Re: [PATCH] x86/split_lock: Sanitize userspace and guest error output

On 6/6/2020 12:42 AM, Prarit Bhargava wrote: On 6/5/20 11:29 AM, Xiaoyao Li wrote: On 6/5/2020 7:44 PM, Prarit Bhargava wrote: There are two problems with kernel messages in fatal mode that were found during testing of guests and userspace programs. The first is that no kernel message is out

Re: [PATCH] x86/split_lock: Sanitize userspace and guest error output

On 6/5/20 11:29 AM, Xiaoyao Li wrote: > On 6/5/2020 7:44 PM, Prarit Bhargava wrote: >> There are two problems with kernel messages in fatal mode that >> were found during testing of guests and userspace programs. >> >> The first is that no kernel message is output when the split lock detector >>

Re: [PATCH] x86/split_lock: Sanitize userspace and guest error output

On 6/5/2020 7:44 PM, Prarit Bhargava wrote: There are two problems with kernel messages in fatal mode that were found during testing of guests and userspace programs. The first is that no kernel message is output when the split lock detector is triggered with a userspace program. As a result th

[PATCH] x86/split_lock: Sanitize userspace and guest error output

There are two problems with kernel messages in fatal mode that were found during testing of guests and userspace programs. The first is that no kernel message is output when the split lock detector is triggered with a userspace program. As a result the userspace process dies from receiving SIGBUS