CVS commit: src/sys/arch/amd64/amd64

["Maxime Villard" <maxv%netbsd.org@localhost>]

Module Name:    src
Committed By:   maxv
Date:           Wed Aug 22 17:25:02 UTC 2018

Modified Files:
        src/sys/arch/amd64/amd64: asan.c

Log Message:
Unwind the stack on error, to get the full path that led to the illegal
access. Example of output:

kASan: Unauthorized Access In 0xffffffff80e6219c: Addr 0xffffbb007a39fd03 [1 byte, read]
#0 0xffffffff80e6219c in ras_purgeall <netbsd>
#1 0xffffffff80e62330 in sys_rasctl <netbsd>
#2 0xffffffff80265008 in syscall <netbsd>

(I manually added a one-byte stack read overflow in rasctl to demonstrate.)


To generate a diff of this commit:
cvs rdiff -u -r1.4 -r1.5 src/sys/arch/amd64/amd64/asan.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.