https://bugzilla.kernel.org/show_bug.cgi?id=204479
--- Comment #18 from Christophe Leroy (christophe.le...@c-s.fr) ---
The Oops occurs at 0x3c8:
3b0: 81 21 00 88 lwz r9,136(r1)
3b4: 13 67 dc c4 vxor v27,v7,v27
3b8: 7d 11 a8 ce lvx v8,r17,r21
3bc: 11 5f 5b 06 vcmpgtsb v10,v31,v11
3c0: 11 6b 58 00 vaddubm v11,v11,v11
3c4: 81 41 00 8c lwz r10,140(r1)
>3c8: 7c 00 48 ce lvx v0,0,r9
This is because the value in r9 is most likely wrong.
r9 is loaded from the stack at 0x3b0
r9 was calculated and stored in the stack by the below code.
70: 3d 20 00 00 lis r9,0
72: R_PPC_ADDR16_HA .rodata.cst16
74: 3b b3 00 10 addi r29,r19,16
78: 39 29 00 00 addi r9,r9,0
7a: R_PPC_ADDR16_LO .rodata.cst16
7c: 91 21 00 88 stw r9,136(r1)
The value comes from .rodata.cst16
Two possibilities, either the value in .rodata.cst16 is wrong or the stack gets
corrupted.
Maybe you could try disabling KASAN in lib/raid6/Makefile for altivec8.o ? Or
maybe for the entire lib/raid6/ directory, just to see what happens ?
--
You are receiving this mail because:
You are on the CC list for the bug.
