Searched hist:"8 e8a12ec" (Results 1 – 1 of 1) sorted by relevance
/openbmc/linux/arch/powerpc/kernel/ |
H A D | head_85xx.S | 8e8a12ec Mon Sep 25 10:55:51 CDT 2023 Christophe Leroy <christophe.leroy@csgroup.eu> powerpc/85xx: Fix math emulation exception
Booting mpc85xx_defconfig kernel on QEMU leads to:
Bad trap at PC: fe9bab0, SR: 2d000, vector=800 awk[82]: unhandled trap (5) at 0 nip fe9bab0 lr fe9e01c code 5 in libc-2.27.so[fe5a000+17a000] awk[82]: code: 3aa00000 3a800010 4bffe03c 9421fff0 7ca62b78 38a00000 93c10008 83c10008 awk[82]: code: 38210010 4bffdec8 9421ffc0 7c0802a6 <fc00048e> d8010008 4815190d 93810030 Trace/breakpoint trap WARNING: no useful console
This is because allthough CONFIG_MATH_EMULATION is selected, Exception 800 calls unknown_exception().
Call emulation_assist_interrupt() instead.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/066caa6d9480365da9b8ed83692d7101e10ac5f8.1695657339.git.christophe.leroy@csgroup.eu
|