Unverified Commit a828e118 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
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!4812 parisc: Clear stale IIR value on instruction access rights trap 

Merge Pull Request from: @ci-robot 
 
PR sync from: Cheng Yu <serein.chengyu@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/JIWIVZKVCZM5E76BMCNMQDMRL3NNN2KT/ 
 
https://gitee.com/src-openeuler/kernel/issues/I947PH 
 
Link:https://gitee.com/openeuler/kernel/pulls/4812

 

Reviewed-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
Signed-off-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
parents 9632dafe 4fea6224

arch/parisc/kernel/traps.c

+2 −0
Original line number Diff line number Diff line
@@ -697,6 +697,8 @@ void notrace handle_interruption(int code, struct pt_regs *regs) 
			}

			up_read(&current->mm->mmap_sem);

		}

		/* CPU could not fetch instruction, so clear stale IIR value. */

		regs->iir = 0xbaadf00d;

		/* Fall Through */

	case 27: 

		/* Data memory protection ID trap */