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${ noResults }
zephyr/kernel
When enabling CONFIG_FP_SHARING on ARM, 64 extra bytes are necessary on the stack of each task in order to save FPU registers S16 to S31. In the case of the idle stack, the default value of 256 bytes is too small. As described in ZEP-1470, when the idle task is scheduled out, floating point registers are saved, which corrupts the stack frame (especially the saved PC value). When scheduling the idle task, the restored PC will jump to nowhere, leading to a Usage Fault. Increase the size of the idle stack by 64 bytes to fix this issue. JIRA: ZEP-1470 Change-Id: Ib800cd51e5189dda8bf59332db661c21399db3e3 Signed-off-by: Florian Vaussard <florian.vaussard@heig-vd.ch> Signed-off-by: Kumar Gala <kumar.gala@linaro.org> |
8 years ago | |
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.. | ||
configs | kernel: remove nano and micro default configs | 9 years ago |
unified | kernel: arm: Increase idle stack size to fix corruption by FP_SHARING | 8 years ago |
Kconfig | kernel: Eliminate use of KERNEL_V2 configuration option | 9 years ago |