > The values of FP/SIMD registers in the core dump file come from the > thread.fpu. However, kernel saves the FP/SIMD registers only before > scheduling out the process. If no process switch happens during the > exception handling, kernel will not have a chance to save the latest > values of FP/SIMD registers. So it may cause their values in the core > dump file incorrect. To solve this problem, force fpr_get()/simd_get() > to save the FP/SIMD registers into the thread.fpu if the target task > equals the current task. > > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Huacai Chen <chenhuacai@xxxxxxxxxxx> > --- > V2: Rename get_fpu_regs() to save_fpu_regs(). What stable tree(s) is this for? thanks, greg k-h